- Credit score:
- Reliable
- Reputation score:
- 43,590
- Employees:
- 256
- Forecast turnover (2026):
- 102,512,604 €
Durable, economical and smart solutions!
TREV-2 Group is a company focused on the construction and maintenance of infrastructure objects and facilities.
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sanitation
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installation
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sewer system
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maintenance of public roads
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audit of construction works
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expert assessment of building design documentation
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construction research
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construction of gas installation
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making of traffic management projects
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pressure equipment works
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construction of roads and bridges
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tea care
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environmental construction
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mining of mineral resources
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traffic management
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road project management
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project management of bridges
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production and installation of asphalt
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building equipment rental
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car wash service
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building
-
construction
-
design
-
construction work
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maintenance
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repair work
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repair
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rebuilding
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the warehouse
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noise barrier walls
- Credit score:
- Reliable
- Reputation score:
- 43,230
- Employees:
- 152
- Forecast turnover (2026):
- 83,992,448 €
Construction of electricity and communications networks
construction and installation of cable lines in data communication networks, design of external data networks, design and construction of substations, construction and installation of cable lines, construction and maintenance of overhead lines, troubleshooting and regular maintenance, design and construction of external data networks, construction of connecting lines and substations, construction and installation of electrical and communication lines, design and construction of wind, solar and hybrid parks
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construction of cable tracks
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construction and installation of cable lines
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construction and installation of cable lines in data communication networks
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maintenance of systems, search and repair of faults
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high voltage networks
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low and medium voltage networks
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telecommunications networks
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gas networks
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geodesy and design
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high voltage laboratory
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green energy
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construction of substations
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design of gas stations
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design of utility networks and utility works
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preparation of a work project
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elimination of malfunctions
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design of external data networks
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design and construction of substations
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construction and maintenance of overhead lines
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troubleshooting and regular maintenance
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design and construction of external data networks
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construction and maintenance of overhead lines in data communication networks
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regular maintenance of external data networks and elimination of malfunctions
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design and construction of wind, solar and hybrid parks
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construction and installation of electrical and communication lines
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construction of connecting lines and substations
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construction of electricity and communications networks
- Credit score:
- Reliable
- Reputation score:
- 37,200
- Employees:
- 230
- Forecast turnover (2026):
- 50,563,072 €
Machining of metals
electric cabinets, Wiring sets, Plastic components, Production of series, system solutions, Control systems, custom panels, installation service, Cable sets, Electromechanics
- Credit score:
- Reliable
- Reputation score:
- 15,480
- Employees:
- 38
- Forecast turnover (2026):
- 17,468,702 €
Water supply and sewage works
We have built outdoor networks both within the boundaries of a private owner's property and on city streets and other public lands. We also offer external network design services.
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sanitation
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installation
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heating systems construction
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construction and real estate
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construction and real estate services
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building construction firms
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energy and mineral resources
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heating
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heating solutions
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mineral resources and natural resources
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equipment and machinery
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general and home services
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construction
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construction
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sewer accessories
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trackwork
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logistics
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internal networks
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customers
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solutions
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buildings
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apartment buildings
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shopping centres
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private houses
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office buildings
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objects
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hotels
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water pipeline installation
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public buildings
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high-quality construction
- Credit score:
- Reliable
- Reputation score:
- 11,470
- Employees:
- 23
- Forecast turnover (2026):
- 19,064,182 €
Building construction works
Water supply pipe works, cooling system, Installation of doors, Installation work of fire alarm system, Construction work for entertainment centres, Warehouse construction work, Construction work for kindergartens, building finishing works, Construction work on buildings related to leisure, sports, culture, accommodation and restaurants, Installation work of electrical wiring and equipment
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construction and maintenance
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cooling system
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construction and real estate
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construction and real estate services
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building construction firms
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construction
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heritage conservation
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fire safety
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construction
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restoration
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reconstruction
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historical preservation
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apartment buildings
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school buildings
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public buildings
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general construction
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walls
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apartment building
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solar energy panels
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nurseries
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heat-recovery ventilation
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windows
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water floor heating
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roof
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additional fee
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measurements
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shooting range
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environmental conservation
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objects
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owner supervision
- Credit score:
- Reliable
- Reputation score:
- 8,830
- Employees:
- 47
- Forecast turnover (2026):
- 9,936,866 €
Installation of air conditioning systems
Non-residential property services, electrical installation works, Operation of heating systems, ventilation system inspection, Installation of road lighting, technical design services, Installation work of ventilation equipment, Installation of ventilation and air conditioning systems, Repair and maintenance services of cooling equipment, Repair and maintenance services of central heating appliances
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installation of cables and supporting structures for cable line bases
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technical systems
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technical systems maintenance
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building automation systems
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electrical systems
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installation of air conditioning systems
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construction
-
construction
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cooling and air conditioning systems, heat pumps
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rental workforce mediation
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design
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installation and switching of various electrical equipment
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working and emergency lighting, led downlight
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grounding and lightning protection
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external networks
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electric heating
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assembly and installation of force and control shields
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management systems for industrial and residential buildings
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electrical systems and automation
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air channel cleaning
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heat pumps
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welding work
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ventilation, cooling and heating systems
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heat pumps
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refrigerated appliances
- Credit score:
- Reliable
- Reputation score:
- 8,310
- Employees:
- 45
- Forecast turnover (2026):
- 1,909,396 €
Installation of sanitary equipment
sanitation, heat pumps installation, water supply and sanitation works, Design, Installation, Design and installation, private houses, santechnical works, sprinkler, sewer works
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cooling and air conditioning systems, heat pumps
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systems design
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installation
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sanitation
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sewer works
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fire safety
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construction
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inspection and maintenance
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design, construction and maintenance of fire safety
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complete solutions of the outer shell of the building
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outsourcing
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metal cladding
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ventilation work
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installation of heat pumps and air conditioners
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sprinkler and firefighting
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water supply and sanitation works
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heat pumps installation
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water supply and sanitation works
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design
-
design and installation
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private houses
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tallinn
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maintenance
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santechnical works
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sprinkler
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installation of sanitary equipment
- Credit score:
- Reliable
- Reputation score:
- 5,570
- Employees:
- 34
- Forecast turnover (2026):
- 2,481,800 €
Installation of electrical equipment
Building, outdoor lighting construction, design work, Design, Installation, maintenance, solar panels installation, electrical and low-current works, Solar Station, electrical measurements
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weak current systems
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security systems
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automation systems
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electrical systems
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low current systems
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installation
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design, construction and maintenance of fire safety
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electricity and automation
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design and installation
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electrical measurement
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fire alarm system
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strong current systems
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electrical measurements
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outdoor lighting construction
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design work
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design
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maintenance
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building
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weak current electrical work
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solar panels installation
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solar station
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electrical and low-current works
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installation of electrical equipment
- Credit score:
- Reliable
- Reputation score:
- 5,190
- Employees:
- 14
- Forecast turnover (2026):
- 6,273,711 €
Warmth for Today, Energy for Tomorrow!
We offer a comprehensive range of services including the sale and installation of heat pumps, ventilation systems, and regular maintenance.
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installation
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ventilation systems
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solar heating systems
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hybrid systems
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fläktgroup systems
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heating system
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installation of air conditioning systems
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heat pumps
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ventilation
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regular maintenance
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sale and installation of equipment
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consulting
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documentation
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project management
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heat pump maintenance
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ground source heat pumps
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air to water heat pumps
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heat pump installation
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custom heating solutions
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energy-efficient heating
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industrial heat pumps
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cleanroom technology
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data center cooling equipment
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heat distribution solutions
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geothermal collectors
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heat pump consulting services
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regular maintenance
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consultations
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ground heat
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air / water
- Credit score:
- Reliable
- Reputation score:
- 5,000
- Employees:
- 7
- Forecast turnover (2026):
- 3,284,923 €
Pipeline and heating installation
ventilation, bosch climate engineering, City Climate, heating solution, balancing the heating system, ground heat, ground source heat pump, Smart Management, solar heating, underfloor heating
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sewerage
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installation
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cooling system
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sanitation
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cooling systems
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ventilation
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bosch climate engineering
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city climate
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heating solution
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balancing the heating system
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ground heat
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ground source heat pump
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smart management
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solar heating
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underfloor heating
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the heat center
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heat pump maintenance
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thermia
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air to air heat pump
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heat pumps
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air to water heat pump
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floor pouring
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excavation work
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question
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ground source heat pumps
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radiator heating
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cooling
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indoor climate
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warm node
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heating system installation
- Credit score:
- Reliable
- Reputation score:
- 4,330
- Employees:
- 4
- Forecast turnover (2026):
- 3,371,560 €
Installation of air conditioning systems
ventilation systems, Installation, maintenance, Products, Diamond Drilling, inspection, ventilation, periodic inspection, maintenance work, ventilation equipment sales
- Credit score:
- Borderline
- Reputation score:
- 4,200
- Employees:
- 19
- Forecast turnover (2026):
- 2,937,042 €
Construction of electricity and communications networks
Energy, energy and mineral resources, heating, rental workforce mediation, Communications and computer networks, Construction of substations, construction of air and ground cable lines, stress work, installation of end and extension sleeves, switches
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energy
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construction of air and ground cable lines
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construction of grounding and lightning protection systems
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construction of lightning protection systems
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construction and maintenance
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grounding systems
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energy and mineral resources
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heating
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rental workforce mediation
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communications and computer networks
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construction of substations
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stress work
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installation of end and extension sleeves
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switches
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construction of industrial automation
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control measurements of electrical installations
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control measurements of installations
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control measurements
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voltage works 0,4 to 20 kv
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installation of end and extension sleeves up to 52 kv
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communication lines
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outdoor lighting
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industrial automation
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installation of end and extension sleeves 52 kv
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design
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electrical consultancy
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search and remediation of breakdowns
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electricity
-
installation work
-
building
- Credit score:
- Reliable
- Reputation score:
- 3,930
- Employees:
- 18
- Forecast turnover (2026):
- 1,392,099 €
Installation of electrical equipment
energy, building and finishing materials, electrical equipment, Energy, energy and mineral resources, heating, Construction work for power lines, Installation of road lighting, Construction work for communication lines, Installation of external lighting
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energy
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installation
-
design of weak current systems
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design of strong current systems
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audit of defence and management systems
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installation
-
energy
-
construction and real estate
-
building and finishing materials
-
electrical equipment
-
energy and mineral resources
-
heating
-
construction
-
construction
-
electrical construction
-
design
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handle management
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control measurements
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audit
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design of external and internal parts
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design of lighting
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construction of supply lines
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construction of internal electrical installations
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lightning protection construction
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assembly of shields
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technical inspection
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reporting and documentation
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risk analysis
-
design
-
electrical works company
- Credit score:
- Reliable
- Reputation score:
- 3,790
- Employees:
- 5
- Forecast turnover (2026):
- 739,564 €
Energizing Progress, Constructing Reliability.
We specialize in the construction and maintenance of gas and heating systems, utilizing certified welding processes and offering expert insulation services for a variety of equipment and pipelines.
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construction and maintenance of energy systems
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construction of heating systems
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gas systems
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maintenance of energy systems
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installation
-
heating systems construction
-
construction and real estate
-
building and finishing materials
-
energy
-
energy and mineral resources
-
heating solutions
-
fuels
-
mineral resources and natural resources
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mineral resources and raw materials
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equipment and machinery
-
construction
-
construction
-
gas works
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pressure equipment works
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steam piping
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warmth nodes
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water supply pipelines
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boiler houses
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sound insulation of equipment
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pressure pipelines
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district heating pipelines
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process pipelines
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natural gas and liquefied gas installations
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gas trails of plastic and steel
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gas blowers and emitters
- Credit score:
- Reliable
- Reputation score:
- 3,780
- Employees:
- 5
- Forecast turnover (2026):
- 1,637,004 €
Roofing
Construction, Construction, flat roof installation, roof installation, roof construction, roof trimming, ceiling installation, construction of the ceiling, trimming the ceiling, roof renovation
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drainage systems
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installation
-
construction
-
construction
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flat roof installation
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roof installation
-
roof construction
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roof trimming
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ceiling installation
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construction of the ceiling
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trimming the ceiling
-
roof renovation
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flat roofs of residential buildings
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flat roof covering
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roof structures
-
roofing supplies
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flat roof
-
choice of roofing materials
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choice of roof structures
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roof coverings
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lamekatused oü
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manufacture of roofing materials
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manufacture of roof structures
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roof repair
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roof design
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construction of substructures
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installation of waterproofing
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installation of roofing and drainage system
-
construction of ventilation system
-
final inspection
- Credit score:
- Reliable
- Reputation score:
- 3,770
- Employees:
- 10
- Forecast turnover (2026):
- 643,399 €
Building Smarter, Living Better!
We provide a full spectrum of construction and technical services, from project design to finishing works.
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installation
-
heating systems
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automation and electrical works
-
construction of residential and non-residential buildings
-
san technical works
-
construction services
-
project design
-
finishing works
-
residential construction services
-
construction project management
-
sanitary technical services
-
non-residential building construction
-
electrical work contractors
-
interior finishing services
-
automation electrical services
-
building finishing contractors
-
commercial construction services
-
construction service providers
-
building project design services
-
industrial construction services
-
custom home building services
-
renovation and remodeling services
-
automation and electrical works
-
construction of residential and non-residential buildings
-
sanitary technical works
-
design
-
housing construction
-
project management
-
trade projects
-
sustainable solutions
- Credit score:
- Borderline
- Reputation score:
- 3,730
- Employees:
- 19
- Forecast turnover (2026):
- 1,724,776 €
Installation of sanitary equipment
water supply, heating solutions, Sewer systems, water mains, floor heating, water-measuring nodes, Plumbing, draining, wastewater disposal, heating elements
- Credit score:
- Reliable
- Reputation score:
- 3,690
- Employees:
- 6
- Forecast turnover (2026):
- 619,548 €
Installation of sanitary equipment
balancing heating systems, heating solutions, Plumbing and fittings, Water Systems, Washing of heating systems, Construction, Construction, plumbing services, Water floor heating, Replacement of shutters
-
water systems
-
washing of heating systems
-
installation
-
sewer system
-
heating system
-
heating systems construction
-
heating systems renovation
-
balancing heating systems
-
construction and real estate
-
heating solutions
-
plumbing and fittings
-
general and home services
-
construction
-
construction
-
plumbing services
-
water floor heating
-
replacement of shutters
-
sewer construction
-
balancing the heating system
-
sanitary equipment installation
-
tube replacement
-
repair and cleaning
-
elimination of blockages
-
heating system construction
-
renovation and maintenance
-
shift of trousers
-
sewerage
-
floor
-
renovation
-
repair
- Credit score:
- Borderline
- Reputation score:
- 3,680
- Employees:
- 13
- Forecast turnover (2026):
- 1,808,101 €
Installation of air conditioning systems
system configuration, Insulation of ventilation systems, partial solution installation, Construction, Construction, construction and surveying, Design, maintenance and insulation, ventilation system installation, Installation
-
installation
-
system configuration
-
ventilation systems installation
-
design of ventilation systems
-
maintenance of ventilation systems
-
measurement of ventilation systems
-
insulation of ventilation systems
-
construction and real estate
-
construction and real estate services
-
building construction firms
-
construction
-
construction
-
construction and surveying
-
design
-
maintenance and insulation
-
ventilation system installation
-
full-solution installation
-
partial solution installation
-
installation of pipes and ducts
-
system cleaning
-
change of filters
-
technical maintenance
-
production buildings
-
indoor climate
-
maintenance
-
activities
-
all over estonia
-
ventilation maintenance
-
construction of ventilation systems
-
tartu
- Credit score:
- Reliable
- Reputation score:
- 3,600
- Employees:
- 11
- Forecast turnover (2026):
- 1,927,934 €
Installation of air conditioning systems
Sales, climate control systems, sun protection systems, Sound insulation, ventilation, energy-saving solutions, Installation, Tartu, smoke removal, maintenance
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smoke extraction systems
-
daylighting systems
-
climate control systems
-
sun protection systems
-
installation
-
installation of air conditioning systems
-
construction and real estate
-
building and finishing materials
-
interior
-
machinery and tools
-
fire safety equipment
-
rescue equipment
-
security and surveillance services
-
lighting technology
-
fire safety
-
inspection and maintenance
-
design, construction and maintenance of fire safety
-
ventilation
-
energy-saving solutions
-
sales
-
sunscreen
-
tallinn
-
tartu
-
maintenance
-
smoke removal