- Credit score:
- Reliable
- Reputation score:
- 44,110
- Employees:
- 266
- Forecast turnover (2026):
- 97,564,829 €
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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maintenance of public roads
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construction of gas installation
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production and installation of asphalt
-
development
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sanitation
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installation
-
installation work
-
audit of construction works
-
expert assessment of building design documentation
-
construction research
-
making of traffic management projects
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pressure equipment works
-
construction of roads and bridges
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tea care
-
environmental construction
-
mining of mineral resources
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traffic management
-
road project management
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project management of bridges
-
building equipment rental
-
car wash service
-
building
-
construction
-
design
-
construction work
-
maintenance
-
repair work
-
repair
-
rebuilding
-
the warehouse
- Credit score:
- Reliable
- Reputation score:
- 42,410
- Employees:
- 234
- Forecast turnover (2026):
- 52,711,694 €
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:
- 38,880
- Employees:
- 157
- Forecast turnover (2026):
- 97,801,989 €
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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elimination of malfunctions
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construction and installation of cable lines
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construction and installation of cable lines in data communication networks
-
construction and installation of electrical and communication lines
-
maintenance of systems, search and repair of faults
-
high voltage networks
-
low and medium voltage networks
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telecommunications networks
-
gas networks
-
geodesy and design
-
high voltage laboratory
-
green energy
-
construction of substations
-
design of gas stations
-
design of utility networks and utility works
-
preparation of a work project
-
design of external data networks
-
design and construction of substations
-
construction and maintenance of overhead lines
-
troubleshooting and regular maintenance
-
design and construction of external data networks
-
construction and maintenance of overhead lines in data communication networks
-
regular maintenance of external data networks and elimination of malfunctions
-
design and construction of wind, solar and hybrid parks
-
construction of connecting lines and substations
-
construction of electricity and communications networks
- Credit score:
- Reliable
- Reputation score:
- 14,990
- Employees:
- 38
- Forecast turnover (2026):
- 18,909,608 €
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
-
installation
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heating systems construction
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water pipeline installation
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construction of external networks
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construction of sewer lines
-
construction and real estate
-
construction and real estate services
-
building construction firms
-
energy and mineral resources
-
heating
-
heating solutions
-
mineral resources and natural resources
-
equipment and machinery
-
general and home services
-
construction
-
construction
-
sewer accessories
-
trackwork
-
logistics
-
internal networks
-
customers
-
solutions
-
buildings
-
apartment buildings
-
shopping centres
-
private houses
-
office buildings
-
objects
-
hotels
- Credit score:
- Reliable
- Reputation score:
- 9,530
- Employees:
- 44
- Forecast turnover (2026):
- 12,058,908 €
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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installation and switching of various electrical equipment
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assembly and installation of force and control shields
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technical systems
-
installation of air conditioning systems
-
construction
-
construction
-
cooling and air conditioning systems, heat pumps
-
rental workforce mediation
-
design
-
working and emergency lighting, led downlight
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grounding and lightning protection
-
external networks
-
electric heating
-
management systems for industrial and residential buildings
-
electrical systems and automation
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technical systems maintenance
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air channel cleaning
-
heat pumps
-
welding work
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ventilation, cooling and heating systems
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building automation systems
-
electrical systems
-
heat pumps
-
refrigerated appliances
- Credit score:
- Borderline
- Reputation score:
- 7,110
- Employees:
- 46
- Forecast turnover (2026):
- 2,111,395 €
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
-
complete solutions of the outer shell of the building
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installation of heat pumps and air conditioners
-
systems design
-
installation
-
sanitation
-
sewer works
-
installation of sanitary equipment
-
fire safety
-
construction
-
inspection and maintenance
-
design, construction and maintenance of fire safety
-
outsourcing
-
metal cladding
-
ventilation work
-
sprinkler and firefighting
-
water supply and sanitation works
-
heat pumps installation
-
water supply and sanitation works
-
design
-
design and installation
-
private houses
-
tallinn
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maintenance
-
santechnical works
-
sprinkler
- Credit score:
- Borderline
- Reputation score:
- 5,580
- Employees:
- 34
- Forecast turnover (2026):
- 3,055,384 €
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
-
design, construction and maintenance of fire safety
-
design and installation
-
weak current systems
-
installation
-
solar panels installation
-
installation of electrical equipment
-
electricity and automation
-
electrical measurement
-
security systems
-
fire alarm system
-
strong current systems
-
automation systems
-
electrical systems
-
low current systems
-
electrical measurements
-
outdoor lighting construction
-
design work
-
design
-
maintenance
-
building
-
weak current electrical work
-
solar station
-
electrical and low-current works
- Credit score:
- Reliable
- Reputation score:
- 5,110
- Employees:
- 20
- Forecast turnover (2026):
- 3,323,631 €
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
-
construction of air and ground cable lines
-
installation of end and extension sleeves
-
construction of grounding and lightning protection systems
-
construction of lightning protection systems
-
construction and maintenance
-
outdoor lighting
-
grounding systems
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installation of end and extension sleeves 52 kv
-
energy
-
energy and mineral resources
-
heating
-
rental workforce mediation
-
communications and computer networks
-
construction of substations
-
stress work
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switches
-
construction of industrial automation
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control measurements of electrical installations
-
control measurements of installations
-
control measurements
-
voltage works 0,4 to 20 kv
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installation of end and extension sleeves up to 52 kv
-
communication lines
-
industrial automation
-
design
-
electrical consultancy
-
search and remediation of breakdowns
-
electricity
-
installation work
-
building
- Credit score:
- Reliable
- Reputation score:
- 4,960
- Employees:
- 7
- Forecast turnover (2026):
- 4,023,640 €
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
-
cooling system
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sanitation
-
cooling systems
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installation of radiant floor heating
-
installation of soil collector
-
maintenance of heat pumps
-
ventilation
-
bosch climate engineering
-
city climate
-
heating solution
-
balancing the heating system
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ground heat
-
ground source heat pump
-
smart management
-
solar heating
-
underfloor heating
-
the heat center
-
heat pump maintenance
-
thermia
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air to air heat pump
-
heat pumps
-
air to water heat pump
-
floor pouring
-
excavation work
-
question
-
ground source heat pumps
-
radiator heating
-
cooling
- Credit score:
- Reliable
- Reputation score:
- 4,720
- Employees:
- 2
- Forecast turnover (2026):
- 171,449 €
Finishing of buildings
metal construction painting, bathroom and toilet tiling, installation of doors, furniture assembly, elimination of water damage, bathroom renovation, tiling and jointing, waterproofing, tiling work, foundation construction
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installation of doors
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installation of sanitary ware
-
installation of internal doors
-
installation of windows
-
installation
-
rebuilding
-
installation of sanitary equipment
-
installation of insulation
-
metal construction painting
-
bathroom and toilet tiling
-
furniture assembly
-
elimination of water damage
-
bathroom renovation
-
tiling and jointing
-
waterproofing
-
tiling work
-
foundation construction
-
plumbing services
-
electrical works and floor heating installation
-
pouring and tiling of stairs
-
demolition of concrete floors
-
sealing of concrete surfaces and facades
-
sealing of glazing and cladding
-
painting, painting, putting up
-
interior decoration of private houses
-
interior finishing of apartments
-
100% overhaul
-
facade insulation and renovation
-
sauna construction and led strip installation
-
terrace building
- Credit score:
- Reliable
- Reputation score:
- 4,330
- Employees:
- 4
- Forecast turnover (2026):
- 3,709,883 €
Installation of air conditioning systems
ventilation systems, Installation, maintenance, Products, Diamond Drilling, inspection, ventilation, periodic inspection, maintenance work, ventilation equipment sales
- Credit score:
- Reliable
- Reputation score:
- 4,190
- Employees:
- 12
- Forecast turnover (2026):
- 1,208,451 €
Warmth and Comfort, Engineered to Last.
We specialize in the design, construction, and maintenance of heating systems, boiler houses, and water supply networks, ensuring efficient energy use and comfort for our clients.
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central heating systems
-
boiler house construction
-
sewer
-
sewerage
-
water pipeline installation
-
construction of boiler house
-
installation of water pipeline
-
construction of boiler houses
-
installation
-
sanitation
-
installation of sanitary equipment
-
energy and mineral resources
-
heating
-
heating solutions
-
equipment and machinery
-
construction
-
construction
-
boiler houses
-
thermal equipment
-
ground heating
-
heat node solution
-
water supply
-
diamond drilling
-
heat nodes
-
eco-friendly ground heating
-
ground source heat pump installation
-
renewable heating
-
sewer construction and maintenance
-
environmentally friendly water solutions
-
industrial water services
- Credit score:
- Reliable
- Reputation score:
- 4,100
- Employees:
- 11
- Forecast turnover (2026):
- 1,960,801 €
Installation of air conditioning systems
Sales, climate control systems, sun protection systems, Sound insulation, ventilation, energy-saving solutions, Installation, Tartu, smoke removal, maintenance
-
design, construction and maintenance of fire safety
-
daylighting 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
-
smoke extraction systems
-
climate control systems
-
ventilation
-
energy-saving solutions
-
sales
-
sunscreen
-
tallinn
-
tartu
-
maintenance
-
smoke removal
- Credit score:
- Reliable
- Reputation score:
- 4,020
- Employees:
- 12
- Forecast turnover (2026):
- 6,275,150 €
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.
-
installation
-
sale and installation of equipment
-
hybrid systems
-
sale of equipment
-
installation of air conditioning systems
-
heat pumps
-
ventilation
-
regular maintenance
-
consulting
-
documentation
-
project management
-
heat pump maintenance
-
ventilation systems
-
ground source heat pumps
-
air to water heat pumps
-
heat pump installation
-
custom heating solutions
-
energy-efficient heating
-
industrial heat pumps
-
cleanroom technology
-
data center cooling equipment
-
heat distribution solutions
-
geothermal collectors
-
solar heating systems
-
heat pump consulting services
-
regular maintenance
-
consultations
-
ground heat
-
air / water
-
industrial
- Credit score:
- Reliable
- Reputation score:
- 3,900
- Employees:
- 7
- Forecast turnover (2026):
- 577,991 €
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
-
washing of heating systems
-
sanitary equipment installation
-
shift of trousers
-
sewerage
-
installation
-
sanitation
-
septic systems installation
-
installation of water floor heating
-
installation of sanitary equipment
-
construction and real estate
-
heating solutions
-
plumbing and fittings
-
water systems
-
general and home services
-
construction
-
construction
-
plumbing services
-
water floor heating
-
replacement of shutters
-
sewer construction
-
balancing the heating system
-
tube replacement
-
repair and cleaning
-
elimination of blockages
-
heating system construction
-
renovation and maintenance
-
floor
-
renovation
-
sewer system
-
repair
- Credit score:
- Borderline
- Reputation score:
- 3,850
- Employees:
- 21
- Forecast turnover (2026):
- 2,098,110 €
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:
- 3,680
- Employees:
- 9
- Forecast turnover (2026):
- 1,233,947 €
Construction of sewer lines
sanitation, construction of pipe pipe, establishment of fire water storage facilities, construction of pumping stations, construction of jars, construction of sewerage system, construction firm, handling, sewer system construction, sanitation services
-
sewer works
-
sewer systems
-
installation of water and waste water tanks
-
construction of pipe pipe
-
construction of jars
-
sanitation
-
installation
-
construction
-
construction
-
construction of public water supply
-
water supply
-
pipes
-
seated fields
-
reservoirs
-
pumps
-
in-plot water supply
-
oil and fat trappers
-
construction of drainage pipelines
-
rainwater pipeline
-
establishment of seepage fields
-
establishment of fire water storage facilities
-
construction of pumping stations
-
construction of sewerage system
-
construction firm
-
handling
-
renovation
-
building and renovation
-
sanitation services
-
sewer system construction
-
construction of storm water pipeline
- Credit score:
- Reliable
- Reputation score:
- 3,670
- Employees:
- 3
- Forecast turnover (2026):
- 511,450 €
Warmth and Comfort, Expertly Delivered!
We provide expert installation, maintenance, and repair services for WOLF devices, ensuring their optimal performance and energy efficiency.
-
heating systems maintenance
-
use of renewable energy
-
installation and repair of equipment
-
installation
-
sale of equipment
-
installation of sewerage systems
-
sale and installation of equipment
-
construction
-
construction
-
energy-saving heating solutions
-
climate control maintenance
-
wolf equipment maintenance
-
wolf device installation
-
wolf systems repair services
-
professional equipment servicing
-
solar heating systems integration
-
heating control units
-
gas installation a-category
-
certified gas repair services
-
hvac maintenance and repair
-
cooling systems technician level 3
-
wolf product sales and installation
-
energy efficiency
-
technological development
-
repair
-
heating solutions
-
maintenance
-
regular checks
-
set up efficiency
-
system updates
- Credit score:
- Reliable
- Reputation score:
- 3,650
- Employees:
- 7
- Forecast turnover (2026):
- 576,337 €
Installation of air conditioning systems
homect, ventilation, air conditioner, cooling, cooling device, maintenance of cooling equipment, Climate, air conditioning, bag filter, repair of geothermal pump
-
climate control installations
-
repair of heating systems
-
installation
-
installation of the inner part
-
installation of the outer part
-
installation
-
maintenance of climate systems
-
installation of air conditioning systems
-
construction and real estate
-
ventilation
-
air conditioner
-
cooling
-
cooling device
-
maintenance of cooling equipment
-
climate
-
air conditioning
-
bag filter
-
repair of geothermal pump
-
repair of heat pumps
-
vent
-
repair of ventilatory
-
ventilation construction
-
ventilation filters
-
ventilation maintenance
-
air water heat pump
-
air-water
-
air heat pump
-
cooling and air conditioning systems, heat pumps
-
climate control maintenance
-
air conditioning units
- Credit score:
- Reliable
- Reputation score:
- 3,520
- Employees:
- 9
- Forecast turnover (2026):
- 1,121,501 €
Raising the Roof with Quality and Care
We specialize in all aspects of roofing work, from planning to final finishing. We offer personalized services, fair prices, and timely execution of work.
-
installation of roof windows
-
installation of window stains
-
installation of wall stains
-
installation of interlaced profiles
-
gutter systems
-
installation
-
construction
-
construction
-
stainwork
-
water work
-
cancer
-
listrofiles
-
window stains
-
renovation
-
roof safety and safety equipment
-
construction of facades
-
roof construction
-
waltz sheet roof construction
-
profile sheet roofs
-
eternite roofs
-
stone roofs
-
roof construction
-
eternite roofs
-
residential construction
-
roof renovation
-
facade construction
-
stone roofing
-
roofing services
-
roof safety equipment
-
roof window installation