- Credit score:
- Reliable
- Reputation score:
- 43,860
- Employees:
- 261
- Forecast turnover (2026):
- 113,860,208 €
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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construction of gas installation
-
environmental construction
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production and installation of asphalt
-
design
-
maintenance
-
repair work
-
repair
-
sanitation
-
renovation
-
maintenance
-
sewer system
-
maintenance of public roads
-
audit of construction works
-
expert assessment of building design documentation
-
construction research
-
making of traffic management projects
-
pressure equipment works
-
construction of roads and bridges
-
tea care
-
mining of mineral resources
-
traffic management
-
road project management
-
project management of bridges
-
building equipment rental
-
car wash service
-
building
-
construction
-
construction work
-
rebuilding
-
the warehouse
- Credit score:
- Reliable
- Reputation score:
- 8,310
- Employees:
- 46
- Forecast turnover (2026):
- 2,613,886 €
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
-
construction
-
cooling and air conditioning systems, heat pumps
-
installation of heat pumps and air conditioners
-
systems design
-
heat pumps installation
-
design
-
fire safety
-
inspection and maintenance
-
design, construction and maintenance of fire safety
-
complete solutions of the outer shell of the building
-
outsourcing
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metal cladding
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ventilation work
-
sprinkler and firefighting
-
water supply and sanitation works
-
water supply and sanitation works
-
installation
-
design and installation
-
private houses
-
sanitation
-
tallinn
-
maintenance
-
santechnical works
-
sewer works
-
sprinkler
-
installation of sanitary equipment
- Credit score:
- Borderline
- Reputation score:
- 6,380
- Employees:
- 35
- Forecast turnover (2026):
- 3,296,582 €
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
-
strong current systems
-
automation systems
-
electrical systems
-
low current systems
-
design
-
building
-
design, construction and maintenance of fire safety
-
electricity and automation
-
design and installation
-
electrical measurement
-
fire alarm system
-
electrical measurements
-
outdoor lighting construction
-
design work
-
installation
-
maintenance
-
weak current electrical work
-
solar panels installation
-
solar station
-
electrical and low-current works
-
installation of electrical equipment
- Credit score:
- Reliable
- Reputation score:
- 5,190
- Employees:
- 22
- Forecast turnover (2026):
- 4,747,535 €
Roofing
foundation insulation, slate stones, hydrotechnical works, Roof bollards, replacement of roof cover, installation of roof systems, Roof construction, roof renovation, roof maintenance, roof repair
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installation of roof systems
-
slate stones
-
gutter systems
-
design
-
renovation
-
repair
-
tartu
-
repair works
-
foundation insulation
-
construction and real estate
-
building construction firms
-
hydrotechnical works
-
roof bollards
-
replacement of roof cover
-
roof construction
-
roof renovation
-
roof maintenance
-
roof repair
-
bitumen roll materials
-
stain roofs
-
cement fibre plates
-
vile roof coverings
-
flat roof coverings
-
flat roof construction
-
roofing
-
hydroinsulation
-
repair and maintenance
-
building
-
warm-up
-
roof
- Credit score:
- Reliable
- Reputation score:
- 5,060
- Employees:
- 19
- Forecast turnover (2026):
- 3,342,003 €
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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heating
-
construction of substations
-
construction of grounding and lightning protection systems
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construction of lightning protection systems
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grounding systems
-
building
-
energy
-
energy and mineral resources
-
rental workforce mediation
-
communications and computer networks
-
construction of air and ground cable lines
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stress work
-
installation of end and extension sleeves
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switches
-
construction of industrial automation
-
control measurements of electrical installations
-
control measurements of installations
-
control measurements
-
construction and maintenance
-
voltage works 0,4 to 20 kv
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installation of end and extension sleeves up to 52 kv
-
communication lines
-
outdoor lighting
-
industrial automation
-
installation of end and extension sleeves 52 kv
-
design
-
electrical consultancy
-
search and remediation of breakdowns
-
electricity
-
installation work
- Credit score:
- Reliable
- Reputation score:
- 4,200
- Employees:
- 12
- Forecast turnover (2026):
- 1,204,898 €
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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heating solutions
-
construction
-
construction
-
central heating systems
-
heat node solution
-
heat nodes
-
ground source heat pump installation
-
energy and mineral resources
-
heating
-
equipment and machinery
-
boiler houses
-
thermal equipment
-
boiler house construction
-
ground heating
-
sewer
-
water supply
-
diamond drilling
-
sewerage
-
eco-friendly ground heating
-
renewable heating
-
water pipeline installation
-
sewer construction and maintenance
-
environmentally friendly water solutions
-
industrial water services
-
thermal equipment installation
-
custom machine solutions
-
construction services
-
construction of boiler house
-
installation of water pipeline
-
construction of boiler houses
- Credit score:
- Reliable
- Reputation score:
- 4,150
- Employees:
- 14
- Forecast turnover (2026):
- 6,111,215 €
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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consulting
-
ventilation systems
-
solar heating systems
-
consultations
-
hybrid systems
-
heating system
-
tartu
-
installation of air conditioning systems
-
heat pumps
-
ventilation
-
regular maintenance
-
installation
-
sale and installation of equipment
-
documentation
-
project management
-
heat pump maintenance
-
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
-
heat pump consulting services
-
regular maintenance
-
ground heat
-
air / water
- Credit score:
- Reliable
- Reputation score:
- 4,120
- Employees:
- 11
- Forecast turnover (2026):
- 2,085,708 €
Installation of air conditioning systems
Sales, climate control systems, sun protection systems, Sound insulation, ventilation, energy-saving solutions, Installation, Tartu, smoke removal, maintenance
-
smoke extraction systems
-
daylighting systems
-
climate control systems
-
sun protection systems
-
tartu
-
maintenance
-
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
-
installation
-
sales
-
sunscreen
-
tallinn
-
smoke removal
- Credit score:
- Reliable
- Reputation score:
- 4,100
- Employees:
- 8
- Forecast turnover (2026):
- 429,196 €
Energizing Your World!
We specialize in comprehensive electrical services, including indoor and outdoor installations, street lighting, electrical projects, and maintenance.
-
heating solutions
-
outdoor lighting
-
electrical surveying work
-
heating system installation
-
outdoor lighting
-
control work on electrical equipment
-
consultations
-
electrical systems
-
construction and real estate
-
energy
-
design companies
-
installation of electrical installations
-
electricity projects
-
work in the field
-
external electrical works
-
construction and real estate services
-
electrical equipment installation
-
electrical measurements
-
electrical maintenance services
-
energy solutions
-
design companies in electricity
-
outdoor lighting services
-
electrical project design
-
field work electrical
-
electricity works indoor and outdoor
-
street lighting electrical services
-
energy
-
street lighting
-
installation of electrical equipment
-
interior installations
- Credit score:
- Reliable
- Reputation score:
- 3,850
- Employees:
- 6
- Forecast turnover (2026):
- 495,410 €
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
-
construction
-
construction
-
washing of heating systems
-
heating systems construction
-
heating systems renovation
-
pipework and heating systems
-
balancing heating systems
-
construction and real estate
-
heating solutions
-
plumbing and fittings
-
water systems
-
general and home services
-
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
-
installation
-
floor
-
renovation
-
sewer system
-
repair
- Credit score:
- Borderline
- Reputation score:
- 3,800
- Employees:
- 20
- Forecast turnover (2026):
- 1,994,934 €
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:
- 3,750
- Employees:
- 6
- Forecast turnover (2026):
- 669,635 €
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
-
air conditioning
-
cooling and air conditioning systems, heat pumps
-
repair of heating systems
-
air conditioning systems
-
ground heating systems
-
ventilation systems
-
tartu
-
construction and real estate
-
ventilation
-
air conditioner
-
cooling
-
cooling device
-
maintenance of cooling equipment
-
climate
-
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
-
climate control maintenance
-
climate control installations
-
air conditioning units
-
heating solutions
-
ground source heat pump installation
- Credit score:
- Reliable
- Reputation score:
- 3,730
- Employees:
- 4
- Forecast turnover (2026):
- 441,676 €
Warmth and Comfort, Expertly Delivered!
We provide expert installation, maintenance, and repair services for WOLF devices, ensuring their optimal performance and energy efficiency.
-
construction
-
construction
-
heating systems maintenance
-
solar heating systems integration
-
heat pumps
-
ventilation systems
-
solar heating systems
-
energy-saving heating solutions
-
climate control maintenance
-
wolf equipment maintenance
-
wolf device installation
-
wolf systems repair services
-
professional equipment servicing
-
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
-
use of renewable energy
-
installation and repair of equipment
-
repair
-
heating solutions
-
maintenance
-
installation
-
regular checks
-
set up efficiency
-
system updates
- Credit score:
- Reliable
- Reputation score:
- 3,590
- Employees:
- 6
- Forecast turnover (2026):
- 1,140,946 €
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.
-
construction and maintenance of energy systems
-
construction of heating systems
-
gas systems
-
construction of gas and heating systems
-
thermal insulation
-
heating systems construction
-
construction and real estate
-
building and finishing materials
-
energy
-
energy and mineral resources
-
heating solutions
-
fuels
-
mineral resources and natural resources
-
mineral resources and raw materials
-
equipment and machinery
-
construction
-
construction
-
gas works
-
pressure equipment works
-
steam piping
-
warmth nodes
-
water supply pipelines
-
boiler houses
-
sound insulation of equipment
-
pressure pipelines
-
district heating pipelines
-
process pipelines
-
natural gas and liquefied gas installations
-
gas trails of plastic and steel
-
gas blowers and emitters
- Credit score:
- Reliable
- Reputation score:
- 3,540
- Employees:
- 11
- Forecast turnover (2026):
- 909,502 €
Roofing
measurement of gutters, rain gutter installation, Repair of gutters, roof safety products, Rainwater drainage, maintenance and cleaning of gutters, construction of stormwater drainage systems, measurement of gutters, acquisition of materials for gutters, installation of rain water gutters
-
construction of stormwater drainage systems
-
safety clothing for use on the roof
-
maintenance
-
rainwater system
-
building
-
views systems
-
rainwater systems installation
-
construction of stormwater drainage systems
-
construction and real estate
-
rain gutter installation
-
repair of gutters
-
roof safety products
-
rainwater drainage
-
maintenance and cleaning of gutters
-
measurement of gutters
-
acquisition of materials for gutters
-
installation of rain water gutters
-
design of drainage system
-
procurement of drainage pipes and filters
-
installation of drainage system
-
snow barriers
-
roof rails
-
rainwater gutters
-
roofing products
-
stormwater drainage construction
-
installation
-
color selection
-
security products
-
sales
-
materials
- Credit score:
- Reliable
- Reputation score:
- 3,510
- Employees:
- 6
- Forecast turnover (2026):
- 1,009,018 €
Installation of air conditioning systems
Industrial ventilation, Construction, Construction, fire-barrier mixture, fire protection silicone, Diamond Drilling, air-to-air heat pumps, air conditioning units, ventilation of large kitchens, ventilation of commercial and industrial buildings
-
construction
-
construction
-
air-to-air heat pumps
-
construction and maintenance of air heating and cooling
-
air source heat pumps
-
air heating
-
installation of air conditioning systems
-
construction and real estate
-
fire-barrier mixture
-
fire protection silicone
-
diamond drilling
-
air conditioning units
-
ventilation of large kitchens
-
ventilation of commercial and industrial buildings
-
ventilation of office and warehouse buildings
-
ventilation of private houses
-
exhaust site extraction
-
construction and maintenance of ventilation
-
fire protection works
-
repair and maintenance of air heating and cooling
-
installation of fire-retardant seal
-
passages
-
fire-barrier partitions and floors
-
plumbing and cables
-
fire protection windows
-
maintenance
-
repair
-
commercial and industrial ventilation
-
construction and maintenance
-
indoor climate
- Credit score:
- Reliable
- Reputation score:
- 3,500
- Employees:
- 14
- Forecast turnover (2026):
- 1,389,468 €
Construction of wells
wells, Construction, Construction, hydrogeological works, drilling wells, ground heating wells, cleaning wells, water and sanitation solutions, registration and liquidation of wells, water and sewerage works
-
construction
-
construction
-
ground heating wells
-
water and sanitation solutions
-
design
-
water systems installation
-
ground heating
-
sanitation installation
-
construction and real estate
-
hydrogeological works
-
drilling wells
-
cleaning wells
-
registration and liquidation of wells
-
water and sewerage works
-
drafting
-
formalisation of documentation
-
drilling
-
analysis of water samples
-
measurements of performance
-
sewer line installation
-
installation of cleaners and containers
-
establishment of infiltration pitches
-
sewerage
-
drilling wells
-
installation
-
drilling well
-
depth
-
sanitation
-
construction of wells
-
frequently asked questions
- Credit score:
- Reliable
- Reputation score:
- 3,460
- Employees:
- 9
- Forecast turnover (2026):
- 1,020,812 €
Installation of air conditioning systems
energy and mineral resources, heating, Equipment and machinery, Gas boiler maintenance, Repair of gas boiler, Washing the heating system, Viessmann Gas Boilers, Gas boiler, Viessmann, Sale of gas boiler
-
heating
-
solar systems
-
heat pumps
-
advice on the construction of heating systems
-
heatpump
-
free consultation
-
installation of air conditioning systems
-
energy and mineral resources
-
equipment and machinery
-
gas boiler maintenance
-
repair of gas boiler
-
washing the heating system
-
viessmann gas boilers
-
gas boiler
-
viessmann
-
sale of gas boiler
-
installation of gas boiler
-
construction of gas installation
-
gas works
-
hot water boilers
-
accumulation tanks
-
room thermostats
-
gas condensation boilers
-
handling of gas boilers
-
maintenance of boilers
-
warranty repair
-
setup
-
accidents and challenges 24h
-
gas boiler spare parts
-
vitocal
- Credit score:
- Reliable
- Reputation score:
- 3,360
- Employees:
- 4
- Forecast turnover (2026):
- 243,360 €
Building construction works
Construction, Construction, private house building, design of private houses, Measurements/Studies, Construction of intra-plot routes, Special Parts Work, the Plot Field Works, construction documentation, preparation of building documentation / application for use and occupancy permits
-
construction
-
construction
-
construction documentation
-
communication systems
-
heating and ventilation
-
electrical and surveillance systems
-
design
-
drainage systems
-
private house building
-
design of private houses
-
measurements/studies
-
construction of intra-plot routes
-
special parts work
-
the plot field works
-
preparation of building documentation / application for use and occupancy permits
-
free advice
-
surveying and surveys
-
preparation of building documentation
-
general construction work of a private house
-
water supply and sewerage
-
sewerage
-
installation
-
engineer
-
tiling services
-
question
-
road and square construction
-
research
-
constructions
-
water supply
-
the sauna house
- Credit score:
- Reliable
- Reputation score:
- 3,320
- Employees:
- 2
- Forecast turnover (2026):
- 188,806 €
Roofing
liquid plastic solutions, roofing and roofing, roof renovation, roof construction, roof maintenance, general building work, snow removal from roofs, terrace building, rainwater system installation, roof repair services
-
roof renovation
-
roof renovation
-
warm-up
-
building
-
renovation
-
views systems
-
repair
-
rainwater system
-
repair work
-
balconies
-
construction solutions
-
liquid plastic solutions
-
roofing and roofing
-
roof construction
-
roof maintenance
-
general building work
-
snow removal from roofs
-
terrace building
-
rainwater system installation
-
roof repair services
-
reliable roofing solutions
-
liquid plastic roofing
-
roof renovation experts
-
flat roof services
-
roof cleaning and painting
-
storm damage roof repair
-
roof safety products installation
-
roofing and roofing materials
-
coating materials
-
single-component liquid plastics