- 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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sanitation
-
sewer system
-
maintenance of public roads
-
audit of construction works
-
expert assessment of building design documentation
-
construction research
-
construction of gas installation
-
making of traffic management projects
-
pressure equipment works
-
construction of roads and bridges
-
tea care
-
environmental construction
-
mining of mineral resources
-
traffic management
-
road project management
-
project management of bridges
-
production and installation of asphalt
-
building equipment rental
-
car wash service
-
building
-
construction
-
design
-
construction work
-
maintenance
-
repair work
-
repair
-
rebuilding
-
the warehouse
-
noise barrier walls
-
development of infrastructure
- 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
-
heating systems construction
-
water pipeline installation
-
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
-
installation
-
solutions
-
buildings
-
apartment buildings
-
shopping centres
-
private houses
-
office buildings
-
objects
-
hotels
-
public buildings
-
high-quality construction
- Credit score:
- Reliable
- Reputation score:
- 10,440
- Employees:
- 4
- Forecast turnover (2026):
- 29,458,760 €
Building Dreams, Designing Futures!
We specialize in the reconstruction of apartment buildings and the creation of luxurious penthouses.
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sanitation
-
management systems
-
reconstruction of apartment buildings
-
penthouses
-
design
-
development projects
-
product development
-
property development projects
-
construction project management
-
building design services
-
building services estonia
-
real estate development estonia
-
apartment building reconstruction
-
penthouses design
-
product development in construction
-
residential design and development
-
community building renovation
-
real estate project planning
-
real estate innovation
-
urban development projects
-
development of roof floors
-
site construction
-
preliminary work
-
design and construction
-
final formulation
-
design and construction work with wooden element
-
design and construction work with site construction
-
reconstruction by site construction
-
the complete solution
-
factory-based elemental reconstruction
- Credit score:
- Reliable
- Reputation score:
- 8,860
- Employees:
- 29
- Forecast turnover (2026):
- 23,154,188 €
Building construction works
authentication, Construction, Construction, Solutions for apartment associations, Complex renovation service, Insulation and finishing of external borders, Kredex Supported Projects, Warehouse and production buildings, Private houses and terraced houses, pharmaceutical compositions for renovation
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renovation of water and sewerage
-
renovation of ventilation systems
-
views systems
-
sanitation
-
management systems
-
construction and real estate
-
construction
-
construction
-
solutions for apartment associations
-
complex renovation service
-
insulation and finishing of external borders
-
kredex supported projects
-
warehouse and production buildings
-
private houses and terraced houses
-
pharmaceutical compositions for renovation
-
improving energy efficiency
-
energy-saving facades
-
insulation and plastering
-
replacement of opening fillers (windows and doors)
-
reconstruction of heating system
-
insulation and finishing of the building's external borders
-
insulation/finishing of external borders
-
plastering of facades
-
insulation of facades
-
insulation of flat roofs
-
additional work on facades
-
apartment, housing associations
-
comprehensive renovation
-
energy-saving solutions
-
full service under the general contract procedure
- Credit score:
- Neutral
- Reputation score:
- 8,310
- Employees:
- 46
- Forecast turnover (2026):
- 2,132,507 €
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
-
water supply and sanitation works
-
systems design
-
water supply and sanitation works
-
sanitation
-
fire safety
-
construction
-
inspection and maintenance
-
design, construction and maintenance of fire safety
-
complete solutions of the outer shell of the building
-
outsourcing
-
metal cladding
-
ventilation work
-
installation of heat pumps and air conditioners
-
sprinkler and firefighting
-
heat pumps installation
-
design
-
installation
-
design and installation
-
private houses
-
tallinn
-
maintenance
-
santechnical works
-
sewer works
-
sprinkler
-
installation of sanitary equipment
- Credit score:
- Reliable
- Reputation score:
- 5,460
- Employees:
- 24
- Forecast turnover (2026):
- 4,719,819 €
Comprehensive solutions for technical systems
HEARUM offers energy-efficient and coordinated technical system solutions for buildings. We help bring together heating, ventilation, cooling, water supply and electrical systems.
- 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
-
water supply
-
water floor heating
-
air water heat pump
-
cooling system
-
sanitation
-
cooling systems
-
water tanks
-
ventilation
-
bosch climate engineering
-
city climate
-
heating solution
-
balancing the heating system
-
ground heat
-
ground source heat pump
-
smart management
-
solar heating
-
underfloor heating
-
the heat center
-
heat pump maintenance
-
thermia
-
air to air heat pump
-
heat pumps
-
air to water heat pump
-
sewerage
-
installation
-
floor pouring
-
excavation work
-
question
-
ground source heat pumps
-
radiator heating
- Credit score:
- Reliable
- Reputation score:
- 4,850
- Employees:
- 39
- Forecast turnover (2026):
- 1,366,454 €
J.V.H. Production
assembly of equipment for energy objects, assembly of metal structures, repair and replacement of heat supply lines, assembly of pipelines and bracket fittings of different definitions, assembly and repair works, metal structures installation, technical maintenance services, environmental protection in construction, energy equipment assembly services, heat supply lines repair
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repair and replacement of heat supply lines
-
heat supply lines repair
-
cooling systems
-
ventilation systems
-
installation of water supply pipelines
-
installation of air conditioning systems
-
assembly of equipment for energy objects
-
assembly of metal structures
-
assembly of pipelines and bracket fittings of different definitions
-
assembly and repair works
-
technical maintenance services
-
environmental protection in construction
-
energy equipment assembly services
-
pipeline assembly services
-
bracket fittings installation
-
industrial repair works
-
estonia engineering services
-
narva assembly company
-
eu subcontracting services
-
marine vessels repair
-
exhaust gas cleaning systems
-
quality assembly works
-
repair of power plant equipment
-
power stations
-
gas stations
-
installation of steel structures
-
structural repairs
-
on-site welding
-
construction of platforms and towers
-
replacement of heat exchanger piping
- Credit score:
- Reliable
- Reputation score:
- 4,200
- 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
-
water supply
-
industrial water services
-
sanitation
-
water and sewerage
-
water services
-
energy and mineral resources
-
heating
-
heating solutions
-
equipment and machinery
-
construction
-
construction
-
boiler houses
-
thermal equipment
-
boiler house construction
-
ground heating
-
heat node solution
-
sewer
-
diamond drilling
-
heat nodes
-
sewerage
-
eco-friendly ground heating
-
ground source heat pump installation
-
renewable heating
-
water pipeline installation
-
sewer construction and maintenance
-
environmentally friendly water solutions
-
thermal equipment installation
-
custom machine solutions
-
construction services
- Credit score:
- Reliable
- Reputation score:
- 3,990
- Employees:
- 11
- Forecast turnover (2026):
- 2,455,854 €
Construction of sewer lines
excavation and earthworks services, Construction, construction of water supply, construction of external sewers, water supply connection works, sewerage connection work, drafting of vk projects, coordination of geodetic works, water supply and sewerage services, compression of soil
-
construction of water supply
-
water supply connection works
-
water supply and sewerage services
-
water supply and sewerage connection works
-
construction of external paths for water supply
-
sanitation
-
excavation and earthworks services
-
construction
-
construction of external sewers
-
sewerage connection work
-
drafting of vk projects
-
coordination of geodetic works
-
compression of soil
-
preparation and coordination of vk projects
-
geodetic works for design
-
construction of pipelines
-
infrastructure construction
-
installation of external lanes
-
sewerage
-
acquisition of connection permits
-
performance of connection work
-
integration of infrastructure
-
installation of connection points
-
vk projects
-
project planning
-
technical documentation
-
coordination and licensing
-
installation of external trails
-
external races
-
preparation of projects
- 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
-
water systems
-
water floor heating
-
washing of heating systems
-
sewerage
-
sanitation
-
water and sewerage
-
installation of water floor heating
-
construction and real estate
-
heating solutions
-
plumbing and fittings
-
general and home services
-
construction
-
construction
-
plumbing services
-
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
-
installation
-
floor
-
renovation
-
sewer system
-
repair
-
heating system
- 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
-
construction of public water supply
-
water supply
-
sewer systems
-
in-plot water supply
-
installation of water and waste water tanks
-
sanitation
-
construction
-
construction
-
sewer works
-
pipes
-
seated fields
-
reservoirs
-
pumps
-
oil and fat trappers
-
construction of drainage pipelines
-
rainwater pipeline
-
establishment of seepage fields
-
construction of pipe pipe
-
establishment of fire water storage facilities
-
construction of pumping stations
-
construction of jars
-
construction of sewerage system
-
construction firm
-
handling
-
installation
-
renovation
-
building and renovation
-
sanitation services
-
sewer system construction
-
construction of storm water pipeline
- Credit score:
- Risky
- Reputation score:
- 3,655
- Employees:
- 13
- Forecast turnover (2026):
- 1,123,190 €
Building Quality, Creating Homes!
We provide comprehensive construction and repair services, specializing in general contracting and pipework for private homes.
-
water supply solutions
-
installation of water and sewerage lines
-
installation of electrical systems
-
installation of sewerage systems
-
general construction and repair works
-
general building contractor
-
high quality construction services
-
specialists in residential pipework
-
reliable home repair contractors
-
durable construction solutions
-
expert in pipe work installation
-
home renovation services
-
professional building contractors
-
bespoke repair
-
general construction
-
custom home building
-
project management
-
housing development projects
-
preventive care
-
home renovation
-
restoration works
-
emergency repair services
-
residential plumbing
-
heating system piping
-
plumbing system installation
-
establishment of foundations
-
construction of walls and roof
-
construction of substructures
-
improving structures
-
updating finishes
- Credit score:
- Reliable
- Reputation score:
- 3,520
- Employees:
- 7
- Forecast turnover (2026):
- 606,967 €
Terviklikud ehituslahendused sinu jaoks!
Meie firma pakub kõiki ehituslahendusi, alates fassaaditöödest kuni terrassi ehitamiseni. Meie eesmärk on pakkuda parimat teenust ja kvaliteetseid tulemusi, mis kestavad pikka aega.
-
water supply
-
construction of rainwater systems
-
water supply
-
views systems
-
construction and real estate
-
construction
-
construction
-
rental workforce mediation
-
custom home construction
-
chimney work
-
wooden outbuildings
-
production buildings
-
industrial
-
facade work
-
general construction
-
roofing
-
indoor building work
-
terrace building
-
stone furniture
-
plastering
-
painting
-
glassing
-
interior finishing
-
construction of structures
-
sewerage
-
roof stain
-
roof windows
-
roof frames
-
wallpaper
-
floors
- Credit score:
- Reliable
- Reputation score:
- 3,500
- Employees:
- 14
- Forecast turnover (2026):
- 1,279,636 €
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
-
water and sanitation solutions
-
water and sewerage works
-
analysis of water samples
-
water systems installation
-
sewerage
-
sanitation
-
construction and real estate
-
construction
-
construction
-
hydrogeological works
-
drilling wells
-
ground heating wells
-
cleaning wells
-
registration and liquidation of wells
-
drafting
-
formalisation of documentation
-
drilling
-
design
-
measurements of performance
-
sewer line installation
-
installation of cleaners and containers
-
establishment of infiltration pitches
-
drilling wells
-
installation
-
ground heating
-
drilling well
-
depth
-
construction of wells
-
frequently asked questions
-
documentation
- Credit score:
- Reliable
- Reputation score:
- 3,420
- Employees:
- 5
- Forecast turnover (2026):
- 241,975 €
Other non-specialised retail sale
heating solutions, Construction of gas installation, gas works, Pressure equipment works, Gas construction, Gas boilers, Gas heating systems, Gas equipment, Sales of gas equipment, Construction of gas pipelines
-
gas heating systems
-
repair of heating systems
-
heat supply
-
gas water heaters
-
installation of air conditioning systems
-
heating solutions
-
construction of gas installation
-
gas works
-
pressure equipment works
-
gas construction
-
gas boilers
-
gas equipment
-
sales of gas equipment
-
construction of gas pipelines
-
maintenance of gas pipelines
-
gas pipelines
-
construction of gas trails
-
installation of boiler equipment
-
central heating boilers
-
heat automation
-
gas
-
floor heating
-
regulators
-
chimneys
-
collectors
-
floor heating automation
-
construction and maintenance of boilers
-
installation and repair of gas equipment
-
replacement of gas risers and taps
-
gas welding works
- Credit score:
- Reliable
- Reputation score:
- 3,340
- Employees:
- 6
- Forecast turnover (2026):
- 1,022,216 €
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 of heating systems
-
water supply pipelines
-
gas systems
-
maintenance of energy systems
-
water pipeline installation
-
equipment
-
heating systems construction
-
construction and real estate
-
building and finishing materials
-
energy
-
energy and mineral resources
-
construction and maintenance of energy systems
-
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
-
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
- Credit score:
- Reliable
- Reputation score:
- 3,300
- Employees:
- 3
- Forecast turnover (2026):
- 236,705 €
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
-
communication systems
-
electrical and surveillance systems
-
water supply and sewerage
-
drainage systems
-
water supply
-
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
-
free advice
-
surveying and surveys
-
preparation of building documentation
-
general construction work of a private house
-
heating and ventilation
-
design
-
sewerage
-
installation
-
engineer
-
tiling services
-
question
-
road and square construction
-
research
-
constructions
-
the sauna house
- Credit score:
- Reliable
- Reputation score:
- 3,210
- Employees:
- 6
- Forecast turnover (2026):
- 514,838 €
Land improvement works
Land improvement, digging and cleaning of canals, road and bridge construction, Overhaul and renovation works, ditch digging services, Construction work of dams, canals, irrigation canals and aqueducts, Construction, Maintenance of public roads, Construction, digging and cleaning ponds
-
construction of sewerage and water mains
-
construction and restoration of drainage systems
-
sanitation
-
waterway construction
-
construction and real estate
-
trade and services
-
road and bridge construction
-
construction
-
maintenance of public roads
-
construction
-
digging and cleaning ponds
-
purification of lakes
-
digging and cleaning of canals
-
planning work with bulldozer
-
digging with long-arrow excavator
-
planning and construction of different sites and squares
-
dredging of ports and channels
-
transfer of soil in difficult conditions
-
establishment of roads and car parks
-
repair of drainage lines
-
construction of troupes
-
construction and cleaning of drainage ditches
-
land improvement consultation
-
cutting brush with brush giljotine
-
collection of brush
-
rooting of stumps
-
lawn mowing
-
trimming
-
landscaping works
-
demolition services