Compare installers: contact details, locations and Tukes register entries in one place.
We list 28 companies in Helsinki. Of those, 17 are in the Tukes register (checked 11 September 2026). The brands that come up most often are Mitsubishi Electric, Nibe and Bosch.
Below is each company’s own page, with its contact details and the area it serves, and its offices on the map.
28 results
✅ Tukes-certified Finnish family business founded in 2007 (originally Uudenmaan Kotisähkö Oy). The company specializes in the sale, installation, and service of air source heat pumps in the capital region and its surrounding municipalities. The service selection also includes cooling and air-to-water solutions.
The company states it is in the Tukes register. We have not confirmed this against the register.
Acosta Helsinki Oy (formerly Lämpödiileri) is a comprehensive building technology provider specializing in heating and cooling systems as well as HVAC technology. Services include ground source heat pumps, underfloor heating, renovations, and maintenance works. The company serves consumers, housing companies, and businesses in the Helsinki metropolitan area.
In the Tukes register: operating right y3, valid until 12.3.2029. Checked 11.9.2026.
Tukes-certified expert in ground source heat and boreholes. Over 20 years of experience in designing and installing heat pumps, boreholes, and underfloor heating. We offer Nibe heat pumps, maintenance, and renovation services in the Kirkkonummi area. Services also include energy calculations and borehole cleaning.
In the Tukes register: operating right e3, valid until 12.3.2029. Checked 11.9.2026.
Remppoja (Edean Oy) provides high-quality construction and renovation services in Porvoo and the Uusimaa region. The company specializes in apartment renovations, kitchens, bathrooms, saunas, and new builds, offering comprehensive turnkey solutions. Remppoja has a special focus on renovating old houses, respecting traditions while utilizing modern and durable solutions.
Ekolämpönen Oy is a company operating in Southern Finland, specializing in ground source heat and exhaust air heat recovery systems for large properties and housing companies. Part of the Cervi Group, the company offers turnkey solutions for improving energy efficiency, including design, installation, and maintenance.
In the Tukes register: operating right A. Checked 11.9.2026.
A Finnish pioneer in building technology services. ESP is a group focused on building technology contracting, maintenance, and upkeep. Services include turnkey contracting, HVAC & electrical contracting, maintenance services, energy management, and building automation. Operating widely in Southern and Central Finland.
In the Tukes register: operating right A (sj). Checked 11.9.2026.
Serves all of Finland
Suomen Geoenergia Oy is a company established in 1985, specializing in heat and water well drilling. Their services include geothermal well drilling, energy field construction, and turnkey geothermal installations. Serving private individuals, companies, and housing associations throughout Finland, they have extensive experience in demanding drilling projects.
Hesatek (Maxei Finland Oy) specializes in the sale, installation, and maintenance of air heat pumps and EV charging stations in the Uusimaa region. As an authorized dealer, they represent top brands including Mitsubishi, Toshiba, Daikin, and Gree. Their services also cover comprehensive electrical work, lighting design, and fault repair services, backed by over 25 years of experience.
The company states it is in the Tukes register. We have not confirmed this against the register.
✅ Tukes-certified Combi Mont (Ab Åker-Lind Oy) sells, installs, and services high-quality air heat pumps, air-to-water heat pumps, and ground source heat pumps. We represent Daikin heat pumps. We serve the area of Helsinki, Porvoo, Lahti, Liljendal, Loviisa, and Kotka. Reliable service with professional expertise.
The company states it is in the Tukes register. We have not confirmed this against the register.
✅ Tukes-certified (asbestos). Julkisivutyöt Pentti Mähönen Oy is a family-owned company with over 60 years of experience, specializing in facade renovations, balcony repairs, plastering, and roofing. We serve housing companies in Helsinki and the capital region with strong expertise. The company holds Rala qualifications, an AAA credit rating, and operates its own modern aerial work platforms.
A family business operating since 1972, Lämpö-Ölsä (formerly Öljy- ja Sähkölämpö) offers modern heating solutions in the Helsinki metropolitan area. Services include the installation, maintenance, and repair of oil burners, as well as air, water, and ground source heat pumps, and boiler room renovations.
Serves all of Finland
Rala-qualified Lämpöhuolto Group Oy is a nationwide company specializing in district heating contracting, maintenance, and the basic adjustment of heating networks. Services also include the installation and maintenance of air, air-to-water, and geothermal heat pumps for both small houses and large properties.
In the Tukes register: operating right A. Checked 11.9.2026.
Lämpökarhu Oy is a company specializing in heating solutions, offering ground source heat pumps, air-to-water heat pumps, and district heating equipment with installation and maintenance services. The company primarily serves housing companies and properties in the Uusimaa and Kanta-Häme regions, focusing on energy efficiency and reliability.
In the Tukes register: operating right A. Checked 11.9.2026.
Lännen Maalämpö Oy sells, installs, and services geothermal and air-to-water heat pump systems on a turnkey basis. The company represents high-quality Thermia and Bosch brands and operates in the regions of South Ostrobothnia, Pirkanmaa, Central Finland, and Southwest Finland.
In the Tukes register: operating right A. Checked 11.9.2026.
Maalampoa.fi is an online store and installation service specializing in ecological and economical heating systems. The company provides ground source heat pumps, air-to-water heat pumps, and underfloor heating on a turnkey basis, from design to installation. Services also include other HVAC work in the Uusimaa region.
The company states it is in the Tukes register. We have not confirmed this against the register.
✅ Tukes-certified service company for geothermal heat pumps, air-to-water heat pumps, and exhaust air heat recovery systems. Services include annual maintenance, remote monitoring, repairs, and installations for both private homes and larger properties. Also offers installation of spot price electricity control for heat pumps through a partner.
In the Tukes register: operating right L. Checked 11.9.2026.
✅ Tukes-certified company specializing in the installation and maintenance of air source heat pumps. NuiKos Oy offers expert services in the Helsinki, Vantaa, Espoo, and Uusimaa regions. The service covers everything from surveying to installation and commissioning on a turnkey basis.
In the Tukes register: operating right L. Checked 11.9.2026.
SP-Kylmähuolto Oy is a refrigeration and heat pump expert company founded in 2016, operating in the Uusimaa region. The company maintains, repairs, sells, and installs cooling equipment, air heat pumps, and ground source heat pumps. SP-Kylmähuolto is a certified expert company serving both households and businesses with 24h on-call service.
In the Tukes register: operating right L. Checked 11.9.2026.
Spinea Oy / Spinea Cool is a family-owned company founded in 1992, specializing in cooling contracting and air conditioning cooling. The company provides heat pump solutions (air, air-water, and ground source heat pumps) and cooling devices for businesses, housing associations, and private individuals. Operating in the Uusimaa region, they have over 25 years of experience.
The company states it is in the Tukes register. We have not confirmed this against the register.
Serves all of Finland
Suomen Ilmalämpöpalvelu Oy is a Finnish heat pump sector operator offering energy-efficient cooling and heating solutions for properties. The company sells, installs, and maintains air and ground source heat pumps in the Uusimaa region on a turnkey basis. Services also include sizing visits and equipment maintenance.
The company states it is in the Tukes register. We have not confirmed this against the register.
Uudenmaan Lämpömestarit Oy is an HVAC company established in 2016, operating in the Uusimaa region. Their services include HVAC contracting and maintenance, KVV supervision, and the installation and service of heat pumps (air, ground, and air-to-water). The company is also an authorized service provider for Bosch heat pumps and represents Nibe and Vaillant brands.
In the Tukes register: operating right e3, valid until 12.3.2029. Checked 11.9.2026.
✅ Tukes-certified Wirmax is a modern building technology group offering comprehensive HVAC, electrical, automation, and security solutions. We serve households, companies, and housing associations with maintenance, installation, and contracting needs. The group employs over 100 professionals and operates in Uusimaa, Central Finland, and Northern Finland.
In the Tukes register: operating right A (sj). Checked 11.9.2026.
RH Kylmätekniikka is a refrigeration specialist based in Espoo, focusing on heat pumps. We professionally install air source, air-to-water, and geothermal heat pumps across the Uusimaa region.
In the Tukes register: operating right A. Checked 11.9.2026.
Espoon Vesi ja Lämpö Oy is an HVAC professional serving the Helsinki metropolitan area and Kirkkonummi. We offer comprehensive HVAC services from design to implementation, including plumbing, district heating, air source heat pumps, drain opening, and 24h emergency service. The company has extensive experience and all necessary licenses.
In the Tukes register: operating right e3, valid until 12.3.2029. Checked 11.9.2026.
Tukes-certified company providing energy-efficient solutions in the Helsinki area. Specializes in the sales, installation, and maintenance of air heat pumps, air-to-water heat pumps, geothermal systems, and solar panels. Services also include ventilation cleaning and chimney sweeping. Operates under the marketing name Energiansäästäjät.
The company states it is in the Tukes register. We have not confirmed this against the register.
Serves all of Finland
✅ Tukes-certified company specializing in energy-efficient heating and cooling solutions. LämpöYkkönen supplies and installs heat pumps and solar panels for homes and larger properties throughout Finland, making the transition to renewable energy easy on a turnkey basis.
In the Tukes register: operating right A. Checked 11.9.2026.
Suomen Sähkö- ja Kiinteistötekniikka Oy performs electrical and refrigeration installations, maintenance, and repairs comprehensively in the Uusimaa region. We also offer electrical services, air conditioning and heating, renewable energy solutions, as well as telecommunications and automation services.
In the Tukes register: operating right A (sj). Checked 11.9.2026.
Lämpöpalvelu HR Oy is a company operating in the Uusimaa region, specializing in the sale, installation, and maintenance of heat pumps. It offers energy-efficient solutions for heating and cooling on a turnkey basis. Services also include various HVAC tasks, such as domestic water and radiator network renovations.
In the Tukes register: operating right A. Checked 11.9.2026.
Enter your postal code and the service. Before you send anything you will see which companies your request goes to – at most three.
Published prices across Finland run €13,000–€33,225. The spread is method, not noise: the sources are costing different jobs. €13,000–€20,000 turnkey — the site’s own typical range (urakkamaailma.fi, 14 August 2026). €23,000–€26,000 replacing oil heating, demolition included — 2 costed worked examples (Motiva, 2024). €27,075–€33,225 jobs actually paid for — median of 2 verified jobs (urakkadiili.fi, 13 May 2025). Usually quoted separately: the municipal permit fee, demolishing the old heating system, work on the electrical panel, a buffer cylinder, reinstating the garden after trenching and rebuilding the heat distribution network.
Sources:urakkamaailma.fi, 14 August 2026; Motiva, 2024; urakkadiili.fi, 13 May 2025
Household tax credit: 35% of the labour share of a company invoice, up to €1,600 per person per year, with a €150 own share (Verohallinto, 10 February 2026). The government has proposed raising this to 40% and €2,100 for 2026–2027, retroactively from 1 January 2026 (HE 113/2026 vp, Eduskunta, 11 June 2026). Parliament has not passed the bill, and the tax administration still writes about it in the conditional (Verohallinto, 16 June 2026).
Sources:Verohallinto, 10 February 2026; Eduskunta, 11 June 2026; Verohallinto, 16 June 2026
The grant is closed. Applications ended on 25 May 2026 at 16.15, the appropriation was spent in full and over 300 applicants received nothing. It used to pay €4,000 / €2,500 depending on the replacement system (Elinvoimakeskus, 1 September 2026). Giving up oil heating altogether carries an elevated credit of 60% of the labour share, up to €3,500 per person, in force until 31 December 2027 (Verohallinto, 10 February 2026).
Sources:Elinvoimakeskus, 1 September 2026; Verohallinto, 10 February 2026
It is set by the distribution temperature, not by the brand: 3.4 on 30 °C underfloor heating, 2.5 on a 60 °C radiator circuit, and 2.3 for domestic hot water (Ympäristöministeriö, 20 December 2017). That is the running cost difference the emitters make before any brand comparison. The pump is sized to part of the peak load, so 1–5% of the annual energy still comes from a back-up resistor at a coefficient of one (Motiva, 16 February 2026).
Sources:Ympäristöministeriö, 20 December 2017; Motiva, 16 February 2026
We list 28 companies in Helsinki, and 17 of them are in the Tukes register (checked 11 September 2026). The map above shows which of them work nearest to you; open a company’s own page for its contact details and service area.