Compare installers: contact details, locations and Tukes register entries in one place.
We list 23 companies in Helsinki. Of those, 16 are in the Tukes register (checked 11 September 2026). The brands that come up most often are Mitsubishi Electric, Toshiba and Daikin.
Below is each company’s own page, with its contact details and the area it serves, and its offices on the map.
23 results
CR-Asennus is a Tukes-certified specialist in air source heat pumps, serving Espoo and the Uusimaa region. With over 20 years of experience, we sell, install, and service top market brands like Mitsubishi, Toshiba, and Panasonic. We offer high-quality, safe installations and maintenance for both households and businesses.
In the Tukes register: operating right L. Checked 11.9.2026.
✅ 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.
Serves all of Finland
Energio Finland Oy is a specialist in renewable energy solutions. The company sells and installs solar power systems, hybrid panels, bladeless wind power, and energy storage solutions. Energio serves consumers, businesses, housing associations, and farms across mainland Finland. Founded in 2021, the company operates with its own installation teams to ensure quality.
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.
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.
Etelä-Suomen Lämpöasennus Oy is an HVAC company based in Lohja, serving the entire Uusimaa region. The company specializes in the sale, installation, and maintenance of air source heat pumps and air-to-water heat pumps. Their selection includes well-known brands such as Mitsubishi Electric, Panasonic, Gree, and Daikin. Services also include solar panel installations.
In the Tukes register: operating right e3, valid until 12.3.2029. Checked 11.9.2026.
Tukes-certified refrigeration and electrical company based in Espoo. Specializes in the installation and maintenance of air source and air-to-water heat pumps. Services also include electrical works, solar power systems, and EV charging stations. Serving the Uusimaa region with professional skill and a 2-year installation warranty. Authorized Toshiba and Mitsubishi Electric dealer.
In the Tukes register: operating right A. Checked 11.9.2026.
Tukes-certified electrical company based in Nurmijärvi, serving the Helsinki metropolitan area. We provide versatile electrical contracting, installations, maintenance, repairs, and air source heat pump sales and installation. We focus on flexible service, high-quality workmanship, and professional staff.
In the Tukes register: operating right A. Checked 11.9.2026.
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. Electrical work and air heat pumps in Uusimaa. A youthful and service-oriented electrical and refrigeration company. Services include EV charging stations, electricity price control systems, and installation and maintenance of air heat pumps.
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.
Loistox Oy is a company specializing in solar power and the energy sector, which designs, sells, and installs solar power systems, air-to-water heat pumps, and air-source heat pumps on a turnkey basis. The company serves the entire Finnish territory, providing solutions for private homes, businesses, and farms.
In the Tukes register: operating right A (sj). 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.
Serves all of Finland
Rasol Oy is a Finnish renewable energy expert supplying and installing high-quality solar power systems, battery packs, and air source heat pumps across Finland. In 2023, Rasol Oy became part of the listed company Meriaura Group, which specializes in sustainable shipping and renewable energy.
In the Tukes register: operating right A. Checked 11.9.2026.
Valowatti is an expert company specializing in solar electricity, offering system design and installation services under one roof. The company delivers turnkey solar panel solutions for private homes, housing associations, businesses, and farms. Their service covers everything from initial mapping to installation and commissioning in the Southwest Finland and Satakunta regions.
In the Tukes register: operating right A (sj). 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.
✅ Tukes-certified electrical company founded in 1993. Offers electrical and energy solutions, such as electrical installations, air source heat pumps, solar panels, and electric car charging devices for homes and businesses in the Espoo, Helsinki, and Vantaa region, and by agreement throughout Southern Finland.
In the Tukes register: operating right A. 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.
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.
✅ Tukes-certified company that sells, installs, and services air source heat pumps in the Uusimaa region. Services also include electrical, HVAC, and solar power solutions. The company offers well-known, reliable equipment and professional, customer-oriented service for households and businesses.
The company states it is in the Tukes register. We have not confirmed this against the register.
Serves all of Finland
Kotisol Oy is a company specializing in the installation of solar power systems, serving private houses, companies, and farms throughout Finland. It offers comprehensive "turnkey" installation services through its partners and has completed over 5,000 energy renovations. The company's electricians have the appropriate contracting rights.
The company states it is in the Tukes register. We have not confirmed this against the register.
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.
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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
We list 23 companies in Helsinki, and 16 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.