Compare installers: contact details, locations and Tukes register entries in one place.
We list 21 companies in Espoo. Of those, 12 are in the Tukes register (checked 11 September 2026). The brands that come up most often are Mitsubishi Electric, Gree and Fronius.
Below is each company’s own page, with its contact details and the area it serves, and its offices on the map.
21 results
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.
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.
Serves all of Finland
Natural Sähkö Oy is a company specializing in electrical contracting, serving households, businesses, and the public sector in Southern Finland. It offers a wide range of electrical services, including installations, renovations, and maintenance, with a special focus on solar power systems, electric car charging stations, and smart electricity solutions.
In the Tukes register: operating right A. Checked 11.9.2026.
Tom Allen Senera is Finland's largest supplier of geothermal heating and heat recovery systems. The company designs, installs, and maintains energy-efficient heating solutions, such as ground source and air-to-water heat pumps, for properties of all sizes. Part of the Assemblin Caverion Group.
In the Tukes register: operating right L. Checked 11.9.2026.
PurePanel is a professional in preventive maintenance for solar energy systems. Services include solar panel cleaning, maintenance agreements, snow removal, and thermal imaging. The company helps customers, regardless of power plant size, to keep their systems safe, clean, and energy-efficient.
✅ Tukes-certified company specializing in the installation of solar panels, charging stations, and air source heat pumps. The company holds an S2 qualification for electrical work up to 1000V. Services also include the connection of battery and off-grid systems, as well as complete project planning and implementation from start to finish.
In the Tukes register: operating right A. Checked 11.9.2026.
Lvienergia Oy specializes in solar power systems and plumbing renovations. The company offers HVAC installations, such as pipe renovations and hot water heater replacements. Operations are based on honesty, quality, and responsibility, with services offered in the regions of Central Finland, Uusimaa, Savo, and Kymenlaakso.
In the Tukes register: operating right A. 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.
UV-Putki Oy is an HVAC and electrical company operating in Kirkkonummi and the Uusimaa region. They offer comprehensive plumbing, electrical, and maintenance services, including water, sewer, and heating system installations. Serving private customers, housing associations, and construction companies, they provide 24/7 on-call emergency service.
In the Tukes register: operating right A. Checked 11.9.2026.
Serves all of Finland
Volttikauppa Oy supplies grid-connected solar energy systems and products for private homes, business properties, and farms. Their services include turnkey packages and installation-ready solutions across Finland. The selection features solar panels, inverters, and mounting supplies with extensive warranties.
Serves all of Finland
Founded in 2010, GreenEnergy Finland Oy (GEF) is a Finnish pioneer in solar energy and energy management solutions. The company specializes in supplying solar power packages and has developed the proprietary GEF Vision energy management service, which enables smart control of energy production and consumption. GEF is part of the Flinkenberg Group.
Powertec Talotekniikka (Saariston asennuspalvelu) offers building technology solutions in Porvoo and Uusimaa. Services include sales, installation, and maintenance of air source heat pumps, ventilation duct cleaning, room-specific LTO ventilation units, and Ajax security systems. The company is a certified Bosch Heat Master and also installs off-grid solar panel systems.
The company states it is in the Tukes register. We have not confirmed this against the register.
✅ 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.
Serves all of Finland
Scanoffice Oy is a Finnish family-owned company established in 1984 and the largest importer and wholesaler of heat pumps in the Nordic countries. Their product range includes heat pumps, solar power systems, and electric vehicle charging stations. The company has been granted the Key Flag Symbol for its Finnish service.
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
SolarBiox Oy is a renewable energy expert providing modern heating and energy solutions. Their product range includes solar power systems, solar collectors, as well as pellet, wood chip, and log boilers. The company offers comprehensive services from design to installation and technical support, serving private customers, businesses, and farms.
In the Tukes register: operating right L. 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.
Serves all of Finland
✅ Tukes-certified 1KOMMA5° Suomi (formerly LP-Solar Oy / Solar Age Oy) is a leading provider of smart energy solutions. Services include solar panels, batteries, EV charging stations, and air source heat pumps. The company is part of the European 1KOMMA5° Group, aiming for a carbon-neutral future and offering the intelligent Heartbeat energy management system.
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.
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Published prices across Finland run 1,000–1,800 €/kWp. 1,000–1,400 €/kWp turnkey — a vendor’s stated range (1komma5.com, 2026). 1,000–1,800 €/kWp turnkey, by equipment quality — a vendor’s stated range (grivolt.fi, 2026). Usually quoted separately: scaffolding or a lift, fall protection and work on the electrical panel.
Sources:1komma5.com, 2026; grivolt.fi, 2026
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
Across Finland the range is 776–940 kWh/kWp, and it is not a clean north-south gradient: coastal Oulu out-yields inland Tampere and Jyväskylä, because cloud climatology matters more than latitude (PVGIS 5.3 (EC JRC), 3 September 2026). What decides the payback is not the yield but how much of it you use yourself: in a detached house that is 50–80% (Motiva, 30 December 2025).
Sources:PVGIS 5.3 (EC JRC), 3 September 2026; Motiva, 30 December 2025
We list 21 companies in Espoo, and 12 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.