Compare installers: contact details, locations and Tukes register entries in one place.
We list 4 companies in Hämeenlinna. Of those, 2 are in the Tukes register (checked 11 September 2026).
Below is each company’s own page, with its contact details and the area it serves, and its offices on the map.
4 results
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.
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.
✅ Tukes-certified and registered refrigeration company that sells, installs, and services Toshiba air source heat pumps. LämpöJari is a company from Lammi, operating in the Hämeenlinna region and providing professional service. Also performs maintenance on all other brands.
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.
Enter your postal code and the service. Before you send anything you will see which companies your request goes to – at most three.
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 4 companies in Hämeenlinna, and 2 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.