Compare installers: contact details, locations and Tukes register entries in one place.
We list 11 companies in Lappeenranta. Of those, 8 are in the Tukes register (checked 11 September 2026). The brands that come up most often are ABB and Toshiba.
Below is each company’s own page, with its contact details and the area it serves, and its offices on the map.
11 results
✅ Tukes-certified cooling and electrical contracting company that sells and installs heat pumps, panels, and heating equipment in the Imatra and Lappeenranta region. The company specializes in renewable energy solutions, offering turnkey installation, maintenance, and repair services.
In the Tukes register: operating right L. Checked 11.9.2026.
✅ Certified solar electricity provider and reliable Finnish family business. Sons of Solar Kaakkois-Suomi offers high-quality solar panel solutions, batteries, and charging stations on a turnkey basis. We use our own qualified electricians and the best components in the industry. Serving Lappeenranta and the Southeast Finland region with professional expertise.
HKS Sähkö- ja Kiinteistöpalvelut Oy is a specialized electrical and property maintenance company based in Joutseno, Finland. Services include electrical contracting, design, heat pumps, solar panels, and EV charging stations. The company also offers property maintenance and is a member of the Elfin chain, serving the Lappeenranta and Imatra regions.
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.
✅ Tukes-certified electrical multidisciplinary expert in the South Karelia region, specializing in renewable energy solutions. Services include electrical and telecommunications installations, solar power systems, heat pumps, and fire alarm installations for individuals, companies, and housing associations.
In the Tukes register: operating right A (sj). Checked 11.9.2026.
Sähköpalvelu Tilli & Hakulinen Oy (SPTH) is an electrical contractor established in 1985, based in Lappeenranta. They provide comprehensive electrical services, 24/7 emergency repairs, solar power systems, EV charging stations, and thermal imaging in South Karelia. Serving residential, commercial, and agricultural clients, SPTH is a certified STUL member known for professional quality.
In the Tukes register: operating right A. Checked 11.9.2026.
Sähkötoimisto Lehto Ky is a Tukes-certified electrical contractor based in Lappeenranta, established in 1995. We provide comprehensive electrical installations, solar power systems, air source heat pumps, EV charging stations, as well as IT and intercom systems. We serve households, housing associations, and businesses throughout the South Karelia region with professional expertise.
In the Tukes register: operating right A (sj). Checked 11.9.2026.
Redin Teho Group is an electrical contractor operating in the Lappeenranta and Kotka regions, serving the public sector, construction companies, housing associations, and industry. The group consists of Redin Oy and Sähköliike Teho Oy, providing strong electrical expertise, contracting, and maintenance services.
The company states it is in the Tukes register. We have not confirmed this against the register.
Sähkö-Systema Oy is a full-service electrical installation company founded in 2011 and based in Lappeenranta, Finland. They provide comprehensive electrical services, including contracting, planning, and maintenance for residential and commercial clients. Their offerings also include Bosch, Fujitsu, and Panasonic air source heat pumps, solar panels, and EV charging stations, serving the South Karelia region.
In the Tukes register: operating right A. Checked 11.9.2026.
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.
✅ Tukes-certified JA Sähkö Systems (est. 2019) specializes in electrical planning and installations in Lappeenranta and South Karelia. Services range from basic electrical work to solar panels, including automation systems (Siemens/Shelly) and statutory commissioning measurements. The company serves both private individuals and corporate clients.
In the Tukes register: operating right A. Checked 11.9.2026.
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Published prices across Finland run €1,500–€4,500. €1,500–€4,500 installed — a vendor’s stated range (fiksukuluttaja.fi, 2026). Some sources price the labour on its own, which is a different product under the same word: €60–€150 converting one existing block heater post — a marketplace’s stated range (urakkamaailma.fi, 28 August 2026). Usually quoted separately: upgrading the electrical panel, an electrical network survey and load management.
Sources:fiksukuluttaja.fi, 2026; urakkamaailma.fi, 28 August 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
We list 11 companies in Lappeenranta, and 8 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.