WARMNET OY Professional in district heating construction since 1976

District heating contracting throughout Finland

Warmnet Oy is a company founded in 1976 that specializes in district heating construction and installations. The company is based in Varkaus, but we operate extensively throughout Finland.

We carry out district heating contracting as partial or complete projects for energy companies, cities, municipalities, and industrial operators. We conveniently provide the complete package: planning, construction, installation, maintenance, and, if needed, repairs.

Reliable district heating with 50 years of experience

We build district heating systems with expertise and high quality. We are trusted. This is also reflected in our longest customer relationships, which date back to the 1970s.

Warmnet Oy also offers other services

With our versatile in-house equipment and skilled personnel, we offer a wide range of services. We carry out civil engineering, transportation, and lifting work for district heating construction ourselves, and also offer services such as thermal imaging with a drone. When our equipment or expertise runs out, we can bring in a specialist from our extensive network of partners.

See our other services