Become a customer

Fortum´s district heating is available for old and new property located near our district heating network. When you select district heating, you ensure peace of mind and join our crowd of satisfied customers.  

Click the link below to access our mapservice which shows whether district heating is available for your property. If the map does not yet have a district heating line at your property in the map, you should ask about network expansion plans from our Customer Service at 0200 19000 (mobile phone charge/local network charge) Monday to Friday, 9 a.m. – 5 p.m.  

 Benefits of district heating 

  • You can conveniently forget how your house is heated. There is enough warm water for all bathers and you need not order district heating separately.
  • The delivery reliability of district heating is almost 99.8%. In case of disruptions, we will always serve you by telephone and via the Internet.
  • Information concerning heat consumption - Fortum Valpas. We measure heat consumption using remotely readable meters. You can monitor your energy consumption in the online service. You will get an annual Forecast Report free of charge.  


Sign a district heating contract well in advance  


The heating contract of a new building is signed once the construction permit has been obtained and the construction schedule has been confirmed, or no later than upon the commencement of the building's foundation work. A district heating contract for an existing property is signed when the building owner or representative announces that they want to connect the building to the district heating network.

For those replacing other forms of heating with district heating, we will prepare a tender calculation based on the information we have received in the invitation to tender.   

Signing a district heating contract  


The following are required for signing the contract:  

  • Two copies of HPAC plans
  • Copy of the construction permit
  • Name and contact details of the property owner
  • Contact details of the connection bill's recipient
  • Preferred start time of heat delivery

If you like, you can send the information in PDF format to or in printed format to:   

Espoo, Kauniainen, Kirkkonummi  

Fortum Power and Heat Oy, Tarkastukset, PL 100 00048 FORTUM  


Fortum Power and Heat Oy, Tarkastukset, PL 369, 80101 JOENSUU 

Järvenpää and Tuusula 

Fortum Power and Heat Oy, Tarkastukset, PL 1023, 04431 JÄRVENPÄÄ  

We will send you the contract and its copy to be signed once we have received the necessary information. 


The connection contract of property switching to district heating from other forms of heating will be sent for signing once the tender has been approved.