District heating construction Engineering, construction, installation, maintenance and repairs
Warmnet Oy specializes in district heating network works
Warmnet Oy carries out reliable and expert district heating work, either as full projects or as individual parts of a project. Our convenient all-in-one service provides the complete package, from planning (including structural engineering) and materials to construction, installation, maintenance, and repair work.
A sensible complete package is possible thanks to our unique network of partners. As partial contracts, we can handle, for example, only the installation, maintenance, or repair.
Reliably, with a long experience
We provide district heating with 50 years of experience. In addition to our solid expertise, our strength is our ability to react quickly. Our warehouse stocks the most common materials and supplies for district heating construction, allowing us to respond quickly in urgent situations. We also have our own traffic control equipment, site fences, traffic signs, and temporary access bridges.
Our customers
We undertake district heating network projects for energy companies, cities, municipalities, and industrial operators across Finland. We fulfil orders and carry out work under annual contracts.
Haelok compression fittings and tools
We use Haelok compression fittings and tools, which allow us to replace welding in all industrial and district heating applications. The Haelok joint is suitable for PED class 1, 2, 3, and 4 pipelines and has been approved by a notified body. Making joints using the Haelok method is fast and does not require any special training. This is significant when productivity is constantly being increased.
District heating operations
Construction and installation of district heating networks (including pressure branching)
Further insulation
- Welding of plastic protective casings for district heating elements (also on-site)
- Mechanical polyurethane insulation (e.g., insulation castings for district heating pipe joints)
HVAC contracting
District heating heat exchanger
Industrial piping works
Classified welding
Pressurised steel pipe fittings
HAELOK compression joints DN 15 – DN 100
Supplies of materials
Lifting and transportation, including long pipe elements (18 m crane truck)
Civil engineering works at district heating sites
Topographic surveys
Contact us and ask more about our services or request a quote
Warmnet Oy
Harjulantie 4
78850 Varkaus
Finland
Horjalviikintie 11
49420 Hamina
Finland