Heat pumps
In winter 2023–2024, Wirmax Oy carried out an LTO (heat recovery) contract at a Helsinki housing company, aiming to reduce the property's purchased energy and the emissions caused by heating.
Wirmax as a company
Wirmax is a Finnish building services group. We bring electrical, HVAC, heat pump, automation, and fire and security technology services together under one name and one promise: building services, done better. For the customer, that means one partner for all of a property's building services – from contracting to maintenance and upkeep.
The Wirmax Group
Wirmax has grown from the expertise of several building services companies. Now the same expertise is available under one name: customers no longer need to look separately for an electrician, a plumber and an automation specialist. We serve businesses, housing companies, construction companies, the public sector and households.
We currently operate in the Helsinki metropolitan area, Central Finland and Oulu. Some of our services, especially automation, fire and security technology services, are available throughout Finland.
Group companies
Wirmax Oy provides maintenance, installation and upkeep services for properties' electrical, HVAC and automation systems, as well as electrical and building services contracting. Its services also include EV charging solutions, energy projects and technical expert services.
Wirmax Lämpöpumput Oy (formerly Putkimaatti Oy) provides design, installation and maintenance services for heat pumps and heat recovery systems. Its services include ground source heat pump, air-to-water heat pump (VILP), air source heat pump and heat recovery (LTO) solutions.
Wirmax Systems Oy (formerly Gane Oy) provides automation, fire and security technology solutions and the related contracting, maintenance, upkeep, remote monitoring and expert services.
At the core of our operations is digital operations management, which directs work efficiently and at the right time. The service delivered is always documented digitally.
Wirmax in numbers
- Founded2007
- Building services professionalsc. 100
- Service units40
- Maintenance visits a year (approx.)12 000
Building services, done better. That is our promise.
The seven Wirmax principles describe what you can expect from us on every job, from a small maintenance visit to a large contract. What we agree, we deliver, you know where things stand, and responsibility stays with us.
Ownership
Growth under Finnish ownership
Wirmax is owned by the Finnish private equity investor Saari Partners and Wirmax's key employees. Together with Saari Partners, we are building a nationwide full-service building services company that gives customers all services under one roof, efficiently and to a high standard.
Founded in 2007, Wirmax has expanded its expertise through acquisitions in electrical installation, heat pump technology, and automation and security technology.
Our story
The industry has no shortage of promises
In building services, customers have learned to double-check. To chase things up. To prepare for the possibility that what was agreed may not hold. Promises are not always backed up.
That is where Wirmax comes in. We don't promise the moon, but what we promise, we keep.
Our customers' experiences
References
- Housing company
- Housing company
ElectricalThe electrical systems of As Oy Satakallio's 788 apartments in Alppiharju, Helsinki, are being renewed in a major renovation. Building services group Wirmax Oy has been selected to deliver the project as a design and build (KVR) contract.
- Housing company
Ground source heat pumps · 2025As Oy Paasitie 15
Wirmax carried out the housing company's ground source heat pump contract in 2025.
- Housing company
Pipe renovation · 2025Asunto Oy Asemapäällikönkatu 2
Wirmax renewed the housing company's underground water pipes and sewers as a turnkey contract in 2025.
- Housing company
Ground source heat pumps, Solar panels · 2025Asunto Oy Klaavuntie 12
Wirmax carried out the housing company's ground source heat pump and solar panel contract as a turnkey contract in 2025.
- Housing company
Ground source heat pumps · 2025Asunto Oy Pajamäentie 14
Wirmax carried out the housing company's ground source heat pump contract as a turnkey contract in 2025.
- Housing company
Ground source heat pumps · 2025Asunto Oy Ryytimaantie 3
Wirmax carried out the housing company's ground source heat pump contract as a turnkey contract in 2025.
- Housing company
EV charging · 2024As Oy Kuusikoto
Wirmax built the charging infrastructure for the housing company and installed nine Garo Entity Pro chargers in 2024.
- Housing company
Ground source heat pumps, Electrical · 2024As Oy Säästötie
Wirmax carried out the housing company's ground source heat pump and electrical contract as a turnkey contract in 2024.
Sustainability
Sustainability in our everyday work
We recycle the construction waste generated by our work, optimise maintenance routes with lower-consumption vehicles and help property owners switch to more energy-efficient, lower-emission solutions. Equally important is a thriving workforce with the opportunity to develop their skills alongside their work.
Come and work with us
We are always looking for new professionals in electrical, HVAC, automation and security. We offer a safe working environment, the opportunity to train alongside your work and a team where the work has meaning.
Contact us
Tell us how we can help, and we will get back to you as soon as possible.