Air Source Heat Pump – Turnkey Installation & Quote

Everything you need to know about air source heat pumps

The air source heat pump is Finland’s most popular supplementary heating solution — and for good reason. When correctly chosen and installed, it significantly reduces heating costs, improves living comfort, and provides cooling during summer heatwaves. On this page, we cover everything essential about choosing, installing, pricing, and maintaining an air source heat pump.

Why choose Kevyt Remppa for heat pump installation?

• **Experienced installers** — Over 20 years of renovation and installation experience in the Helsinki metropolitan area
• **Correct sizing** — We select a heat pump that matches the size and heating needs of your property
• **Transparent pricing** — The quote clearly itemises the unit, installation, and any additional work
• **Turnkey service** — We handle everything from the survey to commissioning and guidance
• **Aftercare** — We also help with heat pump maintenance should you need it later

How does an air source heat pump work?

An air source heat pump harnesses thermal energy from the outdoor air. The outdoor unit extracts heat from the outside air — even in freezing temperatures — and transfers it to the indoor unit, which blows warm air into the room. In summer, the process can be reversed: the heat pump acts as an air conditioner and efficiently cools the interior. A modern air source heat pump is quiet and energy-efficient. At best, one kilowatt of electricity produces 3–5 kilowatts of heat.

Air source heat pump price 2026 — what makes up the cost?

The total price of an air source heat pump consists of the unit cost and the installation work. A typical air source heat pump installation costs €1,800–€4,500 depending on the unit’s output, energy rating, and installation complexity.

• **Basic model (2.5–3.5 kW):** €1,800–€2,500 — suitable for smaller spaces and straightforward installations
• **Mid-range (4–6 kW):** €2,500–€3,500 — a typical detached-house heat pump
• **Premium or multi-split:** €3,500–€4,500 — multiple indoor units or A+++ energy class

Air source heat pump installation step by step

Kevyt Remppa delivers air source heat pump installation as a turnkey service. A typical project proceeds as follows:

• **Survey and sizing** — We review the property, your wishes, and the current heating system
• **Quote** — You receive a clear quote with the unit, installation, and extras itemised
• **Installation** — Our installers carry out the work on the agreed date, tidily and professionally
• **Commissioning** — We walk you through the heat pump’s operation and optimal settings
• **Aftercare** — We also assist with maintenance and further installations if needed

Air source heat pump savings — how much can you save?

An air source heat pump can reduce your heating bill by 20–40 per cent depending on the property, current heating method, and usage habits. In an electrically heated detached house, the savings can amount to several hundred euros per year. When used alongside oil heating, a heat pump significantly reduces oil consumption. The typical payback period is 3–6 years. In addition, a heat pump increases your home’s value and improves living comfort all year round. Read more: Air source heat pump electricity consumption and savings — how much does it really use?

Air source heat pump vs. air-to-water heat pump

An air source heat pump heats indoor air directly by blowing. An air-to-water heat pump (ASHP-W), on the other hand, heats a hydronic heating system such as radiators or underfloor heating. If you already have hydronic heating, an air-to-water heat pump may be the better option. If you want an affordable supplementary heating solution quickly, an air source heat pump is often the best choice. We help you compare the options based on your property.

Air source heat pump maintenance and upkeep

An air source heat pump requires regular maintenance to operate efficiently. The filters should be cleaned every few months, and a professional service is recommended at least once a year. Regular maintenance extends the unit’s lifespan, keeps the efficiency ratio high, and ensures clean indoor air. Read more about heat pump maintenance.

Want to know more about how to extend your heat pump’s lifespan? Read our comprehensive guide: Air source heat pump maintenance and lifespan — how to extend the life of your unit.

Heat pump household tax deduction

The installation work for an air source heat pump qualifies for the Finnish household tax deduction (kotitalousvähennys). In 2026, the deduction is 35% of the labour cost (work purchased from a company). The maximum deduction is €1,600 per person per year, with a €150 excess. For a couple, the combined maximum deduction is therefore €3,200. Kevyt Remppa itemises the labour and material costs in the quote so you can easily claim the tax deduction. Read more about the household tax deduction calculator.

We operate across the Helsinki metropolitan area

We install air source heat pumps in Helsinki, Espoo, Vantaa, Kauniainen, Kerava, Järvenpää, and Kirkkonummi. We are familiar with the region’s building stock — apartment buildings, terraced houses, and detached houses — and know how to select the right unit for every property.

Learn more about our service areas: Helsinki, Espoo, Vantaa.

Other heat pump options

If an air source heat pump is not suitable for your property, we can also help with other heat pump types. An air-to-water heat pump is suited to hydronic heating systems, while ground source heating offers the lowest running costs over the long term. For all options, correct sizing and professional installation are key.

Request a free heat pump assessment

Get in touch and tell us about your property. We carry out a free survey, recommend a suitable unit, and prepare a quote within 24 hours. No obligations — the service is completely free of charge.