Heat Pump Installation in Valais, Switzerland — Everything You Need to Know in 2026
Valais is one of Switzerland's sunniest cantons, with over 2,000 hours of sunshine per year in the Rhône valley. This exceptional climate makes air-to-water heat pumps particularly efficient — modern heat pumps achieve a COP (coefficient of performance) of 3 to 5 under Valais conditions, meaning you get 3 to 5 kWh of heat for every 1 kWh of electricity consumed.
The 2026 Valais Building Programme (Programme Bâtiments VS) offers substantial financial incentives for homeowners replacing their oil or gas boilers with heat pumps. By combining cantonal Valais subsidies with federal SuisseEnergie grants, it is possible to cover up to 60% of the total installation cost — saving CHF 10,000 to CHF 20,000 on a typical single-family home.
Our directory lists 99 PAC System-Module certified installers across the entire canton of Valais, covering French-speaking cities (Sion, Martigny, Monthey, Sierre, Conthey) and German-speaking cities in Upper Valais (Visp, Brig-Glis, Naters). All companies are verified and sorted by Google review score, with photo-verified listings ranked first.
To get the best price in Valais, we recommend contacting at least 3 installers. Prices vary depending on the heated floor area, the heat distribution system (underfloor heating, low-temperature radiators) and the building's insulation level. Use the form below to receive several competitive quotes from certified professionals in your area.
Find Heat Pump Installers by City in Valais
Sion — 15 installers
Martigny — 8 installers
Monthey — 6 installers
Sierre — 2 installers
Conthey — 3 installers
Visp — 8 installers
Brig-Glis — 4 installers
FAQ — Heat Pump Installers in Valais, Switzerland
The best heat pump installers in Valais are certified under the PAC System-Module Swiss certification. Top-rated companies include Francioli & Fils SA in Sion (4.9/5 – 68 reviews), Ewald Gattlen AG in Visp (4.7/5 – 67 reviews), and Brennwall AG in Brig (4.8/5 – 9 reviews). Our directory lists 99 certified installers across the entire canton of Valais.
In 2026, homeowners in Valais can benefit from the Gebäudeprogramm (Building Programme) which covers up to 60% of installation costs when replacing a fossil fuel heating system with a heat pump. Federal subsidies from SuisseEnergie can be combined with cantonal Valais subsidies. The exact amount depends on the heat pump type (air-to-water, geothermal) and heated floor area.
An air-to-water heat pump in Valais costs between CHF 15,000 and CHF 30,000 including installation, before subsidies. After the 2026 Building Programme subsidies, the net cost can drop to CHF 8,000–15,000. A geothermal heat pump costs between CHF 25,000 and CHF 50,000 gross.
PAC System-Module is the Swiss reference certification for heat pump installation professionals, issued by SUISSETEC (Swiss Association of Building Services). It guarantees specific training in heat pump systems and compliance with Swiss installation standards (SIA norms). All installers listed in this directory hold this certification.
Yes, replacing an oil or gas boiler with a heat pump is strongly encouraged in Valais and is one of the best-subsidised projects under the 2026 Building Programme. Certified installers across Valais — in Sion, Martigny, Monthey, Sierre, Visp and Brig-Glis — have extensive experience with this type of replacement in both older buildings and new constructions.
Sion has the most certified heat pump installers in Valais with 15 companies. Visp follows with 8 installers, Martigny with around 8, and Monthey with 6. Our directory also covers Sierre, Conthey, Brig-Glis and Naters, for a total of 99 certified professionals across the canton.
Installing an air-to-water heat pump in Valais typically takes 2 to 5 working days. For a geothermal heat pump with drilling, plan for 1 to 2 weeks. Administrative procedures (subsidy applications, drilling permits) take 4 to 8 weeks beforehand. Most certified installers in Valais manage these administrative steps for their clients.
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