About warmtepompkiezen.nl
warmtepompkiezen.nl helps Dutch homeowners find the right heat pump installer. We provide independent, factual information about certified installers — without commercial interests or paid placements.
Our mission
warmtepompkiezen.nl helps Dutch homeowners find the right heat pump installer. We provide independent, factual information about certified installers — without commercial interests or paid placements.
Fully independent
No installer pays for a better position in our directory. Rankings are determined solely by average Google rating and number of reviews.
How we work
- 1
Data collection: public business data from Google Maps is systematically gathered across all 12 Dutch provinces.
- 2
Verification: name, address and phone data are cross-checked against KvK (Chamber of Commerce) records and official company websites.
- 3
Classification: installers are categorised per municipality and province based on their registered business address.
- 4
Quality control: companies without verifiable details or fewer than one review are excluded.
- 5
Monthly refresh: ratings, review counts and opening hours are updated monthly.
Our data methodology
Our database contains 623 certified heat pump installers, compiled from public Google Maps data and supplemented with editorial verification. All ratings and reviews come from Google and are not influenced by us.
- 623 certified installers
- 33.688 verified Google reviews
- All 12 Dutch provinces covered
- 311 municipalities with installers
The editorial team
The editorial team of warmtepompkiezen.nl works collectively. We publish under the name "Redactie warmtepompkiezen.nl" (the warmtepompkiezen.nl editorial team) because our method — systematic data verification combined with public sources — is not suited to individual authorship. Every page is fact-checked before publication and reviewed monthly based on current subsidy amounts, pricing and regulation.
Editorial policy
Our knowledge base articles are written by the warmtepompkiezen.nl editorial team, consisting of energy experts and specialists in sustainable heating technology. All information is based on public sources: RVO.nl (ISDE subsidies), Netherlands Enterprise Agency, ISSO standards and supplier documentation.
Sources and references
Our information is based on public, authoritative Dutch sources. For specific subsidies, standards or technical details we refer you to the original source:
- RVO.nl — ISDE subsidy
Official information on the Sustainable Energy Investment Subsidy
- Milieu Centraal — Heat pump
Independent consumer information about heat pumps
- ISSO
Dutch knowledge institute for installation — standards and guidelines
- CBS — Housing data
Statistics Netherlands — data on the Dutch housing stock
- Netherlands Enterprise Agency (RVO)
Information for entrepreneurs and homeowners on sustainable heating
- Dutch Data Protection Authority
Supervisory authority for privacy and data protection
What we do not do
We are an information platform — not an installer and not a consultancy. We do not provide technical advice, do not issue quotes and offer no guarantees. The decision to install a heat pump and the choice of installer remain entirely yours. We recommend comparing multiple quotes and verifying references via RVO.nl and the Chamber of Commerce (KvK).
Disclaimer — informational only
warmtepompkiezen.nl is an information platform. We do not provide quotes, do not offer installation contracts and are not liable for decisions made based on the information on this website. Always request multiple quotes from certified installers.