How much does it cost to install a new gas boiler in a 1950s townhouse in Groningen in 2026?

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Our 1950s townhouse in Groningen needs a new gas boiler—the current one is 22 years old and failing. We're homeowners, not renting. Should we expect to pay €3,000–€5,000 or more? What actually drives the price difference between a basic replacement and a 'better' boiler?

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Gas boiler installation in a 1950s Dutch townhouse typically costs €2,800–€4,500 for a standard condensing combi boiler (including labour, materials, and basic flue adjustment). Expect €4,200–€5,800 if you need new pipework, a larger boiler, or upgraded controls. Cost drivers: boiler efficiency class (A-rated vs lower), installation complexity (tight spaces cost more), whether flue/chimney needs adapting, and local labour rates. By law (NEN 1010 + Arbeidsinspectie rules), gas work must be done by a certified technician—never DIY. Get 2–3 quotes from verified local installers on AstraNL to compare warranty, efficiency ratings, and total cost before deciding.

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