Boiler Lifespan Calculator
Wondering if it’s time to replace your boiler? Estimate your boiler’s remaining lifespan based on its age, type, and maintenance history.
12 yrs
3 yrs left
Estimated remaining lifespan
80% of expected 15-year life used
Approaching end of life — start planning
You’re in the replacement window. Now is a smart time to compare high-efficiency models and lock in rebates before a failure forces a rushed decision.
Compare Replacement OptionsFrequently asked questions
How long do boilers last?+
Most modern condensing and combi boilers last 12–15 years; standard gas boilers 15–20 years; and cast-iron boilers can last 25–30 years with good maintenance.
When should I replace my boiler?+
Consider replacement when your boiler is near end of life, needs frequent repairs, has dropped in efficiency, or no longer keeps your home comfortable.
Ready for the next step?
Get matched with approved local installers and real quotes.