£100–£400 for small repairs, £2,000–£4,500 for a new boiler, £4,000–£8,000 for a full heating system
Pricing varies by property type, service requirements, and location. Always compare at least 3 like-for-like quotes before appointing.
Typical timeline: Same day for small repairs, 1–2 days for a boiler swap, 1–2 weeks for a full heating system
Confirm Gas Safe registration for any gas work (boilers, hobs, fires)
Ask about warranty cover on both parts and labour
Check for experience with your boiler type or heating system
Look for verified customer reviews mentioning reliability and aftercare
Ensure they provide a Gas Safety Certificate after any gas work
Emergency callouts, evening/weekend visits, and urgent parts sourcing usually increase rates. If your job is non-urgent, planning ahead and combining smaller tasks into one visit often reduces total spend.
Explore local cost context before requesting quotes.
Modern boilers typically last 12–15 years. If your boiler is over 10 years old and efficiency has dropped below 85%, or you are facing frequent breakdowns, replacement is usually more cost-effective than ongoing repairs.
Gas Safe is the official UK register for gas engineers. Only Gas Safe registered engineers are legally allowed to work on gas appliances such as boilers, cookers, and fires. You can verify registration at GasSafeRegister.co.uk.
Combi boilers suit smaller homes with 1–2 bathrooms — no tank needed. System boilers suit larger homes with multiple bathrooms, using a hot water cylinder. Conventional boilers suit older properties with existing gravity-fed systems.
A powerflush typically costs £350–£600 depending on the number of radiators. It cleans sludge and debris from your central heating system, improving efficiency and extending the life of your boiler.
Compare nearby categories before choosing your final quote shortlist.