Boiler Repair Costs – How Much to Fix Your Boiler in 2025

Got a noisy, leaky or cold boiler? Before you call a plumber, it helps to know what’s likely to hit your wallet. In the UK, a typical repair runs between £80 and £250, but the exact number depends on a few key things.

What Drives Boiler Repair Prices?

First up, the type of boiler matters. A modern combi boiler usually costs less to fix than an older oil‑filled model because the parts are more common. Second, labour rates vary by region – a technician in Weymouth might charge £60‑£90 per hour, while big cities can be higher.

The specific problem is the biggest factor. Replacing a broken pump or thermostat can be as cheap as £50 for parts plus labour, whereas a cracked heat exchanger can push the bill past £500. Emergency call‑outs also add a premium; most companies charge an extra £30‑£50 for out‑of‑hours work.

Don’t forget the occasional hidden cost. If the technician needs to shut off water or gas for safety, you might pay a small service fee. Some firms include a diagnostic charge of £30‑£40, which is usually deducted if you go ahead with the repair.

Tips to Keep Your Boiler Repair Bill Low

Regular maintenance is the cheapest insurance. A yearly service typically costs £70‑£120 and can spot worn parts before they break. When you spot a problem early – a strange noise or a drop in pressure – call a pro right away. Small fixes are cheaper than letting the issue grow.

Shop around for quotes. Many local repair shops in Weymouth offer free estimates, and comparing two or three can save you up to 20%. Ask if they have a parts warranty; a good warranty means you won’t pay again if the same part fails within a year.

If you’re comfortable with basic tasks, you can do a quick pressure check or bleed radiators yourself. Those simple steps often clear up minor hiccups and avoid a call‑out.

Finally, consider a fixed‑price guarantee. Some companies will quote a total price after the diagnostic, so you won’t be surprised by extra labour after the job starts.

Bottom line: most boiler repairs stay under £250, but costly parts or emergency calls can push you higher. Keep up with yearly servicing, catch issues early and compare quotes to keep your heating running without breaking the bank.