Boiler fixing price – How much does a repair really cost?

If your boiler is making strange noises or stops heating, you’re probably wondering how much fixing it will set you back. The truth is, prices vary, but you can get a solid idea before you call a technician.

What a typical boiler repair costs in the UK

On average, a basic repair (like a faulty thermostat or a leaky valve) costs between £80 and £150 for labour, plus any parts. More complex jobs – for example, a heat‑exchanger replacement – can push the total to £300‑£600.

Many companies charge a call‑out fee of £40‑£60 that’s usually included in the final quote if they do the work. If they can’t fix the problem on the spot, expect a separate charge for a second visit.

Factors that change the price

Age of the boiler: Older models often need harder‑to‑find parts, which drives up the cost. A brand‑new condensing boiler with a warranty might be cheaper to fix because parts are readily available.

Type of boiler: Combi, system, and regular boilers each have different components. A combi boiler repair can be more expensive if the issue is with the water‑heating section.

Severity of the fault: A simple pressure‑reset is cheap, but a cracked heat‑exchanger requires extensive work and higher labour rates.

Location and emergency timing: If you need a repair outside normal working hours or on a weekend, expect a 20‑30% surcharge.

Company reputation: Established, fully‑insured firms may charge more, but they often include a guarantee on parts and labour, which can save you money if something goes wrong again.

To avoid surprise bills, always ask for a written estimate before work starts. A reputable service will break down labour, parts, and any extra fees.

When you get quotes, compare not just the total price but also what’s included – for example, do they cover VAT, disposal of old parts, and a warranty?

Another tip is to keep your boiler serviced annually. Regular maintenance costs around £80‑£120 and can prevent big repairs later, keeping the fixing price low.

In short, a basic fix will likely sit under £150, while major overhauls can reach £600 or more. Knowing the factors that influence the price helps you budget and choose the right pro.

Ready to sort your boiler? Call a few local companies, get written quotes, and ask about any discounts for first‑time customers. A clear price up front makes the whole process less stressful.