Boiler Repair in Cambridge
No heating or hot water? Book a Gas Safe engineer online and pick your arrival slot. We repair all makes of gas and LPG boilers. Your first visit finds the fault, and we fix it there and then if we have the part.
How would you like to book?
Two ways to get your boiler sorted. Choose whichever suits you.
Book a diagnostic visit
Just send an engineer
Pick a time online. Our engineer comes out, finds the fault, and fixes it there and then if we have the part. If not, you get a fixed-price quote for the repair.
- Quickest way to get someone out
- £120 inc VAT, including the first hour
- Choose your own 2-hour arrival slot
Send details for a first-time fix
Best chance of fixing it in one visit
Tell us what’s happening and send photos of the boiler, its data badge and any fault code. We’ll ask any questions, work out which parts are likely to be needed and aim to bring them with us.
- Fewer return visits
- Ideal if it isn’t an emergency
- We’ll call or email to book you in
What a repair visit costs
The visit pays for an hour of expert fault-finding. It isn’t a fixed price for the whole repair.
| Diagnostic visit, including the first hour on site | £120 |
| Parts needed for the repair | Quoted before we order or fit |
| Return visit to fit the parts | Fixed price, quoted with the parts |
Prices include VAT. You’ll always know the cost of the repair before we do it. Our engineers work Monday to Thursday 8am–5pm and Friday 8am–4pm.
What to expect from your repair
We’d rather be upfront than promise a fix we can’t guarantee.
1. We find the fault
Your first visit
An error code is a starting point, not an answer. Most codes point to one of several possible parts, so our engineer tests the boiler properly to find which one has actually failed.
- Full diagnosis by a Gas Safe engineer
- Your options explained in plain English
- Made safe if there’s a danger
2. We get the right part
If it’s not on the van
There are thousands of different boiler parts, so no engineer can carry them all. We carry the most common ones. Others are ordered against your boiler’s GC number and serial number, as even the same model can need different parts depending on when it was made.
- Common parts carried on the van
- Exact part ordered for your boiler
- Usually a day or two, sometimes longer
3. We fix it
Same visit or a return visit
If we have the part with us, we can often fix it on the first visit. If not, we send you a fixed-price quote for the part and the return visit to fit it, and book you in once you’ve approved it.
- No work without your approval
- Repair tested and checked
- Honest advice if it isn’t worth fixing
Not urgent? Send us the details first
Tell us what’s happening and send a few photos, including the boiler’s data badge. We’ll ask any questions, check which parts are likely to be needed and aim to arrive with them, which can save you a second visit.
Common boiler faults we fix
No heating or hot water
The most common call we get
Often a failed diverter valve, pump, fan or ignition fault, or a problem with your controls.
- Diverter valves and pumps
- Ignition and fan faults
- Thermostats and timers
Losing pressure or leaking
Pressure keeps dropping
Usually a leak on the system, a failed expansion vessel or a faulty pressure relief valve.
- Expansion vessels
- Pressure relief valves
- Leaks on the boiler or pipework
Error codes and lockouts
Boiler keeps locking out
We diagnose the fault behind the code rather than just resetting it.
- Frozen condensate pipes
- Flame and gas valve faults
- Sensor and PCB faults
Repair or replace?
Most faults are worth repairing. But if your boiler is over 12–15 years old, keeps breaking down or parts are hard to get, a new boiler may save you money.
Our engineers fit boilers as well as fix them, so we’ll give you an honest view either way. Use our instant new boiler estimate to compare.
Smell gas? Leave the property and call the National Gas Emergency Service on 0800 111 999.
What our customers say
Rated 4.8 out of 5 from more than 140 Google reviews.
“Just had Robert come over and fix a boiler issue: really nice guy, very knowledgeable and talked me through what he’d done. Diagnosed and fixed it in under an hour.”
Google review
“Excellent service. Robert was incredibly professional. Diagnosed my boiler fault and promptly fixed it. He was very thorough. Great job!”
Google review
“Quick to respond to emergency boiler request, polite knowledgeable engineer who clearly explained the problems… returned with parts and fixed problem, would definitely use again.”
Google review
Boiler repair FAQs
Answers to the questions we’re asked most.
How much does a boiler repair cost?
The diagnostic visit is £120 including VAT and covers the first hour on site. If parts are needed, we give you a fixed price for the parts and any return visit before going ahead, so you always know the cost of the repair first.
Will you fix my boiler on the first visit?
Often, if we have the part with us. Many faults need a specific part ordered for your boiler, so we diagnose the fault, give you a fixed price for the repair and come back to fit the part. Sending us the details and photos first, using the form on this page, gives us the best chance of bringing the right part.
Why can’t you just bring the part for my fault code?
Most fault codes can be caused by several different parts, so the boiler has to be tested to find the real cause. Parts also vary between versions of the same boiler, so we order against its GC number and serial number to get the right one.
What is a GC number?
A seven-digit number that identifies your exact boiler model. It’s on the data badge, usually under the boiler or behind the front panel. A photo of the badge in the form on this page helps us a lot.
Can you come today?
Book online to see our earliest slot, or call 01223 652 740 if you have no heating or hot water and we’ll do our best to fit you in. Our engineers work Monday to Thursday 8am–5pm and Friday 8am–4pm.
Which boilers do you repair?
All makes and models of domestic mains gas and LPG boilers.
Is it worth repairing an old boiler?
Often, yes. If it isn’t, we’ll explain why and give you a quote for a replacement.
What happens if you find something unsafe?
As Gas Safe engineers we must follow the Gas Safety (Installation and Use) Regulations. If an appliance is At Risk or Immediately Dangerous, we label it “Danger Do Not Use”, email you a gas warning notice and, with your permission, turn it off or disconnect it until it’s repaired. If the fault is on the gas meter, the gas emergency service (Cadent, 0800 111 999) needs to attend. The booked visit is still charged, and we quote for any repair. Read our full unsafe situations procedure.
What should I do if I smell gas?
Turn off the gas at the meter if it is safe to do so, open windows, don’t use switches, and call the National Gas Emergency Service on 0800 111 999.
Need your boiler looked at?
Book a diagnostic visit online, or call our Cambridge team.
Related: Boiler servicing · New boilers · Power flushing · Hot water cylinders