
Boiler repair in Swansea
Boiler diagnostics and repairs on all major brands across Swansea and Gower. No call-out fee, £65 per hour standard rate and a fixed price before work starts.
Common boiler faults we fix
Boiler locked out or showing a fault code
We read the code, find the underlying cause and explain the fix before touching anything.
No hot water or lukewarm taps
Diverter valves, thermistors and plate heat exchangers are the usual suspects on a combi.
Losing pressure
We trace the leak or failing expansion vessel rather than just topping the system up.
Noisy or kettling boiler
Usually scale or sludge, a chemical clean or power flush restores efficiency.
What a boiler repair costs
| Job | Typical price | What's included |
|---|---|---|
| Diagnostic visit | £65 per hour | Travel, fault finding and a written fixed quote |
| Common part replacement | £95 – £320 | Labour, part and a full function test |
| Major component (heat exchanger, PCB) | £320 – £650 | Part, labour and system recheck |
| System chemical clean | £180 – £360 | Cleanse, flush and inhibitor |

How a repair visit works
We start with the fault code and the symptoms, then test the actual components rather than swapping parts and hoping. Most combi faults come down to a handful of items, diverter valve, thermistor, pressure sensor, fan or PCB, and we carry the common ones on the van.
Once we know the cause you get a fixed price in writing covering parts, labour and testing. If the part has to be ordered we tell you the lead time up front and leave the system in a safe condition in the meantime.
Repair or replace?
If your boiler is under about ten years old and the part is available, repair is nearly always the better value option. Where a boiler is older, repeatedly failing or parts are obsolete, we will say so and quote a replacement alongside the repair so you can compare.
As a rough rule, when a single repair costs more than a third of a new installation and the appliance is past twelve years old, replacement usually pays for itself in efficiency and fewer call-outs. We will never push a new boiler on you to avoid doing a repair.
Brands we work on
Worcester Bosch, Vaillant, Ideal, Baxi, Glow-worm, Viessmann, Potterton and most other major makes, including system and conventional boilers as well as combis. Repairs are carried out so your manufacturer warranty stays intact, and all our work is covered by our 12-month workmanship guarantee.
Get a fixed price before we start
Tell us what is going on and we will book a realistic arrival window across Swansea and Gower.
Get a free quote