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TJ&H · St Asaph & North Wales
Boiler Repair in St Asaph
Rapid fault finding and boiler repairs across St Asaph. Gas Safe and OFTEC trained engineers, same-day call-outs and a 12 month workmanship guarantee to restore safe heating and hot water.
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Boiler Repair Specialists with 18 Years Experience
Trusted by homeowners in St Asaph for quick, clear communication and reliable same-day response, customers value our practical approach to boiler breakdowns. TJ&H's Gas Safe and OFTEC trained engineers specialise in fast fault finding, carrying common parts or sourcing replacements promptly. We prioritise safe, effective fixes and full safety checks.
How It Works
On-site diagnosis
A Gas Safe and OFTEC trained engineer completes systematic fault finding using diagnostic tools, pressure and combustion checks, and a full visual inspection.
Repair, test and paperwork
We replace faulty parts, complete safety and CO tests, show you the repaired components, and issue any relevant certificates plus a 12 month workmanship guarantee that if our work has failed due to our workmanship, then we will make it right.
Why Choose us for Boiler Repair?
Fast, accurate fault finding
Engineers concentrate on rapid diagnosis to identify the root cause the same day where possible, minimising disruption and repeat visits.
Gas Safe and OFTEC accredited
Work on gas and oil appliances is carried out by qualified engineers to regulatory standards, with safety checks and sign-off on completion.
12 month workmanship guarantee
Every repair is backed by a 12 month guarantee on workmanship, so you have confidence the job has been done properly and safely.
What this service covers
Fast, practical boiler repairs, focused on getting heating and hot water back quickly. Our engineers use structured fault-finding to trace thermostats, pumps, valves, PCB faults, ignition and combustion issues. Where parts are needed we either carry common spares or source them the same day and fit replacements, followed by pressure, leak and combustion checks. All gas work is carried out by Gas Safe registered engineers and oil work by OFTEC registered technicians.
For emergency enquiries contact us by phone or WhatsApp on 01745 299210 or email enquiries@tjhplumbingheating.co.uk. We cover St Asaph and nearby towns, offer same-day call-outs when possible.
Common faults we repair: no heat or hot water, boiler locking out, low pressure, kettling, strange noises, pilot or ignition failure.
Frequently Asked Questions
What happens during a boiler repair visit?
The engineer runs a step-by-step diagnosis including pressure checks, flow temperature tests, pump and valve operation, and combustion or CO checks where applicable. Faulty components are identified and either repaired or replaced; the boiler is then tested to ensure safe operation and paperwork is left with the customer.
How quickly can you attend for an emergency boiler breakdown?
We offer same-day call-outs where availability allows and prioritise emergency heating failures. Call or WhatsApp with the problem and location, and we will advise the earliest slot and any immediate safety steps you should take.
Can you repair any brand of boiler?
Our engineers have experience with most major boiler manufacturers and common components. If a specific part is proprietary and must be ordered, we will explain timescales and recommend a temporary measure where safe, or advise if replacement is more appropriate.
Is my repair covered by a guarantee?
Yes, all workmanship is covered by a 12 month guarantee. Manufacturer parts used will carry their own warranty where applicable; we will record details and supply any relevant documentation after the repair.
Should I repair or replace my old boiler?
This depends on the boiler's age, fault frequency, efficiency and whether parts remain available. We assess condition on-site and explain the practical options: a targeted repair to restore service, or a replacement if repairs are likely to be short term or unsafe long term.
Planning your quote
Tell us the boiler make, model, displayed fault code and whether you have heating or hot water. The repair cost depends on the fault, diagnosis and any replacement parts. Ask the team to explain the call-out and repair costs before work is agreed.
Coverage & related services
Based in St Asaph, we cover surrounding North Wales towns. Check the areas we serve or contact us with your postcode.