Survey and sizing
A site visit to measure rooms, inspect pipe runs and recommend radiator types and valve specification to match your boiler and heating goals.
TJ&H · St Asaph & North Wales
Radiator Installation in St Asaph
Supply and fit radiators, valves and pipework, commissioned and balanced for even heating. Same-day call-outs, Gas Safe and OFTEC accredited, backed by an 18 year track record and a 12 month workmanship guarantee. If our work has failed due to our workmanship, then we will make it right.
Request a quote
Your Local Radiator Installation Experts
Cosy, even heating throughout your home, with radiators sized, fitted and balanced to deliver comfortable warmth in every room. TJ&H supply and fit radiators, valves, brackets and associated pipework across St Asaph and surrounding towns, then commission and balance the system for efficient performance. Gas Safe and OFTEC accredited, with 18 years' experience.
How It Works
Supply and fit
We deliver the chosen radiators, install brackets and pipework, fit valves and finish pipe terminations cleanly, respecting your home and access.
Commissioning and handover
System bleeding, balancing and commissioning for even flow, followed by a walkthrough of controls and a 12 month workmanship guarantee.
Why Choose us for Radiator Installation?
Even heating and improved comfort
Professional sizing and system balancing means rooms heat evenly, avoiding cold spots and reducing boiler cycling for better comfort and efficiency.
Qualified and trusted engineers
Gas Safe and OFTEC accredited technicians with 18 years' practical experience, handling gas, oil and LPG installations safely and to regulation.
Guaranteed workmanship and rapid response
All installations include a 12 month workmanship guarantee and access to same-day emergency call-outs and WhatsApp enquiries to minimise disruption.
What this service covers
What we install and why it matters
TJ&H supply and fit a wide range of radiators, from compact steel panels and column radiators to towel rails for bathrooms. Work includes new pipework, valves, wall brackets and thermostatic radiator valves where required, so each radiator performs as intended within your central heating circuit.
System balancing and commissioning
Correct commissioning is as important as the radiator itself. We bleed and balance the system, set TRVs where needed and confirm flow to each radiator so the whole system hits the required room temperatures. For older systems we can advise on power flushing and controls upgrades to protect new radiators and improve efficiency. For enquiries or emergency response call 01745 299210 or email enquiries@tjhplumbingheating.co.uk. We also accept WhatsApp messages for photos and quick assessments.
Frequently Asked Questions
How long does a typical radiator installation take?
Most standard radiator replacements take a few hours per radiator, including fitting valves and brackets. Installing several radiators or adding new pipe runs can take a day or more, depending on access and the property layout. We provide a clear timeframe at the survey stage.
Do I need a power flush when fitting new radiators?
Not always, but power flushing is recommended for older systems suffering from sludge or blockages. Clean systems protect new radiators and ensure even flow. During the survey we assess the system and advise whether a power flush would improve performance.
Can you move a radiator to a different wall or room?
Yes, we can reposition radiators, though moving between rooms may require new pipework routes and wall repairs. We quote based on the complexity of pipe runs, floor or wall chasing and any decorations work you want left tidy.
Which valves should I choose for my radiators?
Thermostatic radiator valves are ideal for room-by-room temperature control, while lockshield valves help balance flow. We recommend the correct valve type for your heating controls and fit them as part of the installation, commissioning the system afterwards.
Are your engineers qualified to work on gas and oil systems?
Yes. TJ&H are Gas Safe and OFTEC accredited, so installations and connections to gas and oil boilers meet regulatory safety standards. We also support LPG systems and coordinate with boiler servicing where required.
Coverage & related services
Based in St Asaph, we cover surrounding North Wales towns. Check the areas we serve or contact us with your postcode.