Survey and Specification
A qualified engineer visits to measure, carry out a heat loss calculation and specify either wet or electric circuits, pipe layout and controls.
TJ&H · St Asaph & North Wales
Underfloor Heating in St Asaph
Design and install of wet and electric underfloor heating for new builds and retrofits, integrated with boilers, heat pumps or oil systems. Transparent quoting and a clear process from survey to handover.
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Underfloor Heating Specialists with 18 Years Experience
Clear written quotes with no hidden extras: one agreed price covering survey, materials and aftercare. TJ&H Plumbing & Heating design and install wet and electric underfloor heating for new builds and retrofit projects, integrating with existing boilers, heat pumps or oil systems to deliver even, efficient warmth. Every installation begins with a detailed site survey and heat loss calculation, is carried out to Gas Safe and OFTEC standards and backed by our 12 month workmanship guarantee. We work across St Asaph and North Wales and offer same-day response for urgent heating issues.
How It Works
Professional Installation
Experienced plumbers fit pipework, manifolds and insulation or lay electric mats, working to building regs and preserving finishes during retrofit work.
Commissioning and Handover
System is pressure tested, commissioned to the heat source, controls programmed and we supply a clear handover pack with maintenance advice.
Why Choose us for Underfloor Heating?
Tailored design, not one-size-fits-all
Systems are specified to your property type and floor construction, so new builds and older cottages both get the right solution for comfort and efficiency.
Qualified, proven workmanship
Gas Safe and OFTEC accredited, with 18 years experience and a 12 month workmanship guarantee for peace of mind on every installation.
Local support and rapid response
Based in St Asaph, we know North Wales building types and offer same-day response for urgent heating faults, plus WhatsApp enquiries for quick updates.
What this service covers
Wet or electric underfloor heating, specified to floor construction and intended use, makes sense for ground floor extensions, complete refurbishments and new builds across St Asaph and North Wales. Wet systems connect to your boiler, heat pump or oil burner and are ideal for whole-house heating, while electric systems are fast to install in single rooms or loft conversions.
Transparent process and local knowledge, from the initial heat loss survey to commissioning and aftercare. For a quick chat or to arrange a site visit, call to 01745 299210 or email enquiries@tjhplumbingheating.co.uk. All installations are carried out to Gas Safe and OFTEC standards.
Frequently Asked Questions
Which is better for my project, wet or electric underfloor heating?
Wet underfloor is the preferred choice for full home heating and links to boilers or heat pumps for economy. Electric systems are quicker to fit and suit single rooms, bathrooms or loft conversions. We assess floor build up, insulation and control needs on site before recommending the best option.
Can underfloor heating be fitted with my existing boiler?
Yes, wet systems are routinely integrated with existing boilers, heat pumps or oil appliances. We check system compatibility, pipework and flow temperatures on the survey and, where required, fit manifolds, mixing valves or a dedicated pump to ensure efficient operation.
How disruptive is a retrofit installation?
Retrofit works are planned to minimise disruption: electric mats require minimal floor build up, while wet systems need more access for pipework. We protect floors, work to agreed schedules and leave a tidy site. The survey will identify practical access routes and any preparatory work needed.
Do I need new controls with underfloor heating?
Yes, dedicated thermostats and room controls are important to get the best performance and savings from underfloor systems. We supply programmable controllers and zoned thermostats so each area runs to the right temperature and schedule for comfort and economy.
What aftercare and guarantees do you provide?
Installations are handed over with commissioning records and maintenance advice. Work is carried out to Gas Safe and OFTEC standards, and all installations include a 12 month workmanship guarantee from TJ&H Plumbing & Heating. We also offer servicing and emergency response if faults occur.
Coverage & related services
Based in St Asaph, we cover surrounding North Wales towns. Check the areas we serve or contact us with your postcode.