--- title: "Underfloor Heating Installation Barry | JR Heating" description: "Wet underfloor heating installation in Barry & Vale of Glamorgan. Energy-efficient, even warmth, frees wall space. Compatible with boilers & heat pumps. Call 07863 791710." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "Service", "name": "Underfloor Heating Installation", "description": "Wet underfloor heating design and installation in Barry and the Vale of Glamorgan. 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As a guide, a typical ground-floor installation (60–80m²) costs between £3,000 and £5,500 excluding floor finishes. Retrofit low-profile systems are at the higher end due to the specialised materials required." } }, { "@type": "Question", "name": "Can underfloor heating be installed in an existing house?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Low-profile retrofit systems can be installed on top of existing floors with as little as 15–20mm of additional height. This is ideal for renovations where digging up the existing floor is not practical." } }, { "@type": "Question", "name": "What flooring works best with underfloor heating?", "acceptedAnswer": { "@type": "Answer", "text": "Stone, porcelain tile, and ceramic tile offer the best heat transfer. Engineered wood and laminate are also suitable. 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[Cookie Policy](/cookie-policy) AcceptReject [](https://m.facebook.com/100075883703594/)[](https://www.instagram.com/jrheatingservicesltd/) 1 Park Ave, Barry CF62 7RL [info@jrheatingservices.co.uk](mailto:info@jrheatingservices.co.uk)[Alt: 07598 835959](tel:07598835959) [![JR Heating Services Ltd](/assets/logo-BVe0Q8PK.webp)](/) [Home](/)[About](/about) Services [Gas Engineer](/services/gas-engineer)[Boiler Installation](/services/boiler-installation)[Boiler Repair](/services/boiler-repair)[Boiler Service](/services/boiler-service)[Air Source Heat Pumps](/services/air-source-heat-pumps)[Plumbing](/services/plumbing)[Heating](/services/heating)[Underfloor Heating](/services/underfloor-heating)[Landlord Certificates](/services/landlord-certificates)[Radiator Installation](/services/radiator-installation)[Gas Appliance Installations](/services/gas-appliance-installations) Areas [Barry](/areas/barry)[Cardiff](/areas/cardiff)[Penarth](/areas/penarth)[Bridgend](/areas/bridgend)[Cowbridge](/areas/cowbridge)[Pontypridd](/areas/pontypridd)[Porthcawl](/areas/porthcawl)[Maesteg](/areas/maesteg)[Vale of Glamorgan](/areas/vale-of-glamorgan) [Reviews](/reviews)[Our Work](/our-work)[Specials](/specials)[Contact](/contact) [Get a Quote](/contact)[07863 791710](tel:07863791710) [New Boilers Priced From £1,700 — Fully Fitted · 0% Finance Available](/specials) 1. [Home](/) 2. [Services](/services) 3. Underfloor Heating # Underfloor Heating Installation in Barry & South Wales Transform the way your home heats with a professionally installed wet underfloor heating system. Even warmth across every room, lower running costs than radiators, and no wall space wasted. Designed and installed by qualified heating engineers. [Get a Free Quote](/contact) [07863 791710](tel:07863791710) 9+ years established · Compatible with boilers & heat pumps · Full system design 9+ Years Experience 25% More Efficient 50yr Pipe Lifespan Full System Design All Floor Types ## What Is Wet Underfloor Heating? Wet underfloor heating (UFH) uses warm water flowing through pipes embedded in or beneath your floor to heat the room from the ground up. Unlike radiators, which create convection currents that heat the air unevenly, underfloor heating radiates warmth evenly across the entire floor surface — creating consistent, comfortable temperatures at occupant level. The system connects to your existing boiler or an air source heat pump via a manifold that controls the flow of warm water to each zone. Because underfloor heating operates at lower water temperatures (35–45°C vs 60–80°C for radiators), it is inherently more energy efficient and pairs perfectly with heat pumps and condensing boilers. Underfloor heating is ideal for new builds, extensions, ground-floor renovations, conservatories, and bathroom or kitchen refits. It works with screed, timber, tile, stone, and engineered wood flooring. We design each system individually based on room dimensions, floor construction, insulation levels, and heat loss calculations. Beyond comfort and efficiency, underfloor heating eliminates the need for radiators — freeing up valuable wall space for furniture and giving your rooms a cleaner, more modern aesthetic. Our Work ## Examples of Our Work ![Plant room installation with underfloor heating manifold, buffer tank and pipework](/assets/project-61-DLEICCw1.webp) [View all completed projects](/our-work) ## Why Radiators Are Not Always the Best Option Radiators heat air unevenly. Hot air rises from the radiator to the ceiling, circulates, and cools as it descends on the opposite side of the room. This creates temperature stratification — warm at head height, cool at floor level. You end up heating the ceiling while your feet stay cold, which is both uncomfortable and wasteful. Radiators also occupy wall space that could be used for furniture, shelving, or design features. In smaller rooms, radiator placement significantly limits layout options. This is particularly frustrating in kitchens, bathrooms, and open-plan living areas where every square metre counts. Traditional radiators need to run at 60–80°C to produce adequate heat. This high flow temperature reduces boiler efficiency and is incompatible with heat pump systems, which operate best at 35–45°C. If you plan to install an air source heat pump in the future, underfloor heating makes the transition far more effective. Many homeowners assume underfloor heating is a luxury reserved for expensive new builds. In reality, modern low-profile systems can be retrofitted into existing properties with as little as 15mm of additional floor height — making them accessible for renovations and refurbishments at a reasonable cost. Our Process ## How It Works 1 ### Site Survey & Heat Loss Calculation We survey your property, calculate heat loss for each room, and determine the correct pipe layout, spacing, and manifold configuration. 2 ### System Design We produce a detailed design showing pipe routes, manifold location, zone controls, and integration with your existing or new heat source. 3 ### Floor Preparation We prepare the subfloor, lay insulation boards to prevent downward heat loss, and install edge insulation strips around the perimeter. 4 ### Pipe Installation We lay the heating pipes in the calculated pattern — typically at 150–200mm spacing — and secure them to the insulation boards. Pipes are pressure-tested before screeding. 5 ### Manifold & Controls We install the manifold, connect each zone, fit mixing valves (if needed for boiler compatibility), and install thermostats for individual room control. 6 ### Commissioning Once the screed or floor covering is laid, we commission the system gradually, set flow temperatures, and configure the zone controls for optimal performance. Benefits ## Why This Matters ### 25% More Efficient Lower flow temperatures mean your boiler or heat pump runs more efficiently, reducing energy consumption and gas or electricity bills. ### Lower Running Costs Underfloor heating costs less to run than radiators because it operates at lower temperatures while delivering better comfort. ### Even, Comfortable Warmth Heat rises evenly from the floor, eliminating cold spots and creating consistent temperatures at the level where you actually feel them. ### 50-Year Pipe Lifespan Modern PEX and PE-RT pipes used in underfloor heating systems have a rated lifespan of 50+ years with virtually no maintenance. ### Frees Up Wall Space No radiators means more room for furniture, design features, and clean wall lines throughout your home. ### Heat Pump Compatible Underfloor heating is the ideal partner for air source heat pumps — maximising efficiency and preparing your home for renewable heating. ## Underfloor Heating Systems in Detail We install wet underfloor heating using high-quality PEX or PE-RT pipes rated for at least 50 years of continuous use. These pipes are flexible, corrosion-resistant, and designed specifically for hydronic heating applications. We do not install electric underfloor heating mats — wet systems are significantly more energy efficient and cost-effective for whole-room heating. For new builds and extensions where screed floors are being laid, we install pipes directly onto insulation boards and cover them with a liquid screed (typically 50–75mm deep). The screed acts as a thermal mass, absorbing and slowly releasing heat for consistent temperatures throughout the day. For renovation projects where floor height is limited, we use low-profile systems that sit within pre-grooved insulation panels. These systems require as little as 15–20mm of additional floor height and can be covered with self-levelling compound before fitting your chosen floor finish. Each room or zone is controlled independently via a manifold — a central distribution point that sends warm water to each circuit and allows individual temperature adjustment. Manifolds are typically located in a utility room, under-stairs cupboard, or airing cupboard where they are accessible but out of sight. Floor finishes have different thermal conductivities. Stone, tile, and porcelain are the most efficient — they transfer heat quickly and retain it well. Engineered wood and laminate are also compatible with underfloor heating, provided the total tog value (including underlay) does not exceed 1.5. Carpet over underfloor heating is possible but less efficient — we recommend a maximum tog value of 1.0. We design every system using industry-standard heat loss calculations and CAD-based pipe layout drawings. This ensures correct pipe spacing (typically 150mm in bathrooms and 200mm in living areas), adequate flow rates, and even heat distribution. We also install mixing valves where the heat source operates at a higher temperature than the underfloor system requires. FAQ ## Frequently Asked Questions How much does underfloor heating cost to install? Costs vary depending on floor area, system type, and floor construction. As a guide, a typical ground-floor installation (60–80m²) costs between £3,000 and £5,500 excluding floor finishes. Retrofit low-profile systems are at the higher end due to the specialised materials required. Can underfloor heating be installed in an existing house? Yes. Low-profile retrofit systems can be installed on top of existing floors with as little as 15–20mm of additional height. This is ideal for renovations where digging up the existing floor is not practical. What flooring works best with underfloor heating? Stone, porcelain tile, and ceramic tile offer the best heat transfer. Engineered wood and laminate are also suitable. Carpet can be used if the combined tog value (carpet + underlay) is below 1.0–1.5. Is underfloor heating more efficient than radiators? Yes. It operates at lower water temperatures, reducing boiler energy consumption by up to 25%. When paired with a heat pump, the efficiency gains are even greater. How long does installation take? Pipe installation typically takes 1–2 days for a ground floor. The screed or overlay then needs to cure before flooring can be laid. Total project time is usually 1–2 weeks including screed and floor finishing. Can I control each room separately? Yes. Each zone has its own thermostat and actuator on the manifold, allowing independent temperature control for every room. Does underfloor heating work with a combi boiler? Yes. A mixing valve reduces the boiler's output temperature to the correct level for underfloor heating. This works with combi, system, and heat-only boilers. How long do the pipes last? Modern PEX and PE-RT pipes are rated for 50+ years of continuous use. There are no moving parts in the floor, so maintenance is virtually zero. Can underfloor heating be used upstairs? Yes, but it requires careful consideration of floor construction, joist depth, and acoustic performance. We use clip-rail or spreader plate systems for upper floors to minimise build-up and maintain sound insulation. What happens if a pipe leaks? Pipe leaks in underfloor heating are extremely rare with modern materials. If a leak does occur, we can locate it using thermal imaging and carry out a targeted repair without replacing the entire floor. ### Related Services - [Air Source Heat Pumps](/services/air-source-heat-pumps) - [Heating Systems](/services/heating) - [Boiler Installation](/services/boiler-installation) - [Radiator Installation](/services/radiator-installation) ### Areas We Serve - [Barry](/areas/barry) - [Cardiff](/areas/cardiff) - [Penarth](/areas/penarth) - [Vale of Glamorgan](/areas/vale-of-glamorgan) ## Ready to Upgrade to Underfloor Heating? Free site survey. Full system design. Professional installation by qualified heating engineers. [Get a Free Quote](/contact) [07863 791710](tel:07863791710) Gas Safe Reg. No. 594173 · Worcester Bosch Accredited Installer [![JR Heating Services Ltd - Gas Safe registered heating engineers in Barry, Vale of Glamorgan](/assets/logo-BVe0Q8PK.webp)](/) Gas Safe registered [plumbing](/services/plumbing) and [heating](/services/heating) specialists serving [Barry](/areas/barry) and the [Vale of Glamorgan](/areas/vale-of-glamorgan) for over 9 years. 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TradeHelp Ltd is a credit broker, not a lender, and offers loans from Novuna Personal Finance, a trading style of Mitsubishi HC Capital UK PLC, authorised and regulated by the Financial Conduct Authority. Finance is subject to status and credit check, which must be completed before commencement of works. A 14-day cooling off period applies; if cancelled within 14 days, alternative payment of the full outstanding balance must be made. [Read full finance terms](/finance). © 2026 JR Heating Services Ltd. All rights reserved. Gas Safe Reg. No. 594173 [Privacy Policy](/privacy-policy)[Terms & Conditions](/terms-conditions)[Cookie Policy](/cookie-policy)[Finance](/finance)[Contact Us](/contact) [Call Now](tel:07863791710)[Get a Quote](/contact)