Premium Underfloor Heating With Expert Installation.
Step out of the bath or shower onto a warm floor every single morning. Sheldon Bathrooms installs electric underfloor heating in bathrooms throughout South Wales. It’s fully fitted under your selected floor tiles or LVT. The system is professionally wired and controlled by a thermostat, ensuring comfort all year round.
- Fully Insured Installers
- Free In-Home Estimate
- Fitted Alongside Floor Installation
- Workmanship Warranty Included
- Fully Insured Installers
- Free In-Home Estimate
- Fitted Alongside Floor Installation
- Workmanship Warranty Included
Is Your Bathroom Floor Cold, Uncomfortable, and Uninviting?
A cold bathroom floor is something homeowners accept. They step onto freezing tiles first thing in the morning, right after a shower, day after day. It’s one of the most common complaints about UK bathrooms, and one of the simplest to fix. Many people think underfloor heating is costly, complex, or only for major renovations. None of those things is true.
- Cold tile floors that make getting out of the shower or bath genuinely unpleasant every morning
- A bathroom that feels cold and uncomfortable in autumn and winter, despite adequate central heating
- Towel rails and radiators that take up valuable wall space without warming the floor beneath your feet
- The assumption that underfloor heating can only be added during a full bathroom renovation
- No way to control bathroom floor temperature independently from the rest of the home's heating system
Warm Floors Every Morning. Installed in a Single Day.
We install electric underfloor heating systems in bathrooms throughout South Wales. These systems go under your floor tiles or LVT during installation. They connect to a programmable thermostat, so you stay in control. It’s a smart upgrade for your bathroom. When installed properly under the right floor, you’ll feel the comfort right away, and it lasts.
- Electric underfloor heating mat systems sized and laid correctly for your bathroom floor area
- Works well with porcelain and ceramic floor tiles. These tiles are the best at conducting underfloor heat.
- Also compatible with certain LVT products where the manufacturer's specification allows
- Programmable thermostat fitted and set so your floor is warm exactly when you need it
- Installed cleanly alongside your flooring as part of a single coordinated job
Everything You Need to Know
Electric Underfloor Heating Mats
We install electric underfloor heating mats. They are a practical and cost-effective choice for bathroom heating in the UK. Heating mats fit your bathroom floor area. They go directly on the subfloor before tiling. You connect them to a thermostat for precise temperature control. No boiler connection required, no major disruption to existing pipework.
Underfloor Heating Cable Systems
For bathrooms with odd shapes or layouts, standard mats may not fit well. Loose heating cable systems provide more flexibility. Cable is laid at a consistent spacing across the floor area and embedded in a bed of flexible tile adhesive before the floor tiles are laid on top.
Compatible Floor Coverings
Electric underfloor heating works best under porcelain and ceramic tiles. These materials conduct and hold heat well. Some LVT products work with underfloor heating, but they need the manufacturer’s approval. We check compatibility. This happens in your free consultation. It’s done before you order or install any materials.
Programmable Thermostats
Every underfloor heating installation comes with a programmable thermostat. We fit it on the wall and set it up. This way, your floor reaches the right temperature at the right time, without wasting energy. Modern thermostats let you schedule temperatures accurately. They also set floor temperature limits and allow easy manual overrides. This gives you complete control every day.
Subfloor Preparation & Insulation
Placing an insulation board under the heating mat boosts efficiency. It directs heat up into the floor instead of down into the subfloor. If the subfloor needs leveling or prep before laying the heating system, we handle that work too. It’s all part of the same job, done in the right order and done well.
Floor Sensor & Safety Protection
Every electric underfloor heating system we install has a floor temperature sensor. This sensor is placed in the floor screed, next to the heating element. This sensor sends information to the thermostat. It helps stop the floor from getting too hot. This protects the heating system and the floor covering from heat damage over time.
Free In-Home Consultation
We come to your home in South Wales. We measure the bathroom floor area, check the subfloor’s condition, and confirm the floor covering you plan to use over the heating system. We measure the heatable floor area carefully. This includes fixed furniture, the toilet base, and the space for any bath or shower tray. We do this so the heating mat or cable is the right size for comfort and efficiency. Completely free, no obligation.
System Specification & Quote
First, we determine the floor area, subfloor condition, and floor covering. Then, we select the right underfloor heating system, either mat or loose cable. Finally, we give you a detailed written quote. This includes the heating system, thermostat, insulation board, subfloor prep, and installation. The price agreed is the price you pay.
Subfloor Preparation
Before the heating system is laid, the subfloor is assessed for level and stability. Where needed, a levelling compound is applied and allowed to cure fully. An insulation board is laid on the floor. This helps keep heat from escaping downward. Instead, it directs warmth upward into the floor covering.
Underfloor Heating Mat or Cable Installation
Lay the heating mat or cable across the prepared floor. Make sure to keep the right spacing and avoid any spots under fixed furniture. The floor temperature sensor is placed correctly in the floor build-up. It connects back to the thermostat on the wall. The heating element is embedded in flexible tile adhesive. It is ready for floor tiles once the adhesive cures.
Floor Tiling & Thermostat Fitting
Once the heating system is embedded and the adhesive has cured, floor tiles are laid on top of your chosen design and finish. The programmable thermostat mounts on the wall. It connects to the heating system and floor sensor. You can set it to warm the floor when you need it.
Final Walkthrough & System Test
Before we leave, we test the underfloor heating system fully. This checks that it heats evenly, responds well to the thermostat, and works properly. We walk you through how to use and programme the thermostat and make sure you're completely satisfied with the finished result before we go.
Underfloor Heating Before & After
Real bathrooms across South Wales, real results. Every photo displays a real Sheldon Bathrooms project. You can see completed floors with underfloor heating installed underneath: no CGI, no filters, no stock images.
See what we can do for YOUR bathroom floor
Ready to wake up to a warm bathroom floor?
Free in-home consultation · Honest, fixed-price quote · Fitted in a single day
Fully Insured. Fully Accountable.
Underfloor heating is one of those installations where doing it correctly the first time really matters. A heating mat that’s not in the right place can cause problems. A misaligned sensor can lead to issues, too. The wrong system under the floor may result in uneven heating, floor damage, or poor performance. At Sheldon Bathrooms, our team handles every underfloor heating installation. They know how the system works from the subfloor up. We coordinate with your flooring installation to ensure everything is done in the right order and to the right standard, the first time.
Full Public Liability Insurance
Sheldon Bathrooms insures all underfloor heating installation work. It is fully covered by public liability insurance. Your home and property are protected throughout the entire installation from start to finish.
Quality Workmanship Guarantee
We stand behind every underfloor heating system we install. If something isn't working after we finish, we return to fix it. No debate, no delay, and no extra charge.
Personally Vetted Trade Team
Every person who works in your home has been personally selected and trusted by Danny over time. A qualified electrician from our trusted network takes care of the electrical connections. They handle the connections for underfloor heating systems. They are the right person for the job.
Transparent, Fixed Pricing
The price in your written quote is the price you pay. The costs for the heating system and thermostat are fixed. So are the costs for the insulation board, subfloor prep, and installation. All these prices are set from the start. So, there are no extra charges once work starts. Also, invoices will match what you approved.
Get Underfloor Heating In Your City
We install bathroom underfloor heating systems across South Wales from our base in Llanelli. Click your area to find out more about our underfloor heating service near you.
Swansea
Underfloor Heating Available
Llanelli
Underfloor Heating Available
Neath
Underfloor Heating Available
Port Talbot
Underfloor Heating Available
Mumbles
Underfloor Heating Available
Ammanford
Underfloor Heating Available
Carmarthen and Beyond
Underfloor Heating Available
Burry Port
Underfloor Heating Available
All of South West Wales
Underfloor Heating Available
Not sure if we cover your area? Give us a call and we’ll confirm straight away.
Common Questions
Still have questions about underfloor heating across South Wales? We’re happy to talk it through before you commit to anything.
How long does underfloor heating take to install in a bathroom?
In most cases, the underfloor heating system is installed the same day as the subfloor preparation. Once the adhesive cures, floor tiles are fitted on top. The thermostat is wired and commissioned as part of the same visit. When you install underfloor heating with a full bathroom floor, the job usually takes one to two days. This timing can vary based on the room size.
Is electric underfloor heating expensive to run in a bathroom?
Electric underfloor heating in bathrooms is cost-effective. Since bathroom floors are small, the system only needs to keep the temperature for short times each day. A programmable thermostat makes sure your system runs only when you need it. You can set it to warm up before your morning routine and then turn it off shortly after. Running costs depend on energy tariffs. Most homeowners see that bathroom underfloor heating only adds a little to their electricity bills.
Can underfloor heating be fitted under LVT as well as tiles?
Some LVT products are compatible with underfloor heating, but not all. It depends on the specific product’s heat tolerance rating and the manufacturer’s specification. Porcelain and ceramic floor tiles work best with underfloor heating. They conduct heat well and keep warmth for a long time. We advise on compatibility during your free consultation before any materials are ordered.
Can underfloor heating be added to an existing bathroom without a full renovation?
Yes, in many cases. If you’re replacing your bathroom floor or retiling it, add underfloor heating then. It causes little extra disruption and is cheaper than doing it later as a separate project. We can check your current bathroom for free. Then, we’ll let you know if we can add underfloor heating to the flooring without needing major renovations.
Which areas of South Wales do you cover for underfloor heating installation?
We serve South Wales from our Llanelli base. This includes Swansea, Neath, Port Talbot, Mumbles, Ammanford, Carmarthen, Burry Port, and nearby areas. If you’re unsure whether we reach your location, call us on 07802 414504, and we’ll confirm straight away.
Do you still have inquiries concerning our South Wales underfloor heating service? We’ll address all of your questions before you make a decision, so give us a call or request a free quote.
Ready for a Warm Bathroom Floor Every Morning? Get Your Free Quote Today.
Share details about your bathroom. We’ll come to your home in South Wales, check the floor area, and provide a clear, honest quote for underfloor heating. There’s no obligation, no pressure, and no cost.
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Request a Quote Online
Fill in the short enquiry form with a few details about your bathroom and the flooring you’re planning. We’ll get back to you promptly to arrange a convenient time to visit and assess the space.
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Every day: 8 AM – 6 PM