Efficient. Comfortable. Built for Every Property.
Underfloor Water Heating Systems
At Smart Renewables & Heating, we design and install high-performance underfloor water heating systems for new builds, renovations, and retrofit projects. Whether you're installing a new floor or upgrading an existing heating system, we offer a solution to suit your property and budget.
Underfloor heating provides even heat distribution, improved energy efficiency, and frees up valuable wall space by removing the need for traditional radiators. Our experienced team will recommend the most suitable system based on your floor construction and project requirements.

Ideal for New Builds & Major Renovations
In Screed Underfloor Heating
An in-screed underfloor heating system is installed directly onto insulation before being covered with a sand and cement or liquid screed. The screed acts as a thermal mass, storing and evenly distributing heat throughout the floor.
This is one of the most efficient and durable underfloor heating systems available, delivering consistent comfort for years to come.
- Excellent heat retention
- Even, comfortable warmth across the entire floor
- Highly energy efficient
- Ideal for heat pumps and modern condensing boilers
- Perfect for new build properties and extensions
- Suitable for most floor finishes including tiles, stone, laminate and engineered wood
The Perfect Retrofit Solution
Overlay Underfloor Heating
Overlay systems are designed for properties where digging up the existing floor isn't practical. Special low-profile insulated panels are fitted directly over the existing subfloor, allowing heating pipes to be installed with minimal increase in floor height.
Overlay systems provide all the comfort and efficiency of wet underfloor heating while avoiding major structural work.
- Quick installation
- Minimal disruption
- Low floor build-up
- Ideal for renovation projects
- Faster heat-up times than traditional screed systems
- Compatible with most floor coverings
Designed for Suspended Timber Floors
In Joist Underfloor Heating
In-joist underfloor heating is installed between existing timber floor joists, making it an excellent choice for upstairs floors and traditional suspended timber ground floors.
Heat diffusion plates are fitted between the joists to spread warmth evenly across the floor.
This system is particularly popular for period properties and homes where preserving existing floor levels is essential.
- No increase in finished floor height
- Ideal for timber floor constructions
- Excellent for renovations
- Lightweight installation
- Energy efficient operation
- Suitable for upstairs and downstairs applications
Enhanced Performance for Timber Floors
In Joist with Biscuit Screed
The biscuit screed system combines traditional in-joist underfloor heating with specially designed biscuit screed panels that improve heat transfer and provide a more solid floor construction.
This innovative solution increases thermal performance while maintaining the benefits of an in-joist installation.
This system delivers the comfort of screeded underfloor heating while remaining suitable for suspended timber floor constructions.
- Improved heat output
- Faster response times
- Better heat distribution
- Strong, stable floor construction
- Ideal for engineered timber and tiled finishes
- Suitable for both renovations and new builds
Why Choose Wet Underfloor Heating?
Wet underfloor heating circulates warm water through pipes beneath your floor, creating an even, comfortable temperature throughout your home.
- Lower running costs
- Increased energy efficiency
- Compatible with air source and ground source heat pumps
- Works with modern gas boilers
- Eliminates cold spots
- Improved comfort
- More usable wall space
- Quiet operation
- Low maintenance
- Long system lifespan
Suitable Floor Finishes
Our systems are compatible with a wide range of floor coverings, including:
- Porcelain and ceramic tiles
- Natural stone
- Engineered wood
- Luxury Vinyl Tile (LVT)
- Laminate flooring
- Carpet (with suitable underlay)
- Polished concrete
Every installation is tailored to your property
Our Installation Process
Free consultation and site survey
Heat loss calculations and system design
Supply of premium quality components
Professional installation by experienced engineers
Pressure testing and commissioning
Full handover and operating guidance
Efficient, reliable, and built to last
Why Choose Us?
Experienced underfloor heating specialists
Bespoke heating designs
High-quality materials
Competitive pricing
Reliable installation
Fully tested systems
Excellent customer service
Domestic and commercial projects
Get Your Free Quote
Thinking about installing wet underfloor heating?
Whether you're building a new home, extending your property, or renovating an existing space, our team can recommend the ideal system for your project.
Contact Smart Renewables & Heating today for expert advice, a free consultation, and a no-obligation quotation.
