Underfloor Heating Installation types
Underfloor Heating Installation Types: A Guide for UK Trades
Understanding the various underfloor heating installation types is fundamental for UK tradespeople who want to plan, quote, and complete projects efficiently. The chosen method directly impacts the system’s responsiveness, floor build-up, and overall suitability for different types of properties. Whether working on a new build or tackling a complex renovation, selecting the right installation type ensures optimal performance, energy efficiency, and a seamless finish.
1. Screeded Underfloor Heating Systems
Screeded systems are among the most robust and widely used wet (hydronic) UFH installations. In this method, installers lay pipework over insulation boards before embedding it in a traditional or liquid screed layer, typically 65–75mm thick. While curing time may slightly extend the schedule, the results speak for themselves. The thermal mass provides long-lasting heat retention, excellent distribution, and outstanding compatibility with almost any flooring type. As a result, this method is ideal for new builds, large extensions, and ground floor applications.
2. Overlay / Low-Profile Systems
For retrofit or renovation scenarios where floor height is restricted, low-profile systems are the go-to solution. These involve using pre-routed insulation panels or ultra-thin screed layers to house either wet pipes or electric heating cables. With floor build-up starting from as little as 15mm, these systems help preserve existing thresholds while still delivering strong performance. Because they offer rapid response times and quicker installs, overlay systems are especially suited to residential updates and light commercial refurbishments.
3. Joisted Floor / Suspended Floor Systems
When working on timber-framed buildings or properties with suspended joists, underfloor heating can still be installed effectively. One common method involves laying aluminium spreader plates between joists and placing the UFH pipework into pre-cut channels. These plates help distribute heat evenly beneath the subfloor. Alternatively, pre-routed UFH panels can sit directly on top of the joists. Properly insulating the joist void is essential to prevent heat loss and to maximise system efficiency in these applications.
4. Dry Systems (Electric UFH)
Electric underfloor heating is a dry installation method and often the quickest to install. Tradespeople lay heating mats or cables directly over insulation, just beneath the final floor finish — such as tiles, vinyl, or laminate. These systems are especially popular in smaller rooms like bathrooms and kitchens, where quick heat-up times and minimal build-up are priorities. A certified electrician should always perform the final connection and thermostat commissioning.
Ultimately, choosing the right underfloor heating installation type depends on multiple factors — including project size, floor structure, heat-up expectations, and budget. At Underfloor Kits, we support all major installation types with our full range of UFH kits and installation accessories. Need guidance? Contact our technical team today to find the perfect system for your next job.