Underfloor Heating Repair Services
Our certified engineers repair all types of underfloor heating systems across London
Electric Underfloor Heating Repairs
Expert diagnosis and repair of electric mat and cable underfloor heating systems. We fix heating elements, connections, and damaged cables.
- Heating element repairs
- Cable fault detection
- Mat replacement
- Connection repairs
Water Underfloor Heating Repairs
Professional repairs for wet underfloor heating systems including pipe repairs, valve replacements, and pressure issues.
- Pipe leak repairs
- Valve replacements
- Pump repairs
- Pressure balancing
Thermostat & Control Repairs
Diagnosis and repair of faulty thermostats, programmers, and zone control systems for all underfloor heating types.
- Thermostat replacement
- Programmer repairs
- Zone valve repairs
- Wiring fixes
Common Underfloor Heating Problems We Fix
Experiencing issues with your underfloor heating? We can help.
Underfloor heating not warming up
Check thermostat settings, test heating elements or flow rates
Cold spots on floor
Identify damaged heating cables or blocked pipe sections
Thermostat not responding
Test electrical connections and replace faulty components
System running but floor cold
Check manifold valves, pump operation, and flow temperatures
Uneven heating across rooms
Balance flow rates and check zone controls
System making gurgling noises
Bleed air from system and check water pressure
Why Choose Our Repair Service?
Fast Response
Same-day repairs available across London
Guaranteed Work
All repairs backed by our warranty
All Systems
Electric, water, and hybrid systems
Certified Engineers
Fully qualified technicians
Wet & hydronic underfloor heating repair
Wet underfloor heating repair, water underfloor heating repair and hydronic underfloor heating repair all describe the same pumped pipe-loop system — hot water circulated through PEX or PB loops beneath screed or floor panels. Faults concentrate in four places: the loops themselves, the circulating pump, the blending valve and the controls. Our engineers test each in turn so you are not paying for guesswork.
System faults we fix
- • Underfloor heating not getting hot even though the boiler fires
- • Cold spots and uneven heat between rooms
- • Airlock in a loop stopping circulation
- • Flushing and powerflush to clear sludge and magnetite
- • Pressure loss and repeated refilling of the system
- • Noisy pipework, gurgling and knocking under the floor
Leak detection & pipe repair
Falling pressure usually means a leak. We use thermal imaging, acoustic tracing and tracer gas to pin the leak to a square metre before any floor is lifted, then repair the pipe with a screed-safe coupler and re-pressure test the loop.
- • Non-invasive thermal and acoustic leak detection
- • Pinpoint pipe repair with minimal floor disruption
- • Manifold and union leak repair
- • Post-repair pressure hold test and refill
Underfloor heating fault finding & diagnostics
Our underfloor heating fault finding visit covers the full chain: thermostat call for heat, wiring centre switching, actuator movement, pump operation, blending valve temperature, flow rates at each circuit and floor surface temperature once the screed has come up. You receive written underfloor heating diagnostics with photos and a fixed price for the repair. Component and control faults — manifolds, flow meters, actuators, pumps, mixing valves and wiring centres — are covered in detail on our underfloor heating manifold repair page.
Related Services
Explore our other underfloor heating services
UFH Installation
Professional installation of electric and water-based systems
Learn moreUFH Maintenance
Annual servicing to keep your system running efficiently
Learn moreThermostat Controls
Smart thermostats and zone control installation
Learn moreEmergency Repairs
24/7 emergency response for heating failures
Learn moreNeed Underfloor Heating Repairs?
Call now for fast, professional repairs