Can A Heating Engineer Fix My Underfloor Heating October 31, 2025 Underfloor heating is one of the most efficient and comfortable ways to warm your home, but when it stops working properly, it can leave you feeling frustrated. Many homeowners wonder if a heating engineer is the right professional to call for repairs, and the answer is yes. Skilled heating engineers are trained to diagnose and fix underfloor heating systems, whether they are water-based or electric. How Heating Engineers Can Fix Your Underfloor Heating Cold Patches or Uneven Heating If you notice certain areas of your floor staying cooler than others, it could be due to trapped air in the system or blockages restricting water flow. In hydronic (water-based) systems, this can happen when air pockets form within the pipework, preventing hot water from circulating evenly. A heating engineer can perform a system flush or bleed the system to restore balanced heat distribution. They may also use a thermal camera to map temperature differences across the floor and identify exactly where the issue lies. In some cases, the problem might be linked to incorrect flow settings on the manifold, which engineers can adjust to balance heat across all zones. Leaks in the Pipework Leaks are less common but can be difficult to detect since the pipes are installed beneath the floor. A small leak can cause your boiler’s pressure to drop and make your heating less efficient. Engineers use thermal imaging, pressure testing, or acoustic detection equipment to locate hidden leaks without unnecessary disruption. Once found, they can isolate the affected circuit, repair or replace the section of pipe, and re-pressurise the system safely. In some cases, they may also apply sealants for minor leaks to prevent further water loss. Electrical Faults In electric underfloor heating systems, problems often arise from damaged cables, worn connections, or faulty sensors. These faults can cause the system to trip your electrics or fail to heat up at all. A qualified heating engineer with electrical experience can test the system with specialist tools, such as a multimeter or insulation resistance tester, to pinpoint the problem. Once identified, they can replace damaged heating mats, fix faulty connections, or install new thermostatic sensors to restore consistent warmth. Thermostat or Control Failures If your thermostat stops responding or displays incorrect temperatures, it can cause your underfloor heating to overheat or stay cold. Sometimes this is due to sensor issues, loose wiring, or a software error in smart controls. Heating engineers can recalibrate, rewire, or replace thermostats to ensure accurate temperature control and consistent comfort. For modern systems, they can also update firmware, reconnect wireless controls, or integrate new smart thermostats for improved efficiency and ease of use. Manifold and Pump Problems In water-based systems, the manifold distributes hot water through each heating circuit. If the pump fails or the valves get stuck, certain zones might stop heating properly. A heating engineer will inspect and test each valve, check pump performance, and clean any debris from filters or strainers. They can also adjust the pressure and flow rates to ensure the system runs smoothly and efficiently. Insulation or Installation Issues Sometimes, poor installation or inadequate insulation can lead to heat loss and uneven warmth. A heating engineer can assess the system’s layout and floor build-up to identify where improvements are needed. They might recommend additional insulation, recalibration of pipe spacing, or even partial reinstallation to improve performance and reduce running costs. When to Call a Professional If your floors are taking too long to heat, the temperature feels inconsistent, or the system has stopped working altogether, it’s time to call a heating engineer. Trying to fix the issue yourself can cause further damage, especially in wet systems connected to boilers. A professional will ensure all work meets safety and efficiency standards. Reliable Underfloor Heating Repairs Across Stockport, Wilmslow, and Altrincham Need help with your underfloor heating? 7Day Plumbing Service provides expert diagnostics and repairs to get your system back to full performance. Our experienced heating engineers are fully qualified to handle all types of heating systems. Call us today on 07896487603 or fill out our contact form to schedule your heating repair service.
