Family Company
40 Years Experience
Our experienced HIU maintenance contractors in London specialise in the servicing, repair, and ongoing care of heat interface units (HIUs).
At The Underfloor Heating Repair Company London, our qualified engineers work across residential blocks, commercial buildings, and district heating schemes to keep heating and hot water systems running efficiently and reliably.
A heat interface unit (HIU) is used in buildings with communal or district heating networks.
Instead of each property having its own boiler, the HIU acts as the link between the central energy source and the individual dwelling, providing heating and hot water on demand.
HIUs are essential for:
Because of their central role, regular HIU maintenance is critical to ensure consistent performance and to prevent costly breakdowns.
Our HIU contractors provide comprehensive maintenance packages to keep your systems working at peak efficiency.
Our services include:
Without regular servicing, HIUs can lose efficiency, causing higher energy costs, reduced hot water supply, and potential system failures. Regular maintenance by expert contractors not only prevents costly repairs but also extends the lifespan of your unit and ensures compliance with building regulations.
Keeping your Heat Interface Unit running smoothly is essential for reliable heating and hot water, especially in properties connected to district or communal heating networks. As a trusted HIU company London, we provide specialist maintenance, inspection, and repair services designed to keep your system working efficiently all year round. With experienced London HIU engineers on hand, you can count on us for fast response times and expert solutions.
A routine HIU inspection London helps identify faults early and ensures your system is operating at the performance level it should. HIUs contain several important components—plate heat exchangers, filters, valves, sensors and control units—that require regular attention. Without proper HIU maintenance, these parts can become blocked, worn or inefficient, leading to higher energy bills, poor hot water flow or unexpected breakdowns.
Our inspections include full performance testing, internal cleaning, pressure checks, and visual assessments of all key components. Whether you own a single flat or manage multiple properties, regular inspections protect both your heating supply and your budget.
Choosing the right HIU specialists matters. Not all heating engineers are trained to work on heat interface units, which operate differently from standard boilers. Our team is made up of genuine HIU experts with years of hands-on experience repairing, maintaining, and optimising HIUs from all major manufacturers.
We understand the unique demands of district heating networks and tailor our services to suit your property’s specific setup. From modern installations to older systems showing signs of wear, our engineers deliver accurate diagnostics and professional solutions every time.
Our HIU service London packages cover everything you need to keep your system in top condition:
Each service is carried out by highly trained London HIU engineers who understand the importance of detail and reliability.
If your system develops a fault, our dedicated HIU repairs London team provides swift and efficient repair services. Whether you’re dealing with no hot water, pressure drops, a leaking unit or flow rate issues, we can diagnose the problem quickly and deliver long-lasting repairs using high-quality components.
As a full HIU service and repair company, we offer both planned works and emergency callouts for urgent issues.
Property owners, landlords and building managers choose us because:
Whether you need routine servicing, a detailed inspection, or expert repairs, our team is here to help ensure your HIU continues to operate safely and efficiently.
If you are searching for reliable HIU maintenance contractors in London, The Underfloor Heating Repair Company London has the expertise you need. From one-off repairs to long-term servicing contracts, we provide dependable solutions tailored to property managers, landlords, and homeowners.
Get in touch with us today to book an HIU service or request a quote.