NEXTHERM provides specialist HIU, boiler, heating, MVHR and plumbing services across Barnet, Hertsmere and North London. Our work includes servicing, fault diagnostics, breakdown repairs, installation and maintenance for modern residential properties and small commercial premises.
Our services cover gas and electric boilers, Heat Interface Units (HIUs), central heating systems, hot water systems, smart heating controls, plumbing, and Mechanical Ventilation with Heat Recovery (MVHR), including systems commonly found in modern developments and high-performance homes.
We prioritise accurate fault-finding, reliable attendance, and clean, accountable workmanship so systems perform as intended and property managers or homeowners can rely on clear outcomes.
Work is carried out with the standards expected in managed properties and private homes alike — clear communication, tidy workmanship, and practical solutions that prioritise system performance and long-term reliability.
Recent feedback from clients reflects the reliability, workmanship and professionalism expected from NEXTHERM.
Read more reviews on Google.
“Excellent quality of work and service. Kav has fixed pipework, boiler/heating and radiator issues for us. Extremely professional and polite. Highly recommended.”
Franklyn Martin · Google Review
“We had a problem with hot water for months that numerous plumbers could not resolve. Kaveh identified the problem within minutes, ordered the part and fixed it. He was professional, efficient and polite throughout. Would definitely recommend.”
Robert David · Google Review
NEXTHERM also works alongside landlords, property managers and managing agents where dependable technical support is required.
Additional plumbing, bathroom and kitchen work can also be undertaken upon request.
