Gas, Heating, Plumbing & Electrical you can trust
Serving Watford and within a 20 mile radius. Boiler servicing & replacement, general plumbing, electrical work and swimming pool heating — all from one qualified, insured team.
Boiler servicing, repairs & replacement
From a routine service to a full new system, all gas work is carried out by our Gas Safe registered engineer (556828). We also carry out landlord gas safety checks for letting agents and private landlords.
Boiler servicing
Annual servicing to keep your boiler safe, efficient and under warranty.
Boiler replacement & installation
Straightforward advice and a clean install when it's time for a new boiler.
Central heating repairs
Diagnosing and fixing no-heat, no-hot-water and radiator problems.
Powerflushing
Clearing sludge and debris to restore heating performance.
Landlord gas safety checks
Annual gas safety certificates (CP12) for rented properties.
Gas safety inspections
Checks and certification for homeowners and landlords.
Radiator installation & repair
New radiators, valves and pipework, fitted or repaired.
Recent gas & heating jobs
Swimming pool heating systems, installed & serviced
We also design, install and maintain heating systems for swimming pools — from pool-specific boilers to heat pump and solar options — so your pool stays at a comfortable temperature for longer in the year.
Pool heat pump installation
Efficient, all-season heating for outdoor and indoor pools.
Pool boiler heating systems
Dedicated gas-fired heating for faster warm-up times.
Solar pool heating
Lower running-cost heating using solar collectors.
Maintenance & servicing
Keeping existing pool heating systems running reliably.
Recent pool heating jobs
General plumbing, done properly
From a dripping tap to a full bathroom refit, we handle plumbing jobs of every size, with clean, tidy workmanship throughout.
Leak detection & repair
Finding and fixing leaks quickly to avoid further damage.
Bathroom installation
Full bathroom fit-outs, from a single fixture to a full refit.
Pipework & repiping
Replacing old or damaged pipework throughout the home.
Blocked drains
Clearing blockages in sinks, baths and drainage runs.
NICEIC approved electrical work
All electrical work is carried out to NICEIC standards (D612151), from small jobs to consumer unit upgrades and full rewires.
Consumer unit upgrades
Modern, safe fuse board replacements.
Full & partial rewires
Rewiring for older properties or renovation projects.
Electrical safety inspections (EICR)
Certified condition reports for homeowners and landlords.
Recent electrical jobs
One trusted call, for gas, heating, plumbing and electrical
Teraheat Ltd is a Gas Safe registered and NICEIC approved contractor covering Watford and the surrounding area. We bring gas, heating, plumbing and electrical work together under one roof, so whether it's a boiler service, a rewire, a new bathroom or a leaking pipe, it's one qualified team to call. We also install and service swimming pool heating systems, and carry out landlord gas safety checks for letting agents and private landlords.
What our customers say
"Teraheat were employed by us to fit a new boiler and underfloor heating system as part of a major extension project. The work was completed to a highly professional standard and was linked painlessly into our existing smart home system. The team were excellent in terms of communication and tidiness throughout the work. We cannot recommend them highly enough."Mark & Bernadette QuinnBoiler & underfloor heating installation, Hemel Hempstead
"Had an issue with my boiler — no hot water or heating — but thankfully, Vasile came to the rescue. He was brilliant, diagnosing and fixing the issue. His professionalism and efficiency were impressive. Highly recommend!"SueEmergency boiler repair
"I was very impressed with the work done by Vasile from Teraheat, he put a brand new whole system in place at our house. A mega flow with dual water cylinders, new Vaillant wall-mounted boiler, extensive copper pipe work. He was very intricate and really cared about the details. Vasile was a pleasure to have working for us and a real gentleman, very impressed and would highly recommend!"Benjamin RobertsFull heating system installation
Contact Teraheat
Call or text — emergency callouts available
We aim to reply within one working day
See full list of areas below
Available for no heat / no hot water situations
Watford & within a 20 mile radius
We're based in Watford and cover the surrounding towns and villages, including: