Radiators, cylinders and underfloor heating across SE London and Kent
JJB Heating & Cooling installs and upgrades central heating across Dartford, SE London and Kent, including new radiators, unvented hot water cylinders, power flushing and wet underfloor heating. Every job is quoted in writing first and finished with a full system test.
A boiler is only as good as the system it feeds. We design, install and upgrade central heating systems across Dartford, SE London and Kent, from extra radiators and replacements to complete new systems in extensions and renovations. That includes Bexleyheath, Sidcup, Swanley, Orpington, Eltham, Thamesmead and Charlton.
For homes with more than one bathroom, an unvented cylinder such as a Megaflo or Gledhill gives strong mains-pressure hot water to every tap at once. We install them with the right controls and safety devices.
Wet underfloor heating gives even, comfortable warmth with no radiators on the walls. We lay low-profile overlay systems in kitchens, bathrooms and extensions and can check the loops with a thermal camera before the floor goes down.
Cold spots, noisy pipes and slow radiators usually point to sludge in the system. A power flush clears it out and is included as standard with our combi boiler swaps.
A Vaillant system boiler and a Gledhill 210-litre horizontal unvented cylinder installed in a loft, keeping both out of the living space and giving strong mains-pressure hot water.
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New combi, system and electric boilers supplied and fitted across Dartford, SE London and Kent. Vaillant-approved installer.
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Air conditioning supplied and installed for homes across Dartford, SE London and Kent.
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Rewires, consumer units, kitchen electrics and fault finding for homes across Dartford, SE London and Kent.
Learn MoreYes. We install wet underfloor heating, including low-profile overlay systems for kitchens, bathrooms and extensions, and can check the loops with a thermal camera before the floor goes down.
Yes. We install unvented cylinders such as Megaflo and Gledhill, which give mains-pressure hot water to every tap at once.
Cold spots at the bottom of a radiator usually mean sludge has built up in the system. A power flush clears it and restores the heat output.
Yes. We add and replace radiators and run heating into extensions, checking that your boiler can handle the extra load.
All of our labour carries a 12-month workmanship guarantee, and parts are covered by the manufacturer's warranty.