Heating care built on twenty years of expertise.
Trusted gas engineering across Addlestone and Surrey. From annual servicing to hob safety checks and power flushes — honest advice, skilled workmanship.
Professional Services
Every job personally carried out by Stewart Hardy — no subcontractors.
Boiler Service
Manufacturer-standard annual service by a Gas Safe engineer.
Boiler Repair
No heat or hot water, leaks and error codes diagnosed and fixed.
Gas Cookers & Hobs
Cooker and hob servicing, repair and safe installation.
Gas Fire Service
Full service, flue and spillage testing, plus repairs.
Daikin Heat Pumps
Air source heat pump servicing and repair in Surrey.
Power Flushing
Remove sludge, restore heat output across every radiator.
Landlord CP12
Same-day gas safety certificates emailed to you and tenant.
Smart Controls
Hive, Nest, Tado° and Honeywell — properly fitted.
A personalised service from Stewart Hardy.
Hardy Heating is run personally by Stewart Hardy, a Gas Safe registered engineer with over 20 years of experience — including ten years as a British Gas engineer. Every quote, every service and every repair is carried out by Stewart himself — no call centres, no rotating subcontractors, just one experienced engineer who knows your boiler and your heating system.
As a Glow-worm Accredited Installer, Stewart is factory-trained on the full Glow-worm range and can offer extended manufacturer warranties on new installations.
Areas Stewart covers
Based in Addlestone, covering a 15-mile radius including Egham, Chertsey, Staines-upon-Thames, Chobham, Woking, Maidenhead, Weybridge, Ottershaw, New Haw, Woodham, Byfleet, West Byfleet, Shepperton, Walton-on-Thames, Virginia Water, Sunbury-on-Thames, Windsor, Ashford, Lightwater and all surrounding Surrey villages. Gas Safe boiler engineer for Runnymede, Elmbridge, Woking and Spelthorne.
“Reliable, trustworthy and a very knowledgeable heating engineer. Stewart identified the problem, replaced pipework where a blockage had occurred and fitted a magnetic filter. Very fair with pricing. Highly recommended!”
Verified customer
Trustpilot review
“Stewart has serviced our Vaillant boiler for years. When a flexible pipe split and water was gushing, he came out straight away despite being off ill and fixed it. Totally reliable, prompt and excellent service.”
Long-standing customer