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.
Annual Boiler Service
Manufacturer-standard service by a Gas Safe engineer.
Power Flushing
Remove sludge, restore heat output across every radiator.
Landlord CP12
Same-day gas safety certificates emailed to you and tenant.
Central Heating
New systems, radiator upgrades and pipework in Surrey.
Hot Water Cylinders
G3-qualified unvented cylinder install & servicing.
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 Weybridge, Chertsey, Ottershaw, New Haw, Woodham, Byfleet, West Byfleet, Shepperton, Walton-on-Thames, Woking, Egham, Virginia Water, Sunbury-on-Thames 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