By city
London 16Leeds 10Milton Keynes 9Glasgow 9Swindon 8Bradford 8Cardiff 8Warrington 8Edinburgh 8Nottingham 8Birmingham 7Preston 7Cambridge 7Manchester 7Norwich 7Newcastle upon Tyne 7Liverpool 6Stockport 5Reading 5Sheffield 5Hull 5Leicester 5Bedford 5Brighton 5
| Name | Category | Address | City | Opening times |
|---|---|---|---|---|
| Comcare Heating Solutions - Commercial Heating Services | Mechanical contractor | Unit 18, North Mersey Business Centre, Woodward Rd | Liverpool | Mon–Fri 08:00–18:30 |
| Compton & Parkinson Ltd | Central heating service | The Temple, Offices 2&3, Temple End | Cambridge | Mon–Fri 09:00–17:00 |
| Concord Plumbing & Heating | Plumber | Sandfield Cres | Warrington | Mon–Fri 08:00–16:00 |
| Conroy Plumbing, Heating & Renewables Bolton | Plumber | 14 Prestbury Rd | Bolton | Mon Open 24 hours |
| Contract Heating | Gas engineer | 2B Bankhead Crossway S | Edinburgh | Mon–Fri 09:00–17:00 |
| Cor-Heat Plumbing And Heating Ltd | Gas engineer | Unit 4, Seaton Park, 36 William Prance Rd | Plymouth | Daily Open 24 hours |
| Corstorphine Gas Services Edinburgh | Central heating service | 100F Saughton Rd N | Edinburgh | Mon–Fri 08:00–16:30 |
| Croft Heating Ltd | Central heating service | 50 Browmere Dr | Warrington | Mon–Fri 08:00–18:00 |
| CTD Plumbing & Heating Limited | Gasfitter | 44 Carlton Ln | Leeds | Mon–Fri 09:00–16:00 |
| Cubic Gas LTD | Gas installation service | 14 Woodland Cres | Leeds | Mon 08:00–17:00 |
| Custance & Son Ltd | Central heating service | 4 Keelan Cl | Norwich | Mon–Fri 08:00–17:00 |
| D C Heating and Plumbing Sheffield | Gas engineer | 340 Hastilar Rd S | Sheffield | Thu 08:00–17:00 |
| D&L Plumbing & Heating Services Ltd | Plumber | 2 Bedale St | Leeds | Mon–Fri 08:00–17:00 |
| Dante Group | Air conditioning system supplier | 212 Europa Blvd | Warrington | Daily Open 24 hours |
| DecoHeat | Tienda de chimeneas | Merthyr Rd | Cardiff | Mon–Fri 09:00–17:00 |
| DPS Calor Gas Supplies | Gas company | 1 Denzil Rd | London | Thu 08:00–16:00 |
| DripDry Gas Heating & Plumbing | Gas company | 17 Woodland Way | Brighton | Mon–Fri 08:00–17:00 |
| Ecotech Yorkshire | Air conditioning contractor | Aizlewoods Mill, Nursery St | Sheffield | Mon–Fri 09:00–17:00 |
| Edinburgh HomeForce | Electrician | 20 Forth St | Edinburgh | Mon–Fri 08:30–17:00 |
| Elswick DIY & SK Gas Engineering | DIY store | 341 Elswick Rd | Newcastle upon Tyne | Mon–Tue 09:00–17:00 |
| Enlan Ltd | Property maintenance | Leaze Barn, Hook St | Swindon | Mon–Fri 08:00–17:00 |
| Entire Group Ltd | Central heating service | The Grange, 20 Market St | Cambridge | Mon–Fri 08:30–17:00 |
| Envirowarm Services Ltd | Central heating service | 7 Sussex Cl | Hull | Mon 11:00–14:00 |
| Express Heating Co Ltd | Industrial engineer | Broughton Market | Edinburgh | Mon–Thu 08:00–17:00 |
| Fitz Boilers & Plumbing Ltd | Central heating service | 44 Hillside | Brighton | Mon–Fri 08:00–20:00 |
| Freshwater Marine Services | Marine engineer | 45 Norwich Rd | Norwich | Mon–Fri 09:00–17:30 |
| FSG Property Services Ltd | Property maintenance | Unit 2B Blackhill Dr | Milton Keynes | Mon 09:00–17:00 |
| G & N Plumbing Ltd | Gas engineer | 57 The Fairway Emmer Green | Reading | Daily Open 24 hours |
| G Spence Ltd | Plumber | 159 Balby Rd | Doncaster | Mon–Fri 08:00–17:00 |
| G.E. Harding & Sons Ltd | Gas engineer | Drivers Wharf, Northam Rd | Southampton | Mon–Fri 08:00–17:00 |