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 |
|---|---|---|---|---|
| Neil McGregor Property Services Ltd | Building firm | Unit 10, Brunswick Park Industrial Estate | Newcastle upon Tyne | Mon–Fri 08:00–16:30 |
| Nia-Con Ltd | Plumber | 1 Floor Well House Mill, Main St | Bradford | Mon–Fri 09:00–16:30 |
| Norfolk And Suffolk Services Ltd | Gas engineer | 28 Granary Cl | Norwich | Daily Open 24 hours |
| Norfolk Trusted Trader | Council | County Hall, Martineau Ln | Norwich | Mon–Fri 09:00–17:00 |
| Nottingham Catering Engineers Ltd | Gas engineer | 8 Valley Rd | Nottingham | Mon 08:30–18:00 |
| Nottingham Heating and gas services | Gas engineer | 24 Harvest Cl | Nottingham | Mon–Tue 07:30–18:00 |
| NowServe Plumbing + Heating | Plumber | Dowding Ave | Cambridge | Mon–Sat 07:00–00:00 |
| Nu Age Plumbing & Heating Coventry | Air conditioning contractor | Unit 7a Kingswood Cl | Coventry | Daily Open 24 hours |
| O'Hara Services Ltd | Housing development | 15 Union Rd | Bradford | Mon 07:30–16:00 |
| Old Swan Gas Services | Gas engineer | 5a Ruthven Rd | Liverpool | Mon Open 24 hours |
| Palm Yorkshire Ltd | Mechanical contractor | Unit 5, Swinnow Court, 621 Stanningley Rd | Leeds | Mon–Fri 07:30–16:30 |
| Pipe Guys (Bham ) Ltd | Gas engineer | 39b Marlborough Rd | Birmingham | Daily Open 24 hours |
| Plumber On Call | Plumber | 206 Dyke Rd | Brighton | Daily Open 24 hours |
| Plumbox | Plumber | 119, Norman Industrial Estate Cambridge Rd | Cambridge | Thu 08:00–17:00 |
| Premier Gas Services | Gas company | Unit 9, Elm Court | Coventry | Mon–Fri 08:30–17:00 |
| Pure Group Services Ltd | HVAC contractor | Technology House, Michigan Dr | Milton Keynes | Mon–Fri 08:00–17:00 |
| Rapid heating & plumbing Ltd | Gas engineer | 1 Hardman Rd | Stockport | Mon–Fri 09:00–19:00 |
| Rene Plumbing & Heating | Gas engineer | 54 Waterloo Rd | Bedford | Daily Open 24 hours |
| RJ Martindale Heating & Cooling | Gas engineer | Unit A, Pearlbrook Industrial Estate, Chorley New Rd | Bolton | Mon–Fri 08:00–17:00 |
| RJ Pearce Plumbing & Heating | Plumber | 31 Furze Cl | Swindon | Mon–Fri 08:00–16:30 |
| Roy Lee Plumbing & Heating Limited | Gas installation service | 49 Biddle Rd | Leicester | Mon–Tue 08:00–17:30 |
| S P Contractors Limited | Gas engineer | Templegate Ave | Leeds | Daily 08:00–18:00 |
| Safe Heating Solutions ltd | Plumber | Wibben Cl | Derby | Thu 08:00–17:30 |
| Saphire Group UK Ltd Mechanical and Electrical | Mechanical contractor | Blackworth Industrial Estate, Unit 24 | Swindon | Mon–Fri 08:00–16:30 |
| Select Engineer Limited | Gas engineer | Unit 40, Camberwell Business Centre, 99-103 Lomond Grove | London | Daily Open 24 hours |
| SGH Catering & Bakery Engineers Ltd | Bakery equipment | Ste 6, Third Floor, St Georges Works, 51 Colegate | Norwich | Mon–Fri 09:00–17:00 |
| Shield Heating & Plumbing | Gas engineer | 16 Triner Pl | Stoke-on-Trent | Daily Open 24 hours |
| Smartflow Gas Services | Plumber | Office 1, 9 Newton Pl | Glasgow | Mon–Sat 08:00–17:00 |
| SmartFlow Services - Water Supply & Plumbing Services | Water works | Unit 8, Sheaf Gardens Industrial Estate, Duchess Rd | Sheffield | Mon–Fri 08:00–17:00 |
| SMC Plumbing and Heating | Plumber | 41 Llanon Rd | Cardiff | Mon–Fri 08:00–17:00 |