| Priestley & Son | 01327 702314 | | 84 Warwick Street, Daventry, NN11 4AL |  Map & Directions |
| Towcester Plumbing & Heating | 01327 353450 | | 48 St. Lawrence Road South, Towcester, NN12 6DR | | Map & Directions |
| S A C | 07771 927094 | | 1 Hillcrest Road, Gayton, Northampton, NN7 3HG | | Map & Directions |
| B G Plumbing | 01933 674642 | | 24 Chatsworth Drive, Wellingborough, NN8 5FB | | Map & Directions |
| J C Walton | 01536 790971 | | 23 Bridle Way, Cransley, Kettering, NN14 1PT | | Map & Directions |
| C & B Services | 01604 784652 | | 15 Thurspit Place , Northampton, NN3 5AN | | Map & Directions |
| Clarges | 01604 491150 | | Booth House, 1 Booth Lane North, Northampton, NN3 6JE | | Map & Directions |
| Roy's | 01604 858081 | | 40 Courteenhall Road, Blisworth, Northampton, NN7 3DD | | Map & Directions |
| County Heating & Plumbing | 01280 701881 | | 19b Manor Road, Brackley, NN13 6AJ | | Map & Directions |
| Domestic Heating Design Ltd | 01536 522861 | | 38 Ivy Road, Kettering, NN16 9TH | | Map & Directions |
| Blue Water Plumbing Services | 01536 790831 | | 55 Northampton Road, Broughton, Kettering, NN14 1NR | | Map & Directions |
| Reynolds & Spademan | 01933 224008 | | 26 Cross Road, Wellingborough, NN8 4AT | | Map & Directions |
| Brown's Plumbing | 01536 523365 | | 1 St. Anthonys Road, Kettering, NN15 5HT | | Map & Directions |
| J Wilson | 01832 732837 | | 12 High Street, Woodford, Kettering, NN14 4HF | | Map & Directions |
| A Pickering | 01604 714796 | | 188 Harborough Road, Northampton, NN2 8DJ | | Map & Directions |
| Anderson Heating & Plumbing | 01604 459093 | | 14 Isham Close, Kingsthorpe, Northampton, NN2 7AQ | | Map & Directions |
| Advance Plumbing | 01604 414668 | | 20 Whiteheart Close, Little Billing, Northampton, NN3 9GA | | Map & Directions |
| Terrawarm | 01280 706700 | | The Bungalow, Mill Lane , Westbury, Brackley, NN13 5JS | | Map & Directions |
| Keith Barrow | 01604 811515 | | 4a The Square, Earls Barton, Northampton, NN6 0NA | | Map & Directions |
| Buckby Heating & Plumbing | 01327 844009 | | 1 Ashmore, Long Buckby, Northampton, NN6 7RT | | Map & Directions |
| Mid-Shires Domestic Services | 01536 722323 | | 6 Church Street, Burton Latimer, Kettering, NN15 5LU | | Map & Directions |
| Glenn A Parker | 01536 762459 | | 49 Braybrooke Road, Desborough, Kettering, NN14 2LH | | Map & Directions |
| Acadian Maintenance Ltd | 01604 862755 | | 36 Hoe Way, Roade, Northampton, NN7 2NG | | Map & Directions |
| Taylor Plumbing | 01604 454911 | | 63 Ethel Street, Northampton, NN1 5ER | | Map & Directions |
| T F Bone Plumbing Ltd | 01933 358239 | | 1 Farnham Drive, Rushden, NN10 9JH | | Map & Directions |
| Wellingborough Building Co Ltd | 01933 279907 | | 160 Midland Road, Wellingborough, NN8 1NG | | Map & Directions |
| J L Smith & Son | 01933 223838 | | 37 The Ridge, Great Doddington, Wellingborough, NN29 7TT | | Map & Directions |
| Ryan's | 01933 350355 | | 8 Ullswater Close , Higham Ferrers, Rushden, NN10 8NP | | Map & Directions |
| Peter Braines | 01536 481942 | | 12 Blandford Avenue, Kettering, NN16 9AR | | Map & Directions |
| Townsend W J | 01327 830661 | | 21 Leys Road, Pattishall, Towcester, NN12 8JY | | Map & Directions |
| Mick Pennock & Chris Hampton | 01536 744432 | | 30 Denmark Close, Corby, NN18 9EH | | Map & Directions |
| Ivor Gammons | 01536 516551 | | 9 Farnborough Close, Kettering, NN15 6GA | | Map & Directions |
| D Paragreen & Son | 01933 312145 | | Walnut Grange, Hinwick, Wellingborough, NN29 7JB | | Map & Directions |
| Lawrence Underwood | 01933 623229 | | 32 Needham Road, Stanwick, Wellingborough, NN9 6QU | | Map & Directions |
| Domestic Heat Cover Ltd | 01933 624190 | | 2a Newtown Road, Raunds, Wellingborough, NN9 6LX | | Map & Directions |
| T A Bass | 01604 585594 | | The Lodge, Bants Lane, Northampton, NN5 6AH | | Map & Directions |
| Martin Burrows | 01604 717548 | | 247 Hazeldene Road, Northampton, NN2 7NZ | | Map & Directions |
| Shaun Cooper | 01933 682999 | | 59 Hayden Avenue, Finedon, Wellingborough, NN9 5ES | | Map & Directions |
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