| Southeastern Massachusetts |
| Contractor | Office Location | Phone |
| A Plus Plumbing, LLC | Hanover | (800) 436-8855 |
| A Royal Flush Plumbing & Heating | Brockton | (508) 580-2005 |
| Abell's One Hour Heating & Air Conditioning | N. Scituate | (781) 829-0572 |
| AJR Plumbing & HVAC, Inc. | Avon | (508) 587-9563 |
| All-Temp Systems, Inc. | Milford | (508) 478-0088 |
| Alliance Enterprises, Inc. | Pembroke | (781) 837-0730 |
| Alvin Hollis & Co. Inc. | S. Weymouth | (781) 335-2100 |
| Anytime Plumbing & Heating Inc. | Taunton | (508) 880-2800 |
| Boston Air | Bridgewater | (508) 697-1888 |
| Callahan Air Conditioning & Heating Inc. | N. Andover | (978) 689-9233 |
| Canton Plumbing & Heating Inc. | Canton | (781) 828-7484 |
| Clarke Plumbing & Heating | Duxbury | (781) 934-7800 |
| Costa Heating & Air Conditioning, Inc. | Raynham | (774) 406-1040 |
| Davco Air Conditioning Corp. | Norwood | (781) 769-2303 |
| Deacon Plumbing & Heating Co. Inc. | Stoughton | (781) 344-2541 |
| Don Ranieri Plumbing, Heating & Remodeling | Franklin | (508) 528-8295 |
| Eldridge Plumbing & Heating | Kingston | (781) 585-3492 |
| Feeney & Son Plumbing & Heating | Easton | (508) 238-2966 |
| Garfield Plumbing & Heating | Canton | (781) 575-0944 |
| Gouthro Plumbing Co. Inc. | Brockton | (508) 587-4625 |
| Greeno Plumbing & Heating Inc. | W. Bridgewater | (800) 588-8511 |
| Heating & Air Conditioning Services | W. Bridgewater | (800) 479-4822 |
| Heating Pro’s | Duxbury | (781) 934-4600 |
| HIM Mechanical Systems Inc. | Bridgewater | (508) 697-5000 |
| Home Comfort Control | Wrentham | (508) 384-9379 |
| Hubbard Plumbing & Heating Inc. | Marshfield | (781) 837-6297 |
| James Spearin Heating & Air Conditioning, Inc. | Taunton | (508) 823-1334 |
| Jim Dorsey & Son, Inc. | Taunton | (508) 822-6728 |
| Joe Walsh Plumbing & Heating | Foxboro | (508) 543-3151 |
| Juniper Heating & Air Conditioning Inc. | Brockton | (508) 583-6535 |
| Kingston Sheet Metal Inc. | Kingston | (781) 585-6666 |
| Kushner Plumbing & Heating Contractors | Medfield | (508) 359-8354 |
| Mass State Plumbing & Heating | Rockland | (888) 822-1301 |
| McClaren Heating & Air Conditioning, Inc. | Brockton | (508) 559-6744 |
| Mello Plumbing & Heating | Holbrook | (617) 750-7598 |
| Norcross Plumbing & Heating Co. Inc. | Stoughton | (781) 341-4442 |
| Northeast Plumbing, Heat, Air Conditioning | N. Easton | (508) 238-1865 |
| Northern Comfort Heating & Air Conditioning, Inc. | Bridgewater | (508) 697-7583 |
| Pacini Plumbing | S. Easton | (508) 230-3507 |
| Pierce Refrigeration | W. Bridgewater | (508) 586-1088 |
| R.D. Ferreira, Sr. Plumbing & Heating, Inc. | Randolph | (781) 963-2829 |
| R.J. Heavey Co., Inc. | Walpole | (508) 668-6680 |
| S.G. Harold Plumbing, Heating & AC, LLC | Milton | (617) 696-2400 |
| Stephen H Sera, Inc. | Stoughton | (617) 640-8122 |
| T&J Heating & A/C Inc. | Bellingham | (508) 966-2900 |
| Thomas Galligan Plumbing & Heating | Scituate | (781) 545-1239 |
| Towne & Country Plumbing & Heating | Duxbury | (781) 934-2451 |
| True Heating Corp. | Stoughton | (781) 341-1433 |
| Victory Heating & Air Conditioning Co. Inc. | Bellingham | (508) 966-9858 |
| Vonco Mechanical | Scituate | (781) 545-4006 |
| |
| Western Massachusetts |
| Contractor | Office Location | Phone |
| A.R. Zukowski Plumbing & Heating | W. Springfield | (413) 733-6716 |
| Accurate Mechanical Corp. | W. Springfield | (413) 739-8882 |
| Advanced Heating & Air | Springfield | (413) 746-6882 |
| Allied Heating & Air Conditioning | W. Springfield | (413) 732-5599 |
| AM/PM Plumbing & Heating, Inc. | Hatfield | (413) 247-5502 |
| Ambient Heating & Air Conditioning | Chicopee | (413) 427-3070 |
| Associated Plumbing & Heating | E. Longmeadow | (413) 525-5237 |
| Berkshire Service Experts | W. Springfield | (413) 272-2098 |
| Boulanger's Plumbing & Heating | Easthampton | (413) 527-3240 |
| D'Astous Plumbing & Heating | Easthampton | (413) 296-4763 |
| DB Plumbing & Heating | Westboro | (774) 288-1242 |
| Efficiency Heating & Air Conditioning | W. Springfield | (413) 657-6012 |
| Fuel Services, Inc. | Westfield | (413) 562-0650 |
| Hurley & David, Inc. | Springfield | (413) 732-3141 |
| L.N. King Plumbing, Heating & Air Conditioning, Inc. | Springfield | (413) 233-4918 |
| McNeill Heating & A/C Co., Inc. | W. Springfield | (413) 734-4348 |
| Mike Rollins Plumbing & Heating | Southwick | (413) 732-3555 |
| Richard’s Plumbing & Heating Inc. | Northampton | (413) 585-0291 |
| S.G. Racette Plumbing & Heating | Springfield | (413) 786-6764 |
| Steve's Plumbing & Heating Co. | W. Springfield | (413) 736-4306 |
| Tri-County Plumbing & Heating | E. Longmeadow | (413) 733-6336 |
| Wilson Services Inc. | Northampton | (413) 584-3317 |
| |
| Merrimack Valley |
| Contractor | Office Location | Phone |
| Callahan Air Conditioning & Heating Inc. | N. Andover | (978) 689-9233 |
| Cooling Unlimited | Reading | (781) 944-1030 |
| Correct Temp HVAC | Methuen | (978) 688-8700 |
| David M. Murphy Plumbing, Heating & Gas Fitting, Inc. | Lowell | (978) 458-0481 |
| DB Plumbing & Heating | Westboro | (774) 288-1242 |
| Harvey Air Corp. | Windham, NH | (978) 683-2456 |
| Heating & Air Conditioning Services | W. Bridgewater | (800) 479-4822 |
| Merrimack Valley Corp | Methuen | (978) 689-0224 |
| Paul E Martin Plumbing & Heating, Inc. | Salem, NH | (603) 234-6806 |
| Royal Air Systems, Inc. | N. Reading | (978) 664-5023 |
| S. Jason Lebowitz Co. | Lawrence | (978) 688-1868 |
| Timothy A. Giard Plumbing & Heating | N. Andover | (978) 689-8336 |
| Victory Heating & Air Conditioning Co. Inc. | Bellingham | (508) 966-9858 |