| Business | Phone |
| Richard A Profenno Heating 58 Christy Rd, Portland 4103 | (207) 797-4953 |
| Charlie Burnham Heating Inc Portland 4101 | (207) 828-4886 |
| Christopher Bieber Heating Portland 4101 | (207) 774-5150 |
| Mainely Plumbing & Heating Inc 587 Riverside St, Portland 4103 | (207) 797-4969 |
| Steve Mac Kenzie Heating 74 Gertrude Ave, Portland 4103 | (207) 797-7706 |
| Tim Carland Plumbing & Heating 205 Allen Ave, Portland 4103 | (207) 797-2758 |
| Vincent Heating & Air Cond 111 Greenwood Ln, Portland 4103 | (207) 878-7900 |