| Business | Phone |
| Boston Mechanical Svc 655 Columbia Rd, Dorchester 2125 | (617) 971-6000 |
| P H Mechanical Corp 161 Granite Ave, Dorchester 2124 | (617) 282-8855 |
| Kjs Mechanical 19 Elm St, Dorchester 2122 | (617) 593-6211 |
| Jay Mac Donald Mechanical Co 2 Saint Brendan Rd, Dorchester 2124 | (617) 474-2200 |