| Business | Phone |
| Madden Plumbing & Heating Co 2289 E Main St, Quincy 95971 | (530) 283-1605 |
| Mc Lean's Plumbing 164 Leonard Ave, Quincy 95971 | (530) 283-2445 |
| Mc Connell Construction 889 Bresciani Cir, Quincy 95971 | (530) 283-2874 |
| Mountain Plumbing Quincy 95971 | (530) 283-2752 |
| Powell Plumbing 147 3rd St, Quincy 95971 | (530) 283-0572 |
| S & S Plumbing 240 Magaw Ln, Quincy 95971 | (530) 283-3470 |