| Business | Phone |
| Concord Gas Heating Svc 74 Hall St, Concord 3301 | (603) 224-7730 |
| On Demand Plumbing & Heating 2 Industrial Park Dr # 13, Concord 3301 | (603) 227-9995 |
| Phillips Plumbing & Htg Inc 49 District 5 Rd, Concord 3303 | (603) 224-1890 |
| R A Desmarais & Son Inc 7 West St, Concord 3301 | (603) 224-9505 |