| Business | Phone |
| B P Plumbing & Heating Merrimack 3054 | (603) 424-3700 |
| Bradish Plumbing & Heating 21 Northwood Dr, Merrimack 3054 | (603) 424-9562 |
| C B Plumbing & Heating Corp 82 Daniel Webster Hwy, Merrimack 3054 | (603) 598-8900 |
| Chartier Co Inc 390 Daniel Webster Hwy, Merrimack 3054 | (603) 424-3754 |
| D & R Plumbing Heating & Ac Merrimack 3054 | (603) 883-1772 |
| Dabilis Plumbing & Heating 5 Thornton Rd W, Merrimack 3054 | (603) 883-0666 |
| Dan Couturier Plumbing & Htg 1509 Columbia Cir, Merrimack 3054 | (603) 424-4513 |
| Dave Pollock Plumbing 18 Danbury Dr, Merrimack 3054 | (603) 429-2748 |
| Granite State Mechanical Svc 598 Daniel Webster Hwy, Merrimack 3054 | (603) 424-8258 |
| Spirit Mechanical Contr Inc 515 Daniel Webster Hwy, Merrimack 3054 | (603) 429-3260 |
| Lortie Brothers 35 Camp Sargent Rd, Merrimack 3054 | (603) 429-4249 |
| Reaction Plumbing & Heating 161 Bedford Rd, Merrimack 3054 | (603) 424-0581 |
| Pal Plumbing & Heating 398 Daniel Webster Hwy, Merrimack 3054 | (603) 424-7673 |
| Norman Dubois Plumbing & Htg Merrimack 3054 | (603) 424-5064 |