Install or Replace a Sewer Main Cost in Hampton, NH in 2026
Most Install or Replace a Sewer Main projects in Hampton, NH cost between $1,100 and $23,000. The typical price is $5,500.
Sewer main replacement involves excavation, permits and often street restoration.
Hampton prices track the national average closely. Costs here are close enough to the national picture that the adjustment barely moves the number.
What drives the price
- Accessible fixture swap versus opening walls or slab
- Pipe material — copper, PEX or cast iron replacement
- Emergency versus scheduled work
- Permit and inspection requirements
Usually included
- Licensed plumber labour
- Pipe, fittings and standard fixtures
Usually extra
- Drywall and finish repair
- Fixtures you supply
- Municipal tap or sewer connection fees
Plumbers in Hampton, NH
Businesses listed on Google near Hampton, NH. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Heritage Home Service
4.9(2,567 reviews)
179 Lafayette Rd, North Hampton, NH 03862
128 Plumbing, Heating, Cooling & Electric
4.9(126 reviews)
14 Boynton Ln, Seabrook, NH 03874
Dan Dunn Plumbing & Heating
5.0(95 reviews)
191 Lafayette Rd, Seabrook, NH 03874
Arakelian Plumbing & Heating
4.6(59 reviews)
102 Tide Mill Rd Unit 6, Hampton, NH 03842
Lighthouse Plumbing,Heating and Air Conditioning Co.L.L.C
5.0(11 reviews)
16 Bradstreet Rd, Hampton, NH 03842
Mc Nally & Sons Plumbing & Heating
5.0(2 reviews)
11 Ann's Ln, Hampton, NH 03842