Install or Replace a Sewer Main Cost in Keene, NH in 2026
Most Install or Replace a Sewer Main projects in Keene, NH cost between $1,100 and $23,000. The typical price is $5,500.
Sewer main replacement involves excavation, permits and often street restoration.
Keene 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 Keene, NH
Businesses listed on Google near Keene, NH. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Triumph Home Services
4.9(114 reviews)
428 Main St Ste 8, Keene, NH 03431
Keating Plumbing & Heating
4.4(150 reviews)
126 Main St, Marlborough, NH 03455
Monadnock Plumbing, Heating and Air Conditioning LLC
5.0(38 reviews)
72 Water St, Marlborough, NH 03455
Adrian Pinney Plumbing & Heating
3.9(62 reviews)
217 Old Homestead Hwy, Swanzey, NH 03446
Rooter-Man
4.6(18 reviews)
Keene, NH 03431
Lawrence Brothers Plumbing & Heating
3.7(19 reviews)
130 Verry Brook Rd, Winchester, NH 03470