Install or Replace a Sewer Main Cost in Dover, NH in 2026
Most Install or Replace a Sewer Main projects in Dover, NH cost between $1,200 and $23,000. The typical price is $5,500.
Sewer main replacement involves excavation, permits and often street restoration.
Labour and materials in Dover run about 3% above the national average. These figures are adjusted for that, so they are not the national average you will find elsewhere.
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 Dover, NH
Businesses listed on Google near Dover, NH. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Kenco Plumbing & Drains
4.9(267 reviews)
128 Green View Dr unit 14, Rollinsford, NH 03869
High Ground Service Pros - Plumbers Electricians & HVAC Technicians
4.9(151 reviews)
418 Dover Point Rd Unit 3, Dover, NH 03820
Hart Plumbing,Heating and air-conditioning
4.3(87 reviews)
165 Industrial Pk Rd, Dover, NH 03820
Martel Plumbing, Heating & Air Conditioning Inc
4.7(57 reviews)
59 Old Rochester Rd, Dover, NH 03820
P.J. Labrie & Sons
4.4(43 reviews)
350 NH-108, Somersworth, NH 03878
Cochecho Plumbing & Heating
4.7(13 reviews)
PO Box 764, Dover, NH 03821