Top-rated sewer main install, replace or repairers.

Get matched with top sewer main install, replace or repairers in Dover, NH

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Sewer main install, replace or repairers in Dover

Avatar for Mr. Rooter Plumbing & Heating
Mr. Rooter Plumbing & Heating
3.9(
354
)

Serving Dover, NH and surrounding areas

Approved

In business since 1995

Emergency services offered

Warranties offered

"Thank you to Keith who promptly called the first night I made the inquiry to Sandi who arranged everything to Eugene and Ryan who came out to repair leaking pipes on the water filtration system and replace the kitchen faucet on a Saturday to accommodate my schedule! They were very kind and professional. Eugene and Ryan did an amazing job. They had to cut out and replace brass fittings and pex piping, replace the shut-off valve and replace the kitchen faucet. They know what they re doing and make a great team! I am very pleased with the results! I consider it a blessing to have met them and done business with the wonderful people who are part of Mr. Rooter!"
20 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Heritage Home Service
Heritage Home Service
4.2(
1,355
)

Serving Dover, NH and surrounding areas

Approved (Corporate)

In business since 1988

Emergency services offered

Warranties offered

"Rick addressed all my concerns. He quickly replaced the part in the toilet. He tightened the shower faucet and cleared the drains. He left the bathroom clean. He was very courteous and answered all of my questions."
Golf Tournament
Water quality team
HVAC tech
Electrical team
Bryan, electrician

+24

203 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Derry Plumbing & Heating
Derry Plumbing & Heating
3.7(
43
)

Serving Dover, NH and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Once again Derry Plumbing has met all my expectations for quality work and complete professional service. Mike and Christian just removed a tub unit and replaced with a walk-in shower unit. They were courteous, answered all my questions and kept everything spotlessly clean every day, I've used them for years and will continue to do so and will recommend them to friends!"
Rinnai install
Designer shower
Drain line
Showroom shower/tub stall
Faucet fixtures

+2

Response time9 hrs
Response rate86%
Recommended by46%of homeowners
Avatar for Coy Plumbing & Heating
Coy Plumbing & Heating
5.0(
8
)

Serving Dover, NH and surrounding areas

In business since 2024

Free estimates

Emergency services offered

"Mitchell was very professional and great at the work he’s done on my 2 homes. I’ve had 2 bathroom remodels. Funace and hot water heater replaced. Put an expansion water tank on one of my homes. Hooked up my water for my new refrigerator and dishwasher. Have not had any issues with his work. Highly recommend."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+4

Response time2 days
Response rate100%
Recommended by87%of homeowners
Loudon Mechanical
4.7(
18
)

Serving Dover, NH and surrounding areas

In business since 2018

Free estimates

Credit card accepted

Loudon Mechanical, is one of New Hampshire's premiere residential and commercial licensed plumbers. We have successfully been providing quality plumbing services to local homeowners and businesses for over a decade. We specialize in an array of expertise for all your custom residential and commercial plumbing needs. We will treat your property with the same degree of care and consideration that we utilize when working on our own personal projects. We pride ourselves upon honesty, integrity, and attention to detail, ensuring that each and every project not only meets, but exceeds expectations. We are strongly focused upon safety, quality control, and top notch craftsmanship.

Response time1 day
Recommended by90%of homeowners
Avatar for Brother Sons Excavation
Brother Sons Excavation
5.0(
6
)

Serving Dover, NH and surrounding areas

In business since 2016

Brother sons Excavation has been in service for 10 years our family team specializes in multiple high quality services.\nPatios\nBlock walls \nWalkways \nGranite curbing \nYard enhancements \nHydro seeding\nDemolition\nHouse lots \n Excavation \n

Patios Project
Pool filled in wall built with hydro seeding
Driveways - Asphalt Project
Driveways - Asphalt Project
Patios Project

+69

Recommended by100%of homeowners
Avatar for Primary Plumbing, LLC
Primary Plumbing, LLC
5.0(
3
)

Serving Dover, NH and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"It was a pleasure to work with this company! The plumber that came out to do the plumbing on our entire kitchen remodel was always on time, had a great work ethic, always had a smile on, and always asked what we wanted to do about specifics when there were different ways we could do things. (For instance if we wanted our kitchen sink faucet to match our outlet covers, they even asked us if we would be installing a dishwasher and a garbage disposal so that the pipe sizing was correct because the contractor we had hired would show up when he felt like it) The small details they covered are what made it a very pleasant experience. Any time we had questions they were willing to answer. They went above and beyond what other plumbing companies have done for us in the past! We are recommending them to friends and family, and anyone else who needs any plumbing work done! We are about to book them to do our bathroom remodel as well!"
Response time1 day
Recommended by100%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)

Serving Dover, NH and surrounding areas

In business since 1971

Credit card accepted

"On all of the replacements or repairs there was a time period of 1 -3 weeks for the repairman. They were all professional . You have to read the contract , I missed the electric part and had to pay for it myself so read your warranty ."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by65%of homeowners
CPS Plumbing, Heating & Construction, LLC
5.0(
2
)

Serving Dover, NH and surrounding areas

In business since 1978

Free estimates

Credit card accepted

We have over 40 years of experience in the business. Here at CPS Plumbing & Heating, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you educated as we can on your particular task or project. We look forward to earning your business!

Response time2 days
Recommended by100%of homeowners
Showing 1-10 of 16
FAQs for sewer main install, replace or repair projects in Dover, NH

When installing a sewer line, you should consider extra costs like tree removal, driveway repairs, or patio resurfacing. Hiring a professional plumber is essential, and you may need additional specialists if landscaping or heavy excavation is involved. Addressing these potential extras up front helps ensure accurate budgeting and prevents sudden cost overruns.

To calculate the length of sewer piping you need, measure the distance from your house to the main sewer line, adding the depth of the city main to this distance. Be sure to account for any obstacles like tree roots or utility lines that may require additional piping.

City sewer lines are installed at a lower elevation to prevent unwanted backflow and water damage. This lower positioning ensures enhanced performance and long-term safety, meeting all technical and safety standards.

With trenchless methods, a plumber inserts a smaller pipe within the existing plumbing, avoiding full excavation. It can be more cost-effective and less disruptive than traditional methods, but it's not suitable for all homes.

Yes, you must secure permission from your local water authority before connecting to a public sewer line. This approval ensures your connection meets all regulatory requirements.

Sewer lines are buried between 18 inches and 8 feet deep, with most systems placed between 18 and 30 inches. In colder regions, pipes are set deeper to remain below the frost line.

The Dover, NH homeowners’ guide to sewer main install, replace or repairs

From average costs to expert advice, get all the answers you need to get your job done.