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Top-Rated Toilet pros in Dover - Updated Nov 2026

Avatar for Sgt. Smith's Drain Cleaning Services
Sgt. Smith's Drain Cleaning Services
4.9(
101
)
Drain Clog or Blockage - Clear

Serving Dover, NH and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"When I first called someone answered the phone. I got an idea on cost and said I had others to check on. I placed calls to 7 other plumbers and none of them got back to me. I called Sgt. Smith back and asked if they could do the job. They said yes and came the same afternoon. I was VERY IMPRESSED with the owner who came to do the job. He was very professional and let me know every step of the project he was doing to unclog the drain problem I had. I can't say enough of how well I was treated and his first rate customer service. I would highly recommend Sgt. Smith drain cleaning service to one and all."
Our work
Our work
Our work
Our work
Camera

+3

Response time2 hrs
42 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Cutting Edge Plumbing, LLC
Cutting Edge Plumbing, LLC
5.0(
15
)
Faucets, Fixtures and Pipes - Repair or Replace

Serving Dover, NH and surrounding areas

Approved

In business since 2020

Credit card accepted

Customers say: Quick response

"Dustin was very professional, and knowledgeable on everything concerning plumbing. He installed the shower, sink and toilet hook-ups as well as advice and information on the existing fixtures in the house. A pleasure to work with and I look forward to hiring him again for future projects."
Drain Cleaning
Kitchen Sink Drain Repipe
New Pop Up Assembly with new P Trap and Clean out
New Softening System
Kitchen Sink Drain Repipe

+41

Response time7 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Bourne Family Plumbing, LLC
Bourne Family Plumbing, LLC
4.8(
12
)
Faucets, Fixtures and Pipes - Repair or ReplaceFaucets, Fixtures and Pipes - Repair or Replace - For Business

Serving Dover, NH and surrounding areas

Approved

Free estimates

Credit card accepted

"I had a great experience with this plumber! He arrived right on time and was very professional and friendly from the start. I had a leak in the plumbing in the wall between the bathroom and the bedroom and he took the time to explain exactly was going on. He even went under the house (in the cold and dark) to inspect the issue further and took pictures so I could clearly see the problem myself. He explained the repair in a way that was easy to understand and fixed the leak quickly ad professionally. I really appreciated his honestly, communication and the quality of his work. Everything is working perfectly now! I definitely would recommend him and would happily call and refer him if I ever need a plumber's help!!"
project photos
project photos
project photos
project photos
project photos

+14

5 neighbors recently requested a quote
Avatar for Barrington Solutions Plumbing & Heating LLC
Barrington Solutions Plumbing & Heating LLC
4.9(
17
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - ClearFaucets, Fixtures and Pipes - Repair or Replace - For Business

Serving Dover, NH and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

Barrington Solutions is the premier plumbing and HVAC specialist for new construction and major residential builds throughout New Hampshire's Lakes Region. Built on a foundation of elite technical expertise, strict project timelines, and clear communication, we partner with builders, contractors, and homeowners to engineer and install flawless mechanical systems from the ground up.While we provide full-service plumbing, high-efficiency heating, and advanced cooling solutions for existing properties, our true passion and specialty lie in rough-in plumbing, complete system design, and the seamless integration of modern heat pumps, boilers, and mini-splits for new homes. We treat every job site with total professionalism, ensuring your project stays on schedule, on budget, and up to code. Contact Barrington Solutions today to bring top-tier mechanical craftsmanship to your next build.

Granite Ridge
Brook hill development
Sanborton
Derry
2.5 bathroom modular

+39

33 neighbors recently requested a quote
Avatar for Heritage Home Service
Heritage Home Service
4.2(
1,356
)
Drain Clog or Blockage - Clear

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

126 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Derry Plumbing & Heating
Derry Plumbing & Heating
3.7(
43
)
Drain Clog or Blockage - ClearFaucets, Fixtures and Pipes - Repair or ReplaceFaucets, Fixtures and Pipes - Repair or Replace - For Business

Serving Dover, NH and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"I hired Derry Plumbing and Heating to come to my house to do some work in the bathroom. They were extremely professional, polite, and very reasonably priced. The owner, Dave, was very professional, knowledgeable, and was able to answer all my questions. The technician that came to my house was very respectful of my property and did an amazing job. I would highly recommend Derry Plumbing and Heating for any plumbing you need, and I will definitely use them in the future."
Rinnai install
Designer shower
Drain line
Showroom shower/tub stall
Faucet fixtures

+2

Response time10 hrs
Response rate98%
9 neighbors recently requested a quote
Avatar for Adams Services
Adams Services
5.0(
2
)
Drain Clog or Blockage - Clear

Serving Dover, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"We hired Josh to replace our leaky kitchen faucet. He was very efficient and affordable. Our new kitchen faucet was replaced quickly with no mess for us to clean up. It looks beautiful and works great. No leaks. I definitely would recommend Adams plumbing for all your plumbing needs."
Kitchen sink/faucet
10 neighbors recently requested a quote
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Toilets FAQs, answered by experts

Yes, you should screw your flange to the subfloor, including cement. The best way to get this done is to predrill holes into the concrete using a hammer drill and a ¼-inch concrete bit. Be careful when you’re ready to bolt your flange down, as you can accidentally crack it. You can avoid this issue by not installing the screws too deep. Or, you can opt for a flange with a stainless steel ring so you don’t have to worry about cracking the plastic.

Some older homes have toilets in the basement to combat sewage backups. This type of toilet, also known as a Pittsburgh potty, acted as a safety valve over the incoming sewer line. If a line backed up, it would back up into the toilet because it was the lowest fixture in the home, keeping it out of sight and away from the finished areas of the house.

Basement toilets were also used by workers with messy jobs, like those who worked in coal mines or steel mills. This way, they could clean up and avoid tracking dirt through their home.

The toilet flange anchors to the subfloor, usually with wood screws or cement screws, but most of it should sit above floor level at full height. When a flange is flush with the subfloor or below it, it can lead to the creation of leak paths.

The toilet should rest 10, 12, or 14 inches from the back wall. As for other clearances, 15 inches is the minimum distance from the flange to any side wall or nearby fixture, including the shower, tub, and sink. Modern codes also require at least 24 inches of clear space in front of the toilet.

A toilet flange secures your toilet in place to the floor, and connects your toilet to the drain pipe that carries its contents to the sewer. Obvious signs that your flange needs replacement include when it can’t keep up with these two functions. If your toilet rocks back and forth or you see leaks coming from the bottom of your toilet, it’s time for a replacement. Other signs that your toilet flange is broken or faulty may include loose tiles or soft flooring around the toilet, and sewage smells.

The Dover, NH homeowners’ guide to toilet services

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