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TRUSTED BY DERRY, NH HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.5k+
    Verified toilet services reviews

Top-Rated Toilet pros in Derry - Updated Nov 2026

Avatar for Ferris Plumbing, Heating & Air
Ferris Plumbing, Heating & Air
4.9(
58
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - Clear

Serving Derry, NH and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Excellent. I called Ferris Plumbing on a Thursday afternoon and left a message. Matt returned my call the next morning. After I explained the problem, Matt said he would try to get to me that day (Friday), but he may not be able to. Meanwhile, he suggested not using that toilet. He called later that day and said he couldn't make it, but would be able to on Monday. He called me on Monday morning to confirm that he would be coming and gave me a estimated time of arrival. Matt wasn't able to come himself, but two of his plumbers arrived mid-morning. I explain all of this because Matt's communication was OUTSTANDING. I always knew the status and I knew he would be arriving as soon as he could. His two plumbers were also excellent and efficient. They replaced the toilet flange and gasket, and remounted the toilet without needing to disturb the downstairs ceiling. I should mention that the toilet is the original installation of 48 years ago. The original gasket was completely disintegrated to the point that only few small fragments of it were left. They were also very careful to protect the carpet just outside the bathroom by placing a drop cloth to protect it. Their service and work was EXCELLENT. We are considering remodeling that bathroom and Ferris Plumbing will certainly be our first choice to do the work. I highly recommend (Matt) Ferris Plumbing."
Various Remodel Jobs
Various Remodel Jobs
Various Remodel Jobs
Various Remodel Jobs
Various Remodel Jobs

+24

37 neighbors recently requested a quote
Recommended by78%of homeowners
Granite State Sewer & Drain Cleaning Co
4.9(
13
)
Drain Clog or Blockage - Clear

Serving Derry, NH and surrounding areas

Approved

In business since 1981

Emergency services offered

Warranties offered

"Granite State Sewer called me the next morning and had a technician out within two hours. He explained everything he did and was courteous and knowledgeable. The price was very fair, and I would use them again and will recommend to others."
Additional Photos
Additional Photos
2 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Rescue Plumbing Services, LLC
Rescue Plumbing Services, LLC
5.0(
9
)
Drain Clog or Blockage - Clear

Serving Derry, NH and surrounding areas

Approved

In business since 2022

Free estimates

Offers commercial services

"Commercial Restaurant clogged main sewer drain. Cody and his crew showed for a same day emergency sewer back-up within one hour to un-clog a stubborn clog using cutters and air jetter. Friendly professional service giving me frequent updates. They were careful to protect surrounding area and cleaned up area prior to departing. Best of all the price quoted was almost 1/2 of Roto-Rooter than could not come out for 2 days."
Rescue Plumbing Services
Rescue Plumbing Services
Rescue Plumbing Services
Rescue Plumbing Services
Rescue Plumbing Services

+8

Response time2 hrs
Response rate93%
Recommended by88%of homeowners
Avatar for St Pierre Plumbing & Drains LLC
St Pierre Plumbing & Drains LLC
5.0(
6
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - ClearFaucets, Fixtures and Pipes - Repair or Replace - For Business

Serving Derry, NH and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

Professional Plumbing & Drain Cleaning in Raymond, NH.\nAt St. Pierre Plumbing & Drain Cleaning, we believe you shouldn't have to gamble on the quality of your plumbing. We deliver top-tier residential and commercial plumbing solutions with honest communication, transparent pricing, and dependable workmanship every step of the way.

Project Photos
20 neighbors recently requested a quote
Avatar for Cutting Edge Plumbing, LLC
Cutting Edge Plumbing, LLC
5.0(
15
)
Faucets, Fixtures and Pipes - Repair or Replace

Serving Derry, 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
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Toilets FAQs, answered by experts

Toilet augers are hand-held drain snakes. Most of them come with 3 to 6 feet of cleaning cable and a curved, plastic elbow sleeve to protect your toilet bowl. If your clog does not go beyond the toilet’s wax seal, a 3-foot auger would be sufficient. Otherwise, you may need a 6-foot auger to unclog the drain.

Most toilets have a 12-inch rough-in or hole, but some have 10- or 14-inch holes, which means that not all toilets fit all setups. Knowing how to measure the rough-in is essential, so you purchase a toilet that fits the existing drain hole. It can be costly to have the rough-in moved, and most stores don’t accept toilet returns.

You definitely can over-tighten toilet tank bolts. Unlike some other materials, porcelain can’t bend or flex, so when you over-tighten a screw into it, it could break against the added pressure. Only tighten them as much as needed to keep them in place and firm; any more and you could risk breaking the porcelain.

You can tell if your toilet fill valve is full by removing the lid and taking a look. When you flush the toilet, the float is at the bottom of the tank, the water empties, and the fill valve opens. The float rises to the top as the tank fills again with water. When the float rises to the right level, the fill valve closes; if the valve is too high, your toilet may only partially flush, requiring you to adjust the float. 

To keep your toilet in good working order, replace the toilet fill valve every five years. Toilets get quite a workout, so while toilet maintenance may not be on top of your to-do list, it’s essential to keep up with it to ensure your toilet is in good working order and ready when needed.

The Derry, NH homeowners’ guide to toilet services

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