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    Verified french drain services reviews

Top-Rated French drain pros in Windham - Updated Nov 2026

Avatar for Ferris Plumbing, Heating & Air
Ferris Plumbing, Heating & Air
4.9(
58
)
Drain Clog or Blockage - Clear

Serving Windham, NH and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I called Matt on a Sunday in need of a plumber for Monday and he rearranged his schedule to help us out so we could move forward with our bathroom renovation after listening to our situation. He came over and removed our old cast iron tub which was just a bonus because I was going to keep it even though I didn’t want to. He also put in a new shower valve and fixtures, tub drain, sink faucet, and toilet. It was a big job and he did it effortlessly and I couldn’t believe he was at our house in less than 24 hours of calling him. His work was impeccable, he has fair pricing, he was clean and a pleasure to have in our home. He was also a wonderful mentor to his apprentice who he walked him through everything they were doing. I highly recommend Ferris Plumbing and will definitely call him for our next renovation project."
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
Avatar for Expedition Plumbing
Expedition Plumbing
5.0(
22
)
Drain Clog or Blockage - Clear

Serving Windham, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"David responded promptly and answered all the questions professionally, prior even him coming out to our home . Day when he came to replace new water heater he explained options and advised on also possible issues arising from previous old plumbing that we had which he also happily replaced . Strongly advise him , extremely happy with work that was performed."
69 neighbors recently requested a quote
Avatar for BK Sewer & Drain Services
BK Sewer & Drain Services
5.0(
6
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+1 more

Serving Windham, NH and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Bright knows exactly what he's doing and how to fix a major plumbing issue. Very professional, prompt, has very clear communication, is hard working, very hard working, and personable. He has the proper equipment do diagnose and fix the problem in a timely manner. His knowledge of plumbing is also exemplary. It was a pleasure doing business with him and will hire him for future jobs. Thank you Bright!"
Response time3 hrs
Recommended by100%of homeowners
Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,404
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+2 more

Serving Windham, NH and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

Live Your Most Comfortable Life with a Company You Trust. \nWe offer Same Day Service and Next Day Installation! \n \nSila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it?s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe ? season after season. \nWe guarantee satisfaction and are proud to have earned over 7,000 ?A? ratings on Angie?s List and its prestigious Super Service Award!

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+6

64 neighbors recently requested a quote
Recommended by89%of homeowners
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French Drains FAQs, answered by experts

Professional plumbers use many high-grade chemicals to unclog drains. Many use hydrochloric acid, known as muriatic acid, when it comes to extreme blockages. 

Anything from debris, rust, ice, and even poor installation can cause clogs in your plumbing vents. Some signs of a clog include slow drains, gurgling sounds in drains and toilets, and bad odors. The bad odors are the most concerning, as these can include methane and hydrogen sulfide. Contact a plumber to come take a look if you notice any of these signs.

While you don’t have to run out and immediately buy a new toilet at the first sign of a clog, if the toilet keeps clogging because it’s a low-flow or poorly designed model, a new toilet may be the way to go. If your toilet keeps clogging, you can try using less toilet paper, adjusting the fill valve, checking the toilet vent pipe on the roof, and using a toilet auger to make sure nothing is stuck in the pipe or trap.

Usually it’s fine to leave a toilet clogged overnight, as long as it’s not close to overflowing. In some cases, the extra time may give the clog time to work itself out. For example, if it’s caused by an excess of toilet paper, letting it sit could result in the clog dissolving and you may be able to simply flush it away by the time you wake up. 

Only let it sit though if you have more than one toilet in the home.

Water leaking through your basement floor is a good sign of a clogged drain, but another sign of a clogged basement floor drain can include unpleasant odors coming from the drain. Also, hearing gurgling noises when water drains from the basement or having other plumbing fixtures (like toilets or other drains) backing up is a good indicator.

The Windham, NH homeowners’ guide to french drain services

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