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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."
67 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
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French Drains FAQs, answered by experts

Never pour used motor oil down the drain. Doing so can have serious environmental consequences, including contaminating groundwater, endangering animals, and killing vegetation. It can also clog your pipes, causing backups in your plumbing or the wastewater treatment plant. In most places, pouring motor oil down the drain is illegal, whether you do it in your home or a storm drain.

The most common cause of a clogged sump pump is natural debris buildup. As water enters the sump pit, it can carry small pieces of debris that build up over time, or the debris can get caught in the filter. If you forget to cover the pit after cleaning the sump pump and pit, debris can also collect in the pit. Corrosion on the metal discharge pipe can also clog the pump. Additionally, if your pipes freeze, it can prevent water from draining properly and cause a clog.

That pungent rotten egg smell coming from your drain is likely the buildup of biofilm—hair, skin, and soap scum that turns into a black sticky mess. In this case, pouring down near-boiling water, baking soda, and white vinegar will remove the smell. Keep in mind that a rotten egg smell is occasionally a sign of larger sewage line clogs and other related issues.

Start by unscrewing the overflow valve, which is located on the wall of your tub between the floor drain and the tub spout. Gently insert a plumbing snake down into the pipe, move it back and forth, and pull it out. Remove any hair, debris, and soap scum that comes out with it. Repeat the process until the snake comes out clean, and then reinstall the cap on your overflow valve.

You can often unclog a garbage disposal in less than 10 minutes, though sometimes you might need longer if you’re unsure what’s causing the clog. For minor clogs, consider plunging the drain, flushing the drain with baking soda and vinegar, or using an Allen wrench to free the clog. If the clog is more severe, contact a local plumber.

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.