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TRUSTED BY INTERVALE, NH HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon77
    Verified french drain services reviews

Verified Reviews for French Drain Service pros in Intervale, NH

*The Angi rating for French Drain Service companies in Intervale, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their French Drain Service needs.

*The HomeAdvisor rating for French Drain Service companies in Intervale, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their French Drain Service needs.

Last update on April 20, 2026

Find French drain pros in Intervale

Avatar for Northern Basement Systems
Northern Basement Systems
4.6(
21
)

Serving Intervale, NH and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"Northern basements was able to fit us in quickly, pulled our crooked cement wall back in-place and sealed the wall to prevent future leaks.  The work was timely, communication was friendly and detailed, and price was as to be expected for the large amount of work that needed to be done.  We are very pleased with the whole process as well as the results.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+25

Response time1 day
8 neighbors recently requested a quote
Recommended by88%of homeowners
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Avatar for Groundworks
Groundworks
4.6(
26
)

Serving Intervale, NH and surrounding areas

Approved (Corporate)

In business since 1996

Free estimates

Warranties offered

"Joe,James and Bobby did an excellent job replacing the sump pump And drains. My husband and I were so impressed with their abilities and how hard working they were. I would highly recommend Ground works Manchester to anyone who needs the same work done. Thanks to all the gentlemen for their professionalism and work ethic"
Foundation
Foundation
Foundation
Basement
Basement

+16

Response time12 hrs
216 neighbors recently requested a quote
Recommended by56%of homeowners
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DBA Jory D Bailey
4.8(
13
)

Serving Intervale, NH and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"Jory Bailey did excellent quality work. We are thrilled with the result. Jory does top quality work and is highly respected by those who have used his services. The excavation was completed in a timely manner, with accuracy and precision. The grading and excavation is outstanding. It is a pleasure to work with Jory Bailey. I highly recommend his excavation and grading work."
Response time12 hrs
Response rate90%
Recommended by85%of homeowners
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Avatar for Fillebrown, Excavation and Landscape
Fillebrown, Excavation and Landscape
5.0(
3
)

Serving Intervale, NH and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

Fillebrown, Excavation and Landscape is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Fillebrown
Emergency sewer repair
6 neighbors recently requested a quote
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Avatar for Basement Solutions LLC
Basement Solutions LLC
New to Angi

Serving Intervale, NH and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

We pride our company on reliability, integrity and quality work. We are experts in our trade. We look forward to earning your business! We specialize in concrete crack repair and injections, basement waterproofing, sump pump installations, basement and egress window installations, crawlspace repair, moisture control, foundation repair and so much more.\nCall us today for a free estimate.

Egress
Egress
Egress
Sump Pump
Perimeter System

+4

4 neighbors recently requested a quote
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Avatar for Gotme Under Pressure ?, LLC
Gotme Under Pressure ?, LLC
4.2(
640
)

Serving Intervale, NH and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"I got a call from Mike right after placing the request. We set up a time to come out and fix the clog in my tub and he was early. Within 45 minutes he had the clogged drain fixed working properly and gave some professional advice on the drain system. I would highly recommend using them for all plumbing needs."
Response time6 hrs
Recommended by89%of homeowners
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Avatar for Pacific Stone & Tile
Pacific Stone & Tile
4.6(
321
)

Serving Intervale, NH and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"Very pleased with the job that was done. Only critique would be a slight gap between the backsplash and wall, which had I noticed sooner I am sure they could have corrected with caulk or pushing backsplash closer. It is hardly noticeable. Everybody that I dealt with was extremely friendly. I am very happy with the counter top."
boston job
boston job
w boyston job
Albany ny
marlboro ma

+3

Recommended by91%of homeowners
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Showing 1-10 of 43
French Drains questions, answered by experts

The best drain cleaners are biodegradable ones or a mixture of baking soda and vinegar. Strong, caustic chemicals may seem appealing with promises of unclogging your drain quickly, but liquid drain cleaners can cause damage to your pipes over time. Consider making your own drain cleaner with baking soda and vinegar.

Drain fly problems can go away on their own—but only if the insects find the environment inhospitable. Those with a minor infestation can simply flush their toilets and run their faucets more frequently to flush out the flies and larvae. Others will have to deep clean their drains and set up traps.

The cost to unclog a drain varies based on the location and severity of the clog. For simple clogs within your home, such as in a sink, toilet, or shower, hiring a plumber typically costs between $110 and $350, with an average of around $200. Snaking a toilet or sink usually costs between $110 and $275, while a bathtub or shower clog costs about $225.

For a more serious clog in the main sewer line, the cost is higher. Clearing a main line clog generally costs between $200 and $600, with an average of about $380. However, prices can range from as low as $100 for snaking a minor clog to over $1,600, particularly if advanced methods like video inspection and hydrojetting are needed for a large or hard-to-reach blockage. Some severe main line clogs can cost upwards of $1,000 to clear depending on factors like the cause of the clog, its distance from an accessible cleanout, and whether the pipe is located beneath an occupied space (e.g., in an apartment building). You may be able to save money on minor clogs by using a drain snake or bladder yourself.

There are several homemade solutions for clearing a clogged sink that don’t involve pouring harsh chemicals down your drain. Start by pouring hot (but not boiling) water down the drain. This can help dissolve and flush away grease and gunk. A splash of dish soap down the drain can also cut through fat and make it easier to clear the drain. For a more stubborn blockage, grab a plunger and give it a few firm pumps to dislodge the clog.

While technically possible, it is unlikely that a clogged toilet will fix itself. Clogs caused by water-soluble materials like toilet paper or human waste may eventually break down in the water, allowing flow to resume. However, this can take time, and any clogs from solid objects require manual removal. In most scenarios, especially if you don't have another bathroom, it is best to fix the clog yourself or call a plumber.

The Intervale, NH homeowners’ guide to french drain services

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

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