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Find Basement drainage channels installers in Hollis

Avatar for Groundworks
Groundworks
4.7(
23
)

Serving Hollis, NH and surrounding areas

Approved (Corporate)

In business since 1996

Free estimates

Warranties offered

"Just finished a visit with Foreman Doug and his crew, Devin, Sean, and Mason. Waterproofing the basement and super sound and solid work! Doug was professional and very good at keeping me in the loop with the project over the 3 day visit, and created a solid system that we are confident will keep water out of the basement forever. Above and beyond as well with problem solving when having to find solutions to fit our basement layout, all with a solid financing option/great price and 5 year warranty/ yearly inspection plan. If you are stuck with water in your basement, get Groundworks working for you ASAP!"
Foundation
Foundation
Foundation
Basement
Basement

+16

Response time12 hrs
148 neighbors recently requested a quote
Recommended by56%of homeowners
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Avatar for Erickson Foundation Solutions
Erickson Foundation Solutions
4.6(
9
)

Serving Hollis, NH and surrounding areas

Approved

In business since 1979

Free estimates

Emergency services offered

"They did a fantastic job! We have had driving rain since the installation and our basement is bone dry. They came on time, were very polite and I'm very happy with the fast train system they installed."
View of the cracked and bowing field stone foundation wall.
PowerBrace wall supports are installed, and the new steel reinforced concrete wall is formed around them to fully stabilize the bowing foundation wall.
The auxiliary wall is anchored to the floor below and joists above and stabilized with PowerBrace wall supports.
Additional Photos
Additional Photos

+54

Response time2 days
Response rate92%
13 neighbors recently requested a quote
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Avatar for Rescue Plumbing Services
Rescue Plumbing Services
5.0(
5
)

Serving Hollis, NH and surrounding areas

Approved

In business since 2023

Customers say: Quick response

"Cody and his crew were amazing-- we had a complicated issue that required multiple visits and coordination with the city's engineers. Cody was professional, knowledgeable, and as dedicated to getting the job done right as if it had been his own home. His quotes were accurate and competitive, he and his crew were on time (and often stayed late!) and kept the work area clean and safe. We will never call anyone else!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

3 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Alo Seamless Gutters
Alo Seamless Gutters
5.0(
95
)

Serving Hollis, NH and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"High quality, professional work with very good value Joe’s ALO team just finished installing the gutters on the frontside of our house and they did such a high-quality work at a very reasonable price. We did get quotes from multiple gutter companies and some folks quoted us ridiculous prices (thousands of dollars) that seemed quite out of touch. ALO won our business due to their high-quality gutters with a screen cover and an anti-splash board – a quite smart design at a very reasonable price."
Recommended by100%of homeowners
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Bulkhead Doors Inc
4.8(
53
)

Serving Hollis, NH and surrounding areas

In business since 2004

Free estimates

Warranties offered

"I sent their office a request for a quote and heard back within a couple hours, they came out, measured took photos and explained options. Received the quote same day. Great correspondence, very professional. The installers came out and did a great job! Cleaned up their mess and made sure we where 💯 satisfied. I would recommend them over any of the other companies out there. It's a breath of fresh air to do a project and not have any issues."
Recommended by92%of homeowners
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Avatar for VJR Landscape Design
VJR Landscape Design
5.0(
37
)

Serving Hollis, NH and surrounding areas

In business since 2002

Free estimates

Warranties offered

"Very quick and professional response to initial inquiries and all follow up communication during the season. Work always done on schedule. Not only thorough in their work but very considerate replacing lawn furniture. First landscape contractor I’ve worked with who went a whole season without breaking something. Their ‘’Quickbook’ invoice system is very convenient and good for my record keeping."
Recommended by100%of homeowners
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Showing 1-10 of 341
FAQs for basement drainage channels installation projects in Hollis, NH

Expect a well-built French drain to last 30 to 40 years. By channeling both surface- and ground-water away from your foundation, the system relieves hydrostatic pressure and helps prevent costly structural damage. Choose a pipe with a quality cloth filter to keep sediment out and extend the drain’s life. A quick annual inspection and routine cleanouts will keep water flowing freely, ensuring the system continues to protect your home for years to come.

Most French drains sit two feet below grade, but depth ultimately depends on the problem you’re solving. For puddling rainwater or snowmelt, a shallow curtain drain at lawn level often does the trick. To handle rising groundwater, pros dig deeper, down to the footing, and run the pipe beneath the basement slab. A drainage contractor will determine the optimal depth for your specific soil conditions and water issues.

A properly installed interior French drain captures water at the slab, channels it to a sump pit, and directs it safely outside, preventing basement floods before they occur. Because the pipe sits just under the floor edge, a plumber can reach it easily for cleaning or repairs. Pairing the drain with a reliable sump pump gives you the best long-term protection.

Hire a contractor who installs drainage systems every day—typically a foundation specialist, drainage contractor, experienced landscaper, or plumber with waterproofing experience. These pros understand slope, soil, and local codes, and they have the equipment to trench safely around utilities. Ask for references and photos of recent jobs to be sure they can design a system that keeps water off your foundation for decades.

Once the drain is in, patch the yard by reseeding bare spots or replacing plants the crew removed. Inside, look for ways to add value—finishing the basement or upgrading interior waterproofing while the space is open often costs less now than later. Schedule a quick annual checkup to flush sediment and confirm the pipe and sump pump are clear. Consistent maintenance ensures the drain functions properly and protects your investment.

Most policies don’t cover the cost of repairing a French drain itself, but they may provide coverage for water damage if the system fails. Coverage varies by insurer, so be sure to read the fine print or contact your agent before any issues arise. If you live in a high-risk flood zone, consider a separate flood policy to close the gap. Knowing your coverage in advance helps you budget for repairs and avoid unexpected costs.

The Hollis, NH homeowners’ guide to basement drainage channels installations

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

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