Top-rated basement waterproofing pros.

Best basement waterproofing pros near Marlow, NH

Enter your zip and get matched with up to 5 pros

Top-Rated Basement waterproofing pros in Marlow - Updated Nov 2026

Avatar for Northern Basement Systems
Northern Basement Systems
4.6(
21
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Marlow, NH and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"Paul Swann evaluated our foundation problem and referred us to an engineer who provided a detailed repair plan. Unfortunately, the nature and scope of the proposed repair plan was outside the parameters of what Northern Basement System's themselves could provide. We appreciated their honesty and have been looking for a contractor to take on the project."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+25

Response time1 day
3 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Groundworks
Groundworks
4.6(
26
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Marlow, 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
172 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for Broman Contracting LLC
Broman Contracting LLC
5.0(
15
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Marlow, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"They did the job as defined in the scope. I have not been able to test its full function until we have a heavy rain storm . It is designed to keep the basement dry under heavy rain or tropical down pours.. I was very pleased that they were on time and very communicative throughout the engagement."
Before
Excavation
Backfill
Basement Waterproofing
Finished Concrete

+2

1 neighbors recently requested a quote
Avatar for Green Home Solutions of North Central MA
Green Home Solutions of North Central MA
4.8(
13
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Marlow, NH and surrounding areas

Approved

In business since 2021

Warranties offered

Credit card accepted

We provide comprehensive indoor air solutions that target the root cause of the problem, not just the symptoms. Our team of experts utilizes science-backed, eco-friendly treatments to eliminate mold, mildew, and other pollutants.\n\nWith years of experience and a commitment to sustainability, we've successfully transformed thousands of homes, offices, and healthcare facilities across America. Our customers trust us to deliver cleaner, healthier indoor air without harming people, pets, or the planet.\n\nOur services include:\n\nIndoor Air Quality Assessments: Identifying and addressing potential health risks.\nMold Remediation: Effective removal of mold and mildew.\nHVAC Duct Cleaning: Improving air circulation and reducing allergens.\nProbiotic Treatments: Enhancing indoor air quality and promoting a healthier environment.\nBreathe easy with Green Home Solutions.\n\n\n\n\n\n\n\n\n

Attic Mold Remediation - Fitchburg, MA
Mold Contamination in Attic
Living Room- Mold remediation - Lowell MA
Living Room Mold Remediation - Lowell, MA
Attic Mold Remediation - Derry, NH

+11

Response time12 hrs
Response rate90%
44 neighbors recently requested a quote
W.W. Water Systems, LLC
5.0(
3
)
Basement Drainage Channels - Repair

Serving Marlow, NH and surrounding areas

Approved

In business since 2010

Free estimates

Offers commercial services

W.W. Water Systems, LLC was started in 2010 by John Wentzel. John has 15 years experience in the well water industry and holds a Bachelors Degree in Environmental Geology. John is a licensed pump installer in the state of NH and is fully insured. Offering a wide range of water treatment options, Ww Water Systems LLC prides itself on delivering effective and sustainable customized solutions to ensure clean and safe water for its customers. By staying abreast of the latest industry trends and innovations, this supplier remains a trusted choice for those seeking high-quality water treatment products in the Keene area. Call today!

Response time7 hrs
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Four Seasons Masonry And ChimneyConstruction
Four Seasons Masonry And ChimneyConstruction
5.0(
3
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Marlow, NH and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"????? Outstanding Work ? Highly Recommend Four Seasons I recently hired Four Seasons to waterproof my foundation, and I couldn't be happier with the results. From start to finish, they did an excellent job. The crew was professional, hardworking, knowledgeable, and took pride in their work. They did a fantastic job waterproofing the foundation paid attention to the details, and made sure everything was done right. It's not always easy finding a company you can trust, but Four Seasons definitely delivered. The quality of their workmanship and the overall experience exceeded my expectations. I would highly recommend Four Seasons masonry chimney foundation to anyone looking for professional, reliable foundation waterproofing. They did a great job, and I wouldn't hesitate to hire them again! Thank you to the entire Four Seasons team for a job well done!"
Chimney repairs
Chimney repairs
Chimney repairs
Chimney repairs
Chimney repairs

+3

Avatar for Basement Solutions LLC
Basement Solutions LLC
New to Angi
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Marlow, 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

10 neighbors recently requested a quote
Avatar for Green Mountain Basement Solutions LLC
Green Mountain Basement Solutions LLC
4.0(
30
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Marlow, NH and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"When I first called, I was surprised at how quickly they returned my phone call to set up an estimate. He was able to come over the next evening to check out our basement. He was punctual and provided us information about what would need to be done. He stated that he would provide us with an estimate that evening. I waited, but the estimate never came. I called the following week to see the status of the estimate. They stated that they were busy, but I should have it by now and would email it ASAP. After a second week, I called again. They said they would get it to me again. After the third week, I called again and was told the same thing. I gave up at that point and contacted someone else, who will be fixing the basement tomorrow. It's been over a month now and never received an estimate for the work. I understand that it's a busy time of year, but was disappointed to never get the estimate and didn't feel like I should have to pester them for it.
"
Recommended by75%of homeowners
Showing 1-10 of 43
Basement Waterproofing FAQs, answered by experts

Proper drainage prevents water damage, mold growth, and foundation settling, protecting your home’s structural integrity.

In most cases, yes, because the large majority of basements leak or will have moisture issues at some point, and waterproofing methods can mitigate that risk or eliminate it entirely. Plus, water and moisture issues can be quite problematic, as they can lead to mold growth, rotting of building materials, structural damage, poor indoor air quality, increased electric bills, and other problems.

Water leakage through window openings is much more common in older homes, but it can also create issues with window frames that are improperly installed. If left unattended, water buildup can cause damage to surrounding fixtures, lead to harmful mold, and compromise the architectural integrity of your home. The potential damage that a water leak poses makes investing in weather- and water-proofing your window frames entirely worthwhile.

Proper drainage is the only way to ensure that your crawl space stays dry. Depending on your property and the extent of your issue, you might need to consider a gutter system, a French drain, or sump pumps to avoid and handle water and moisture under your home. Dehumidifiers can also help to prevent moisture from accumulating if you have a high-humidity environment.

The most expensive foundation repair method is to install helical piers. Helical piers are a type of steel pier used to support sinking foundations in areas with poor soil conditions or deep bedrock. This foundation repair method can cost up to $3,000 per pier, including labor, because of its material and labor-intensive installation process. Total foundation repair costs can easily reach over $20,000 using this method.

The Marlow, NH homeowners’ guide to basement waterproofing services

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