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Verified Reviews for Basement Waterproofing pros in Fitzwilliam, NH

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

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

Last update on June 09, 2026

Find Basement waterproofing pros in Fitzwilliam

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

Serving Fitzwilliam, 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 New England Foundation Crack Repair, LLC
New England Foundation Crack Repair, LLC
5.0(
95
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Fitzwilliam, NH and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Paul the technician was great. He was professional and informative. I have some foundation issues in my basement and he was able to waterproof everything that was a problem for a decent price. Highly recommended"
Response time4 hrs
2 neighbors recently requested a quote
Recommended by78%of homeowners
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Avatar for Groundworks
Groundworks
4.6(
26
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Fitzwilliam, NH and surrounding areas

Approved (Corporate)

In business since 1996

Free estimates

Warranties offered

"They did a nice job"
Foundation
Foundation
Foundation
Basement
Basement

+16

Response time12 hrs
224 neighbors recently requested a quote
Recommended by56%of homeowners
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Avatar for LeBlanc Basement Waterpoofing, LLC
LeBlanc Basement Waterpoofing, LLC
5.0(
3
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Fitzwilliam, NH and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Very honest, great at communicating everything that was going to happen and how long, very helpful and accommodating. Very professional and made me feel comfortable! They showed up on time and did a great job!"
Ion sump pump
Airtight solid sump cover
Ashburnham, MA.
Ashburnham, MA.
Ashburnham, MA.

+28

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Broman Contracting LLC
Broman Contracting LLC
5.0(
6
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Fitzwilliam, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"These guys did such a fantastic work with sealcoating our driveway. The level of attention to details these guys put in is unmatched! Highly recommended."
Before
Excavation
Backfill
Basement Waterproofing
Finished Concrete

+2

7 neighbors recently requested a quote
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Avatar for Cornerstone Foundation Crack Repair LLC
Cornerstone Foundation Crack Repair LLC
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Fitzwilliam, NH and surrounding areas

Approved

Free estimates

Offers commercial services

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. \n\nCall us today you'll be pleased you did. Thank you

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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 Fitzwilliam, NH and surrounding areas

Approved

In business since 2021

Warranties offered

Credit card accepted

"I hired a different business outside of HomeAdvisor"
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%
60 neighbors recently requested a quote
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Avatar for Freedom Framing and More, LLC
Freedom Framing and More, LLC
4.3(
14
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Fitzwilliam, NH and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Matt provided exceptional quality service and was very friendly and informative. I would definitely recommend him for the wide range of home repairs / improvements he is able to provide."
Before
During
Wrapping up
Finished
Prep

+34

Response time2 days
Response rate95%
Recommended by84%of homeowners
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W.W. Water Systems, LLC
5.0(
3
)
Basement Drainage Channels - Repair

Serving Fitzwilliam, 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
3 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Parkway Masonry and Construction INC
Parkway Masonry and Construction INC
4.1(
8
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Fitzwilliam, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Very happy with parkway masonry and construction we had troubles with water seeping into our basement they got the issue resolved great team of guys"
What We Can Do For You and More
What We Can Do For You and More
What We Can Do For You and More
What We Can Do For You and More
What We Can Do For You and More

+6

Response time1 day
Response rate98%
18 neighbors recently requested a quote
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Basement Waterproofing questions, answered by experts

Mold and mildew are the things in basements that actually cause the musty odors, but moisture is the underlying issue that causes mold and mildew growth. Addressing moisture and water problems and then removing materials that are moldy are some of the best ways to get rid of the musty odors. Preventive measures after that—like installing air fresheners and a dehumidifier—can help keep musty odors from returning.

If foundation problems are not fixed, they will likely worsen over time, leading to more complex and expensive repairs. Neglecting a damaged foundation can cause a range of issues, including:

  • Structural Damage: Minor problems like small cracks can escalate into major structural issues. This can damage the house above the foundation and, in severe cases, lead to foundation walls caving in or a total collapse.

  • Water Damage and Pests: Moisture and water intrusion can cause flooding, mold growth, and pest infestations.

  • Health and Safety Risks: Mold can lead to poor indoor air quality and other health risks, while structural instability poses a significant safety hazard.

  • Reduced Home Efficiency: A compromised foundation can negatively impact your home's energy efficiency.

To avoid these escalating problems and costs, it's best to hire a foundation repair company to address any issues as soon as you become aware of them. The earlier problems are discovered and fixed, the lower the repair cost will likely be.

“Basement waterproofing” sometimes refers to applying a waterproof sealant to basement walls, in which case you would use a waterproof paint, often made of latex. However, there are many methods you can use to waterproof a basement, including exterior drainage systems, interior drainage systems, dehumidifiers, and more. As such, the materials you use can vary depending on the methods you use.

The difficulty of adding a basement to an existing house can vary depending on the house’s location, the size of the basement, and the type and condition of the existing foundation. Adding a basement is a job best handled by the pros, so you’ll need to enlist professional help for this project.

Foundation repair uses methods such as underpinning, slab jacking, or application of hydraulic piers. Each technique is chosen based on structural needs, soil conditions, and damage extent, ensuring a stable and secure foundation.

The Fitzwilliam, NH homeowners’ guide to basement waterproofing services

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

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