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  • Verified reviews icon15
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Sandown

Avatar for Erickson Foundation Solutions

Erickson Foundation Solutions

14 Clement Road
4.56(
9
)
Approved Pro

Erickson Foundation Solutions

14 Clement Road
4.56(
9
)
Approved Pro
Customers say: True professional
55 local quotes requested
46 years of experience

Erickson Foundation Solutions is your local expert for ALL THINGS BASEMENTY! We specialize in basement waterproofing, foundation and crawl space repair, sump pump installation and maintenance, concrete lifting & leveling, as well as radon mitigation. When it comes to problems or ongoing issues in your basement, we offer permanent solutions! We are a family owned business that began in 1979, proudly serving New Hampshire, Massachusetts, and Rhode Island.

"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."

Chris T on November 2021

Erickson Foundation Solutions is your local expert for ALL THINGS BASEMENTY! We specialize in basement waterproofing, foundation and crawl space repair, sump pump installation and maintenance, concrete lifting & leveling, as well as radon mitigation. When it comes to problems or ongoing issues in your basement, we offer permanent solutions! We are a family owned business that began in 1979, proudly serving New Hampshire, Massachusetts, and Rhode Island.

"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."

Chris T on November 2021


Avatar for Groundworks

Groundworks

198 Londonderry Turnpike
4.74(
93
)
Approved Pro

Groundworks

198 Londonderry Turnpike
4.74(
93
)
Approved Pro
Customers say: Quick response
28 local quotes requested
29 years of experience

Groundworks, previously Rescon Basement Solutions, specializes in helping homeowners with their foundation repair, basement waterproofing, and crawl space encapsulation needs. Our top priority is providing high-quality home repair solutions and personalized service across New Hampshire and Massachusetts. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation or basement.

"Everything went very well. Josh, Dave and Tommy were very professional, efficient, and always willing to answer any questions I had. I can't recommend them highly enough."

Ken C on August 2025

Groundworks, previously Rescon Basement Solutions, specializes in helping homeowners with their foundation repair, basement waterproofing, and crawl space encapsulation needs. Our top priority is providing high-quality home repair solutions and personalized service across New Hampshire and Massachusetts. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation or basement.

"Everything went very well. Josh, Dave and Tommy were very professional, efficient, and always willing to answer any questions I had. I can't recommend them highly enough."

Ken C on August 2025


Avatar for Groundworks

Groundworks

1600 Providence Hwy
3.71(
217
)
Approved Pro

Groundworks

1600 Providence Hwy
3.71(
217
)
Approved Pro
Customers say: Super punctual
48 local quotes requested
41 years of experience

Groundworks, previously Busy Dog Basement Technologies, specializes in helping homeowners with their waterproofing, foundation repair, crawl space, and remodeling needs. Our top priority is providing high-quality home repair solutions and personalized service across Massachusetts and Rhode Island. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation or basement. MA HIC 164895

"John McLaughlin or w.e his name should be embarrassed on how he treats his customers and workers ."

Mike P on September 2025

Groundworks, previously Busy Dog Basement Technologies, specializes in helping homeowners with their waterproofing, foundation repair, crawl space, and remodeling needs. Our top priority is providing high-quality home repair solutions and personalized service across Massachusetts and Rhode Island. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation or basement. MA HIC 164895

"John McLaughlin or w.e his name should be embarrassed on how he treats his customers and workers ."

Mike P on September 2025


Avatar for Freedom Framing and More, LLC

Freedom Framing and More, LLC

19 Hampshire Rd, Unit 1852
4.54(
13
)
Approved Pro

Freedom Framing and More, LLC

19 Hampshire Rd, Unit 1852
4.54(
13
)
Approved Pro
Customers say: Quick response
11 years of experience
Free onsite estimate

Freedom Framing and More, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 4 years of experience serving New Hampshire, NH and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

"Timely and quality work"

John D on March 2024

Freedom Framing and More, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 4 years of experience serving New Hampshire, NH and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

"Timely and quality work"

John D on March 2024


Avatar for Parkway Masonry and Construction INC

Parkway Masonry and Construction INC

72 Turnpike St
4.57(
7
)
Approved Pro

Parkway Masonry and Construction INC

72 Turnpike St
4.57(
7
)
Approved Pro
105 local quotes requested
4 years of experience

Parkway Masonry and Construction 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.

"Beware and be absolutely sure you ask them the right questions before the work begins. We were ignorant and trusting both big mistakes with these guys! "

Santosh S on April 2025

Parkway Masonry and Construction 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.

"Beware and be absolutely sure you ask them the right questions before the work begins. We were ignorant and trusting both big mistakes with these guys! "

Santosh S on April 2025


Avatar for Erickson Foundation Solutions

Erickson Foundation Solutions

14 Clement Rd.
4.54(
51
)
Approved Pro

Erickson Foundation Solutions

14 Clement Rd.
4.54(
51
)
Approved Pro
Customers say: True professional
37 local quotes requested
46 years of experience

Erickson Foundation Solutions specializes in foundation repair and basement waterproofing systems. We have been helping homeowners in our community fix their homes since 1979. With the help of the Supportworks and Basement Systems dealer networks, we have access to the best materials and foundation solutions in the industry to efficiently and effectively solve any problem you might have in your basement. All of our technicians are professionally trained, so you can be sure that you’re receiving high standards of professionalism and courtesy at every turn. Do you have any foundation problems? We can help!

"The company is working with me."

Richard N on April 2025

Erickson Foundation Solutions specializes in foundation repair and basement waterproofing systems. We have been helping homeowners in our community fix their homes since 1979. With the help of the Supportworks and Basement Systems dealer networks, we have access to the best materials and foundation solutions in the industry to efficiently and effectively solve any problem you might have in your basement. All of our technicians are professionally trained, so you can be sure that you’re receiving high standards of professionalism and courtesy at every turn. Do you have any foundation problems? We can help!

"The company is working with me."

Richard N on April 2025


Avatar for Green Home Solutions of North Central MA

Green Home Solutions of North Central MA

15 Coughlin Street
4.89(
9
)
Approved Pro

Green Home Solutions of North Central MA

15 Coughlin Street
4.89(
9
)
Approved Pro
Customers say: Quick response
85 local quotes requested
4 years of experience

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. With 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. Our services include: Indoor Air Quality Assessments: Identifying and addressing potential health risks. Mold Remediation: Effective removal of mold and mildew. HVAC Duct Cleaning: Improving air circulation and reducing allergens. Probiotic Treatments: Enhancing indoor air quality and promoting a healthier environment. Breathe easy with Green Home Solutions.

"Kenson was very thorough and professional, and applied lots of experience to tailor their services to our exact needs."

Anthony G on February 2025

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. With 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. Our services include: Indoor Air Quality Assessments: Identifying and addressing potential health risks. Mold Remediation: Effective removal of mold and mildew. HVAC Duct Cleaning: Improving air circulation and reducing allergens. Probiotic Treatments: Enhancing indoor air quality and promoting a healthier environment. Breathe easy with Green Home Solutions.

"Kenson was very thorough and professional, and applied lots of experience to tailor their services to our exact needs."

Anthony G on February 2025


WilsonCo.

2 Washington Square PO Box 1714
5.00(
2
)

WilsonCo.

2 Washington Square PO Box 1714
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

WilsonCo. Is here to assist you in any of your residential or small commercial projects . Wilson Co. Can handle all of your ideas,projects, and builds from start to finish .

"We were extremely satisfied with the work Wilson Co. performed. They went over and beyond our expectations. We would highly recommend Wilson Co. to our friends and family."

Chris L on August 2024

WilsonCo. Is here to assist you in any of your residential or small commercial projects . Wilson Co. Can handle all of your ideas,projects, and builds from start to finish .

"We were extremely satisfied with the work Wilson Co. performed. They went over and beyond our expectations. We would highly recommend Wilson Co. to our friends and family."

Chris L on August 2024


CJM Outdoor Services LLC

1654 Paule Avenue
No reviews yet

CJM Outdoor Services LLC

1654 Paule Avenue
No reviews yet
6 years of experience

The mission of CJM Outdoor Services is to become the premier Landscape General Contractor in our target market, delivering high-quality outdoor solutions to government, municipal, and residential clients. We strive to exceed our clients' expectations by providing exceptional workmanship and outstanding customer service. Our vision is to create beautiful and functional outdoor spaces that enhance the quality of life for our clients. We aim to be recognized as a leader in the industry, known for our commitment to innovation, sustainability, and exceptional project execution. CJM Outdoor Services aims to provide a comprehensive solution to our clients' outdoor challenges. By offering a wide range of services including landscape design, tree and stump removal, basement waterproofing, underground utility installation, French drain installation, and snow plowing, we eliminate the need for clients to engage multiple contractors. Our one-stop-shop approach ensures convenience, cost-effectiveness, and streamlines the entire process. We have assembled an experienced team of professionals who possess the skills and expertise necessary to deliver exceptional results on every project. Our team is committed to staying updated with the latest industry trends and best practices, ensuring that we provide innovative and efficient solutions to our clients' outdoor needs.

The mission of CJM Outdoor Services is to become the premier Landscape General Contractor in our target market, delivering high-quality outdoor solutions to government, municipal, and residential clients. We strive to exceed our clients' expectations by providing exceptional workmanship and outstanding customer service. Our vision is to create beautiful and functional outdoor spaces that enhance the quality of life for our clients. We aim to be recognized as a leader in the industry, known for our commitment to innovation, sustainability, and exceptional project execution. CJM Outdoor Services aims to provide a comprehensive solution to our clients' outdoor challenges. By offering a wide range of services including landscape design, tree and stump removal, basement waterproofing, underground utility installation, French drain installation, and snow plowing, we eliminate the need for clients to engage multiple contractors. Our one-stop-shop approach ensures convenience, cost-effectiveness, and streamlines the entire process. We have assembled an experienced team of professionals who possess the skills and expertise necessary to deliver exceptional results on every project. Our team is committed to staying updated with the latest industry trends and best practices, ensuring that we provide innovative and efficient solutions to our clients' outdoor needs.


Maston Concrete

No reviews yet

Maston Concrete

No reviews yet

We specialize in recreational concrete forms, we do footings, everything with forms(foundations, pads, peers etc) and rebar. We are a very small business with a very knowledgeable and experienced 5 person crew

We specialize in recreational concrete forms, we do footings, everything with forms(foundations, pads, peers etc) and rebar. We are a very small business with a very knowledgeable and experienced 5 person crew

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Basement Waterproofing questions, answered by experts

External pressure on the basement wall can cause it to bow inward. Soil, heavy with water saturation, is commonly the main culprit. The soil exerts immense pressure on the wall, causing it to fail, at least partially. This is known as hydrostatic pressure—these situations can occur after rainfall or simply due to regular groundwater presence and may be temporary or more permanent.  

The first step to preventing foundation cracks is to repair any current ones. When one crack forms, it becomes more likely that a second crack will follow. A few other tips include performing regular foundation checks, cleaning spouts and gutters, and installing exterior drains if needed. For those living in a hot and arid area, you should water your foundation every other day.

You’ll need to reseal the foundation every five to 10 years, depending on the sealant you’ve used, the moisture conditions present in and around your home, and the condition of your foundation. Having a foundation inspection conducted before reapplication can help you catch any problems before you begin resealing. Of course, if you notice any new leaks or other moisture problems at any time, it may be necessary to reseal the foundation sooner.

Pooling or standing water in your basement should be cause for alarm and action. This indicates that there is a leak or a drainage issue, and until you repair the root of the problem, the situation will only happen again or grow in severity. It’s important to deal with water damage as soon as it occurs.

Generally, moisture barrier padding costs $0.75 to $1.50 per square foot, varying by brand and mix. That’s a lot more than standard padding, which runs $0.25 to $0.90 per square foot. The price difference between these two options might seem steep, but think of it as insurance against future carpet replacement costs and subfloor damage. If you have pets or kids, that extra investment in high-risk areas like your living room often pays off.

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The Sandown, NH homeowners’ guide to basement waterproofing services

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