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  • Average homeowner rating star icon4.6
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  • Verified reviews icon24
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Mendon

Avatar for New England Foundation Crack Repair, LLC

New England Foundation Crack Repair, LLC

4.98(
85
)
Approved Pro

New England Foundation Crack Repair, LLC

4.98(
85
)
Approved Pro
Customers say: Quality work
6 years of experience
Free onsite estimate

New England Foundation Crack Repair is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Our expert technicians offer basement waterproofing resolutions, foundation crack repair, and bowed wall solutions across New England. We specialize in: Foundation Crack Repair, Foundation Floor Crack Repair, Sump Pump Installation, Lally Column Installation, Stone Foundation Repoint, Pipe Penetration Waterproofing, and Bulkhead Waterproofing We look forward to working with you!

"Highly recommend! Knowledgeable, kind, and communicative people all around. Every person I worked with were all lovely people and made everything so easy. Their quote was so informative and detailed and prices seemed reasonable. Chase N. was our repair text and he was very polite, prompt, efficient, and put my mind at ease answering all of my questions. I will definitely work with them again on future repairs."

Gabby W on August 2025

New England Foundation Crack Repair is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Our expert technicians offer basement waterproofing resolutions, foundation crack repair, and bowed wall solutions across New England. We specialize in: Foundation Crack Repair, Foundation Floor Crack Repair, Sump Pump Installation, Lally Column Installation, Stone Foundation Repoint, Pipe Penetration Waterproofing, and Bulkhead Waterproofing We look forward to working with you!

"Highly recommend! Knowledgeable, kind, and communicative people all around. Every person I worked with were all lovely people and made everything so easy. Their quote was so informative and detailed and prices seemed reasonable. Chase N. was our repair text and he was very polite, prompt, efficient, and put my mind at ease answering all of my questions. I will definitely work with them again on future repairs."

Gabby W on August 2025


Avatar for LBJ Masonry

LBJ Masonry

4.98(
33
)
Approved Pro

LBJ Masonry

4.98(
33
)
Approved Pro
Super Service Award
Customers say: Quick response
28 years of experience
Free onsite estimate

Please call us at 6172564872 or email at [email protected] for a free quotation! We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"They an excellent job under difficult weather condition. They took down the box surrounding the chimney, took the chimney down to the roof line, replaced the flues and re-bricked the chimney. "

Charles C on December 2025

Please call us at 6172564872 or email at [email protected] for a free quotation! We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"They an excellent job under difficult weather condition. They took down the box surrounding the chimney, took the chimney down to the roof line, replaced the flues and re-bricked the chimney. "

Charles C on December 2025


"Owner came out and explained everything and went above and beyond to make it work for my budget. Highly recommend this company."

Suzi D on October 2024

Welcome to All Pro Basement Waterproofing. We work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

"Owner came out and explained everything and went above and beyond to make it work for my budget. Highly recommend this company."

Suzi D on October 2024


Avatar for DryZone Basement Systems

DryZone Basement Systems

4.77(
106
)
Approved Pro

DryZone Basement Systems

4.77(
106
)
Approved Pro
Customers say: True professional
18 years of experience
Free onsite estimate

DryZone Basement Systems is your local expert for ALL THINGS BASEMENTY! We specialize in basement waterproofing, foundation and crawl space repair, as well as sump pump installation. Whether your sump pump doesn't turn back on or you have a chronic wet basement, we have the solution! We are a multi-year Super Service Award winner, dating back to 2010 and offer free estimates for everyone. We serve homeowners across Massachusetts and Rhode Island.

"From start to finish DryZone made everything easy. Thank you"

Hutch H on April 2025

DryZone Basement Systems is your local expert for ALL THINGS BASEMENTY! We specialize in basement waterproofing, foundation and crawl space repair, as well as sump pump installation. Whether your sump pump doesn't turn back on or you have a chronic wet basement, we have the solution! We are a multi-year Super Service Award winner, dating back to 2010 and offer free estimates for everyone. We serve homeowners across Massachusetts and Rhode Island.

"From start to finish DryZone made everything easy. Thank you"

Hutch H on April 2025


Avatar for Key Waterproofing Construction

Key Waterproofing Construction

4.73(
194
)
Approved Pro

Key Waterproofing Construction

4.73(
194
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
11 years of experience

Serving all of Eastern Mass and So. New Hampshire including North Shore, South Shore, and Cape Cod We pride our company on reliability, great communication, integrity, and quality work. We are experts in Basement Waterproofing and work hard to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Outstanding presentation, outstanding work. Completed and cleaned up everything and a very fair price. Workers never stopped except for water. Unbelievable pace and quality! Thank you Key Construction. Bob from Dartmouth "

Robert M on September 2025

Serving all of Eastern Mass and So. New Hampshire including North Shore, South Shore, and Cape Cod We pride our company on reliability, great communication, integrity, and quality work. We are experts in Basement Waterproofing and work hard to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Outstanding presentation, outstanding work. Completed and cleaned up everything and a very fair price. Workers never stopped except for water. Unbelievable pace and quality! Thank you Key Construction. Bob from Dartmouth "

Robert M on September 2025


Avatar for Mastercraft Waterproofing, LLC

Mastercraft Waterproofing, LLC

4.98(
43
)
Approved Pro

Mastercraft Waterproofing, LLC

4.98(
43
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

In the trade for 30 years We have a solution for all your construction needs! We have a field representative that will be available 24/7 throughout the entire job, and into the future for concerns! We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"If I could give this company 10 stars I would. Rob was courteous, prompt, efficient, and knowledgeable. He took the time to explain every detail every step of the way. His company 's pricing is very competitive and they give a phenomenal warranty on their work. I highly recommend this company.â­ â­ â­ â­ â­"

Elizabeth M on March 2024

In the trade for 30 years We have a solution for all your construction needs! We have a field representative that will be available 24/7 throughout the entire job, and into the future for concerns! We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"If I could give this company 10 stars I would. Rob was courteous, prompt, efficient, and knowledgeable. He took the time to explain every detail every step of the way. His company 's pricing is very competitive and they give a phenomenal warranty on their work. I highly recommend this company.â­ â­ â­ â­ â­"

Elizabeth M on March 2024


Avatar for Avalon Masonry and Construction

Avalon Masonry and Construction

4.97(
33
)
Approved Pro

Avalon Masonry and Construction

4.97(
33
)
Approved Pro
Super Service Award
Customers say: True professional
2 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

"reliable folks, reasonable price, quality work"

jacob g on October 2025

We take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

"reliable folks, reasonable price, quality work"

jacob g on October 2025


Avatar for Pioneer Basement

Pioneer Basement

4.69(
188
)
Approved Pro

Pioneer Basement

4.69(
188
)
Approved Pro
Customers say: Super punctual
41 years of experience
Free onsite estimate

Additional service area - Cohasset, Fitchburg, Worcester, portions of Chelsea-Saugus, Chelmsford Counties. South Shore & Cape Cod and All of Rhode Island. Family owned and operated since 1984. Additional email - [email protected]. Additional phone - (800) 439-0788. Additional DBA - Pioneer Basement Waterproofing Inc.

"Went well. pumps replaced"

Esther H on August 2022

Additional service area - Cohasset, Fitchburg, Worcester, portions of Chelsea-Saugus, Chelmsford Counties. South Shore & Cape Cod and All of Rhode Island. Family owned and operated since 1984. Additional email - [email protected]. Additional phone - (800) 439-0788. Additional DBA - Pioneer Basement Waterproofing Inc.

"Went well. pumps replaced"

Esther H on August 2022


Avatar for Decked Out Roofing and Construction Corp.

Decked Out Roofing and Construction Corp.

5.00(
7
)
Approved Pro

Decked Out Roofing and Construction Corp.

5.00(
7
)
Approved Pro
Super Service Award
15 years of experience
Free onsite estimate

DECKED OUT ROOFING AND CONSTRUCTION CORP 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.

"They did an outstanding job waterproofing our basement. No more leaks, no more damp smell, and the walls look perfect. The crew was professional, friendly, and completed everything on time. Highly recommend their reliable service."

Scott P on August 2025

DECKED OUT ROOFING AND CONSTRUCTION CORP 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.

"They did an outstanding job waterproofing our basement. No more leaks, no more damp smell, and the walls look perfect. The crew was professional, friendly, and completed everything on time. Highly recommend their reliable service."

Scott P on August 2025


Barry Building Company, LLC

4.94(
8
)
Approved Pro

Barry Building Company, LLC

4.94(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

At Barry Building Company LLC , our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

"Tim was great with communication and efficient with getting the job well done!"

Michael L on September 2024

At Barry Building Company LLC , our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote.

"Tim was great with communication and efficient with getting the job well done!"

Michael L on September 2024

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Basement Waterproofing questions, answered by experts

A walkout basement is considered to be partially below grade because at least one wall is entirely exposed. In some cases and in specific municipalities, inspectors and appraisers will still count walkout basements as below grade, which means the space can’t serve as living space or be rented out. If you intend on using the area as living space or a separate apartment, you should check with your local building department to make sure it’s legal to do so.

It’s not the number of weep holes that should be of concern to builders but rather their spacing. Weep holes are usually spaced anywhere between 16 inches on center when using round tubes or wicking materials and 24 inches on center when using open-head joints. This is a more conservative spacing than the 33-inch maximum spacing on center that’s mentioned in the International Residential Code. All in all, the total number of weep holes a brick exterior should have will depend on the size of the structure.

Proper basement ventilation is very effective at reducing humidity. Without enough ventilation, your basement is prone to mold and moisture damage. Your basement should have as much natural ventilation via windows and doors as possible, and if your budget allows, you should also consider installing an ERV system to keep basement humidity levels at bay.

Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it’s more protective, waterproofing typically costs more than damp proofing.

Walkout basements cost more than other kinds of basements, and can also increase your risk of leaks as well as a loss of insulation, leading to higher heating and cooling costs. Improperly installed walkout basements may lead to structural issues with your foundation, so ensure you’re working with a contractor who has extensive experience with this kind of basement.

The Mendon, MA 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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