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Find Basement waterproofing pros in Cornwall

Avatar for Basement Gurus, LLC

Basement Gurus, LLC

4.85(
156
)
Approved Pro

Basement Gurus, LLC

4.85(
156
)
Approved Pro
Customers say: Quality work
15 years of experience
Free onsite estimate

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"I was getting water in my basement every time it rained, Dan helped me rule out other causes and recommended a french drain. Basement has been bone dry ever since. The workers took great care and even repaired the water damage from before. I highly recommend calling Basement Gurus for any basement related needs"

Andrew R on December 2025

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"I was getting water in my basement every time it rained, Dan helped me rule out other causes and recommended a french drain. Basement has been bone dry ever since. The workers took great care and even repaired the water damage from before. I highly recommend calling Basement Gurus for any basement related needs"

Andrew R on December 2025


Avatar for Dry Tech Waterproofing Solutions

Dry Tech Waterproofing Solutions

4.73(
218
)
Approved Pro

Dry Tech Waterproofing Solutions

4.73(
218
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
15 years of experience

Our company was built on the foundation of trust, friendship and years of experience. We strive to maintain those same principles in all that we do. Whether it’s a damp basement, foundation issue or an unhealthy, moldy environment; we are here to help. We promise to lessen the stress of your basement or crawlspace troubles with our comprehensive water management, mold remediation and foundation repair solutions. We take great pride in our ability to transform your needs and expectations into a customized solution. With our quality workmanship being guaranteed, you’ll have one less thing to worry about. Call today for your free estimate!

"They did it right & quickly. However, the price quoted to me was no where near the final price. They said they installed a secondary pump which added $1450 more! I don't see how a 2nd pump cost more than the primary one. Don't like getting bids over the phone without seeing what needs to be done."

Fred D on November 2025

Our company was built on the foundation of trust, friendship and years of experience. We strive to maintain those same principles in all that we do. Whether it’s a damp basement, foundation issue or an unhealthy, moldy environment; we are here to help. We promise to lessen the stress of your basement or crawlspace troubles with our comprehensive water management, mold remediation and foundation repair solutions. We take great pride in our ability to transform your needs and expectations into a customized solution. With our quality workmanship being guaranteed, you’ll have one less thing to worry about. Call today for your free estimate!

"They did it right & quickly. However, the price quoted to me was no where near the final price. They said they installed a secondary pump which added $1450 more! I don't see how a 2nd pump cost more than the primary one. Don't like getting bids over the phone without seeing what needs to be done."

Fred D on November 2025


Avatar for Once & Done Waterproofing Solutions, LLC

Once & Done Waterproofing Solutions, LLC

4.84(
53
)
Approved Pro

Once & Done Waterproofing Solutions, LLC

4.84(
53
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
7 years of experience

At Once & Done Waterproofing Solutions, LLC, 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!

"Getting French drains put in. Very knowledgeable "

Mario P on April 2025

At Once & Done Waterproofing Solutions, LLC, 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!

"Getting French drains put in. Very knowledgeable "

Mario P on April 2025


"Excellent work. High quality, punctual and polite workmen, 100% satisfied, and would recommend without hesitation. Best of all, they were economical. Great job"

William W on August 2021

Crack in your wall we're the guys to call! Free Estimates and lifetime warranty! We are a local family owned company and pride ourselves on using American based products. Call now and receive a $500.00 discount on any basement waterproofing system.

"Excellent work. High quality, punctual and polite workmen, 100% satisfied, and would recommend without hesitation. Best of all, they were economical. Great job"

William W on August 2021


Avatar for Highlander Waterproofing, Inc

Highlander Waterproofing, Inc

4.50(
129
)
Approved Pro

Highlander Waterproofing, Inc

4.50(
129
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
14 years of experience

At Highlander Waterproofing & Foundation Repair, we specialize in basement waterproofing and foundation repair services. We are the proud repeat recipient of the Better Business Bureau Torch Award for Ethics 2021 & 2022! If water is invading your home, you are not alone. We offer custom-designed waterproofing solutions and foundation repair that you can trust. With well-over more than a collective century of experience, we have mastered repairs and installations. Highlander Waterproofing is family owned and operated and has a 100% commitment to our customer's satisfaction. Much like the foundation repair work we specialize in, building on a strong foundation is the key to success, which is why we have built our business on hard work, endless energy, knowledge and integrity. Contact us today for a free inspection at 877-415-0564 or [email protected]

"They worked steadily, efficiently. They were respectful of our other furnishings trying to keep the dust and dirt from getting to them. They were pleasant to speak with. They explained a few things when I asked. I would recommend them to anyone that was looking for a company that would deal with their water in the basement problem."

Linda L S on April 2024

At Highlander Waterproofing & Foundation Repair, we specialize in basement waterproofing and foundation repair services. We are the proud repeat recipient of the Better Business Bureau Torch Award for Ethics 2021 & 2022! If water is invading your home, you are not alone. We offer custom-designed waterproofing solutions and foundation repair that you can trust. With well-over more than a collective century of experience, we have mastered repairs and installations. Highlander Waterproofing is family owned and operated and has a 100% commitment to our customer's satisfaction. Much like the foundation repair work we specialize in, building on a strong foundation is the key to success, which is why we have built our business on hard work, endless energy, knowledge and integrity. Contact us today for a free inspection at 877-415-0564 or [email protected]

"They worked steadily, efficiently. They were respectful of our other furnishings trying to keep the dust and dirt from getting to them. They were pleasant to speak with. They explained a few things when I asked. I would recommend them to anyone that was looking for a company that would deal with their water in the basement problem."

Linda L S on April 2024


Avatar for Groundworks

Groundworks

4.56(
50
)
Approved Pro

Groundworks

4.56(
50
)
Approved Pro
Customers say: Super punctual
50 years of experience
Free onsite estimate

Groundworks, formerly Baker's Waterproofing, has specialized in helping homeowners with their foundation repair, waterproofing, and concrete needs since 2009. Our top priority is providing high-quality home repair solutions and personalized service across central Pennsylvania. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your basement, foundation, or concrete. PA158514 (PA)

"The job went extremely well. Aaron Lenker and Corbin Gillichbauer performed the service and were professional and polite. I’m completely satisfied. Well done."

Paul S on July 2025

Groundworks, formerly Baker's Waterproofing, has specialized in helping homeowners with their foundation repair, waterproofing, and concrete needs since 2009. Our top priority is providing high-quality home repair solutions and personalized service across central Pennsylvania. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your basement, foundation, or concrete. PA158514 (PA)

"The job went extremely well. Aaron Lenker and Corbin Gillichbauer performed the service and were professional and polite. I’m completely satisfied. Well done."

Paul S on July 2025


Avatar for Groundworks

Groundworks

4.26(
196
)
Approved Pro

Groundworks

4.26(
196
)
Approved Pro
Customers say: Quick response
50 years of experience
Free onsite estimate

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

"We hired Groundworks (formerly Baker?s Waterproofing) for a $20,000 basement waterproofing project that was promised to be fast, dust-free, and high-quality. Instead, our home was left coated in concrete dust, parts of the job were rushed, and unsafe wiring still powers our sump pump. Promised electrician service has yet to happen. Three months later, the $10,000 filtration system is still unusable. This project has cost us significant time, caused stress for our family, and left us with ongoing safety concerns. We cannot recommend this company based on our experience. Although one middle manager tried to help and arranged partial repairs, upper management ignored most issues. Three months later, the air filtration system remains unusable, electrical hazards persist, and no restitution has been made. What an exhausting mistake at a deeply personal cost. "

Rebekah A on August 2025

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

"We hired Groundworks (formerly Baker?s Waterproofing) for a $20,000 basement waterproofing project that was promised to be fast, dust-free, and high-quality. Instead, our home was left coated in concrete dust, parts of the job were rushed, and unsafe wiring still powers our sump pump. Promised electrician service has yet to happen. Three months later, the $10,000 filtration system is still unusable. This project has cost us significant time, caused stress for our family, and left us with ongoing safety concerns. We cannot recommend this company based on our experience. Although one middle manager tried to help and arranged partial repairs, upper management ignored most issues. Three months later, the air filtration system remains unusable, electrical hazards persist, and no restitution has been made. What an exhausting mistake at a deeply personal cost. "

Rebekah A on August 2025


Hydro-Solutions, Inc.

3.50(
1
)
Approved Pro

Hydro-Solutions, Inc.

3.50(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
12 years of experience

Hydro-Solutions, Inc., are experts in Basement Waterproofing and Foundation Repair. We are a locally owned and operated company, that values honesty and integrity in all aspects of our business. Our dedicated team of professionals, have many years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"."

Deborah M on August 2017

Hydro-Solutions, Inc., are experts in Basement Waterproofing and Foundation Repair. We are a locally owned and operated company, that values honesty and integrity in all aspects of our business. Our dedicated team of professionals, have many years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"."

Deborah M on August 2017


Avatar for Basement Waterproofing Solutions

Basement Waterproofing Solutions

4.86(
72
)

Basement Waterproofing Solutions

4.86(
72
)
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Now is the time for you and your family to stop suffering the effects of continued wet or damp basement problems! With over 30 years experience in the construction field and 20 years in basement waterproofing, Basement Waterproofing Solutions (or BWS) has the expertise to solve all of your basement water problems with reliable service and proven results. Eliminate Musty Odors Stop Mold Growth Reduce Allergies Improve Air Quality Waterproofing Mold Remediation Foundation Repair Insured Transferable Warranty Local References Owner Operated Financing Available

"Our family room is built on a concrete slab foundation. We've had water issues forever. We've had others try to figure out why & make suggestions. We hired a company previously that said they could fix it, helped some but still had some wetness after rains. We made a good decision to have David from Basement Waterproofing Solutions come take a look. He studied, he measured & he figured it out. We still check for wetness after a hard rain, we've done it for 20 years. The room has stayed dry for over a year & we are very thankful to David and his team!"

Billye K on August 2021

Now is the time for you and your family to stop suffering the effects of continued wet or damp basement problems! With over 30 years experience in the construction field and 20 years in basement waterproofing, Basement Waterproofing Solutions (or BWS) has the expertise to solve all of your basement water problems with reliable service and proven results. Eliminate Musty Odors Stop Mold Growth Reduce Allergies Improve Air Quality Waterproofing Mold Remediation Foundation Repair Insured Transferable Warranty Local References Owner Operated Financing Available

"Our family room is built on a concrete slab foundation. We've had water issues forever. We've had others try to figure out why & make suggestions. We hired a company previously that said they could fix it, helped some but still had some wetness after rains. We made a good decision to have David from Basement Waterproofing Solutions come take a look. He studied, he measured & he figured it out. We still check for wetness after a hard rain, we've done it for 20 years. The room has stayed dry for over a year & we are very thankful to David and his team!"

Billye K on August 2021


Avatar for Basements Love Us Inc

Basements Love Us Inc

4.48(
124
)

Basements Love Us Inc

4.48(
124
)
Customers say: Super punctual
Free onsite estimate

We are a family owned & operated business providing Basement Waterproofing, Mold Remediation, Structural Repairs and Crawl Space Encapsulation to the New Jersey, Eastern Pennsylvania, and Delaware area. We have over 20 years of combined experience, and are fully licensed and insured in both New Jersey, Pennsylvania, and Delaware. We strive for excellence and are proud to offer a 100% satisfaction guarantee. We look forward to helping your family today! Secondary Address: 5211 Arendell Ave., Philadelphia, PA 19114.

"job was done in a timely manner, however was not done in a professional workman like manner, Which the contract states it would be done. When the estimator came he explained what would be done to eliminate water issue. When we asked how does water get removed outside and how they would undermine stairs and walls he simple stated the installers will go over that with you when they come. The installers said they would be channeling under the step and walls, which are only 2 1/2 inch walls. The last step was also a simple channel as well. More time consuming perhaps, when you charge $3000.00 more than another contractor, homeowners are believing they are getting a professional job! They cut her stair runner instead of peeling it back so it could be glued back down. she needs replace whole runner now and company could care less including there estimator! sheetrock replacement also more expensive because took a hammer to the walls instead of saw zall,nice straight lines! also have photos."

mark h on September 2025

We are a family owned & operated business providing Basement Waterproofing, Mold Remediation, Structural Repairs and Crawl Space Encapsulation to the New Jersey, Eastern Pennsylvania, and Delaware area. We have over 20 years of combined experience, and are fully licensed and insured in both New Jersey, Pennsylvania, and Delaware. We strive for excellence and are proud to offer a 100% satisfaction guarantee. We look forward to helping your family today! Secondary Address: 5211 Arendell Ave., Philadelphia, PA 19114.

"job was done in a timely manner, however was not done in a professional workman like manner, Which the contract states it would be done. When the estimator came he explained what would be done to eliminate water issue. When we asked how does water get removed outside and how they would undermine stairs and walls he simple stated the installers will go over that with you when they come. The installers said they would be channeling under the step and walls, which are only 2 1/2 inch walls. The last step was also a simple channel as well. More time consuming perhaps, when you charge $3000.00 more than another contractor, homeowners are believing they are getting a professional job! They cut her stair runner instead of peeling it back so it could be glued back down. she needs replace whole runner now and company could care less including there estimator! sheetrock replacement also more expensive because took a hammer to the walls instead of saw zall,nice straight lines! also have photos."

mark h on September 2025

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Basement Waterproofing questions, answered by experts

Foundation problems will likely get worse over time if they aren’t repaired. As foundation problems progress, your home may experience signs of structural damage, water damage, and health and safety risks—all of which will only get more expensive to fix the longer you wait. Repair foundation problems as soon as you’re aware of them to avoid complex and expensive remediation in the future.

Water that pools under pavers can erode the soil foundation and weaken the paver structure. In some situations, it can also cause mold and mildew growth. If that happens, you may need to start budgeting for the cost to build and install a patio to replace the damaged one.

A moisture or vapor barrier helps separate the warm air inside your home from the cold air outside of it. Without it, your walls could collect condensation, mold, or other damage. Check your local building codes to see if including an interior vapor barrier is necessary for your building project or renovation, especially for rooms that are likely to be humid, like bathrooms.

Brick is designed to absorb moisture, but it is also designed to let it evaporate as well. So in general, the goal shouldn’t necessarily be keeping moisture out but making sure it has the room to breathe. If you have excess moisture getting through your brick wall, it’s more likely that you have a crack or other issue at play that a typical sealant won’t fix. So, instead of investing in sealant, try repairing your brick wall instead.

No, everything doesn’t get wet if the bathroom is well-designed and the fixtures are properly installed. It’s important that the floor of a wet room drains correctly, and proper waterproofing and slip-resistant flooring are used to avoid creating slipping hazards. Since the shower isn’t housed in an enclosed space, you’ll need to make sure the towel rack and toilet paper holder are placed in areas where they won’t get wet.

The Cornwall, PA homeowners’ guide to basement waterproofing services

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

What do you need done? We’ll find top pros.
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