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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon15
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Williamsport

Avatar for Basement Gurus, LLC

Basement Gurus, LLC

4.84(
151
)
Approved Pro

Basement Gurus, LLC

4.84(
151
)
Approved Pro
Customers say: Quality work
2010 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


"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 The Basement Expert, Inc.

The Basement Expert, Inc.

4.62(
88
)
Approved Pro

The Basement Expert, Inc.

4.62(
88
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
2000 years of experience

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Jeremiah and his crew did a fantastic job. They are very professional and would highly recommend. Finished the job in a day and a half. "

Ron P on November 2025

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Jeremiah and his crew did a fantastic job. They are very professional and would highly recommend. Finished the job in a day and a half. "

Ron P on November 2025


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
2011 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
1975 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
1975 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


Central Penn Waterproofing

4.65(
20
)

Central Penn Waterproofing

4.65(
20
)
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Central Penn Waterproofing is a full service family owned and operated business with over 35 years of experience in the waterproofing industry. No job is too large or too small. Our customers include government projects, colleges, schools, churches, businesses, and residential homes. Call for a free estimate.

"Would not recommend, very sloppy work."

rosanne p on May 2019

Central Penn Waterproofing is a full service family owned and operated business with over 35 years of experience in the waterproofing industry. No job is too large or too small. Our customers include government projects, colleges, schools, churches, businesses, and residential homes. Call for a free estimate.

"Would not recommend, very sloppy work."

rosanne p on May 2019


"My initial contact with Leelands was 10 years ago. I really admired the work they had done on my neighbors house. I just couldn't afford slate repair or replacement at the time. The employees were always courteous and patient. Fast forward to May 2018, I had exhausted all the patching my roof could take. I contacted Leelands, Donna promptly scheduled Luke to come out for an estimate. Luke was on time and provided honest feedback. I recieved a Photo Report, Field Condition Report and Proposals a few weeks later. It took me a few more months to decide how to proceed. In October, Leelands sent Gabriel and Miguel to make the repairs. They were prompt, courteous and worked diligently to finish the job. After a rainy 2018, my roof is still leak free."

Tanya L on January 2019

Additional ph # (610)328-4446. Additional email: [email protected]. Mailing Address:Po Box 530 Ephrata PA 17522

"My initial contact with Leelands was 10 years ago. I really admired the work they had done on my neighbors house. I just couldn't afford slate repair or replacement at the time. The employees were always courteous and patient. Fast forward to May 2018, I had exhausted all the patching my roof could take. I contacted Leelands, Donna promptly scheduled Luke to come out for an estimate. Luke was on time and provided honest feedback. I recieved a Photo Report, Field Condition Report and Proposals a few weeks later. It took me a few more months to decide how to proceed. In October, Leelands sent Gabriel and Miguel to make the repairs. They were prompt, courteous and worked diligently to finish the job. After a rainy 2018, my roof is still leak free."

Tanya L on January 2019



"Awful. Absolutely awful. We hired them for an insurance claim. The job was extremely sloppy. The drywall is uneven and chunky. There was paint splatter on my floor that no one felt the need to clean up. There was a spot on my floor that was supposed to be fixed under the carpeting. It was never fixed and I paid out of pocket to have that carpeting replaced and that floor fixed. the padding was never replaced under that section of carpet either and I paid for that too!! When I brought it up to the owner, I receive no response. I have called and left voicemails, my wife has called and left voicemails. I even contacted the restoration company who hired these goons, and they are just passing us off to the owner like it's all his fault. NO you hired an incompetent contractor. He has been to small claims court before, he may be going there again if this issue isn't resolved."

Ed W on February 2024

Meeting YOUR needs Year Round. Fully licensed and insured. Serving Central PA since 2011.

"Awful. Absolutely awful. We hired them for an insurance claim. The job was extremely sloppy. The drywall is uneven and chunky. There was paint splatter on my floor that no one felt the need to clean up. There was a spot on my floor that was supposed to be fixed under the carpeting. It was never fixed and I paid out of pocket to have that carpeting replaced and that floor fixed. the padding was never replaced under that section of carpet either and I paid for that too!! When I brought it up to the owner, I receive no response. I have called and left voicemails, my wife has called and left voicemails. I even contacted the restoration company who hired these goons, and they are just passing us off to the owner like it's all his fault. NO you hired an incompetent contractor. He has been to small claims court before, he may be going there again if this issue isn't resolved."

Ed W on February 2024

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FAQs for basement waterproofing projects in Williamsport, PA

Due to the nature of basements, some level of waterproofing is necessary to prevent water from seeping in and causing damage. Some definitive signs that your basement needs waterproofing measures or needs existing waterproofing measures need to be updated include:

  • Water in your basement, including damp walls or puddles on the floor

  • Mold spots in your basement

  • Musty smells or odors

  • Warped doors or walls

  • Cracks in walls

  • Insect issues, such as cockroaches and termites

You can DIY basement waterproofing in some ways to help save on the overall costs. If your basement isn’t experiencing a lot of water but is noticeably humid, you can try running a dehumidifier that will pull the excess water out of the air. If you notice water leaking due to outdoor drainage issues, you can add downspout extensions to keep rainwater away from your home. 

However, if the problem is more severe and requires a more extensive solution, it’s best to call a basement waterproofing professional to assess the treatment you need and install waterproofing safeguards properly. Since keeping water out of your basement is important, ensuring this job is done correctly the first time is best.

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.

Several factors dictate if you should waterproof the interior or exterior of your basement. Waterproofing the exterior of your home is a great option if you use your basement for storage, as it provides the most protection from water and water damage. If you prefer work done outside of your home versus inside, exterior waterproofing is best for you. However, interior waterproofing is often less expensive since the area is easier to reach and requires less labor.

The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in. 

If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.

The Williamsport, PA homeowners’ guide to basement waterproofing services

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