Get matched with top basement waterproofing pros in Hauppauge, NY
There are 20 highly-rated local basement waterproofing pros.
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27 Verified Reviews for Basement Waterproofing pros in Hauppauge, NY
*The Angi rating for Basement Waterproofing companies in Hauppauge, NY 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 Hauppauge, NY 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 May 23, 2025
Basement waterproofing pros in Hauppauge
WHY--THIS IS A JOB FOR BASEMENT MAN!!! Your locally owned and operated Basement Waterproofing Specialist. Why am I YOUR Basement Waterproofing Specialist? Because over a 38 year period, I've built over 110 customer homes all over Long Island and I know Basements! We stand behind and guarantee all of our work, so give us a call anytime for a free estimate.
"A local real estate agent recommended Jack and, within the hour, he stopped by to review the the work required to remediate a basement mold issue. Jack has extensive knowledge from being a former builder, and within 30 minutes we had agreed to a very fair price and confirmed his team would be on site first thing Monday morning. Jack and his team did an EXCELLENT job, going above and beyond the planned scope discussed while completing the job... in TWO days! He was extremely thorough and communicated it's status throughout the job. Without a doubt Jack and his crew were the best contractors I have worked with. Give Jack a call - you will not be disappointed!"
Michael B on September 2024
WHY--THIS IS A JOB FOR BASEMENT MAN!!! Your locally owned and operated Basement Waterproofing Specialist. Why am I YOUR Basement Waterproofing Specialist? Because over a 38 year period, I've built over 110 customer homes all over Long Island and I know Basements! We stand behind and guarantee all of our work, so give us a call anytime for a free estimate.
"A local real estate agent recommended Jack and, within the hour, he stopped by to review the the work required to remediate a basement mold issue. Jack has extensive knowledge from being a former builder, and within 30 minutes we had agreed to a very fair price and confirmed his team would be on site first thing Monday morning. Jack and his team did an EXCELLENT job, going above and beyond the planned scope discussed while completing the job... in TWO days! He was extremely thorough and communicated it's status throughout the job. Without a doubt Jack and his crew were the best contractors I have worked with. Give Jack a call - you will not be disappointed!"
Michael B on September 2024
**We have now expanded our Foundation Services**Long Hill Masonry has been providing a tradition of expert craftsmanship, quality and service for over 30 years. The company is owned and operated by Joseph Tavella, who himself comes from generations of masons. It is our goal to achieve the highest standard of quality in every project. We guarantee our workmanship for one full year, and most projects are payable upon completion of job take a look at our website at www.longhillmasonry.com
"Joe Cam down to do an estimate and he was very knowledgeable. The Quote was Fair and I had hired them to do the job. They came on time and the job came out great. I would recommend Long Hill to everyone I know"
Christian G on August 2023
**We have now expanded our Foundation Services**Long Hill Masonry has been providing a tradition of expert craftsmanship, quality and service for over 30 years. The company is owned and operated by Joseph Tavella, who himself comes from generations of masons. It is our goal to achieve the highest standard of quality in every project. We guarantee our workmanship for one full year, and most projects are payable upon completion of job take a look at our website at www.longhillmasonry.com
"Joe Cam down to do an estimate and he was very knowledgeable. The Quote was Fair and I had hired them to do the job. They came on time and the job came out great. I would recommend Long Hill to everyone I know"
Christian G on August 2023
All Liberty Construction, Inc. is proud to be serving the area with expert services, with your satisfaction as our ultimate goal. With years of experience in our area of expertise, you can rest assured that your project will receive the high quality craftsmanship that only experience can bring. Call on us today, you will be glad you did!
"Did not show up for 2 appointments consecutively and did not call or write. And his not answering my calls."
Robert J on March 2025
All Liberty Construction, Inc. is proud to be serving the area with expert services, with your satisfaction as our ultimate goal. With years of experience in our area of expertise, you can rest assured that your project will receive the high quality craftsmanship that only experience can bring. Call on us today, you will be glad you did!
"Did not show up for 2 appointments consecutively and did not call or write. And his not answering my calls."
Robert J on March 2025
Razaline Builders Inc 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.
"Great, called quickly, came over immediately, did the job the next day and did it well."
Adam K on March 2023
Razaline Builders Inc 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.
"Great, called quickly, came over immediately, did the job the next day and did it well."
Adam K on March 2023
New Horizon Homes, Inc. is locally owned and operated. We pride ourselves on providing quality work and great customer service. Our customer's complete satisfaction is our top priority! Please call today for your free estimates.
"I dealt with the owner Paul from start to finish. We had purchased all of the materials for the renovation of our bathroom as well as our master bedroom, halls and entire first floor ceiling. Paul and his crew made our entire plan come alive and completed the project in the time span they had promised. We are thrilled with how well every thing went. We had them do an additional project on the exterior of our house after completion of the interior work and this was handled as well. the few minor problems that occurred were rectified with no delay, and to our complete satisfaction."
tom s on December 2017
New Horizon Homes, Inc. is locally owned and operated. We pride ourselves on providing quality work and great customer service. Our customer's complete satisfaction is our top priority! Please call today for your free estimates.
"I dealt with the owner Paul from start to finish. We had purchased all of the materials for the renovation of our bathroom as well as our master bedroom, halls and entire first floor ceiling. Paul and his crew made our entire plan come alive and completed the project in the time span they had promised. We are thrilled with how well every thing went. We had them do an additional project on the exterior of our house after completion of the interior work and this was handled as well. the few minor problems that occurred were rectified with no delay, and to our complete satisfaction."
tom s on December 2017
DeVito's Home Improvement & Design 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.
"Justin and his crew did a great job! Devito's is very professional, as Justin is very knowledgeable and has mamy years experience in the business. They completed the job on time, at the price originally quoted. This particular job took several days. Each day they cleaned up nicely, answered any questions and made sure the job was done right. The year prior, Devitos installed all new windows for us and did an excellent job. I would highly recommend Devitos for any home improvement job."
Robert Y on October 2024
DeVito's Home Improvement & Design 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.
"Justin and his crew did a great job! Devito's is very professional, as Justin is very knowledgeable and has mamy years experience in the business. They completed the job on time, at the price originally quoted. This particular job took several days. Each day they cleaned up nicely, answered any questions and made sure the job was done right. The year prior, Devitos installed all new windows for us and did an excellent job. I would highly recommend Devitos for any home improvement job."
Robert Y on October 2024
Specializing in masonry including: concrete, cement, driveways, patios, stairs, egress windows, entrance to basements, chimneys, stucco, etc.
Specializing in masonry including: concrete, cement, driveways, patios, stairs, egress windows, entrance to basements, chimneys, stucco, etc.
We specialize in general home improvements from paint to other ends like accent walls and built-in’s. for almost a decade K&J Home Improvement has been the go to for home owners.
We specialize in general home improvements from paint to other ends like accent walls and built-in’s. for almost a decade K&J Home Improvement has been the go to for home owners.
Because we have the experience, expertise, and equipment to meet and surpass customer expectations. Our motto is just solutions
Because we have the experience, expertise, and equipment to meet and surpass customer expectations. Our motto is just solutions
We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!
"Eddie and his crew solved my flooding issues with the installation of new pumps and delivered innovation solutions for a complicated problem, in the best efficient ways. His work was clean efficient, immaculate honest and on time. his company was accountable and delivered exactly what I requested and needed. Fortunately for me he will be returning soon to continue to address a few other projects on my list. I'm confident anyone that hires this company will be extremely pleased. A number of my personal friends have hired his team and were pleased with no regrets. Terry"
Theresa L on June 2024
We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!
"Eddie and his crew solved my flooding issues with the installation of new pumps and delivered innovation solutions for a complicated problem, in the best efficient ways. His work was clean efficient, immaculate honest and on time. his company was accountable and delivered exactly what I requested and needed. Fortunately for me he will be returning soon to continue to address a few other projects on my list. I'm confident anyone that hires this company will be extremely pleased. A number of my personal friends have hired his team and were pleased with no regrets. Terry"
Theresa L on June 2024
Basement waterproofing services FAQs
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.
- Islandia
- Central Islip
- Smithtown
- Ronkonkoma
- Nesconset
- Brentwood
- Long Island
- Lake Ronkonkoma
- Islip Terrace
- Commack
- Lake Grove
- Bohemia
- Saint James
- Kings Park
- Islip
- East Islip
- Oakdale
- Holbrook
- Great River
- South Setauket
- Centereach
- East Northport
- West Sayville
- Brightwaters
- Sayville
- Stony Brook
- Holtsville
- Deer Park
- Farmingville
- Bayport
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