Get matched with top basement waterproofing pros in New Haven, CT
There are 12 highly-rated local basement waterproofing pros.
Verified Reviews for Basement Waterproofing pros in New Haven, CT
*The Angi rating for Basement Waterproofing companies in New Haven, CT 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 New Haven, CT 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 17, 2025
Basement waterproofing pros in New Haven
Connecticut Basement Systems is your trusted expert for basement waterproofing, crawl space repair, basement finishing, and foundation repair. Using patented, warrantied products, we provide permanent solutions for your home. Have a wet, flooded basement or crawl space? Tilted or bowing foundation walls? A basement you want to finish? We have a solution. We proudly serve homeowners and businesses all throughout Connecticut & Westchester County, NY. Call us today for a free inspection and no-obligation, estimate. Financing available. Additional phones - (203) 881-5090. Award winning.
"My daughter is getting married this week and we have a house full of guests from out of town. It would not be a very good time to also have to deal with a flood. The technician just left. He was pleasant and clearly knew his business. He did a professional job of cleaning out the sludge, showing me the workings of the system and letting me know realistic expectations on the motor life. That said, I decided to err on the side of caution and replace the motor which he had with him. He finished up and cleaned up everything – then last we walked outside to be sure the ejection area was in order. I can rest assured that what was a panic situation just a short time ago is dealt with."
Kevin K on July 2018
Connecticut Basement Systems is your trusted expert for basement waterproofing, crawl space repair, basement finishing, and foundation repair. Using patented, warrantied products, we provide permanent solutions for your home. Have a wet, flooded basement or crawl space? Tilted or bowing foundation walls? A basement you want to finish? We have a solution. We proudly serve homeowners and businesses all throughout Connecticut & Westchester County, NY. Call us today for a free inspection and no-obligation, estimate. Financing available. Additional phones - (203) 881-5090. Award winning.
"My daughter is getting married this week and we have a house full of guests from out of town. It would not be a very good time to also have to deal with a flood. The technician just left. He was pleasant and clearly knew his business. He did a professional job of cleaning out the sludge, showing me the workings of the system and letting me know realistic expectations on the motor life. That said, I decided to err on the side of caution and replace the motor which he had with him. He finished up and cleaned up everything – then last we walked outside to be sure the ejection area was in order. I can rest assured that what was a panic situation just a short time ago is dealt with."
Kevin K on July 2018
Groundworks is North America’s leading foundation repair and water management solutions company. Groundworks has been serving homeowners across the U.S. and Canada for decades, providing quality home repair solutions. Groundworks is a BBB-accredited business and a multi-time recipient of the Angi Super Service Award. Our 50-plus years of combined expertise brings Connecticut homeowners innovative solutions and industry-leading warranties to protect their biggest investment, their homes.
"Professional and efficient tech."
Mark R on April 2025
Groundworks is North America’s leading foundation repair and water management solutions company. Groundworks has been serving homeowners across the U.S. and Canada for decades, providing quality home repair solutions. Groundworks is a BBB-accredited business and a multi-time recipient of the Angi Super Service Award. Our 50-plus years of combined expertise brings Connecticut homeowners innovative solutions and industry-leading warranties to protect their biggest investment, their homes.
"Professional and efficient tech."
Mark R on April 2025
We have the experience and dedication to get the job done right! Specializing in roofing services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!
"Rivera Roofing did an exceptional job repairing my 15-year-old roof. They were quick, efficient, organized, and left everything spotless. A special thanks to Jose for his kindness and outstanding customer service throughout the process. Highly recommend any roofing needs!"
Nelson V on January 2025
We have the experience and dedication to get the job done right! Specializing in roofing services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!
"Rivera Roofing did an exceptional job repairing my 15-year-old roof. They were quick, efficient, organized, and left everything spotless. A special thanks to Jose for his kindness and outstanding customer service throughout the process. Highly recommend any roofing needs!"
Nelson V on January 2025
Better Business Bureau Accredited firm with an A+ Rating. 2017 Connecticut Better Business Bureau Marketplace Excellence Awards NOMINEE for SUPERIOR CUSTOMER SERVICE. Established in 1998, R.A.M. Contracting, Inc. is Robertson Michaud company specializing in Custom Projects. We are based in Connecticut and are one of the most highly regarded companies for our craftsmanship, attention to detail and customer service. Fully licensed, insured and bondable. We service Federal, Industrial, Commercial and Select Residential clientele. Registered with the United States Government Systems for Award Management (SAMS), State of Connecticut Department of Consumer Protection and Vermont Office Of Professional Regulation. We are an Environmental Protection Agency Lead Safe Certified Firm. Please provide details about your project in the Homeowner Description. Leads without any description will not be accepted. For more information please call us at 860-413-2263. We are available 7 days a week.
"Very responsive, clear and professional. Gave me information I needed and then some."
Vivian Z on July 2018
Better Business Bureau Accredited firm with an A+ Rating. 2017 Connecticut Better Business Bureau Marketplace Excellence Awards NOMINEE for SUPERIOR CUSTOMER SERVICE. Established in 1998, R.A.M. Contracting, Inc. is Robertson Michaud company specializing in Custom Projects. We are based in Connecticut and are one of the most highly regarded companies for our craftsmanship, attention to detail and customer service. Fully licensed, insured and bondable. We service Federal, Industrial, Commercial and Select Residential clientele. Registered with the United States Government Systems for Award Management (SAMS), State of Connecticut Department of Consumer Protection and Vermont Office Of Professional Regulation. We are an Environmental Protection Agency Lead Safe Certified Firm. Please provide details about your project in the Homeowner Description. Leads without any description will not be accepted. For more information please call us at 860-413-2263. We are available 7 days a week.
"Very responsive, clear and professional. Gave me information I needed and then some."
Vivian Z on July 2018
We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!
"Outstanding service and value. Prostar Waterproofing and Construction were one of the most responsive and professional businesses I've come across. From start to finish, a pleasure to work with. They are extremely responsive, and will always follow through to ensure the customer is being taken care of. Calls, questions, estimates - all of this is done on time, as promised. Paul, who did the consultation, was extremely knowledgeable and did not try to upsell anything. The crew that came out were professional, and maintained a clean working area. Dust control was excellent. Their prices are very reasonable, and they will not nickel and dime. They will work with you throughout the project. Quality work, honest people. So far the system they put in place has been working as advertised. Would highly recommend this company."
Keith L on December 2024
We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!
"Outstanding service and value. Prostar Waterproofing and Construction were one of the most responsive and professional businesses I've come across. From start to finish, a pleasure to work with. They are extremely responsive, and will always follow through to ensure the customer is being taken care of. Calls, questions, estimates - all of this is done on time, as promised. Paul, who did the consultation, was extremely knowledgeable and did not try to upsell anything. The crew that came out were professional, and maintained a clean working area. Dust control was excellent. Their prices are very reasonable, and they will not nickel and dime. They will work with you throughout the project. Quality work, honest people. So far the system they put in place has been working as advertised. Would highly recommend this company."
Keith L on December 2024
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers 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.
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers 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.
Budget Dry Waterproofing is a waterproofing company founded on the belief that quality home improvement work does not need to break the bank. We are dedicated to providing excellent service.
"Caitlin got me on the schedule immediately to prevent further damage. Nic arrived on time and was professional and knowledgeable. My needs were addressed quickly and efficiently. I would recommend this business to all."
Julie R on May 2025
Budget Dry Waterproofing is a waterproofing company founded on the belief that quality home improvement work does not need to break the bank. We are dedicated to providing excellent service.
"Caitlin got me on the schedule immediately to prevent further damage. Nic arrived on time and was professional and knowledgeable. My needs were addressed quickly and efficiently. I would recommend this business to all."
Julie R on May 2025
A&A Waterproofing is a locally owned family company that 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. The main reason why we keep our five star rating is our finished product and customer service.
"My experience with both Alan Sr. and his son Alan was fantastic. Alan Jr. gave me a detailed estimate and then explained every aspect of the whole project. Alan Sr. showed up on time with a friendly and very efficient crew, expertly led by Jason, and they finished the job in one day! I’m thoroughly impressed and I will certainly recommend A & A to anyone who wants a great job, for a very reasonable price done on time."
John C on May 2025
A&A Waterproofing is a locally owned family company that 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. The main reason why we keep our five star rating is our finished product and customer service.
"My experience with both Alan Sr. and his son Alan was fantastic. Alan Jr. gave me a detailed estimate and then explained every aspect of the whole project. Alan Sr. showed up on time with a friendly and very efficient crew, expertly led by Jason, and they finished the job in one day! I’m thoroughly impressed and I will certainly recommend A & A to anyone who wants a great job, for a very reasonable price done on time."
John C on May 2025
Work completed by Connecticut Basement Systems, Inc., is warranted for lifetime of your home. Satisfaction is guaranteed and we assure prompt reply to all inquiries. Free estimates and financing are available. We've wowed over 30,000 customers since 1987. We have an A plus Better Business Bureau rating. Check us out for unbiased reviews and customer testimonials.
"Overall, working with the company was a good experience."
Marcy W on October 2024
Work completed by Connecticut Basement Systems, Inc., is warranted for lifetime of your home. Satisfaction is guaranteed and we assure prompt reply to all inquiries. Free estimates and financing are available. We've wowed over 30,000 customers since 1987. We have an A plus Better Business Bureau rating. Check us out for unbiased reviews and customer testimonials.
"Overall, working with the company was a good experience."
Marcy W on October 2024
"Very professional and great company from start to finish highly recommend. Couldn't be any happier. 10 out of 10 from us"
mike d on May 2025
"Very professional and great company from start to finish highly recommend. Couldn't be any happier. 10 out of 10 from us"
mike d on May 2025
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.
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