Get matched with top basement leak repair pros in Cornwall, CT
There are 4 highly-rated local basement leak repair pros.
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Select your specific project to find the pro for you.
Verified Reviews for Basement Leak Repair pros in Cornwall, CT
*The Angi rating for Basement Leak Repair companies in Cornwall, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Leak Repair needs.
*The HomeAdvisor rating for Basement Leak Repair companies in Cornwall, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Leak Repair needs.
Last update on November 08, 2025
Find Basement leak repair pros in Cornwall
Groundworks-New Haven
101 Powdered Metal Drive
Groundworks-New Haven
101 Powdered Metal Drive
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 local quotes requested
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. HIC.0699918
"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. HIC.0699918
"Professional and efficient tech."
Mark R on April 2025
Empire Construction Waterproofing llc
11 Knorr Rd
Empire Construction Waterproofing llc
11 Knorr Rd
Customers say: Quick response
19 years of experience
Free onsite estimate
We specialize in basement waterproofing, foundation sealing and crack repair, yard drainage, yard grading, gravel road maintenance, small excavation. We pride ourselves on the quality work we provide, while delivering great customer service. Check out all the services we offer below and call -or- click to schedule a free estimate today!
"Great work start to finish! They waterproofed our basement and fixed a foundation crack that was leaking for years. Super professional, quick, and neat work. No more water issues! Highly recommend!"
Tatsiana M on October 2025
We specialize in basement waterproofing, foundation sealing and crack repair, yard drainage, yard grading, gravel road maintenance, small excavation. We pride ourselves on the quality work we provide, while delivering great customer service. Check out all the services we offer below and call -or- click to schedule a free estimate today!
"Great work start to finish! They waterproofed our basement and fixed a foundation crack that was leaking for years. Super professional, quick, and neat work. No more water issues! Highly recommend!"
Tatsiana M on October 2025
Heritage Builders
17 Fairview Avenue
Heritage Builders
17 Fairview Avenue
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience
Heritage Builders is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
"Worked closely with me from beginning to end explained everything step by step"
Chris G on March 2024
Heritage Builders is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
"Worked closely with me from beginning to end explained everything step by step"
Chris G on March 2024
Hammertime Contracting, LLC
107 Merryall Road
Hammertime Contracting, LLC
107 Merryall Road
Customers say: Terrific value
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
40 years of experience
Hammertime Contracting, LLC, is your premier choice for residential addition and remodeling work. We have provided high quality work and friendly customer service since 1985. Our service keeps our customers coming back to us for all their jobs. Big or small we do it all. Call today you'll be happy you did!
"Deck finished and it looks very nice"
Anne G on May 2023
Hammertime Contracting, LLC, is your premier choice for residential addition and remodeling work. We have provided high quality work and friendly customer service since 1985. Our service keeps our customers coming back to us for all their jobs. Big or small we do it all. Call today you'll be happy you did!
"Deck finished and it looks very nice"
Anne G on May 2023
Budget Dry Waterproofing, Inc.
158 Route 81
Budget Dry Waterproofing, Inc.
158 Route 81
Customers say: Quick response
133 local quotes requested
19 years of experience
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.
"Cayden was very professional and polite. This visit was for yearly Maintence of my sump pump. "
Bernadette H on October 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.
"Cayden was very professional and polite. This visit was for yearly Maintence of my sump pump. "
Bernadette H on October 2025
C&C Home Finishing LLC
PO Box 8285
C&C Home Finishing LLC
PO Box 8285
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
53 local quotes requested
We are a family owned and operated business, and our goal at C&C Home Finishing LLC is to not only help you design and build your dream home, but to make the process enjoyable for you. Our work is defined by superior craftsmanship, attention to detail, and technical ability. We always provide outstanding project management, organization, and coordination. We are full-service, licensed & insured contractors.
"C&C completely gutted and renovated our hall bath and partially redid the master bath. The work included repair to downstairs ceilings, painting, as well as replacement of numerous doors, and replacing hardware in other rooms. I cannot say enough good things about this company and crew. They did impeccable work, were patient and helpful when materials delivered incorrectly and immediately helped us figure out solutions that turned out better than our original plans. They were respectful in our home, did amazing daily cleanup and the end result exceeded our expectations, which is not easy to do. Their estimate was spot on, no up-charging or hidden costs and the job was finished two days earlier than estimated. C&C will be our first choice for all our future renovation plans!"
Leah V on January 2025
We are a family owned and operated business, and our goal at C&C Home Finishing LLC is to not only help you design and build your dream home, but to make the process enjoyable for you. Our work is defined by superior craftsmanship, attention to detail, and technical ability. We always provide outstanding project management, organization, and coordination. We are full-service, licensed & insured contractors.
"C&C completely gutted and renovated our hall bath and partially redid the master bath. The work included repair to downstairs ceilings, painting, as well as replacement of numerous doors, and replacing hardware in other rooms. I cannot say enough good things about this company and crew. They did impeccable work, were patient and helpful when materials delivered incorrectly and immediately helped us figure out solutions that turned out better than our original plans. They were respectful in our home, did amazing daily cleanup and the end result exceeded our expectations, which is not easy to do. Their estimate was spot on, no up-charging or hidden costs and the job was finished two days earlier than estimated. C&C will be our first choice for all our future renovation plans!"
Leah V on January 2025
Connecticut Basement Systems, Inc.
33 Progress Avenue
Connecticut Basement Systems, Inc.
33 Progress Avenue
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
79 local quotes requested
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.
"Chuck Stofko was very informative. Was patient in answering all my questions. Spent along time with me reviewing the process and the steps needed to waterproof my basment. I highly recommend him."
Justin F on August 2023
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.
"Chuck Stofko was very informative. Was patient in answering all my questions. Spent along time with me reviewing the process and the steps needed to waterproof my basment. I highly recommend him."
Justin F on August 2023
Owens Corning Basement Finishing System
365 Silas Deane Hwy
Owens Corning Basement Finishing System
365 Silas Deane Hwy
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
237 local quotes requested
Lux Renovations, LLC, has been serving New England homeowners since 2002. We've finished over 8000 basements in New England, usually in 2-3 weeks. Our dedication to customer experience and satisfaction has won us Owens Corning's top customer service ranking nationally for the last 8 years in a row. Something like that does not happen by accident. We are committed to insuring that all of our customers describe their experience with us as "the best contractor experience I ever had". If you are considering a basement finishing project please allow us to show you how Owens Corning has changed the industry with this unique system. A no-charge consultation and design is available. Give us a call today!
"Lux project manager and staff were great! Great attention to detail."
Brian C on December 2022
Lux Renovations, LLC, has been serving New England homeowners since 2002. We've finished over 8000 basements in New England, usually in 2-3 weeks. Our dedication to customer experience and satisfaction has won us Owens Corning's top customer service ranking nationally for the last 8 years in a row. Something like that does not happen by accident. We are committed to insuring that all of our customers describe their experience with us as "the best contractor experience I ever had". If you are considering a basement finishing project please allow us to show you how Owens Corning has changed the industry with this unique system. A no-charge consultation and design is available. Give us a call today!
"Lux project manager and staff were great! Great attention to detail."
Brian C on December 2022
Plow and Property Projects LLC
131 Summit Street
Plow and Property Projects LLC
131 Summit Street
Super Service Award
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
69 local quotes requested
Give us a call or click to request a quote today! Plow and Property Projects LLC is your go-to remodeling expert in Hartford. With our exceptional craftsmanship and attention to detail, we transform homes into stunning spaces. Contact us today for all your remodeling needs.
"Absolutely amazing. They were done in a week and turned my unfinished basement into a fully livable space!"
Katheryn C on July 2025
Give us a call or click to request a quote today! Plow and Property Projects LLC is your go-to remodeling expert in Hartford. With our exceptional craftsmanship and attention to detail, we transform homes into stunning spaces. Contact us today for all your remodeling needs.
"Absolutely amazing. They were done in a week and turned my unfinished basement into a fully livable space!"
Katheryn C on July 2025
FS Sanchez Landscaping LLC
23 Victor St
FS Sanchez Landscaping LLC
23 Victor St
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
146 local quotes requested
We are a small, family owned operated full service landscaping company. Aside from all of your landscaping needs, we also specialize in, hardscaping, rock walls, paver and concrete patios, decks, new driveway construction and more! We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today! We carry a home improvement license and we are fully insured.
"Job done well, on time."
Frank R on March 2024
We are a small, family owned operated full service landscaping company. Aside from all of your landscaping needs, we also specialize in, hardscaping, rock walls, paver and concrete patios, decks, new driveway construction and more! We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today! We carry a home improvement license and we are fully insured.
"Job done well, on time."
Frank R on March 2024
Basement Leak Repair questions, answered by experts
The Cornwall, CT homeowners’ guide to basement leak repair services
From average costs to expert advice, get all the answers you need to get your job done.
An unfinished basement has a lot of potential for a family room or guest suite. So how much does it cost to finish a basement? Read on for all cost factors.
The first step toward a cozy finished basement is adding its framing. How much does it cost to frame a basement? Let's break down the numbers.
Sump pump battery backup costs depend on the type and the design of the system purchased. Follow this guide to learn how to budget for your backup battery.
Even small floods can wreak havoc outside and inside your home. Learn what damage a flood can cause, how to prevent the worst of it, and what to do after flooding.
Creating ceilings in a finished basement can make the space more enjoyable, but also introduce some challenges. Understanding all your basement ceiling options is helpful.
A finished basement adds valuable living space to your home. Learn how much value a finished basement adds to your home and what affects your return on investment.
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What do you need done? We’ll find top pros.
- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"