Top-rated basement waterproofing pros.

Get matched with top basement waterproofing pros in Norwalk, CT

Enter your zip and get matched with up to 5 pros

Need a pro for your basement waterproofing project in Norwalk, CT?

Select your specific project to find the pro for you.

TRUSTED BY NORWALK, CT HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon54
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Norwalk

Avatar for American Dry Basement Systems, LLC

American Dry Basement Systems, LLC

4.90(
103
)
Approved Pro

American Dry Basement Systems, LLC

4.90(
103
)
Approved Pro
Customers say: Quick response
29 years of experience
Free onsite estimate

We serve our customers with pride and work hard to ensure complete satisfaction with every job. Having waterproofed close to 25,000 basements since 1997, you can be sure you'll get the experience, quality, and waterproofing performance you need. Why choose us? We want to help protect your most significant investment from any foundation damage or water control problems. We uniquely use ICC code compliant practices, dust suppression, our proprietary foundation repair technology, and leave your home without any post-repair mess. Whether your basement floods during rainstorms or it just has that musty, "basement odor," we have the solution! We are locally owned and operated. Give us a call today!

"What can I say about American Dry Basement Systems? A few years ago, our area experienced an extraordinary amount of rainfall. My backyard looked like a pond, and water was rising all the way to the back of my house. At the time, there was already some water in the basement, but I believed I had a solid plan in place to manage it—completely unaware of the damage that was about to unfold. The next day, I went downstairs to check the situation and was devastated to find nearly four feet of water filling my basement. Storage totes were floating, along with irreplaceable family artifacts that meant the world to me—pieces of history from loved ones who are no longer here. I immediately tried contacting the fire department, but I wasn’t alone in this situation; many others were dealing with flooding as well. With no other option, I had to purchase another water pump. After a grueling 10-hour ordeal, the water was finally removed. Unfortunately, the damage was already done. I lost cherishe"

philip m on December 2025

We serve our customers with pride and work hard to ensure complete satisfaction with every job. Having waterproofed close to 25,000 basements since 1997, you can be sure you'll get the experience, quality, and waterproofing performance you need. Why choose us? We want to help protect your most significant investment from any foundation damage or water control problems. We uniquely use ICC code compliant practices, dust suppression, our proprietary foundation repair technology, and leave your home without any post-repair mess. Whether your basement floods during rainstorms or it just has that musty, "basement odor," we have the solution! We are locally owned and operated. Give us a call today!

"What can I say about American Dry Basement Systems? A few years ago, our area experienced an extraordinary amount of rainfall. My backyard looked like a pond, and water was rising all the way to the back of my house. At the time, there was already some water in the basement, but I believed I had a solid plan in place to manage it—completely unaware of the damage that was about to unfold. The next day, I went downstairs to check the situation and was devastated to find nearly four feet of water filling my basement. Storage totes were floating, along with irreplaceable family artifacts that meant the world to me—pieces of history from loved ones who are no longer here. I immediately tried contacting the fire department, but I wasn’t alone in this situation; many others were dealing with flooding as well. With no other option, I had to purchase another water pump. After a grueling 10-hour ordeal, the water was finally removed. Unfortunately, the damage was already done. I lost cherishe"

philip m on December 2025


Avatar for WEATHER-TITE WATERPROOFING INC.

WEATHER-TITE WATERPROOFING INC.

4.93(
92
)
Approved Pro

WEATHER-TITE WATERPROOFING INC.

4.93(
92
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
34 years of experience

Weather-tite Waterproofing is a family owned, full service basement waterproofing company that has been serving our customers since 1992.All work is performed by our trained,professional staff,never by sub-contractors.All inspections are done by owner after which you shall receive a free, written estimate.

"Excellent service. Courteous, prompt, clean, friendly and great attention to detail."

Shari M on July 2025

Weather-tite Waterproofing is a family owned, full service basement waterproofing company that has been serving our customers since 1992.All work is performed by our trained,professional staff,never by sub-contractors.All inspections are done by owner after which you shall receive a free, written estimate.

"Excellent service. Courteous, prompt, clean, friendly and great attention to detail."

Shari M on July 2025


Avatar for Ron's Masonry

Ron's Masonry

4.96(
27
)
Approved Pro

Ron's Masonry

4.96(
27
)
Approved Pro
Customers say: Super punctual
31 years of experience
Emergency services offered

At Ron's Masonry, we pride our company on reliability, great communication, integrity and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business.

"Did an amazing job, good communication, and a quick turnaround. "

Charlotte K on December 2025

At Ron's Masonry, we pride our company on reliability, great communication, integrity and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business.

"Did an amazing job, good communication, and a quick turnaround. "

Charlotte K on December 2025


"Job well done, timely, good suggestions for future work, no pressure was a good experience "

Michael F on January 2026

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.

"Job well done, timely, good suggestions for future work, no pressure was a good experience "

Michael F on January 2026


Avatar for Empire Construction Waterproofing llc

Empire Construction Waterproofing llc

5.00(
15
)
Approved Pro

Empire Construction Waterproofing llc

5.00(
15
)
Approved Pro
Super Service Award
Customers say: Quick response
20 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


Avatar for Connecticut Basement Systems, Inc.

Connecticut Basement Systems, Inc.

4.47(
164
)
Approved Pro

Connecticut Basement Systems, Inc.

4.47(
164
)
Approved Pro
Customers say: Super punctual
39 years of experience
Free onsite estimate

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.

"The visit to my home in West Hartford was a nice affair. The technician explained everything. He even mentioned that I had to get a plumber to remove the sink away from the wall, so the work could be done to repair the window and wall area, but I did not hear him mention that I had to pull permits. The problem with this permit pulling issue is that I never initiated the pulling of permits, and this also is a red flag for me. The pulling of a permit should always be done by the contractor who is doing the job. It ensures that the permit pulled is to code. It ensures that the permit pulled follows local ordinance and CT. laws and statutes regarding construction, and that also includes consumer protection mandates in the State of Connecticut. Having me pull the permit to allow the CT. Basement Systems to do the work is a big, red flag, and it can result in my home owner's policy being cancelled if the permits are pulled either after the fact, or the permits pulled do not line up with the inspection process. I can also be fined by the town for pulling permits after the fact too. I've had my furnace replaced. The plumbing company who replaced the furnace followed state law and guidelines. Especially, since funding provided through a loan from a Credit Union chosen by the State of Connecticut ensured that permits were pulled correctly, legally. The same applies to my roof being replaced. The roofing company pulled the permit. Having a customer whom you are charging in excess of $20,000 to pull a permit is putting that customer in legal jeopardy, which is unacceptable. If I sell my house, and I had the work done in my basement, and the permits were pulled by me. The person who bought my house could sue me for an incorrectly pulled permit. How would I answer questions from the town about the technical aspects of the job, which should be handled by the contractor directly? Why introduce another layer of bureaucracy that slows down communication? Have the contractor pull the permit, so that the contractor and the municipality, town or city can communicate directly, and the pulling of the permit is done correctly and legally. How would I know, when the town should be doing an inspection during or while the job is being completed or after the job is completed? This should never be a requirement of the customer to pull the permit for a job to be done. The tech who visited my home mentioned that I had to hire a plumber to move a basement sink, but they did not mention about pulling of permits, but I went and re-read the quote again, and it is at the bottom of the quote page under "Customer Will" that states not only hiring of the plumber but also pulling permits and scheduling inspections. I did not have this job financed by CT. Basement Systems. I, instead, decided to get a home equity loan. If I did not get the home equity loan, then decided to go with CT. Basement Systems financing, then I would be screwed. The best thing I did was slow the process down, seek my own financing, and ask larger, bigger, deeper questions that prevented me from making a mistake by allowing this work to be done."

Marcus L 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.

"The visit to my home in West Hartford was a nice affair. The technician explained everything. He even mentioned that I had to get a plumber to remove the sink away from the wall, so the work could be done to repair the window and wall area, but I did not hear him mention that I had to pull permits. The problem with this permit pulling issue is that I never initiated the pulling of permits, and this also is a red flag for me. The pulling of a permit should always be done by the contractor who is doing the job. It ensures that the permit pulled is to code. It ensures that the permit pulled follows local ordinance and CT. laws and statutes regarding construction, and that also includes consumer protection mandates in the State of Connecticut. Having me pull the permit to allow the CT. Basement Systems to do the work is a big, red flag, and it can result in my home owner's policy being cancelled if the permits are pulled either after the fact, or the permits pulled do not line up with the inspection process. I can also be fined by the town for pulling permits after the fact too. I've had my furnace replaced. The plumbing company who replaced the furnace followed state law and guidelines. Especially, since funding provided through a loan from a Credit Union chosen by the State of Connecticut ensured that permits were pulled correctly, legally. The same applies to my roof being replaced. The roofing company pulled the permit. Having a customer whom you are charging in excess of $20,000 to pull a permit is putting that customer in legal jeopardy, which is unacceptable. If I sell my house, and I had the work done in my basement, and the permits were pulled by me. The person who bought my house could sue me for an incorrectly pulled permit. How would I answer questions from the town about the technical aspects of the job, which should be handled by the contractor directly? Why introduce another layer of bureaucracy that slows down communication? Have the contractor pull the permit, so that the contractor and the municipality, town or city can communicate directly, and the pulling of the permit is done correctly and legally. How would I know, when the town should be doing an inspection during or while the job is being completed or after the job is completed? This should never be a requirement of the customer to pull the permit for a job to be done. The tech who visited my home mentioned that I had to hire a plumber to move a basement sink, but they did not mention about pulling of permits, but I went and re-read the quote again, and it is at the bottom of the quote page under "Customer Will" that states not only hiring of the plumber but also pulling permits and scheduling inspections. I did not have this job financed by CT. Basement Systems. I, instead, decided to get a home equity loan. If I did not get the home equity loan, then decided to go with CT. Basement Systems financing, then I would be screwed. The best thing I did was slow the process down, seek my own financing, and ask larger, bigger, deeper questions that prevented me from making a mistake by allowing this work to be done."

Marcus L on August 2023


Avatar for ProSeal Waterproofing

ProSeal Waterproofing

5.00(
8
)
Approved Pro

ProSeal Waterproofing

5.00(
8
)
Approved Pro
2 years of experience
Free onsite estimate

I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

"Alex was amazing!! We had a crack in our foundation that another company attempted to repair numerous times. We were fortunate enough to hear about ProSeal and I am happy to report not only did Alex repair the crack to near perfection but the work was done timely, neatly and his customer service skills are top notch. I would HIGHLY recommend ProSeal for all of your foundation needs."

Angela M on October 2025

I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

"Alex was amazing!! We had a crack in our foundation that another company attempted to repair numerous times. We were fortunate enough to hear about ProSeal and I am happy to report not only did Alex repair the crack to near perfection but the work was done timely, neatly and his customer service skills are top notch. I would HIGHLY recommend ProSeal for all of your foundation needs."

Angela M on October 2025


Avatar for Omega Development LLC

Omega Development LLC

4.67(
12
)
Approved Pro

Omega Development LLC

4.67(
12
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
22 years of experience

At Omega Development LLC, we bring your home improvement dreams to life with precision, quality, and craftsmanship you can trust. Our licensed and insured team specializes in home renovations, custom construction, kitchen and bathroom remodeling, additions, and exterior upgrades. With years of experience in the residential construction industry, we pride ourselves on delivering exceptional results, honest communication, and dependable service—from the first consultation to project completion. Whether you’re looking to modernize your space, increase your property value, or build your dream home, Omega Development LLC is your trusted partner for reliable, high-quality construction solutions. ✅ Our Services Include: Full Home Renovations & Remodels Kitchen & Bathroom Remodeling Home Additions & Basement Finishing Roofing, Siding & Exterior Improvements Custom Home Builds & Design-Build Services & more...

"I recently had an asphalt driveway put in. The crew was very professional. The driveway is smooth and very happy with the quality of the new driveway. They even went above and beyond and put in a small drainage area for water runoff. It has definitely improved the appearance of my home."

Elaine A on February 2025

At Omega Development LLC, we bring your home improvement dreams to life with precision, quality, and craftsmanship you can trust. Our licensed and insured team specializes in home renovations, custom construction, kitchen and bathroom remodeling, additions, and exterior upgrades. With years of experience in the residential construction industry, we pride ourselves on delivering exceptional results, honest communication, and dependable service—from the first consultation to project completion. Whether you’re looking to modernize your space, increase your property value, or build your dream home, Omega Development LLC is your trusted partner for reliable, high-quality construction solutions. ✅ Our Services Include: Full Home Renovations & Remodels Kitchen & Bathroom Remodeling Home Additions & Basement Finishing Roofing, Siding & Exterior Improvements Custom Home Builds & Design-Build Services & more...

"I recently had an asphalt driveway put in. The crew was very professional. The driveway is smooth and very happy with the quality of the new driveway. They even went above and beyond and put in a small drainage area for water runoff. It has definitely improved the appearance of my home."

Elaine A on February 2025


Avatar for TITO'S HOME IMPROVEMENT CONTRACTORS

TITO'S HOME IMPROVEMENT CONTRACTORS

4.26(
23
)
Approved Pro

TITO'S HOME IMPROVEMENT CONTRACTORS

4.26(
23
)
Approved Pro
Customers say: Super punctual

Tito's Home Improvement has been around since the early 1990s and has become one of the most widely recognized home remodeling companies in the area. We bring a new level of excellence to the table; from affordability and unparalleled craftsmanship, to providing an astounding selection of services, we know what it takes to be the best for our customers.With our experience and our dedication to providing nothing but the finest services, why would you want to go anywhere else for your home improvement and home remodeling needs? Contact the professionals at Tito's Home Improvement today and let us get to work for you!

"Excellent - Tito was extremely responsive and his team did excellent work. I shopped around and got multiple quotes, and his was the lowest. More importantly, he had done work on a number of my neighbors’ homes and came highly recommended. His team was very responsive and got the work done on a short time frame which was great because I needed much of the work done before I moved in to my new home. My floors and skylights look great and I have full confidence in his work. One thing which I really liked is the fact that he is constantly in communication, is always available, and is local. The last part is important because he understands the importance of reputation which gives me full confidence in his work. I will definitely be coming back to him again for any future work on my house and wholeheartedly recommend!"

Russell P on June 2022

Tito's Home Improvement has been around since the early 1990s and has become one of the most widely recognized home remodeling companies in the area. We bring a new level of excellence to the table; from affordability and unparalleled craftsmanship, to providing an astounding selection of services, we know what it takes to be the best for our customers.With our experience and our dedication to providing nothing but the finest services, why would you want to go anywhere else for your home improvement and home remodeling needs? Contact the professionals at Tito's Home Improvement today and let us get to work for you!

"Excellent - Tito was extremely responsive and his team did excellent work. I shopped around and got multiple quotes, and his was the lowest. More importantly, he had done work on a number of my neighbors’ homes and came highly recommended. His team was very responsive and got the work done on a short time frame which was great because I needed much of the work done before I moved in to my new home. My floors and skylights look great and I have full confidence in his work. One thing which I really liked is the fact that he is constantly in communication, is always available, and is local. The last part is important because he understands the importance of reputation which gives me full confidence in his work. I will definitely be coming back to him again for any future work on my house and wholeheartedly recommend!"

Russell P on June 2022


Avatar for AA Outdoor Services, LLC

AA Outdoor Services, LLC

4.77(
24
)
Approved Pro

AA Outdoor Services, LLC

4.77(
24
)
Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
36 years of experience

We're dedicated to providing our clients with the very best in asphalt and concrete installation for driveways, sidewalks, patios, steps, and a variety of other projects. With over 25 years of industry experience, we take and enormous amount of pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Vincent done an awesome job on re leveling my concrete sill wall in my garage. On budget on time and very professional. Would recommend him and his services for anyone."

John C on March 2021

We're dedicated to providing our clients with the very best in asphalt and concrete installation for driveways, sidewalks, patios, steps, and a variety of other projects. With over 25 years of industry experience, we take and enormous amount of pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Vincent done an awesome job on re leveling my concrete sill wall in my garage. On budget on time and very professional. Would recommend him and his services for anyone."

John C on March 2021

...
Showing 1-10 of 507
Basement Waterproofing questions, answered by experts

It’s normally possible to stay in a house with water damage, but it depends on many factors. If the water damage is minor, like from a small plumbing or window leak, there’s minimal risk to you and your family members, especially if you catch it early. Major water damage from flooding is more likely to lead to mold growth and electrical issues, which means it’s safer to relocate until you have a professional dry out the area and treat the mold.

The best basement waterproofing method depends on the issue you’re trying to solve. For example, if you have standing water on your basement floor, a floor drain or sump pump might be your best solution. Or, if you have standing water around your foundation, installing a drainage system that protects your basement and foundation might be better.

In many homes, an unfinished basement is an ideal place for an in-ground pool. The concrete floors, protection against water damage, and access to the ground below your home make this a large contender. Speak with a local basement remodeling contractor to ensure your space is right for the large construction.

Mold and other fungi love moisture, so the best way to prevent mold growth after water damage is to remove as much moisture as possible. First, find the source of the water or moisture, such as a leak or clogged gutters, and correct the problem. Next, remove standing water, vacuum up puddles with a shop vacuum, and run blower fans and dehumidifiers for 24 to 72 hours. Once you've removed all traces of moisture, disinfect the area using either vinegar or bleach to kill any remaining mold spores.

Yes, if your crawl space is prone to humidity, a dehumidifier can help keep it dry. For use in a crawl space, you’ll need a high-capacity and high-efficiency dehumidifier with built-in air filtration. It’s also wise to purchase one with a self-draining feature. Otherwise, you’ll need to climb into the crawl space to empty the dehumidifier.

The Norwalk, CT 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.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"