Top-rated basement leak repair pros.

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    Verified basement leak repair services reviews

Find Basement leak repair pros in Peconic

Avatar for Non Stop Home Improvements Inc

Non Stop Home Improvements Inc

5.00(
55
)
Approved Pro

Non Stop Home Improvements Inc

5.00(
55
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2004 years of experience

**WINTER SPECIAL: $99 ROOF MAINTENANCE!** With almost 20 years in the industry, locally owned and operated Non Stop Home Improvements Inc. is your #1 choice for all of your roofing and siding projects. Specializing in all things roofing and siding, we take pride in our work and make customer satisfaction our main focus. Call us today for your FREE ESTIMATE! We look forward to earning your business! Check us out of InstaGram and Facebook! www.nonstophome.com

"Very smooth highly recommend"

Anthony G on March 2025

**WINTER SPECIAL: $99 ROOF MAINTENANCE!** With almost 20 years in the industry, locally owned and operated Non Stop Home Improvements Inc. is your #1 choice for all of your roofing and siding projects. Specializing in all things roofing and siding, we take pride in our work and make customer satisfaction our main focus. Call us today for your FREE ESTIMATE! We look forward to earning your business! Check us out of InstaGram and Facebook! www.nonstophome.com

"Very smooth highly recommend"

Anthony G on March 2025


Basement Man

4.95(
51
)
Approved Pro

Basement Man

4.95(
51
)
Approved Pro
Super Service Award
Customers say: Terrific value
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
1984 years of experience

Basement Man is your locally owned and operated basement waterproofing specialist. We stand behind and guarantee all of our work, so give us a call anytime for a free estimate.

"I'm renovating an old zombie house, and the basement was in terrible shape - humid, cracked floors and walls and foundation issues both inside and out. I met with several contractors, but most only focused on their own niche, never offering a comprehensive fix. Then I met Jack - Basement Man. He was the only one who looked at the full picture and pointed out issues that others missed. Jack was professional, thorough and honest. He took the time to walk me through my options, never trying to be pushy or upsell me on things I didn't need. He was on-site everyday, led a hard-working team, and turned my basement into a clean, solid and completely revitalized space. His communication was consistent and clear throughout the project. The results were beyond my expectations. I'd hire him again in a heartbeat and highly recommend him to anyone with basement and foundation challenges."

Hayes C on June 2025

Basement Man is your locally owned and operated basement waterproofing specialist. We stand behind and guarantee all of our work, so give us a call anytime for a free estimate.

"I'm renovating an old zombie house, and the basement was in terrible shape - humid, cracked floors and walls and foundation issues both inside and out. I met with several contractors, but most only focused on their own niche, never offering a comprehensive fix. Then I met Jack - Basement Man. He was the only one who looked at the full picture and pointed out issues that others missed. Jack was professional, thorough and honest. He took the time to walk me through my options, never trying to be pushy or upsell me on things I didn't need. He was on-site everyday, led a hard-working team, and turned my basement into a clean, solid and completely revitalized space. His communication was consistent and clear throughout the project. The results were beyond my expectations. I'd hire him again in a heartbeat and highly recommend him to anyone with basement and foundation challenges."

Hayes C on June 2025


"We went over everything that was going to be done step by step both A.J. and Sam explained and guided us in the process. All came in at budget and in a timely manner. They were clean and reliable. I Will use them for my next project! ps. All of their recommendations for plumbing, electrical and painting were fantastic."

VINCENT S on March 2025

Owner owned & operated. Full service remodeling company specializing in medium to large projects. Serving Suffolk county and the Hamptons. High end building and remodeling firm. Expect excellent quality and customer service. Permit and Variance Specialists.

"We went over everything that was going to be done step by step both A.J. and Sam explained and guided us in the process. All came in at budget and in a timely manner. They were clean and reliable. I Will use them for my next project! ps. All of their recommendations for plumbing, electrical and painting were fantastic."

VINCENT S on March 2025


Avatar for Greg Home Improvement, Inc.

Greg Home Improvement, Inc.

4.83(
80
)
Approved Pro

Greg Home Improvement, Inc.

4.83(
80
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
1997 years of experience

Greg Home Improvement Inc is a family owned and operated business . The president, Greg Estevez is the person in charge to estimate and supervise all the work, also one of the most complete of the very experienced working team. We been in business for 19 years performing all phases of construction in New York City, Nassau and Suffolk with a clean record in Consumer Affairs and Better Business Bureau with A+ rating. Greg home improvement Inc do not use subcontractors , only electricians and plumbers. We are licensed and insured.

"No job to small or to big for Greg, they do a good job!"

JOHN O on June 2023

Greg Home Improvement Inc is a family owned and operated business . The president, Greg Estevez is the person in charge to estimate and supervise all the work, also one of the most complete of the very experienced working team. We been in business for 19 years performing all phases of construction in New York City, Nassau and Suffolk with a clean record in Consumer Affairs and Better Business Bureau with A+ rating. Greg home improvement Inc do not use subcontractors , only electricians and plumbers. We are licensed and insured.

"No job to small or to big for Greg, they do a good job!"

JOHN O on June 2023


Basement Man

5.00(
16
)
Approved Pro

Basement Man

5.00(
16
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
1984 years of experience

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.

"Things went great I'd hire him again"

John R on May 2025

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.

"Things went great I'd hire him again"

John R on May 2025


"Chris was efficient and friendly. Got the job done quickly. "

M S on November 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.

"Chris was efficient and friendly. Got the job done quickly. "

M S on November 2025


Avatar for Lorenzo Napolitano Construction Inc.

Lorenzo Napolitano Construction Inc.

4.94(
16
)
Approved Pro

Lorenzo Napolitano Construction Inc.

4.94(
16
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
1994 years of experience

We're dedicated to providing our clients with the very best in concrete installation for driveways, sidewalks, patios, steps, and a variety of other projects. We also specialize in all Stone Work including fireplace installations, pavers, & stucco siding. 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.

"Great knowledgable guys. Very happy with their work"

Vincent R on September 2025

We're dedicated to providing our clients with the very best in concrete installation for driveways, sidewalks, patios, steps, and a variety of other projects. We also specialize in all Stone Work including fireplace installations, pavers, & stucco siding. 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.

"Great knowledgable guys. Very happy with their work"

Vincent R on September 2025


Avatar for New York Waterproofing

New York Waterproofing

4.97(
17
)
Approved Pro

New York Waterproofing

4.97(
17
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2000 years of experience

Struggling with basement water infiltration? New York Waterproofing offers unparalleled expertise in stopping water and hydrostatic pressure, endorsed by merchant engineers globally. Our basement waterproofing service guarantees the best solution nationwide. If competitors offer a better price, it's free! Our innovative process ensures water-tight basements without pumps or drains, even in severe conditions. Within hours, we eliminate water, mold, and odors permanently. Utilizing proprietary technology, our method seals water and moisture effectively and permanently. Plus, our guarantees are permanent and transferable, ensuring lasting peace of mind for homeowners. Projects start at $1299, a fraction of conventional costs, completed in a day! Call (631) 806-9690 for a free estimate. Opt for our efficient, and most affordable solution!

"Wonderful respectable people who work very hard to get the job done."

Joan W on September 2024

Struggling with basement water infiltration? New York Waterproofing offers unparalleled expertise in stopping water and hydrostatic pressure, endorsed by merchant engineers globally. Our basement waterproofing service guarantees the best solution nationwide. If competitors offer a better price, it's free! Our innovative process ensures water-tight basements without pumps or drains, even in severe conditions. Within hours, we eliminate water, mold, and odors permanently. Utilizing proprietary technology, our method seals water and moisture effectively and permanently. Plus, our guarantees are permanent and transferable, ensuring lasting peace of mind for homeowners. Projects start at $1299, a fraction of conventional costs, completed in a day! Call (631) 806-9690 for a free estimate. Opt for our efficient, and most affordable solution!

"Wonderful respectable people who work very hard to get the job done."

Joan W on September 2024


Avatar for Home Healthy Homes, Inc.

Home Healthy Homes, Inc.

4.60(
95
)
Approved Pro

Home Healthy Homes, Inc.

4.60(
95
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
2006 years of experience

Home Healthy Homes is your source for quality basement waterproofing, mold removal, and indoor air quality services. With more than forty years of combined experience helping families heal homes and feel better, Home Healthy Homes knows about the dangers of what you cannot see. Give us a call and a Home Healthy Homes licensed waterproofing, mold, and indoor air quality consultant, will come to your home to provide you with a Free Inspection and on-the-spot Estimate. In an effort to heal your home as quickly as possible, in most cases we are able to complete the job the very same day! We are licensed, mold certified, and members in good standing with the National Association of Waterproofing and Structural Repairs Contractors and the Environmental Solutions Association. Our commitment to healing homes and protecting children and families from the health risks of poor indoor air quality is demonstrated by the care we take and in the quality of the work we do.

"Tey did a good job from what I can see. Of course the proof will be in the next big rainfall"

ellen c on August 2024

Home Healthy Homes is your source for quality basement waterproofing, mold removal, and indoor air quality services. With more than forty years of combined experience helping families heal homes and feel better, Home Healthy Homes knows about the dangers of what you cannot see. Give us a call and a Home Healthy Homes licensed waterproofing, mold, and indoor air quality consultant, will come to your home to provide you with a Free Inspection and on-the-spot Estimate. In an effort to heal your home as quickly as possible, in most cases we are able to complete the job the very same day! We are licensed, mold certified, and members in good standing with the National Association of Waterproofing and Structural Repairs Contractors and the Environmental Solutions Association. Our commitment to healing homes and protecting children and families from the health risks of poor indoor air quality is demonstrated by the care we take and in the quality of the work we do.

"Tey did a good job from what I can see. Of course the proof will be in the next big rainfall"

ellen c on August 2024


Avatar for ProSeal Waterproofing

ProSeal Waterproofing

5.00(
8
)
Approved Pro

ProSeal Waterproofing

5.00(
8
)
Approved Pro
2024 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

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Basement Leak Repair questions, answered by experts

In many cases, yes, a damp basement can be bad for your health. Not only can damp air affect your lungs, but it can promote mold growth and pest infestation. Mold spores can be dangerous to breathe in, as can waste particles from insects and rodents attracted to the moisture. Damp, moldy air can also move up into your living area. As such, it’s crucial to fix any basement moisture problems as soon as they crop up.

Walkout basements cost more than other kinds of basements, and can also increase your risk of leaks as well as a loss of insulation, leading to higher heating and cooling costs. Improperly installed walkout basements may lead to structural issues with your foundation, so ensure you’re working with a contractor who has extensive experience with this kind of basement.

When considering finishing your basement, take into account a few pros and cons:

Pros

  • Can increase the value of your home

  • Separate space from the rest of the house 

  • Customize and personalize the basement to suit your needs and style

  • Increase the amount of living space in your home

Cons

  • May not regain enough value to cover the cost of finishing

  • Lack of natural light if it’s below ground level

  • Moisture or flooding can cause costly damage

  • Installing plumbing and electrical can be messy and costly

External pressure on the basement wall can cause it to bow inward. Soil, heavy with water saturation, is commonly the main culprit. The soil exerts immense pressure on the wall, causing it to fail, at least partially. This is known as hydrostatic pressure—these situations can occur after rainfall or simply due to regular groundwater presence and may be temporary or more permanent.  

The best way to fix dampness in walls is to find the root cause and fix the underlying issue. After that, you’ll need to dry the wall with a heavy-duty fan and potentially a dehumidifier. If the wall has water damage, you can remove the damaged drywall, patch it with a new piece, and then paint it to match the rest of the wall. 

The Peconic, NY homeowners’ guide to basement leak repair services

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