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Find Basement leak repair pros in Northport

Memo's Home Renovations, Inc.

5.00(
126
)
Approved Pro

Memo's Home Renovations, Inc.

5.00(
126
)
Approved Pro
Customers say: Quality work
2013 years of experience
Free onsite estimate

Hello! Welcome to Memos Home Renovations Inc, formerly known as Memos Home Improvements. We have been operating on Long Island since 2013, but have over 20 years of experience. We have grown brand loyalty because we deliver excellent results consistently; just look at our reviews- the proof is in the pudding!

"This is our fourth time using Memo’s home renovations, but the first time on such a large project. The extension came out absolutely gorgeous and it is a seamless transition both inside and out. Numerous neighbors have already asked for his contact details because they are so impressed by the high-quality workmanship. A pleasure to work with the whole way through and 100% satisfied with the final extension."

Sean T on November 2025

Hello! Welcome to Memos Home Renovations Inc, formerly known as Memos Home Improvements. We have been operating on Long Island since 2013, but have over 20 years of experience. We have grown brand loyalty because we deliver excellent results consistently; just look at our reviews- the proof is in the pudding!

"This is our fourth time using Memo’s home renovations, but the first time on such a large project. The extension came out absolutely gorgeous and it is a seamless transition both inside and out. Numerous neighbors have already asked for his contact details because they are so impressed by the high-quality workmanship. A pleasure to work with the whole way through and 100% satisfied with the final extension."

Sean T on November 2025


Avatar for Northgate Home Improvement Corp.

Northgate Home Improvement Corp.

4.99(
82
)
Approved Pro

Northgate Home Improvement Corp.

4.99(
82
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1985 years of experience

Please call my mobile phone for faster service: 516-449-8700!! Also, please provide a call back number in your inquiry. Northgate Home Services is a complete home services company which will handle all of your home improvement needs - inside and out. I will personally work with you to design and complete your home improvement project so that it meets all of your needs and expectations. Northgate Home Services is licensed and insured in both Suffolk and Nassau counties.

"I have had Jeff and his guys renovate my ranch house in Melville. He has done 2 bathrooms, my basement and my kitchen. He has always been reliable and done great work. The house looks like new. He quickly corrects any problems and is always in touch. He and his guys are friendly and neat. His estimates are reasonable. I strongly recommend Northgate Home Improvement."

Peter P on March 2025

Please call my mobile phone for faster service: 516-449-8700!! Also, please provide a call back number in your inquiry. Northgate Home Services is a complete home services company which will handle all of your home improvement needs - inside and out. I will personally work with you to design and complete your home improvement project so that it meets all of your needs and expectations. Northgate Home Services is licensed and insured in both Suffolk and Nassau counties.

"I have had Jeff and his guys renovate my ranch house in Melville. He has done 2 bathrooms, my basement and my kitchen. He has always been reliable and done great work. The house looks like new. He quickly corrects any problems and is always in touch. He and his guys are friendly and neat. His estimates are reasonable. I strongly recommend Northgate Home Improvement."

Peter P on March 2025


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


Avatar for Stars and Stripes Home Improvement LLC

Stars and Stripes Home Improvement LLC

4.94(
263
)
Approved Pro

Stars and Stripes Home Improvement LLC

4.94(
263
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
2017 years of experience

With US HOME / STARS AND STRIPES has been servicing homeowners for more than 25 years. Customer preference and priorities are always first. We're very timely with our work and never lose attention to detail. Give us a call for your free estimate.Deal direct with owner. FULLY LICENSED: Suffolk County Nassau County

"The quality of the workmanship is outstanding. Every detail was handled with care, and the finished project looks fantastic. Good communication when/where to pick out titles, paint etc. Thank You! "

April K on November 2025

With US HOME / STARS AND STRIPES has been servicing homeowners for more than 25 years. Customer preference and priorities are always first. We're very timely with our work and never lose attention to detail. Give us a call for your free estimate.Deal direct with owner. FULLY LICENSED: Suffolk County Nassau County

"The quality of the workmanship is outstanding. Every detail was handled with care, and the finished project looks fantastic. Good communication when/where to pick out titles, paint etc. Thank You! "

April K on November 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 AR Home Construction

AR Home Construction

5.00(
29
)
Approved Pro

AR Home Construction

5.00(
29
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1990 years of experience

A.R. Home Construction is a premier design and build construction company specializing in luxury new home construction and high-end remodeling projects. With expertise in all aspects of construction, from conceptual design to final touches, A.R. Home Construction delivers exquisite and luxurious transformations. Our team of skilled professionals is dedicated to exceeding client expectations and creating stunning spaces that reflect unparalleled craftsmanship. Explore luxury and sophistication at our home design showroom, offering a curated selection of top -quality products for your project.

"Completed beyond on expectations. Total Transformation. One comment by our neighbors - You have raised the bar for the community."

Christy V on October 2024

A.R. Home Construction is a premier design and build construction company specializing in luxury new home construction and high-end remodeling projects. With expertise in all aspects of construction, from conceptual design to final touches, A.R. Home Construction delivers exquisite and luxurious transformations. Our team of skilled professionals is dedicated to exceeding client expectations and creating stunning spaces that reflect unparalleled craftsmanship. Explore luxury and sophistication at our home design showroom, offering a curated selection of top -quality products for your project.

"Completed beyond on expectations. Total Transformation. One comment by our neighbors - You have raised the bar for the community."

Christy V on October 2024


"It was awesome working with Anthony, and we’re so happy with the deck he built. He also was super responsive in providing all documentation I needed to obtain a permit. Will be using him for more work! High recommend!"

Nicolette F on June 2025

All Precision Home Improvement, Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity, bound by fairness, honesty and responsibility. For all of your decking and vinyl siding needs Please give us a call today for a quote!

"It was awesome working with Anthony, and we’re so happy with the deck he built. He also was super responsive in providing all documentation I needed to obtain a permit. Will be using him for more work! High recommend!"

Nicolette F on June 2025


Avatar for JBL HOME IMPROVEMENTS INC

JBL HOME IMPROVEMENTS INC

4.68(
259
)
Approved Pro

JBL HOME IMPROVEMENTS INC

4.68(
259
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
2006 years of experience

JBL Home Improvements, Inc, located in St. James, is a family owned and operated remodeling business specializing in residential projects. Owner & Contractor David Kaplan, General Manager Jill Kaplan, along with their team of talented professionals, are dedicated to providing outstanding workmanship and customer service to homeowners who live in their community.

"Extremely pleased with the recommended supplies and workmanship."

Noreen C on September 2025

JBL Home Improvements, Inc, located in St. James, is a family owned and operated remodeling business specializing in residential projects. Owner & Contractor David Kaplan, General Manager Jill Kaplan, along with their team of talented professionals, are dedicated to providing outstanding workmanship and customer service to homeowners who live in their community.

"Extremely pleased with the recommended supplies and workmanship."

Noreen C on September 2025


Avatar for HM Construction Group, Inc. (Long Island Handyman Group)

HM Construction Group, Inc. (Long Island Handyman Group)

4.95(
21
)
Approved Pro

HM Construction Group, Inc. (Long Island Handyman Group)

4.95(
21
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
2017 years of experience

HM Construction Group specializes in home remodeling, construction, property management, handyman tasks and repairs. We do all residential and commercial contracting, from trim to odd jobs. No job is too small or too big. We're a locally owned and operated company with many years of construction and handyman experience. We value honesty and integrity in all aspects of our business. We specialize in handyman work and a variety of related service and repair projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Eddie was great to work with! We had a limited time frame to adhere to town inspections and Eddie and his team knew exactly what we needed and quickly got the job done. The results were great and even the inspector acknowledged the impressive repair. They were able to put a knocked out garage wall back on the foundation and repair the interior dry wall. I would recommend this company for any professional contract work due to their reasonable price, ease to work with and quality of work."

Virginia K on October 2025

HM Construction Group specializes in home remodeling, construction, property management, handyman tasks and repairs. We do all residential and commercial contracting, from trim to odd jobs. No job is too small or too big. We're a locally owned and operated company with many years of construction and handyman experience. We value honesty and integrity in all aspects of our business. We specialize in handyman work and a variety of related service and repair projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"Eddie was great to work with! We had a limited time frame to adhere to town inspections and Eddie and his team knew exactly what we needed and quickly got the job done. The results were great and even the inspector acknowledged the impressive repair. They were able to put a knocked out garage wall back on the foundation and repair the interior dry wall. I would recommend this company for any professional contract work due to their reasonable price, ease to work with and quality of work."

Virginia K on October 2025

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Basement Leak Repair questions, answered by experts

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. 

You may have to dig out drain valves if they are buried under dirt. This method isn’t ideal, and it increases the chance of clogs and damage. Ideally, a drip irrigation system buries drain valves in a gravel pocket so they are easier to access and better-protected. If you have trouble accessing drain valves, hire a sprinkler professional to find them safely and efficiently.

To ensure your basement walls are waterproof, it's crucial to address any existing moisture issues before finishing. Inspect for signs of water seepage, such as dampness or discoloration, and repair any leaks or cracks. Install a vapor barrier to prevent moisture from penetrating the walls, and consider waterproofing paints or coatings.

Proper drainage systems, such as interior or exterior waterproofing, can also be beneficial.

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.

The need for permits in drainage improvement projects depends on your location and the extent of the project. Generally, projects involving significant excavation, alterations to existing drainage systems, or those impacting public drainage systems may require permits. Check with your local building department or authorities to determine the specific permit requirements in your area before starting any drainage improvement work to ensure compliance with local regulations.

The Northport, 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.