Top-rated foundation, basement or crawlspace waterproofing / encapsulation pros.

Get matched with top foundation, basement or crawlspace waterproofing / encapsulation pros in your area

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Foundation, basement or crawlspace waterproofing / encapsulation pros in Nesconset

Avatar for Concrete & More Inc
Concrete & More Inc
131 Margin Dr East
New on HomeAdvisorNew on Angi
Approved Pro
Concrete & More Inc
131 Margin Dr East
New on AngiNew on HomeAdvisor
Approved Pro
6 years of experience
Free onsite estimate

We’re dedicated to providing our clients with the very best in concrete installation and repair for driveways, sidewalks, patios, steps, and a variety of other projects. With over 1 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. 5+

We’re dedicated to providing our clients with the very best in concrete installation and repair for driveways, sidewalks, patios, steps, and a variety of other projects. With over 1 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. 5+


Avatar for 1-800 WATER DAMAGE of Suffolk County
1-800 WATER DAMAGE of Suffolk County
45 Ramsey Road, Unit 8
4.80(
5
)
Approved Pro
1-800 WATER DAMAGE of Suffolk County
45 Ramsey Road, Unit 8
4.80(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We are not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

"Rich and team were great, had flooding issues and mold in our basement which they got rid of and they were also able to fix our flooding issue and put in a basement waterproofing system"

Darlene W on May 2021

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We are not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

"Rich and team were great, had flooding issues and mold in our basement which they got rid of and they were also able to fix our flooding issue and put in a basement waterproofing system"

Darlene W on May 2021


Avatar for All Liberty Construction, Inc.
All Liberty Construction, Inc.
25 Crystal Beach Boulevard
4.89(
170
)
Approved Pro
All Liberty Construction, Inc.
25 Crystal Beach Boulevard
4.89(
170
)
Approved Pro
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
193 local quotes requested

All Liberty Construction, Inc. is proud to be serving the area with expert services, with your satisfaction as our ultimate goal. With years of experience in our area of expertise, you can rest assured that your project will receive the high quality craftsmanship that only experience can bring. Call on us today, you will be glad you did!

"Nick’s staff is family operated and very capable. They did a great job, communicated well before the job and cleaned up to perfection afterward. A"

Bill J on May 2025

All Liberty Construction, Inc. is proud to be serving the area with expert services, with your satisfaction as our ultimate goal. With years of experience in our area of expertise, you can rest assured that your project will receive the high quality craftsmanship that only experience can bring. Call on us today, you will be glad you did!

"Nick’s staff is family operated and very capable. They did a great job, communicated well before the job and cleaned up to perfection afterward. A"

Bill J on May 2025


Avatar for Foundation Crack Repair, LLC
Foundation Crack Repair, LLC
267 West Main Street
5.00(
4
)
Approved Pro
Foundation Crack Repair, LLC
267 West Main Street
5.00(
4
)
Approved Pro
Customers say: Quick response
22 local quotes requested
6 years of experience

The team at Foundation Crack Repair can diagnose any problems with the concrete, or brick surfaces in and around your Long Island home. We are also here to make sure that you are practicing regular maintenance procedures to ensure that you are keeping things from further repair or replacement. Our team is skilled in ascertaining problems related to concrete foundations and can discuss all of your repair options with you as well as reliable home remodeling services to take the next step with finishing touches. We also make every customer experience flexible and customized so that we can work with you on whatever you need from schedule to budget. Our services go above and beyond any other Long Island because we work with you on every step and every crack that you need to be addressed.

"."

Catherine P on September 2024

The team at Foundation Crack Repair can diagnose any problems with the concrete, or brick surfaces in and around your Long Island home. We are also here to make sure that you are practicing regular maintenance procedures to ensure that you are keeping things from further repair or replacement. Our team is skilled in ascertaining problems related to concrete foundations and can discuss all of your repair options with you as well as reliable home remodeling services to take the next step with finishing touches. We also make every customer experience flexible and customized so that we can work with you on whatever you need from schedule to budget. Our services go above and beyond any other Long Island because we work with you on every step and every crack that you need to be addressed.

"."

Catherine P on September 2024


Avatar for Boccia, Inc.
Boccia, Inc.
168 Broadway
5.00(
4
)
Approved Pro
Boccia, Inc.
168 Broadway
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 local quotes requested

Boccia Inc has been providing basement waterproofing and masonry restoration services since 1955. With thousands of projects completed, the experts at Boccia have accumulated a wealth of knowledge and experience that has been relied upon to waterproof basements, of homes and buildings across Nassau, Suffolk and Queens. We are family owned and operated Servicing Residential And Commercial Properties offering; Basement Waterproofing, Basement Emergency Escape Windows, Stucco Repair & Coatings, Façade Restoration & Waterproofing, Parking Garage Waterproofing, Commercial Roof Repair & Coatings and Masonry. Call 516-747-7727 Today!

"Workers were on time & worked very hard. Cleaned up nicely."

Millie S on November 2023

Boccia Inc has been providing basement waterproofing and masonry restoration services since 1955. With thousands of projects completed, the experts at Boccia have accumulated a wealth of knowledge and experience that has been relied upon to waterproof basements, of homes and buildings across Nassau, Suffolk and Queens. We are family owned and operated Servicing Residential And Commercial Properties offering; Basement Waterproofing, Basement Emergency Escape Windows, Stucco Repair & Coatings, Façade Restoration & Waterproofing, Parking Garage Waterproofing, Commercial Roof Repair & Coatings and Masonry. Call 516-747-7727 Today!

"Workers were on time & worked very hard. Cleaned up nicely."

Millie S on November 2023


Avatar for New Horizon Homes, Inc.
New Horizon Homes, Inc.
1430 Hallock Avenue
4.83(
12
)
Approved Pro
New Horizon Homes, Inc.
1430 Hallock Avenue
4.83(
12
)
Approved Pro
Customers say: Quality work
16 local quotes requested
23 years of experience

New Horizon Homes, Inc. is locally owned and operated. We pride ourselves on providing quality work and great customer service. Our customer's complete satisfaction is our top priority! Please call today for your free estimates.

"I dealt with the owner Paul from start to finish. We had purchased all of the materials for the renovation of our bathroom as well as our master bedroom, halls and entire first floor ceiling. Paul and his crew made our entire plan come alive and completed the project in the time span they had promised. We are thrilled with how well every thing went. We had them do an additional project on the exterior of our house after completion of the interior work and this was handled as well. the few minor problems that occurred were rectified with no delay, and to our complete satisfaction."

tom s on December 2017

New Horizon Homes, Inc. is locally owned and operated. We pride ourselves on providing quality work and great customer service. Our customer's complete satisfaction is our top priority! Please call today for your free estimates.

"I dealt with the owner Paul from start to finish. We had purchased all of the materials for the renovation of our bathroom as well as our master bedroom, halls and entire first floor ceiling. Paul and his crew made our entire plan come alive and completed the project in the time span they had promised. We are thrilled with how well every thing went. We had them do an additional project on the exterior of our house after completion of the interior work and this was handled as well. the few minor problems that occurred were rectified with no delay, and to our complete satisfaction."

tom s on December 2017


Avatar for Coro Construction LLC
Coro Construction LLC
48 3rd St
New on HomeAdvisorNew on Angi
Approved Pro
Coro Construction LLC
48 3rd St
New on AngiNew on HomeAdvisor
Approved Pro
307 local quotes requested
Free onsite estimate

CoroConstruction LLC is a local construction company based in Brentwood, NY. We offer a wide range of services. For more information, give us a call or visit our website! We serve in Brentwood, NY, Baywood NY; Hauppauge NY; North Babylon NY; Nesconset NY; East Islip NY; and the surrounding areas. Construction Service, Construction Company, Complete Construction, Custom Construction, Reliable Construction Concrete, Drywall, Paving, Sealing, Blacktop Driveway

CoroConstruction LLC is a local construction company based in Brentwood, NY. We offer a wide range of services. For more information, give us a call or visit our website! We serve in Brentwood, NY, Baywood NY; Hauppauge NY; North Babylon NY; Nesconset NY; East Islip NY; and the surrounding areas. Construction Service, Construction Company, Complete Construction, Custom Construction, Reliable Construction Concrete, Drywall, Paving, Sealing, Blacktop Driveway


Avatar for BuildRite Pro Inc.
BuildRite Pro Inc.
Suffolk County
4.11(
19
)
Approved Pro
BuildRite Pro Inc.
Suffolk County
4.11(
19
)
Approved Pro
1440 local quotes requested
Free onsite estimate

Here at Bawa Construction Group, we sustain our business on quality and integrity. We are experts in general contracting specializing in all types of remodeling, Concrete work, Hardscaping/Pavers, Kitchen/Bath/ and Basements. We are committed to providing quality services from the beginning to the end of your project or scope of work. We look forward to earning your business. We also offer financing options to all customers dealing with 30+ banks and lenders. Book your FREE ESTIMATE today!!!

"Didn’t make good on a project gone bed."

Gale M on February 2024

Here at Bawa Construction Group, we sustain our business on quality and integrity. We are experts in general contracting specializing in all types of remodeling, Concrete work, Hardscaping/Pavers, Kitchen/Bath/ and Basements. We are committed to providing quality services from the beginning to the end of your project or scope of work. We look forward to earning your business. We also offer financing options to all customers dealing with 30+ banks and lenders. Book your FREE ESTIMATE today!!!

"Didn’t make good on a project gone bed."

Gale M on February 2024


Avatar for New York Waterproofing
New York Waterproofing
5 Bell Circle
4.50(
2
)
Approved Pro
New York Waterproofing
5 Bell Circle
4.50(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
45 local quotes requested

New York Waterproofing is the world's foremost authority on basement waterproofing. Starting at $1299 with a lifetime guarantee, we offer the most competitively priced and hassle-free solutions. Utilizing proprietary technology, we effectively stop water infiltration without the need for pumps or French drains. Our unique process does not require external excavation and most jobs average just three hours, ensuring minimal disruption. We guarantee to beat any verifiable lower offer by a minimum of 10%, underscoring our commitment to providing the best value.

"excellent company. efficient, knowledgeable, job completed in one afternoon with a complete guarantee. Highly recommend NY waterproofing"

Gale M on August 2024

New York Waterproofing is the world's foremost authority on basement waterproofing. Starting at $1299 with a lifetime guarantee, we offer the most competitively priced and hassle-free solutions. Utilizing proprietary technology, we effectively stop water infiltration without the need for pumps or French drains. Our unique process does not require external excavation and most jobs average just three hours, ensuring minimal disruption. We guarantee to beat any verifiable lower offer by a minimum of 10%, underscoring our commitment to providing the best value.

"excellent company. efficient, knowledgeable, job completed in one afternoon with a complete guarantee. Highly recommend NY waterproofing"

Gale M on August 2024


Avatar for Walkway Masonry, Inc.
Walkway Masonry, Inc.
Dix Hills Rd
5.00(
5
)
Approved Pro
Walkway Masonry, Inc.
Dix Hills Rd
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1207 local quotes requested

We are skilled artisans in our craft, possessing a remarkable attention to detail that allows us to transform your vision into reality. What distinguishes us is our commitment to building solid foundations. A sturdy foundation is essential for ensuring the lasting quality of your investment, preventing the need for premature replacements. Contact us today to share your ideas with us and receive a complimentary estimate. Long Island’s Masonry Company - Walkway Masonry Inc specializes in utilizing a range of materials such as stone, blue stone, cobblestone, brick, pavers, and concrete. Our expertise lies in the construction of walls, patios, pool surrounds, steps, porches, walkways, driveways, driveway aprons, ponds, light piers, stone fountains, stone tables, stone benches, stone monoliths, concrete floors, basement entrances, cement platforms, dry wells, French drains, dive rocks, fire pits, fireplaces, and outdoor kitchens.

"Robert Gurr is a knowledgeable professional. His crew and their supervisor were skilled experienced professionals. I've dealt with other contractors who skipped code requirements and made noticeable mistakes. I was lucky to find a top rate company like Walkway. I recommend them to anyone who wants an important project done right."

Frank G on August 2024

We are skilled artisans in our craft, possessing a remarkable attention to detail that allows us to transform your vision into reality. What distinguishes us is our commitment to building solid foundations. A sturdy foundation is essential for ensuring the lasting quality of your investment, preventing the need for premature replacements. Contact us today to share your ideas with us and receive a complimentary estimate. Long Island’s Masonry Company - Walkway Masonry Inc specializes in utilizing a range of materials such as stone, blue stone, cobblestone, brick, pavers, and concrete. Our expertise lies in the construction of walls, patios, pool surrounds, steps, porches, walkways, driveways, driveway aprons, ponds, light piers, stone fountains, stone tables, stone benches, stone monoliths, concrete floors, basement entrances, cement platforms, dry wells, French drains, dive rocks, fire pits, fireplaces, and outdoor kitchens.

"Robert Gurr is a knowledgeable professional. His crew and their supervisor were skilled experienced professionals. I've dealt with other contractors who skipped code requirements and made noticeable mistakes. I was lucky to find a top rate company like Walkway. I recommend them to anyone who wants an important project done right."

Frank G on August 2024

...
Showing 1-10 of 977

Foundation, basement or crawlspace waterproofing / encapsulations FAQs

Cleaning your crawl space is a worthwhile investment for several important reasons. A properly maintained crawl space prevents structural damage by eliminating moisture that can deteriorate wood supports and metal components. It also significantly improves your home's indoor air quality by removing allergens like mold spores and pest droppings that can circulate through your living spaces. 

Additionally, a clean crawl space contributes to better energy efficiency by allowing proper insulation installation and reducing humidity levels that force your HVAC system to work harder.

Several warning signs indicate your crawl space needs professional attention. Look for musty odors throughout your home, unexplained increases in allergy symptoms, higher energy bills, visible pest activity, or moisture issues. 

Other indicators include sagging floors, warped wood, visible mold growth, standing water, or damaged insulation. If your crawl space hasn't been inspected in over a year, or if you've recently experienced flooding or severe weather, it's advisable to have professionals assess the space even without obvious symptoms.

Most crawl space cleaning projects take between one and three days to complete, depending on several factors. Simple debris removal in a small, relatively clean space might be finished in a single day. 

More involved projects that include mold remediation, water damage repair, or pest control require two to three days. For large crawl spaces or those with extensive contamination, the timeline might extend to a week, particularly if additional services like encapsulation are included in the project scope.

You can remain in your home during basic crawl space cleaning. However, if the project involves mold remediation or pest extermination with chemical treatments, temporary relocation might be recommended, especially for household members with respiratory conditions or chemical sensitivities. 

Professional cleaning companies use containment procedures to minimize the spread of dust and contaminants into living spaces, but some disruption is inevitable. Discuss your specific situation with your service provider to determine the best approach for your family's needs.

The homeowners guide to foundation, basement or crawlspace waterproofing / encapsulations
From average costs to expert advice, get all the answers you need to get your job done.
drainage system being installed in trench in yard
Apr 24, 2025
Apr 24, 2025
Rain got you down? There’s a fix for that. See how much it costs to install a drainage system for your yard and start budgeting with this guide.
professional repairing the foundation of a home
Apr 24, 2025
Apr 24, 2025
Budget for foundation repair costs based on factors such as the extent of damage, house size, materials, labor, problem type, and more.
clean crawlspace with insulation and wood beams under house
Apr 24, 2025
Apr 24, 2025
Budget for crawl space repair costs based on factors such as square footage, repair type, accessibility, cleaning, maintenance, labor, and more.
Empty basement with new concrete floor and white walls
Apr 21, 2025
Apr 21, 2025
If you’re planning to install a new foundation, check out budgeting and cost factors to consider.
raising the foundation of a home with a house lift
Apr 21, 2025
Apr 21, 2025
Learn how much it costs to raise a house. Explore how factors like the house size, structure, age, landscaping, and labor rates affect the price.
A man digging out a french drain
Mar 31, 2025
Mar 31, 2025
Budget for French drain costs based on factors including square footage, accessibility, labor, location, landscape repairs, and more.
Share project details to get started.