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Foundation, basement or crawlspace waterproofing / encapsulation pros in Nassau

Avatar for LaBello's Masonry and Waterproofing, LLC
LaBello's Masonry and Waterproofing, LLC
696 5th Avenue
3.99(
141
)
Approved Pro
LaBello's Masonry and Waterproofing, LLC
696 5th Avenue
3.99(
141
)
Approved Pro
Customers say: Quality work
43 local quotes requested
24 years of experience

When it comes to waterproofing, LaBello's Masonry & Waterproofing prides itself on its philosophy of first determining the root cause for water seepage in the building before taking action. Only after that determination has been made can design on an appropriate and lasting waterproofing solution be created. LaBello’s Masonry & Waterproofing services to numerous clients including building owners, property managers and architects. We do quality masonry restoration work and waterproofing and we always do it at competitive rates.

"Taking down my last review. He came back out to help. man of his word 5 stars."

Daniel r on May 2025

When it comes to waterproofing, LaBello's Masonry & Waterproofing prides itself on its philosophy of first determining the root cause for water seepage in the building before taking action. Only after that determination has been made can design on an appropriate and lasting waterproofing solution be created. LaBello’s Masonry & Waterproofing services to numerous clients including building owners, property managers and architects. We do quality masonry restoration work and waterproofing and we always do it at competitive rates.

"Taking down my last review. He came back out to help. man of his word 5 stars."

Daniel r on May 2025


Rimco Spray Foam Insulation and Weatherization
111 Picard Road
New on HomeAdvisorNew on Angi
Approved Pro
Rimco Spray Foam Insulation and Weatherization
111 Picard Road
New on AngiNew on HomeAdvisor
Approved Pro
5 years of experience
Free onsite estimate

I am a locally owned, and operated business that is committed to excellence in every aspect of word. I uphold a standard of integrity bound by fairness, honesty, and personal responsibility. My distinction is the quality of service that I bring to the customer, which would be the same way I would treat family, or a close friend. ** WE ARE FULLY INSURED! ** CALL US TODAY AT: 518-948-0465 TO LEARN MORE ABOUT OUR VETERAN DISCOUNT RATES!

I am a locally owned, and operated business that is committed to excellence in every aspect of word. I uphold a standard of integrity bound by fairness, honesty, and personal responsibility. My distinction is the quality of service that I bring to the customer, which would be the same way I would treat family, or a close friend. ** WE ARE FULLY INSURED! ** CALL US TODAY AT: 518-948-0465 TO LEARN MORE ABOUT OUR VETERAN DISCOUNT RATES!


Avatar for Expediant Environmental Solutions, LLC
Expediant Environmental Solutions, LLC
3657 Albany Post Road
4.33(
357
)
Approved Pro
Expediant Environmental Solutions, LLC
3657 Albany Post Road
4.33(
357
)
Approved Pro
Customers say: True professional
333 local quotes requested
30 years of experience

Expediant Environmental is committed to excellence and continues to be an outstanding business with over 25 years of experience. Our company prides itself on an outstanding record of quality service. We specialize in your whole home as a system approach. So when it comes to mold removal, insulation, or waterproofing we never forget to make sure it does not have a negative effect on another function of your home. Wet Crawl Space? Expediant offers CleanSpace encapsulation system to control moisture and dampness in the crawl space. We are an authorized Contractor Nation installer. Radon problem? That's no problem for us. Got bed bugs or rodents? We can make them disappear! Expediant offers a wide variety of services to meet all your pest control needs from preventative maintenance to treatment of active problems. See our website! www.Expedianthomesolutions.com

"They got rid of the mold in my house promptly and professionally. Thanks to Expedient Environmental Solutions I am able to live in a safe and clean home."

Wayne P on February 2025

Expediant Environmental is committed to excellence and continues to be an outstanding business with over 25 years of experience. Our company prides itself on an outstanding record of quality service. We specialize in your whole home as a system approach. So when it comes to mold removal, insulation, or waterproofing we never forget to make sure it does not have a negative effect on another function of your home. Wet Crawl Space? Expediant offers CleanSpace encapsulation system to control moisture and dampness in the crawl space. We are an authorized Contractor Nation installer. Radon problem? That's no problem for us. Got bed bugs or rodents? We can make them disappear! Expediant offers a wide variety of services to meet all your pest control needs from preventative maintenance to treatment of active problems. See our website! www.Expedianthomesolutions.com

"They got rid of the mold in my house promptly and professionally. Thanks to Expedient Environmental Solutions I am able to live in a safe and clean home."

Wayne P on February 2025


Avatar for Adirondack Basement Systems, Inc.
Adirondack Basement Systems, Inc.
4 Jones Road
4.81(
10
)
Approved Pro
Adirondack Basement Systems, Inc.
4 Jones Road
4.81(
10
)
Approved Pro
Customers say: Quick response
45 local quotes requested
27 years of experience

As technology grows, so does our business. That is why we offer customers proven solutions that keep basements and dirt crawl spaces dry ALL of the time. We believe that all parts of a home should be functioning properly - so we listen to our customers in order to develop a specialized solution that fully meets their expectations. With numerous integrative and sophisticated product lines, we can help almost all situations!

"We had Adirondack basement come out to waterproof our basement that got water whenever there was heavy rain or snow melt. The entire process was stress free and organized. Jeff was our Sales rep and was extremely informative about the entire process. The contractors that came out, Tim and Chris, were very friendly and worked efficiently. It was the easiest and stress-free experience I?ve had with ANY work for the house. I highly recommend Adirondack basement for any work needed for basements."

p M on May 2025

As technology grows, so does our business. That is why we offer customers proven solutions that keep basements and dirt crawl spaces dry ALL of the time. We believe that all parts of a home should be functioning properly - so we listen to our customers in order to develop a specialized solution that fully meets their expectations. With numerous integrative and sophisticated product lines, we can help almost all situations!

"We had Adirondack basement come out to waterproof our basement that got water whenever there was heavy rain or snow melt. The entire process was stress free and organized. Jeff was our Sales rep and was extremely informative about the entire process. The contractors that came out, Tim and Chris, were very friendly and worked efficiently. It was the easiest and stress-free experience I?ve had with ANY work for the house. I highly recommend Adirondack basement for any work needed for basements."

p M on May 2025


Avatar for Fazio Waterproofing & Enterprises
Fazio Waterproofing & Enterprises
165 Colonial Avenue
5.00(
1
)
Approved Pro
Fazio Waterproofing & Enterprises
165 Colonial Avenue
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

Fazio Waterproofing & Enterprises is proud to be serving the area with expert services, with your satisfaction as our ultimate goal. With over 10 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 Fazio is really excellent. Highly knowledgeable, professional, careful, and courteous. A real pleasure to work with. I was very comfortable trusting him with a complex project. Cost of the project was very reasonable. I highly recommend Fazio Waterproofing."

Edward M on July 2017

Fazio Waterproofing & Enterprises is proud to be serving the area with expert services, with your satisfaction as our ultimate goal. With over 10 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 Fazio is really excellent. Highly knowledgeable, professional, careful, and courteous. A real pleasure to work with. I was very comfortable trusting him with a complex project. Cost of the project was very reasonable. I highly recommend Fazio Waterproofing."

Edward M on July 2017


Emerald Construction and Masonry LLC
111 Middlesex Turnpike, #1058
5.00(
4
)
Approved Pro
Emerald Construction and Masonry LLC
111 Middlesex Turnpike, #1058
5.00(
4
)
Approved Pro
Customers say: Quick response
30 local quotes requested
1 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Thomas and Angelo (his crewman) were fantastic. (He had more crew, but Angelo was the only one whose name I knew.) They correctly diagnosed the problem (foundation cracks), sealed everything, installed a new sump pump and redid the flooring. They kept me informed every step of the way and started work within a day or two of hiring. The basement has remained dry as a bone ever since. One thing to note: They do require payment quickly (not all upfront but soon) and do not take credit cards."

Nathan S on February 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Thomas and Angelo (his crewman) were fantastic. (He had more crew, but Angelo was the only one whose name I knew.) They correctly diagnosed the problem (foundation cracks), sealed everything, installed a new sump pump and redid the flooring. They kept me informed every step of the way and started work within a day or two of hiring. The basement has remained dry as a bone ever since. One thing to note: They do require payment quickly (not all upfront but soon) and do not take credit cards."

Nathan S on February 2025


Paramount Home Solutions
290 Mineral Springs Rd
4.91(
80
)
Approved Pro
Paramount Home Solutions
290 Mineral Springs Rd
4.91(
80
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
34 local quotes requested

With years experience, we are committed to providing quality workmanship and superior customer service on all our applications. Here at Paramount Home Solutions., we strive to maintain our reputation as THEE high quality, service oriented company with our main focus being customer satisfaction.

"We trust Jason completely, and would definitely work with him again. He repaired the cracks in our basement wall. Not only that, he provided us with the name of another trustworthy contractor that replaced the drywall for us. We are definitely grateful to find Paramount through the Angi app."

Josh S on August 2024

With years experience, we are committed to providing quality workmanship and superior customer service on all our applications. Here at Paramount Home Solutions., we strive to maintain our reputation as THEE high quality, service oriented company with our main focus being customer satisfaction.

"We trust Jason completely, and would definitely work with him again. He repaired the cracks in our basement wall. Not only that, he provided us with the name of another trustworthy contractor that replaced the drywall for us. We are definitely grateful to find Paramount through the Angi app."

Josh S on August 2024


Avatar for Elite Concrete
Elite Concrete
28 Willard Dr
5.00(
7
)
Approved Pro
Elite Concrete
28 Willard Dr
5.00(
7
)
Approved Pro
1 years of experience
Free onsite estimate

Elite Concrete is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

" "

Kevin O on May 2025

Elite Concrete is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

" "

Kevin O on May 2025


Avatar for Adirondack Basement Systems, Inc.
Adirondack Basement Systems, Inc.
80 Sheehan St
4.61(
94
)
Approved Pro
Adirondack Basement Systems, Inc.
80 Sheehan St
4.61(
94
)
Approved Pro
Customers say: True professional
238 local quotes requested
27 years of experience

With over 25 years of professional experience, Adirondack Basement Systems is an upstanding Accredited Business with the Better Business Bureau, and members of Capital Region Builders and Remodelers Association! We have a fully trained staff to help you with all of your waterproofing, foundation support, concrete repair, and crawlspace needs. We provide free estimates and lifetime transferable warranties. If your basement is in need of care and attention, we're only a phone call away! We look forward to serving you! If you are planning on finishing or refinishing your basement, call us before you begin your project. We want to help you to protect your investment by making sure that your damp basement is dry all the time. Adirondack Basement Systems is an upstanding Accredited Business of the Better Business Bureau, and members of Capital Region Builders and Remodelers Association, National Association of Home Builders, and New York State Builders Association.

"It was a complex project. They were very careful with their procedures and raised sunken concrete sections next to the house and around a pool to allow for drainage. They filled the major cracks. They were courteous and on-time over several days. After many years the water in the basement problem has been resolved."

Robert D on September 2018

With over 25 years of professional experience, Adirondack Basement Systems is an upstanding Accredited Business with the Better Business Bureau, and members of Capital Region Builders and Remodelers Association! We have a fully trained staff to help you with all of your waterproofing, foundation support, concrete repair, and crawlspace needs. We provide free estimates and lifetime transferable warranties. If your basement is in need of care and attention, we're only a phone call away! We look forward to serving you! If you are planning on finishing or refinishing your basement, call us before you begin your project. We want to help you to protect your investment by making sure that your damp basement is dry all the time. Adirondack Basement Systems is an upstanding Accredited Business of the Better Business Bureau, and members of Capital Region Builders and Remodelers Association, National Association of Home Builders, and New York State Builders Association.

"It was a complex project. They were very careful with their procedures and raised sunken concrete sections next to the house and around a pool to allow for drainage. They filled the major cracks. They were courteous and on-time over several days. After many years the water in the basement problem has been resolved."

Robert D on September 2018


Avatar for Martinez landscaping NY LLC
Martinez landscaping NY LLC
Based In
New on HomeAdvisorNew on Angi
Approved Pro
Martinez landscaping NY LLC
Based In
New on AngiNew on HomeAdvisor
Approved Pro
1195 local quotes requested
5 years of experience

At Martinez landscaping NY LLC our customers needs are the utmost importance. Our team with 18+ years experience is committed to meeting your needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small, please contact us for a free estimate!

At Martinez landscaping NY LLC our customers needs are the utmost importance. Our team with 18+ years experience is committed to meeting your needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small, please contact us for a free estimate!

...
Showing 1-10 of 450

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.

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