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Foundation, basement or crawlspace waterproofing / encapsulation pros in Greenport

Avatar for Ixhua Masonry & Landscaping, LLC
Ixhua Masonry & Landscaping, LLC
47 Ponquogue Ave.
New on HomeAdvisorNew on Angi
Approved Pro
Ixhua Masonry & Landscaping, LLC
47 Ponquogue Ave.
New on AngiNew on HomeAdvisor
Approved Pro
5 years of experience
Free onsite estimate

Ixhua Masonry & Landscaping, LLC 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.**Over 10 Years Experience**

Ixhua Masonry & Landscaping, LLC 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.**Over 10 Years Experience**


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
29 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


Avatar for M.O.E. Masonry, Inc.
M.O.E. Masonry, Inc.
P.O. Box 2102
New on HomeAdvisorNew on Angi
Approved Pro
M.O.E. Masonry, Inc.
P.O. Box 2102
New on AngiNew on HomeAdvisor
Approved Pro
29 years of experience
Free onsite estimate

Our mission at M.O.E. Masonry, Inc., is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! M.O.E. Masonry, Inc., stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

Our mission at M.O.E. Masonry, Inc., is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! M.O.E. Masonry, Inc., stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!


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
184 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 Home Healthy Homes, Inc.
Home Healthy Homes, Inc.
2083 Jericho Turnpike
4.60(
95
)
Approved Pro
Home Healthy Homes, Inc.
2083 Jericho Turnpike
4.60(
95
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
10 local quotes requested

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 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
26 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 K.M Construction
K.M Construction
500 S Broad St
5.00(
4
)
Approved Pro
K.M Construction
500 S Broad St
5.00(
4
)
Approved Pro
Free onsite estimate
Emergency services offered

Because all of our work is guaranteed and we do work to a customer's 100% satisfaction

"Tremendous work 5/5"

frank b on May 2025

Because all of our work is guaranteed and we do work to a customer's 100% satisfaction

"Tremendous work 5/5"

frank b on May 2025


Avatar for Twin Fork Waterproofing, LLC
Twin Fork Waterproofing, LLC
PO Box 1073
4.32(
27
)
Approved Pro
Twin Fork Waterproofing, LLC
PO Box 1073
4.32(
27
)
Approved Pro
Customers say: Quick response
48 years of experience
Free onsite estimate

For over 30 years Twin Fork Waterproofing, Inc. has been a family owned and operated business located on the East End of Long Island. We have been the #1 choice of thousands of homeowners and businesses on the North and South Forks and Shelter Island for basement waterproofing and mold disinfection, safe insulation, foundation repair, drainage systems, dehumidifiers, remediation of rodent feces, etc. Twin Fork Waterproofing, Inc. Uses all environmentally safe mildicides and disinfections for your safety and guarantees our work. Call or text us today for a free evaluation.

"Just excellent start to finish - I’ve been battling water in my basement for years and finally have no more anxiety during a heavy rainstorm. The new humidifier and waterproofed basement was money well spent - and the work and care from this top notch team was outstanding. Highly recommend them. Quality work at a fair price."

Marian Z on May 2025

For over 30 years Twin Fork Waterproofing, Inc. has been a family owned and operated business located on the East End of Long Island. We have been the #1 choice of thousands of homeowners and businesses on the North and South Forks and Shelter Island for basement waterproofing and mold disinfection, safe insulation, foundation repair, drainage systems, dehumidifiers, remediation of rodent feces, etc. Twin Fork Waterproofing, Inc. Uses all environmentally safe mildicides and disinfections for your safety and guarantees our work. Call or text us today for a free evaluation.

"Just excellent start to finish - I’ve been battling water in my basement for years and finally have no more anxiety during a heavy rainstorm. The new humidifier and waterproofed basement was money well spent - and the work and care from this top notch team was outstanding. Highly recommend them. Quality work at a fair price."

Marian Z on May 2025


Basement Man
76 Park Street
4.95(
50
)
Approved Pro
Basement Man
76 Park Street
4.95(
50
)
Approved Pro
Customers say: Terrific value
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
41 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.

"The job was perfectly done. May helpful suggestions were given that made a positive outcome. Everyone was competent and careful. Strongly recommend the company."

Robert P on May 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.

"The job was perfectly done. May helpful suggestions were given that made a positive outcome. Everyone was competent and careful. Strongly recommend the company."

Robert P on May 2025


Avatar for WOOD ISLAND BROS HOME IMPROVEMENT INC
WOOD ISLAND BROS HOME IMPROVEMENT INC
28 Winding Path 11
5.00(
2
)
Approved Pro
WOOD ISLAND BROS HOME IMPROVEMENT INC
28 Winding Path 11
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
33 local quotes requested

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with Wood Island Home Improvement you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.

"Wood Island bros. is a great business, I hired them for a bunch of repairs in my home, including kitchen and window repair. I recommend this company, very efficient and and professional."

Melva C on October 2024

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with Wood Island Home Improvement you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.

"Wood Island bros. is a great business, I hired them for a bunch of repairs in my home, including kitchen and window repair. I recommend this company, very efficient and and professional."

Melva C on October 2024

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Showing 1-10 of 990

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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