Top-rated foundation repair specialists.

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    Average homeowner rating
  • Verified reviews icon39
    Verified foundation repairs reviews

Find Foundation repair specialists in Jamesport

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
17 local quotes requested

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


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


Grady's Painting Plastering/Construction

P.O. Box 467
4.56(
54
)
Approved Pro

Grady's Painting Plastering/Construction

P.O. Box 467
4.56(
54
)
Approved Pro
Customers say: Quality work
56 years of experience
Free onsite estimate

WE SPECIALIZE IN THE HISTORICAL REPAIR AND RESTORATIONS FOR INTERIOR AND EXTERIOR. WE WORK THE WHOLE STATE OF NEW JERSEY, MARYLAND, WASHINGTON DC, CONNECTICUT, VIRGINA AND MASSACHUSETTS. WE ARE LICENSED AND INSURED IN ALL STATES. WE ARE WILLING TO TRAVEL, ANY JOB SMALL OR LARGE. CONSULTATION AND TRANSPORTATION FEES WILL APPLY. WE DO WINDOW REPAIR. PLASTER REPAIRS. AND ALL MASONRY REPAIRS

"We had cracks in the dyed mortar of the bricks above our garage. Grady took the time to match the color, even with the color having aged 10 years, and you would not even be able to tell that there was new mortar. If your project is anything like ours, you will not be disappointed."

Bradley S on August 2024

WE SPECIALIZE IN THE HISTORICAL REPAIR AND RESTORATIONS FOR INTERIOR AND EXTERIOR. WE WORK THE WHOLE STATE OF NEW JERSEY, MARYLAND, WASHINGTON DC, CONNECTICUT, VIRGINA AND MASSACHUSETTS. WE ARE LICENSED AND INSURED IN ALL STATES. WE ARE WILLING TO TRAVEL, ANY JOB SMALL OR LARGE. CONSULTATION AND TRANSPORTATION FEES WILL APPLY. WE DO WINDOW REPAIR. PLASTER REPAIRS. AND ALL MASONRY REPAIRS

"We had cracks in the dyed mortar of the bricks above our garage. Grady took the time to match the color, even with the color having aged 10 years, and you would not even be able to tell that there was new mortar. If your project is anything like ours, you will not be disappointed."

Bradley S on August 2024


Avatar for Zavza Seal, LLC

Zavza Seal, LLC

377 Main St. Suite 6
4.92(
43
)
Approved Pro

Zavza Seal, LLC

377 Main St. Suite 6
4.92(
43
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
49 local quotes requested

Zavza Seal is an experienced high end general contracting firm with a passion for delivering excellence. Serving Long Island communities including Suffolk, and Nassau counties. We are a one-stop shop construction company that specializes in the following: waterproofing basements, paving and sealing driveways and garages, waterproofing parking structure and concrete commercial roofs. Concrete Swimming pool buildout, Stone paving and tuck-pointing work. If you are considering any type of waterproofing project and concrete work we are here to help and can provide valuable, time-saving advice. We also specialize in waterproof concrete for professional and residential use called Basecrete. Call today for a free estimate!

"I hired Zavza Seal to waterproof my basement and they did an exceptional job! The team was professional, thorough and went the extra mile to ensure everything was done perfectly. I'm happy with their work and highly recommend them to anyone!"

Levan C on September 2024

Zavza Seal is an experienced high end general contracting firm with a passion for delivering excellence. Serving Long Island communities including Suffolk, and Nassau counties. We are a one-stop shop construction company that specializes in the following: waterproofing basements, paving and sealing driveways and garages, waterproofing parking structure and concrete commercial roofs. Concrete Swimming pool buildout, Stone paving and tuck-pointing work. If you are considering any type of waterproofing project and concrete work we are here to help and can provide valuable, time-saving advice. We also specialize in waterproof concrete for professional and residential use called Basecrete. Call today for a free estimate!

"I hired Zavza Seal to waterproof my basement and they did an exceptional job! The team was professional, thorough and went the extra mile to ensure everything was done perfectly. I'm happy with their work and highly recommend them to anyone!"

Levan C on September 2024


Avatar for The Perfect Interior

The Perfect Interior

157 Daniel Low Terrace
5.00(
1
)

The Perfect Interior

157 Daniel Low Terrace
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Perfect Interior LC specializes in interior renovations of all scales, focusing on energy efficiency to comply with NYC’s Local Law 97. With over 10 years of experience in industrial energy efficiency, we enhance comfort without increasing costs. Our expert team designs, manages, and ensures measurable success in every project, guiding clients through energy-saving steps that scale effectively. Partnering with industry allies, we bring innovative solutions to NYC, creating beautiful, efficient spaces that align with your vision. Contact us today to start your transformation!

"Professionalism and good service."

Marcela G on November 2024

Perfect Interior LC specializes in interior renovations of all scales, focusing on energy efficiency to comply with NYC’s Local Law 97. With over 10 years of experience in industrial energy efficiency, we enhance comfort without increasing costs. Our expert team designs, manages, and ensures measurable success in every project, guiding clients through energy-saving steps that scale effectively. Partnering with industry allies, we bring innovative solutions to NYC, creating beautiful, efficient spaces that align with your vision. Contact us today to start your transformation!

"Professionalism and good service."

Marcela G on November 2024


Avatar for Cardinal Concrete & Paving

Cardinal Concrete & Paving

16 Allegheny Drive West
No reviews yet

Cardinal Concrete & Paving

16 Allegheny Drive West
No reviews yet
3 years of experience

Cardinal Concrete & Paving Inc. is a concrete and asphalt contractor specializing in poured concrete, asphalt and masonry. We offer stamped concrete, pavers, patios, stairs, retaining walls, foundations and foundation extensions, and much more. Call us for your free estimate satisfaction guaranteed.

Cardinal Concrete & Paving Inc. is a concrete and asphalt contractor specializing in poured concrete, asphalt and masonry. We offer stamped concrete, pavers, patios, stairs, retaining walls, foundations and foundation extensions, and much more. Call us for your free estimate satisfaction guaranteed.


Avatar for RC Unique

RC Unique

34 Oakcrest Avenue
5.00(
1
)

RC Unique

34 Oakcrest Avenue
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Looking for reliable concrete and masonry services in the New York City area? Look no further than RC Unique. Our team of experts is dedicated to providing top-notch solutions for all your concrete and masonry needs. With our exceptional service and attention to detail, we're the go-to choice for homeowners seeking professional assistance. Contact us today for a hassle-free experience!

"The service was great. They were prompt. Their work was incredible. My front porch looks amazing thanks to their work. There was great attention to details. Will hire again."

Maria B on January 2023

Looking for reliable concrete and masonry services in the New York City area? Look no further than RC Unique. Our team of experts is dedicated to providing top-notch solutions for all your concrete and masonry needs. With our exceptional service and attention to detail, we're the go-to choice for homeowners seeking professional assistance. Contact us today for a hassle-free experience!

"The service was great. They were prompt. Their work was incredible. My front porch looks amazing thanks to their work. There was great attention to details. Will hire again."

Maria B on January 2023


"Ever and his crew were prompt and courteous. They were very detailed oriented and did an excellent job. I’m very pleased with the patio and irrigation system he constructed for me."

Ann N on August 2019

Nature Outdoor is founded by professionals with a focus on quality and fast response. We offer general landscaping installation and maintenance; irrigation installation and maintenance; patios; driveways; masonry.

"Ever and his crew were prompt and courteous. They were very detailed oriented and did an excellent job. I’m very pleased with the patio and irrigation system he constructed for me."

Ann N on August 2019


M Hernandez Home Improvement Inc

1576 Front St
4.75(
12
)

M Hernandez Home Improvement Inc

1576 Front St
4.75(
12
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Home improvement and remodeling Serving home owners and real state investors with a full range of construction and renovation related services since 1982. Commercial and residential - licensed and insured.

"It went well."

Glenn R on December 2021

Home improvement and remodeling Serving home owners and real state investors with a full range of construction and renovation related services since 1982. Commercial and residential - licensed and insured.

"It went well."

Glenn R on December 2021


Avatar for Alliance Enterprises Masonry & Waterproofing

Alliance Enterprises Masonry & Waterproofing

150 Maple Avenue
5.00(
7
)

Alliance Enterprises Masonry & Waterproofing

150 Maple Avenue
5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Alliance A1 Enterprises, a family owned and operated basement waterproofing business for over 3 decades!! Alliance A1 Enterprises provides waterproofing services in Middlesex County, Union county, and surrounding communities in the tri-state area. Waterproofing is achieved with the interior and exterior application of sealing products, combined with the installation of French drains, sump pumps with battery backups and exterior drainage. These solutions will give you peace of mind whether you're home or traveling! Alliance A1 Enterprises also provides basement and foundation repair, crawl space solutions, exterior drainage and masonry services. With free estimates and a lifetime warranty on our basement waterproofing services, you can rest easy knowing that your project will be handled with the utmost care. Please call us today for more information. In the case of an emergency, there’s no need to panic! We offer same-day service to ensure that your home is safe and secure.

"The work was excellent, it went well and I'm going to use them to finish my basement, They were professional, courteous, and polite."

Karen C on October 2022

Alliance A1 Enterprises, a family owned and operated basement waterproofing business for over 3 decades!! Alliance A1 Enterprises provides waterproofing services in Middlesex County, Union county, and surrounding communities in the tri-state area. Waterproofing is achieved with the interior and exterior application of sealing products, combined with the installation of French drains, sump pumps with battery backups and exterior drainage. These solutions will give you peace of mind whether you're home or traveling! Alliance A1 Enterprises also provides basement and foundation repair, crawl space solutions, exterior drainage and masonry services. With free estimates and a lifetime warranty on our basement waterproofing services, you can rest easy knowing that your project will be handled with the utmost care. Please call us today for more information. In the case of an emergency, there’s no need to panic! We offer same-day service to ensure that your home is safe and secure.

"The work was excellent, it went well and I'm going to use them to finish my basement, They were professional, courteous, and polite."

Karen C on October 2022

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Foundation Repair questions, answered by experts

Yes, it is worth repairing concrete cracks. Concrete cracks are normal, and they can be hard to keep from appearing. However, it is worth repairing cracks in concrete for many reasons. For example, it’s possible to repair concrete to the point where the repair is almost invisible. Also, if the crack is left alone, it can become bigger and more expensive to fix over time.

New constructions need time to “settle” and sometimes, small hairline cracks occur as a result. Larger horizontal or “stair step” cracks, however, are usually a sign of a deeper, more severe issue. It could indicate an issue with the soil beneath the home, a problem caused by an overgrown tree, or another problem.

No, house settling is normal as your home’s foundation settles into the soil below and as the framing of your home shifts as it expands and contracts with changes in temperature and moisture. However, if you get to the point where your doors and windows aren’t opening easily, your floors are uneven, or you can visibly see that your roof line is wavy or uneven, you are more likely to have foundation issues.

You can use epoxy-based concrete fillers to repair small cracks and dents in the floor. For larger damages, remove any debris, then patch the cracks or holes with concrete repair products or resurface the entire floor. We recommend using fast-curing products that cure in four hours. You can also buy a pre-mixed concrete patch and leveler if you are only repairing parts of your floor.

The most cost-effective foundation repair is using masonry patches and sealants to seal foundation cracks and offer some support to prevent further damage. These methods are used to fix minor foundation cracks quickly. However, they’re not suitable as a long-term solution, and they only offer minimal stability. On average, masonry patches and sealants cost $500, but a sealant like an epoxy crack injection can total over $2,000. If you’re handy and only looking for a temporary solution until you contact a local foundation repair contractor for a more permanent one, you can save hundreds by DIYing this repair.

The Jamesport, NY homeowners’ guide to foundation repairs

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

What do you need done? We’ll find top pros.
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