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  • Verified reviews icon30
    Verified foundation repairs reviews

Find Foundation repair specialists in Sandyston

Grady's Painting Plastering/Construction

4.56(
54
)
Approved Pro

Grady's Painting Plastering/Construction

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


"We paid close to $20,000 to BQ Basements to completely waterproof our basement. We still get water and they told us we need another sump pump installed at over $2,000. They guaranteed we would not get water after installation. Be aware they do not stand behind their work or honor warranties."

Robert K on October 2025

Groundworks offers dependable foundation and crawl space repair solutions, basement waterproofing, and concrete lifting for New Jersey residents. We take pride in restoring the value and safety of homes in our local community.

"We paid close to $20,000 to BQ Basements to completely waterproof our basement. We still get water and they told us we need another sump pump installed at over $2,000. They guaranteed we would not get water after installation. Be aware they do not stand behind their work or honor warranties."

Robert K on October 2025


Avatar for American Supreme Construction LLC

American Supreme Construction LLC

5.00(
301
)
Approved Pro

American Supreme Construction LLC

5.00(
301
)
Approved Pro
Customers say: Quick response
84 local quotes requested
13 years of experience

American Supreme Construction has been serving the Tri-State area with Roofing and Construction for 13 years. American Supreme Construction is a family owned business that strives for professionalism quality reliability and excellence in everything we do. Our team at American Supreme Construction has served in the construction building industry for over 15 years. This allows our team us to guide our customers in making informed decisions regarding their homes. 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.

"Don and his team did a fantastic service from start to finish. Very nice people, easy to deal with and always professional. The job was done to a high standard, on time, and at a very fair price. Our new roof looks amazing! Highly recommend!"

Edna S on November 2025

American Supreme Construction has been serving the Tri-State area with Roofing and Construction for 13 years. American Supreme Construction is a family owned business that strives for professionalism quality reliability and excellence in everything we do. Our team at American Supreme Construction has served in the construction building industry for over 15 years. This allows our team us to guide our customers in making informed decisions regarding their homes. 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.

"Don and his team did a fantastic service from start to finish. Very nice people, easy to deal with and always professional. The job was done to a high standard, on time, and at a very fair price. Our new roof looks amazing! Highly recommend!"

Edna S on November 2025


Avatar for Continental Construction Service, LLC

Continental Construction Service, LLC

4.74(
51
)
Approved Pro

Continental Construction Service, LLC

4.74(
51
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
16 local quotes requested

Continental Construction Service, takes 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. Continental Construction Service, takes 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.

"The job was inspected, bid and completed all within a week! The work was finished to my complete satisfaction and for a great price!"

Peter V on January 2025

Continental Construction Service, takes 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. Continental Construction Service, takes 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.

"The job was inspected, bid and completed all within a week! The work was finished to my complete satisfaction and for a great price!"

Peter V on January 2025


Avatar for Groundworks

Groundworks

4.78(
179
)
Approved Pro

Groundworks

4.78(
179
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
49 local quotes requested

Established in 2004, Groundworks is a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across New Jersey, we bring our local expertise closer to you. Groundworks proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! 13VH11822900 (NJ)

"Working with DJ from Groundworks (Select Basement) has been an outstanding experience. After struggling with various contractors who either failed to resolve our water issues or were unprofessional, DJ and his team truly stood out. DJ was incredibly helpful, patient, and responsive throughout the entire process. Our home is a ranch with 225 linear feet around the perimeter, and while other contractors insisted on installing a French drain for the entire length, DJ recommended a more targeted approach. He proposed installing the French drain for just 80 linear feet, focusing only on the areas where water intrusion was likely. His thorough explanations and prompt responses to all our questions were greatly appreciated. The workers arrived on time, maintained a clean work environment, and completed the job as promised. If we could give 10 stars, we would! Groundworks is a highly professional and honest company that didn't try to inflate the scope of work to charge us more. We wholeheartedly recommend them."

Elina B on October 2024

Established in 2004, Groundworks is a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across New Jersey, we bring our local expertise closer to you. Groundworks proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! 13VH11822900 (NJ)

"Working with DJ from Groundworks (Select Basement) has been an outstanding experience. After struggling with various contractors who either failed to resolve our water issues or were unprofessional, DJ and his team truly stood out. DJ was incredibly helpful, patient, and responsive throughout the entire process. Our home is a ranch with 225 linear feet around the perimeter, and while other contractors insisted on installing a French drain for the entire length, DJ recommended a more targeted approach. He proposed installing the French drain for just 80 linear feet, focusing only on the areas where water intrusion was likely. His thorough explanations and prompt responses to all our questions were greatly appreciated. The workers arrived on time, maintained a clean work environment, and completed the job as promised. If we could give 10 stars, we would! Groundworks is a highly professional and honest company that didn't try to inflate the scope of work to charge us more. We wholeheartedly recommend them."

Elina B on October 2024


Avatar for Quality 1st Basement Systems

Quality 1st Basement Systems

4.58(
253
)
Approved Pro

Quality 1st Basement Systems

4.58(
253
)
Approved Pro
Customers say: Super punctual
305 local quotes requested
39 years of experience

Quality 1st Basement Systems has been helping homeowners improve their homes for over 20 years. We have currently helped over 6,000 homeowners with All Things Basementy by designing effective solutions for their home’s needs. Whether our homeowners are interested in waterproofing a wet basement, fixing cracked foundation walls, insulating their crawl spaces, finishing their basements with mold-resistant materials, and raising concrete slabs, we can help! We’re currently the largest waterproofing company serving both residential and commercial clients in the tri-state area and are continuing to grow. As a member of the internationally renowned Basement Systems, Inc. network and Foundation Supportworks, Inc. network, we have global resources, but provide local service! The Basement Systems network thoroughly trains our employees at the Basement Systems, Inc. corporate headquarters in CT. Our hard work and dedication to our customers have earned us an A+ rating with the Better Business Bureau and several Super Service Awards from Angie’s List. We service most of New Jersey, all 5 boroughs of New York City and certain parts of Pennsylvania. Thousands of homeowners have experienced the Quality 1st Basement Systems difference. We invite you to do your homework and check out our credentials and compare. Put our experience and integrity to work protecting your investment. Our reputation exceeds all others because of our culture of WOW customer service.

"Everything went smoothly"

Hector R on December 2023

Quality 1st Basement Systems has been helping homeowners improve their homes for over 20 years. We have currently helped over 6,000 homeowners with All Things Basementy by designing effective solutions for their home’s needs. Whether our homeowners are interested in waterproofing a wet basement, fixing cracked foundation walls, insulating their crawl spaces, finishing their basements with mold-resistant materials, and raising concrete slabs, we can help! We’re currently the largest waterproofing company serving both residential and commercial clients in the tri-state area and are continuing to grow. As a member of the internationally renowned Basement Systems, Inc. network and Foundation Supportworks, Inc. network, we have global resources, but provide local service! The Basement Systems network thoroughly trains our employees at the Basement Systems, Inc. corporate headquarters in CT. Our hard work and dedication to our customers have earned us an A+ rating with the Better Business Bureau and several Super Service Awards from Angie’s List. We service most of New Jersey, all 5 boroughs of New York City and certain parts of Pennsylvania. Thousands of homeowners have experienced the Quality 1st Basement Systems difference. We invite you to do your homework and check out our credentials and compare. Put our experience and integrity to work protecting your investment. Our reputation exceeds all others because of our culture of WOW customer service.

"Everything went smoothly"

Hector R on December 2023


"Very happy with the service and the concrete work provided by Sean and his crew. He was able to meet a strict schedule and was helpful answering my questions and offered smart solutions. In the end, the job was done on time, correctly and I am extremely pleased overall. Thank you, Sean and Century Masonry for making it look easy and doing a great job!!"

Mike C on November 2024

Water control, drain systems, sump pumps, battery back-up pumps, crawl space encapsulation & wall repair. Additional email - [email protected]. Additional email - [email protected]

"Very happy with the service and the concrete work provided by Sean and his crew. He was able to meet a strict schedule and was helpful answering my questions and offered smart solutions. In the end, the job was done on time, correctly and I am extremely pleased overall. Thank you, Sean and Century Masonry for making it look easy and doing a great job!!"

Mike C on November 2024


Foamco/Dr.EnergySaver

No reviews yet

Foamco/Dr.EnergySaver

No reviews yet

Insulation Consultant My Expertise in Cost-Effective and Efficient Project Management, Through eight years of dedicated research and hands on approach I have gained a comprehensive understanding of how to make your home, business, or any project as efficient as possible while maintaining a budget-friendly approach. My experience includes extensive training and certification in spray foam and other insulation solutions. I have also developed a strong understanding of the importance of communication and collaboration throughout a project. I make it a priority to keep my clients informed and involved every step of the way. By doing so, we can ensure that the final product meets all expectations, both in terms of functionality and cost. Additionally, I have a keen eye for detail and a passion for finding creative solutions to complex problems. This allows me to identify potential issues early on in a project and quickly develop effective solutions. Whether you are looking to improve the energy efficiency of your home or need a project manager for a larger construction project, I am confident in my ability to deliver exceptional results. Contact me today to learn more about my services and how I can help you achieve your goals.

Insulation Consultant My Expertise in Cost-Effective and Efficient Project Management, Through eight years of dedicated research and hands on approach I have gained a comprehensive understanding of how to make your home, business, or any project as efficient as possible while maintaining a budget-friendly approach. My experience includes extensive training and certification in spray foam and other insulation solutions. I have also developed a strong understanding of the importance of communication and collaboration throughout a project. I make it a priority to keep my clients informed and involved every step of the way. By doing so, we can ensure that the final product meets all expectations, both in terms of functionality and cost. Additionally, I have a keen eye for detail and a passion for finding creative solutions to complex problems. This allows me to identify potential issues early on in a project and quickly develop effective solutions. Whether you are looking to improve the energy efficiency of your home or need a project manager for a larger construction project, I am confident in my ability to deliver exceptional results. Contact me today to learn more about my services and how I can help you achieve your goals.


Avatar for American Eagle Waterproofing

American Eagle Waterproofing

5.00(
4
)

American Eagle Waterproofing

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We specialize in basement waterproofing and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"It was very professionally done. Installed a very reliable French drain system. They work was completed in a very timely manner and was very neat. Jeffry is one of the most knowledgeable and trustworthy contractors that I have ever engaged. I couldn't recommend them more highly."

Allan M on May 2024

We specialize in basement waterproofing and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"It was very professionally done. Installed a very reliable French drain system. They work was completed in a very timely manner and was very neat. Jeffry is one of the most knowledgeable and trustworthy contractors that I have ever engaged. I couldn't recommend them more highly."

Allan M on May 2024


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Foundation Repair questions, answered by experts

Underpinning is a type of foundation repair in which a repair specialist installs piers under your foundation to provide additional support for the concrete and structure above. Foundation repair is an umbrella term that includes many other repair methods, including foundation crack repair, waterproofing, cosmetic repair, concrete block wall stabilization, and more.

Most homeowner’s insurance policies will cover the cost of slab leak repair that results from a natural disaster, like an earthquake or a severe flood, or from a tree falling on your home. Damage from frozen pipes in your slab is also typically covered. However, your policy is unlikely to cover the repair if an invading tree root causes the damage or if it’s a pinhole leak that results from corrosion. You should contact your insurance provider for a full run-down of what they cover.

Violating building codes can lead to a number of consequences, including fines, citations, and even being required to demolish the structure and start over. If your house isn’t compliant with code requirements, you can also run into trouble when it comes time to get homeowners insurance or sell your house. Following all applicable building codes will avert costly consequences.

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.

Cracked tiles can mean foundation problems. Fortunately, most of the time, cracked tiles happen as a result of accidental damage. It is important to determine the cause of cracking to rule out underlying foundation issues. If your tiles were not damaged due to dropped items, heavy loads, poor installation, or inferior tile quality, and the cracks are spreading throughout your flooring and not limited to just one area, you may be dealing with foundation problems. These can include drainage problems and even foundation failure, so it is vital to call a licensed contractor to assess the issue and ensure your foundation is safe.

The Sandyston, NJ homeowners’ guide to foundation repairs

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