Top-rated foundation repair specialists.

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  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon44
    Verified foundation repairs reviews

Find Foundation repair specialists in Sussex

"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


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


Basement Waterproofing Specialists

4.32(
442
)
Approved Pro

Basement Waterproofing Specialists

4.32(
442
)
Approved Pro
Customers say: Quality work
181 local quotes requested
16 years of experience

Our personnel make up the complete collection of the best in the industry with decades of experience. We are a small family-owned business, not a giant corporation. We treat you like family and that's the difference! We pride ourselves on being the most professional family-owned business in our industry. We employee the highest caliber employees and use the best quality products available. We are fully licensed Home Improvement Contractors in every state we serve with the goal of leading the forefront of innovation in all that we do and setting the standard in this trade. We were the first to: Conduct mold remediation while simultaneously waterproofing. Offer lifetime warranties for our waterproofing services for the life of the structure. Offer lifetime warranties for the sump pumps. (We know they will not last a lifetime; it is a free replacement for our customers and our appreciation of their business). Clean out basement crawlspaces and garages while waterproofing.

"The job inside was done. However the drainage put in outside has turned our yard into a swimming pool. We once had a pipe draining to the creek and this was a perfect solution to the rains/weather. These guys came in and put a round small cylinder well. Water pumps up into our yard turning it into a swamp. Called them to come and see the problem they created. Their response $2900 to fix THEIR DAMAGE. I WOULD NEVER RECCOMEND THIS COMPANY!!"

Mike F on June 2025

Our personnel make up the complete collection of the best in the industry with decades of experience. We are a small family-owned business, not a giant corporation. We treat you like family and that's the difference! We pride ourselves on being the most professional family-owned business in our industry. We employee the highest caliber employees and use the best quality products available. We are fully licensed Home Improvement Contractors in every state we serve with the goal of leading the forefront of innovation in all that we do and setting the standard in this trade. We were the first to: Conduct mold remediation while simultaneously waterproofing. Offer lifetime warranties for our waterproofing services for the life of the structure. Offer lifetime warranties for the sump pumps. (We know they will not last a lifetime; it is a free replacement for our customers and our appreciation of their business). Clean out basement crawlspaces and garages while waterproofing.

"The job inside was done. However the drainage put in outside has turned our yard into a swimming pool. We once had a pipe draining to the creek and this was a perfect solution to the rains/weather. These guys came in and put a round small cylinder well. Water pumps up into our yard turning it into a swamp. Called them to come and see the problem they created. Their response $2900 to fix THEIR DAMAGE. I WOULD NEVER RECCOMEND THIS COMPANY!!"

Mike F on June 2025


"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 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
53 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

4.51(
289
)
Approved Pro

Quality 1st Basement Systems

4.51(
289
)
Approved Pro
Customers say: Super punctual
315 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


Avatar for American A-1 Waterproofing

American A-1 Waterproofing

4.88(
109
)
Approved Pro

American A-1 Waterproofing

4.88(
109
)
Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
22 local quotes requested

American A-1 Waterproofing has an A+ Rating with the BBB and has never had a complaint in our 33 years of business. American A-1 Waterproofing is certified as a "Certified Waterproofing Specialist" (CWS) by the National Association of Waterproofing and Structural Repair Contractors. American A-1 Waterproofing is the only basement waterproofing company in New Jersey that is certified by the NAWSRC. Other companies in NJ may be "members", however we are the only company actually "certified" by the NAWSRC. We are listed as Water Plus, Inc. / American A-1 Waterproofing on the NAWSRC website. We are licensed, bonded and insured. We do not use subcontractors, we do all the work ourselves. American A-1 Waterproofing is family owned and operated. Same owner and same business name for 25 years. All work is guaranteed with a 25 year tranferrable warranty against water seepage except in the event of a prolonged power outage or a natural disaster. A natural disaster is an earthquake, cyclone,hurricane or any act of God beyond American A-1's control.

"Extremely knowledgeable and highly professional. Would never even think of using/hiring another waterproofing company. Elaborate waterproofing system put in by this company that has allowed us to breathe easier during flooding rains. They fully understand water flow, slope, and all aspects of keeping the inside of our house “dry”. Lou and the group are tremendous and care about the product they produce."

Andre E on May 2025

American A-1 Waterproofing has an A+ Rating with the BBB and has never had a complaint in our 33 years of business. American A-1 Waterproofing is certified as a "Certified Waterproofing Specialist" (CWS) by the National Association of Waterproofing and Structural Repair Contractors. American A-1 Waterproofing is the only basement waterproofing company in New Jersey that is certified by the NAWSRC. Other companies in NJ may be "members", however we are the only company actually "certified" by the NAWSRC. We are listed as Water Plus, Inc. / American A-1 Waterproofing on the NAWSRC website. We are licensed, bonded and insured. We do not use subcontractors, we do all the work ourselves. American A-1 Waterproofing is family owned and operated. Same owner and same business name for 25 years. All work is guaranteed with a 25 year tranferrable warranty against water seepage except in the event of a prolonged power outage or a natural disaster. A natural disaster is an earthquake, cyclone,hurricane or any act of God beyond American A-1's control.

"Extremely knowledgeable and highly professional. Would never even think of using/hiring another waterproofing company. Elaborate waterproofing system put in by this company that has allowed us to breathe easier during flooding rains. They fully understand water flow, slope, and all aspects of keeping the inside of our house “dry”. Lou and the group are tremendous and care about the product they produce."

Andre E on May 2025


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

No, foundation repair is not usually covered by home insurance. Most home insurance companies typically consider foundation repair as part of your home maintenance, so they won’t cover the cost. However, foundation damage is sometimes caused by covered events such as a burst pipe or a house fire. In these cases, repairs may be covered.

Cement companies offer a wide variety of services, including delivering and pouring concrete for home foundations, walkways, patios, driveways, concrete steps, pools, pool decks, and more, plus concrete repair and patching. Most companies also have the ability to demolish and haul away old concrete landscaping features. It’s a good idea to reach out to a few different companies before hiring to make sure you choose one that can tackle the entirety of the project you have from start to finish. This method will typically save you some money over hiring multiple contractors.

Foundation problems will likely get worse over time if they aren’t repaired. As foundation problems progress, your home may experience signs of structural damage, water damage, and health and safety risks—all of which will only get more expensive to fix the longer you wait. Repair foundation problems as soon as you’re aware of them to avoid complex and expensive remediation in the future.

You can strengthen a weak foundation using a few different foundation repair methods, including underpinning, slab jacking, foam jacking, installing carbon fiber support strips, or using a sealant or epoxy crack injection. It’s worth noting that the best way to strengthen your foundation permanently is to fix the underlying issue first and then use a permanent solution to reinforce it. If you’re unsure who to call for foundation repairs, a foundation repair contractor or structural engineer can help find the best solution for your home.

Yes, slab foundations can sink just like any other foundation type. Floating slabs are the most prone to differential settlement and foundation sinking because they sit directly on the surface of the earth. Slab foundations that have footings—including slab-on-grade foundations and monolithic slab foundations—get additional support from soil further down and are less likely to sink over time, especially under larger, heavier structures.

The Sussex, NJ homeowners’ guide to foundation repairs

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