Top-rated foundation repair specialists.

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  • Verified reviews icon74
    Verified foundation repairs reviews

Find Foundation repair specialists in Colwyn

Avatar for Groundworks

Groundworks

4.54(
327
)
Approved Pro

Groundworks

4.54(
327
)
Approved Pro
Customers say: Super punctual
39 local quotes requested
28 years of experience

Established in 1997, 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 Philadelphia & 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! PA158514 (PA)

"Tyrell did an excellent job correcting the mistakeS of the people who installed my basement waterproofing equipment. There was a terrible rotten egg smell and that's gone now. Tyrell cleaned up after himself, if any water spilled he made sure to vacuum it up and to dispose of everything in the proper place."

Alexander M on September 2023

Established in 1997, 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 Philadelphia & 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! PA158514 (PA)

"Tyrell did an excellent job correcting the mistakeS of the people who installed my basement waterproofing equipment. There was a terrible rotten egg smell and that's gone now. Tyrell cleaned up after himself, if any water spilled he made sure to vacuum it up and to dispose of everything in the proper place."

Alexander M on September 2023


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


Avatar for Basement Gurus, LLC

Basement Gurus, LLC

4.84(
150
)
Approved Pro

Basement Gurus, LLC

4.84(
150
)
Approved Pro
Customers say: Quality work
868 local quotes requested
15 years of experience

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"Steven was very nice and easy to do business with very honest and gave me all kinds of options. Hard to find people like that nowadays just overall great quality people"

Derek K on October 2025

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"Steven was very nice and easy to do business with very honest and gave me all kinds of options. Hard to find people like that nowadays just overall great quality people"

Derek K on October 2025


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
300 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 Quality 1st Basement Systems, Inc.

Quality 1st Basement Systems, Inc.

4.87(
90
)
Approved Pro

Quality 1st Basement Systems, Inc.

4.87(
90
)
Approved Pro
Customers say: Quick response
14 local quotes requested
26 years of experience

Quality 1st Basement Systems is your local, family owned contractor for Basement Waterproofing, Sump Pumps, Basement Finishing, Foundation Repair, Mold Remediation, Crack Repair, Radon Testing and Radon Mitigation, Egress Windows and Egress Stairwell, and Crawlspace Encapsulation too. 100% FINANCING AVAILABLE and free estimates. We have been in business for 25 years and have five star ratings with Google, Yelp, and the BBB. Winner of the 2021 BBB Torch Award for Market Place Ethics and finalist for the 2022 International BBB Torch award for Market Place Ethics. CONTACT US NOW BY CALLING 1-800-768-6745 OR EMAIL US AT [email protected]

"Installed radon filter without any issues or hassle."

Jonathan M on May 2023

Quality 1st Basement Systems is your local, family owned contractor for Basement Waterproofing, Sump Pumps, Basement Finishing, Foundation Repair, Mold Remediation, Crack Repair, Radon Testing and Radon Mitigation, Egress Windows and Egress Stairwell, and Crawlspace Encapsulation too. 100% FINANCING AVAILABLE and free estimates. We have been in business for 25 years and have five star ratings with Google, Yelp, and the BBB. Winner of the 2021 BBB Torch Award for Market Place Ethics and finalist for the 2022 International BBB Torch award for Market Place Ethics. CONTACT US NOW BY CALLING 1-800-768-6745 OR EMAIL US AT [email protected]

"Installed radon filter without any issues or hassle."

Jonathan M on May 2023


Offering Quality Excavation, Concrete Work, Foundations, underpinning, walls, basement slabs, sidewalks and more.


Avatar for Perfect Dry Basement

Perfect Dry Basement

5.00(
5
)

Perfect Dry Basement

5.00(
5
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Perfect Dry Basement LLC pprovides services such as basement waterproofing, exterior drainage system, crawlspace encapsulation, foundation repair solutions and much more. We have 17 years of experience. PDB is licensed and insured in PA and provide high quality work at affordable prices. At PDB we only use products of high quality. In addition, we give free estimates.

"So smooth! Very professional and the work was completed quickly. I would recommend Perfect Dry Basement to anyone."

Sue H on January 2024

Perfect Dry Basement LLC pprovides services such as basement waterproofing, exterior drainage system, crawlspace encapsulation, foundation repair solutions and much more. We have 17 years of experience. PDB is licensed and insured in PA and provide high quality work at affordable prices. At PDB we only use products of high quality. In addition, we give free estimates.

"So smooth! Very professional and the work was completed quickly. I would recommend Perfect Dry Basement to anyone."

Sue H on January 2024



Avatar for NK Construction And Design Inc

NK Construction And Design Inc

5.00(
4
)

NK Construction And Design Inc

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

We have more than 20 yrs experience in construction and structural works. For bigger structural projects, we provide structural reports, calculations and if necessary plans prepared by licensed professional structural engineer. We guarantee your satisfaction with 20 yrs warranty. We never leave until project is done right. No deposit payments required before project start. Call or click to schedule a Free estimate today!

"Best Contractor Ever! Nebo is everything I ever wanted in a contractor: prompt, reliable, trustworthy, reasonably priced, and a great communicator. The crew is respectful and jokes, laughs, and sings with each other as they do the work well and tidy up. Nebo addresses all questions and concerns and aims to please. Highly Recommended!"

Mel T on July 2023

We have more than 20 yrs experience in construction and structural works. For bigger structural projects, we provide structural reports, calculations and if necessary plans prepared by licensed professional structural engineer. We guarantee your satisfaction with 20 yrs warranty. We never leave until project is done right. No deposit payments required before project start. Call or click to schedule a Free estimate today!

"Best Contractor Ever! Nebo is everything I ever wanted in a contractor: prompt, reliable, trustworthy, reasonably priced, and a great communicator. The crew is respectful and jokes, laughs, and sings with each other as they do the work well and tidy up. Nebo addresses all questions and concerns and aims to please. Highly Recommended!"

Mel T on July 2023


"Great work! They always showed up on time and were very quick to respond. Happy using this business"

Oren F on July 2023

Here at New Premier we always try to make our customers happy, we will always try to go above expectations and provide fast and easy service. With our highly experienced experts we can get just about any job done.

"Great work! They always showed up on time and were very quick to respond. Happy using this business"

Oren F on July 2023

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Foundation Repair questions, answered by experts

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 best way to determine if ceiling cracks are structural is to hire a ceiling contractor to inspect the cracks and provide a professional opinion. That said, you might be able to make an educated guess based on the size and appearance of the crack. Larger cracks, cracks accompanied by sagging or discoloration, and cracks that travel from the ceiling down the walls are all signs of structural issues.

Concrete spalling can be fairly serious, especially if left untreated or in a public area. It can be a tripping hazard and, if not resolved, can lead to structural instability.

Periodic sealing and cleaning to maintain appearance and integrity.

Yes, thicker concrete is less likely to crack. The thicker the concrete is, the less susceptible it is to extreme changes in weather conditions that often cause concrete to crack or chip. If you’re unable to install a thicker concrete driveway for any reason, you can also ask your professional to install more rebar or wire mesh to provide greater strength and better resilience to damage.

The Colwyn, PA 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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