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Find Foundation repair specialists in Wilmington

Avatar for Basement Gurus, LLC

Basement Gurus, LLC

4.84(
151
)
Approved Pro

Basement Gurus, LLC

4.84(
151
)
Approved Pro
Customers say: Quality work
878 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!

"I was getting water in my basement every time it rained, Dan helped me rule out other causes and recommended a french drain. Basement has been bone dry ever since. The workers took great care and even repaired the water damage from before. I highly recommend calling Basement Gurus for any basement related needs"

Andrew R on December 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!

"I was getting water in my basement every time it rained, Dan helped me rule out other causes and recommended a french drain. Basement has been bone dry ever since. The workers took great care and even repaired the water damage from before. I highly recommend calling Basement Gurus for any basement related needs"

Andrew R on December 2025


Avatar for Groundworks

Groundworks

4.69(
257
)
Approved Pro

Groundworks

4.69(
257
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
39 local quotes requested

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)

"I got my basement waterproofed in January 2023 paid $16K for it & I had to call them twice already because still getting water in the basement not only that but this machine has been beeping consistently every 2-3 seconds because it needs service I called them to come out to resolve the matter but have to wait a whole month for someone to come out! For me to pay $16K to get horrible service & still go through the water issue is not good at all!!!"

SAKINA T on August 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)

"I got my basement waterproofed in January 2023 paid $16K for it & I had to call them twice already because still getting water in the basement not only that but this machine has been beeping consistently every 2-3 seconds because it needs service I called them to come out to resolve the matter but have to wait a whole month for someone to come out! For me to pay $16K to get horrible service & still go through the water issue is not good at all!!!"

SAKINA T on August 2023


Avatar for Quality 1st Basement Systems, Inc

Quality 1st Basement Systems, Inc

4.70(
176
)
Approved Pro

Quality 1st Basement Systems, Inc

4.70(
176
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
111 local quotes requested

Quality 1st Basement Systems is your local, family-owned contractor for Basement Waterproofing, Sump Pumps, Basement Finishing, Foundation Repair, Crack Repair, 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]

"Service was great from sales, to installation, to post installation support. Very responsive, very professional. It's hard to find in this 'space'--there are a lot of shady people in basement water damage/repair, and this place exceeded expectations. We've had our repair in place for 4+ years, with only 1 small issue on a wall seam crack, and that was fixed within 24 hours of reporting the issue. Stand up place! Thank you for such great service and support."

John M on January 2024

Quality 1st Basement Systems is your local, family-owned contractor for Basement Waterproofing, Sump Pumps, Basement Finishing, Foundation Repair, Crack Repair, 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]

"Service was great from sales, to installation, to post installation support. Very responsive, very professional. It's hard to find in this 'space'--there are a lot of shady people in basement water damage/repair, and this place exceeded expectations. We've had our repair in place for 4+ years, with only 1 small issue on a wall seam crack, and that was fixed within 24 hours of reporting the issue. Stand up place! Thank you for such great service and support."

John M on January 2024


Avatar for Basement Waterproofing Nationwide Inc

Basement Waterproofing Nationwide Inc

4.81(
141
)
Approved Pro

Basement Waterproofing Nationwide Inc

4.81(
141
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
74 local quotes requested

Founded in 1987, Steve Taylor was passionate about providing homeowners with an honest approach to basement waterproofing and delivering exceptional customer service for every job. BWN swiftly built a reputable, trusted brand spanning across Maryland and Delaware. Today, as we look back over 35 years of business, our employee dedication and steadfast customer loyalty continue to fuel BWN’s success. This is best demonstrated by BWN’s abundant referral business and 55,000+ customers.

"Quick, efficient, super communication, great cleanup. Highly recommend."

Ellen H on October 2022

Founded in 1987, Steve Taylor was passionate about providing homeowners with an honest approach to basement waterproofing and delivering exceptional customer service for every job. BWN swiftly built a reputable, trusted brand spanning across Maryland and Delaware. Today, as we look back over 35 years of business, our employee dedication and steadfast customer loyalty continue to fuel BWN’s success. This is best demonstrated by BWN’s abundant referral business and 55,000+ customers.

"Quick, efficient, super communication, great cleanup. Highly recommend."

Ellen H on October 2022


Avatar for Solid Ground Solutions

Solid Ground Solutions

5.00(
40
)
Approved Pro

Solid Ground Solutions

5.00(
40
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
56 local quotes requested

With over 30 years experience in Basement Waterproofing and Mold Remediation services, Andrew A. Altman, Sr. Is a top rated veteran with a proven record beyond belief! In fact the certified, professional Staff has a combined experience of over 60 years. When you hire Best Buy Waterproofing, you are hiring the very best in the industry! They have the WIT attitude ( Whatever It Takes ) and customer satisfaction is their #1 priority as they are "Comitted To Excellence!" Best Buy Waterproofing is licensed, bonded, insured, and certified. They have earned the reputation of standing behind their incredible work and customer satisfaction. They offer free estimates and the very best financing available. They even have No payments & No Interest for 18 months! Best Buy Waterproofing stands behind their lifetime of the structure warranty on their systems. Also on all sump pump systems and their intelligent battery back ups! Best Buy is the ONLY company who offers this kind of warranty on those services as Strength is their Foundation! If you need a dry basement certificate, call us immediately. We are operational 24/7 365!

"Excellent job, excellent experience, highly professional workers!! What else can I say?! And the price was right and fair. They hit our basement waterproofing needs out of the park! Could not be happier!! Would highly recommend to anyone needing waterproofing!"

Joelyn M on July 2023

With over 30 years experience in Basement Waterproofing and Mold Remediation services, Andrew A. Altman, Sr. Is a top rated veteran with a proven record beyond belief! In fact the certified, professional Staff has a combined experience of over 60 years. When you hire Best Buy Waterproofing, you are hiring the very best in the industry! They have the WIT attitude ( Whatever It Takes ) and customer satisfaction is their #1 priority as they are "Comitted To Excellence!" Best Buy Waterproofing is licensed, bonded, insured, and certified. They have earned the reputation of standing behind their incredible work and customer satisfaction. They offer free estimates and the very best financing available. They even have No payments & No Interest for 18 months! Best Buy Waterproofing stands behind their lifetime of the structure warranty on their systems. Also on all sump pump systems and their intelligent battery back ups! Best Buy is the ONLY company who offers this kind of warranty on those services as Strength is their Foundation! If you need a dry basement certificate, call us immediately. We are operational 24/7 365!

"Excellent job, excellent experience, highly professional workers!! What else can I say?! And the price was right and fair. They hit our basement waterproofing needs out of the park! Could not be happier!! Would highly recommend to anyone needing waterproofing!"

Joelyn M on July 2023


"Martin's got it done right, on budget and on time. Martin and Ivan were great to work with. We love our new bathroom and connecting room. They did drywall, flooring, toilet and sink/vanity install."

Cameron B on September 2025

I have been doing home remodeling for 12 years Please call us for all your home remodeling needs 100% quality work guaranteed

"Martin's got it done right, on budget and on time. Martin and Ivan were great to work with. We love our new bathroom and connecting room. They did drywall, flooring, toilet and sink/vanity install."

Cameron B on September 2025



"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


Avatar for Tucks Waterproofing

Tucks Waterproofing

5.00(
8
)

Tucks Waterproofing

5.00(
8
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

One & Done Waterproofing offers professional waterproofing services to PA residents. With over 10 years experience in the industry, One & Done Waterproofing provides customized solutions to fit your needs. With our quality workmanship and guaranteed work you can trust One & Done Waterproofing will exceed your expectations to get the job done right the first time! Call today for your free estimate!

"I can’t recommend Tuck’s Waterproofing highly enough. They repaired two foundation wall cracks externally and put in a second sump pit with a battery backup for us. Throughout the process Tucker was extremely professional, very knowledgeable, patient in answering all of my questions, responsive (he came out twice to assess to assess, answer my questions, and provide a quote before beginning work), clean, and truly went beyond the scope of work to proactively address any other issues he saw. That is such a differentiator in my mind: he saw the primary sump pump line was cracked on the exterior pointed it out and and fixed it for no additional cost; when putting the dirt back for the external crack repair, he noticed the initial grading wasn’t great so he proactively graded for us; he also cut out a partially clogged pop-up line and replaced it with a new one rather than simply tying the new sump line into a poor one. His price was also very competitive relative to two other providers. I feel confident that if any issues were to arise going forward that Tucker would partner to address because his integrity is so apparent. It’s been a month and several rains since and our basement issues are clearly completely remediated. Ultimately we were so pleased with the entire experience and would highly recommend Tucker for water remediation issues. His crew left our basement cleaner than they found it, and we have literally nothing but positives so say about the entire experience."

Chris M on November 2022

One & Done Waterproofing offers professional waterproofing services to PA residents. With over 10 years experience in the industry, One & Done Waterproofing provides customized solutions to fit your needs. With our quality workmanship and guaranteed work you can trust One & Done Waterproofing will exceed your expectations to get the job done right the first time! Call today for your free estimate!

"I can’t recommend Tuck’s Waterproofing highly enough. They repaired two foundation wall cracks externally and put in a second sump pit with a battery backup for us. Throughout the process Tucker was extremely professional, very knowledgeable, patient in answering all of my questions, responsive (he came out twice to assess to assess, answer my questions, and provide a quote before beginning work), clean, and truly went beyond the scope of work to proactively address any other issues he saw. That is such a differentiator in my mind: he saw the primary sump pump line was cracked on the exterior pointed it out and and fixed it for no additional cost; when putting the dirt back for the external crack repair, he noticed the initial grading wasn’t great so he proactively graded for us; he also cut out a partially clogged pop-up line and replaced it with a new one rather than simply tying the new sump line into a poor one. His price was also very competitive relative to two other providers. I feel confident that if any issues were to arise going forward that Tucker would partner to address because his integrity is so apparent. It’s been a month and several rains since and our basement issues are clearly completely remediated. Ultimately we were so pleased with the entire experience and would highly recommend Tucker for water remediation issues. His crew left our basement cleaner than they found it, and we have literally nothing but positives so say about the entire experience."

Chris M on November 2022


Avatar for A Waterproofing Solution, Inc.

A Waterproofing Solution, Inc.

4.85(
13
)

A Waterproofing Solution, Inc.

4.85(
13
)
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Most basement waterproofing companies today are one dimensional, resulting in high pressure zero transparency sales methods that benefit the company not the customer. The one size fits all approach to basement waterproofing has no value to the customer. Our vision, is to custom tailor individual needs by taking a consulting roll, using experience and knowledge to find the best solution for your project. We also use the latest technology in diagnosing the issue and designing systems that function for the life time of your home. Basement waterproofing interior/exterior, foundation repair, mold remediation, crawlspace encapsulation, water and smoke damage restoration, basement egress Milestones and Success A+ Waterproofing Solutions founders have completed over 20,000 projects throughout Pennsylvania, New Jersey and Delaware. Experience, both in the trenches and years of technical design have fueled our success. Mission Statement Our mission is to revolutionize the waterproofing industry by operating with honor and Integrity in the pursuit of doing whats right for the homeowner.

"A Waterproofing Solution did an over the top job. The workers arrived on time, did the job and cleaned up af the end of each day. The men who came out in the beginning of this project were very prepared, explained the process and offered Veteran’s discount. They also explained how to get financing if needed. There were several heavy rains since the drain and pump were installed and the basement remained dry. Such a relief. Highly recommend this company. We had 5 estimates and chose A Waterproofing Solutions. We made the fight choice."

Bernadette B on November 2020

Most basement waterproofing companies today are one dimensional, resulting in high pressure zero transparency sales methods that benefit the company not the customer. The one size fits all approach to basement waterproofing has no value to the customer. Our vision, is to custom tailor individual needs by taking a consulting roll, using experience and knowledge to find the best solution for your project. We also use the latest technology in diagnosing the issue and designing systems that function for the life time of your home. Basement waterproofing interior/exterior, foundation repair, mold remediation, crawlspace encapsulation, water and smoke damage restoration, basement egress Milestones and Success A+ Waterproofing Solutions founders have completed over 20,000 projects throughout Pennsylvania, New Jersey and Delaware. Experience, both in the trenches and years of technical design have fueled our success. Mission Statement Our mission is to revolutionize the waterproofing industry by operating with honor and Integrity in the pursuit of doing whats right for the homeowner.

"A Waterproofing Solution did an over the top job. The workers arrived on time, did the job and cleaned up af the end of each day. The men who came out in the beginning of this project were very prepared, explained the process and offered Veteran’s discount. They also explained how to get financing if needed. There were several heavy rains since the drain and pump were installed and the basement remained dry. Such a relief. Highly recommend this company. We had 5 estimates and chose A Waterproofing Solutions. We made the fight choice."

Bernadette B on November 2020

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Foundation Repair questions, answered by experts

You can seal a concrete slab by cleaning the surface, filling in any cracks, etching the surface, applying a sealer, and letting it dry. Concrete slabs don't typically need sealing, but you can use a topical concrete sealer if you notice signs of water damage. If you haven't already fixed the cause of the leak, then you'll want to repair the plumbing before you seal a concrete slab.

Homeowner’s insurance doesn’t cover foundation cracks unless they’re a result of a natural disaster like an earthquake, vandalism, or a vehicle accident that causes sudden damage. Taking care of your foundation to prevent problems with expansive soil and drainage is considered ongoing maintenance, and your insurance company expects the homeowner to carry out that preventative maintenance.

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.

While it can be difficult to identify a bad foundation at first glance, look for large horizontal cracks, discoloration, bulging basement walls, or signs of water damage. You may also see large gaps between the home and the foundation on the outside or signs of pooling water from a recent storm.

The actual foundation repair costs will depend on the extent of the damage, how many blocks you need, labor costs, and material costs. As an estimate, the average repair costs for a cinder block foundation fall between $350 and $25,000. Because the range is so large, it’s important to call a professional foundation repair company and have them assess the damage and estimate the repair costs.

The Wilmington, DE homeowners’ guide to foundation repairs

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