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Top-Rated Foundation repair specialists in Gwynn Oak - Updated Nov 2026

Avatar for Quality 1st Basement Systems, Inc
Quality 1st Basement Systems, Inc
4.6(
230
)
Concrete Foundation - Repair

Serving Gwynn Oak, MD and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"I reached out to this company for a sump pump upgrade and a cracked wall repair. The technician who did my install was very polite and informative. We've had several big storms since my installation was done and I'm happy to say my basement has remained totally dry. I'm very glad I chose this company, I would recommend them to anyone in need of help with their basement!"
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+129

Response time10 hrs
Response rate100%
22 neighbors recently requested a quote
Avatar for JES Foundation Repair
JES Foundation Repair
4.5(
1,449
)
Concrete Foundation - Repair

Serving Gwynn Oak, MD and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"I called JES Foundation Company for a free inspection of my crawl space. I was concerned about a crack in my foundation wall. JES inspector Richard Sheman Showed up to inspect my foundation. He sent a text with the time of his arrival. He was pleasant and on time. He went into my crawlspace and inspected the crack in the wall and stated I had nothing to worry about. He was very knowledgeable about the foundation and itâ  s structure. He explain to me how I could fix the superficial settling crack and save a bunch of money. I appreciate the honesty of the business and I would recommend it to anyone who had the same concerns, and for any of their other services. Ron P Home owner."
Protect Your Basement
Correct Your Wet Basement
Waterproof Your Basement
Protect Your Concrete
Polyurethane Foam Injection

+12

457 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for AZALEAS TO ZINNIAS
AZALEAS TO ZINNIAS
4.7(
247
)

Serving Gwynn Oak, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Very well!! Kyle Hodges understood exactly what I wanted, and he and his team took out the unsightly cement walkway, and replaced it with a beautiful, wide, curving quartzite walkway at the front of the house and matching step-stones leading around, plus two wrought iron railings on the front porch. His team took about 6 work-days in August 2016 to complete the project (the railings were added later). The result is an elegant approach to my house that combines craft with art."
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+50

4 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for AA Action Waterproofing Inc
AA Action Waterproofing Inc
4.7(
383
)

Serving Gwynn Oak, MD and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"John from AA Waterproofing showed up on time to analyze the water problem coming through my foundation. He showed me a video that gave me all the alternatives to fixing it with the internal French Drain showing the best results - and warrantied for any future problems for both me and anyone who buys my house in the future. Although this is not an inexpensive solution, it appears to be the best. John did a nice job of responding to all my questions both during the inspection and afterwards. I did do some research on the costs and AA's bid came in down the middle range. The crew (4 men) showed up on time (actually an hour early) and immediately got to work covering all the steps down to the basement and the front entry way. They also put plastic covering over all the stuff in the unfinished basement. The work went quickly and neatly as could be expected. Sam, the foreman, did a good job of answering my questions and showing me the progress. They had 70 feet of internal digging and piping to be done to connect to a new sub pump that was part of the bid. All in all, the job too two days (much faster than anticipated) and looks good. After cementing (special hydro pressure cement) the wall where the crack existed, Sam also installed an extra mold proof walling over the that area. Overall, the work looks good with a nicely done cementing of the drain around the perimeter of my basement. So far we have not experienced enough rain to test the results, but I feel confident that this was the best solution done by a very competent company."
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+17

Response time9 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for G & D CONSTRUCTION
G & D CONSTRUCTION
4.4(
76
)

Serving Gwynn Oak, MD and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"G&D construction did a great job! They installed a 14 x 14 patio foundation for a shed. They were timely and responsive with the initial inquiries. The job was completed as expected. The team was professional and polite! Castillo and team were awesome!"
Concrete
Wood gate
Remodeling - General Project
Remodeling - General Project
Landscaping - Hardscaping & Pavers Project

+243

Response time2 days
Response rate100%
Recommended by81%of homeowners
Avatar for Basement Waterproofing Nationwide Inc
Basement Waterproofing Nationwide Inc
4.6(
188
)
Concrete Foundation - Repair

Serving Gwynn Oak, MD and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"This company impressed us from beginning to end! The estimate and finished price were far lower than other quotes, while the quality, speed & cleanliness of work was far superior to what others offered. They hung plastic sheeting & barriers surrounding the whole work area & used a ventilation system so there was never dust anywhere. ( Concrete dust is dangerous, not just messy!) The entire team ( 5 people 1st day, 3 on 2nd day) always removed shoes & treated our house & us with respect. They walked us through the steps of the job, showed us the work & the damage/ wet areas & the undamaged areas at several points as they were doing it (without being asked). Tested sump pump in our presence... without us asking. In addition to other source of water, they found a crack in the foundation & worked to examine the extent of damage.. which went all the way from outside in. They showed us the full damage, offered to fix this more completely, explained options to do or not do that work, but never pressured us. They provided life-of-structure warranty. They even told us they caused a tiny area of damage to woodwork on a window sill ( I would never have been upset about) when they were done THEY pointed it out and THEY spackled & fixed it ( like 5 min work.) The whole job took 1 and a half days. Like anyone, I was heartbroken to have started finding water in my finished basement & terrified of the cost & the process of fixing it. This company made this as affordable, convenient & low-stress as I can possibly imagine."
Additional Photos
Response time2 days
8 neighbors recently requested a quote
Recommended by89%of homeowners
All Aspects Waterproofing, LLC
4.6(
188
)

Serving Gwynn Oak, MD and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"I would recommend this company highly. I watched them do my entire waterproofing job and the work and steps they took to do the job correctly was impressive. They cleaned the entire area thoroughly after they were finished. You would never know that a Six foot hole had been dug in my yard."
Response time1 day
12 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for G&C VENTURES, LLC
G&C VENTURES, LLC
4.4(
215
)

Serving Gwynn Oak, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Emergency services offered

"I met with Dave (project manager) and we discussed extent of work needed to restore my stone patio after many years of neglect. A key feature of the repair plan was to install a border around the stone patio. Dave also recommended that we pull up most of the lower patio and establish a good base for the stones, and repoint the upper patio where mortar joints were degraded. I decided to go with Daves recommendations and Lopez ( crew supervisor) and his crew did a great job restoring the patio. I am looking forward to pressure washing the stone to bring out the color after the mortar has fully cured. I could not be more pleased with the results!"
landscape construction
Landscape Construction
Landscape Design
Landscape Design
Zero Maintenance Landscape Design

+177

Response time9 hrs
Response rate95%
59 neighbors recently requested a quote
Avatar for Blue Crab Home Solutions
Blue Crab Home Solutions
4.9(
99
)
Concrete Foundation - Repair

Serving Gwynn Oak, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Very professional and knowledgeable. Upon seeing our foundation crack, knew exactly what work needed to be done, was able to explain said work, and was patient in answering all of our questions and concerns. Results look exemplary. Looking forward to using them again in the future."
Decks
Decks
Decks
Decks
Decks

+103

Response time6 hrs
Response rate99%
553 neighbors recently requested a quote
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