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TRUSTED BY ADELPHI, MD HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon110
    Verified foundation repairs reviews

Find Foundation repair specialists in Adelphi

Avatar for NV Waterproofing & Foundation Repair
NV Waterproofing & Foundation Repair
4.5(
185
)
Concrete Foundation - RepairFoundation, Basement or Crawlspace - Waterproofing / EncapsulationFoundation Drainage - Install or Replace+1 more

Serving Adelphi, MD and surrounding areas

Approved (Corporate)

In business since 1986

Free estimates

Emergency services offered

"Mauricio and Crisjan were the initial sales reps who came to examine the issue and they took the time to test drainage that might have potentially been creating the water issue. They offered a reasonable solution (sealing the visible cracks and holes in the concrete and I was contacted within a couple of days with an estimate and scheduling options. Sean was our tech and he did a fantastic job diagnosing the issue beyond just the cracks. He not only address all the holes and cracks in the concrete and mortar, he sealed up additional entry points above the foundation. He sourced additional materials to cover openings for cable lines. He went above and beyond and gave us measured information on how we should continue to monitor and treat this area as the house settles. He was thorough, informative, and provided excellent service in his work. I'm very glad that Sean was the technician sent to us and I would specifically request him for your projects."
Crawlspace Encapsulation
Damp dirty crawlspace with Rodent infestation
Additional Photos
Exterior drainage
Wall Anchors for failing foundation walls

+29

Response time1 day
Response rate99%
45 neighbors recently requested a quote
Avatar for JES Foundation Repair
JES Foundation Repair
4.2(
1,023
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RepairFoundation Drainage - Install or Replace+2 more

Serving Adelphi, MD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"Howard Glancy came to inspect cracks in my home's concrete walls where the foundation was sinking. He, as a Certified Field Inspector, went over the whole house with me, explaining why the walls were cracking, and what should be done to alleviate the problem. Howard explained what JES Foundation would do, approximately how long it would take, and provided a quotation for the repairs. Besides raising the problem walls and ensuring they would be structural sound and guaranteed to stay that way for the remaining life of the house, he also advised me of how JES would repair minor cracks in the remaining building as well as having s sump pump installed to wick away any ground water from damaging any other parts of the structure. Mr. Glancy was very courteous; knowledgeable of his profession; and walked us through any questions we might have had concerning the processes. Due to the permit process taking so long, the work on the house won't start for a few months, and if Mr. Glancy is any indication of the professionalism of the rest of the JES Foundation personnel, I'm confident that the work will be done properly, in a timely manner and to my complete satisfaction."
Protect Your Basement
Protect Your Basement Before & After
Correct Your Wet Basement
Waterproof Your Basement
Protect Your Concrete Before & After

+16

358 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for AA Action Waterproofing Inc
AA Action Waterproofing Inc
4.7(
383
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationFoundation Drainage - Install or Replace

Serving Adelphi, MD and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Jason was excellent and I will absolutely use AA Action Waterproofing for future projects. After having two other companies provide estimates for fixing our basement leak problem, I called AA Action for a third quote. The first two companies recommended extensive indoor and outdoor remedies with expensive price tags. I was a bit surprised because our leak is very minor. Enter Jason. Jason was friendly and clearly had extensive experience. He assessed the problem and pointed out that, while we could of course undertake the considerable actions the other companies recommended, it was more than likely that a simple fix of rerouting our gutter drain would fix our problem - a $20 fix that we could do on our own vs. the thousands of dollars in repairs recommended by the other companies. He told us that he could not honestly take our money knowing this small fix was likely all that was required. The remedy worked. It's rare to find Jason's honesty in the home contracting world; I will definitely call AA Action for any future issues."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+17

Response time9 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Basement Waterproofing Nationwide Inc
Basement Waterproofing Nationwide Inc
4.6(
183
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RepairConcrete Foundation - Raise+1 more

Serving Adelphi, MD and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"We got 5 estimates from companies regarding a leak in our office and adjoining storage unit. This was the only company that accurately pinpointed the problem , which was a leak coming from gaps surrounding our electrical conduit pipe. Other companies had quoted us 6400$ to dig up the front yard and redo everything from the outside. Others wanted to dig up the inside. I’m so glad Mike explained everything to me clearly- and it all came down to common sense. These guys found the exact spot where the leak was coming from, and knew how to fix it. He also suggested replacing our sump pump because it was the original, and mud was starting to back up. He suggested we do this as it would be tragic to fix one problem and have another occur (and subsequent flooding) that could have been prevented. There was a minor connectivity issue with the sump pump a couple weeks later but I called at 9 am, the man who took the call put it in as an emergency because of some water splashing out and the problem was fixed by 11 the same day. Great responsiveness and customer service. I feel confident in my decision to choose this company, and would recommend them to others."
Additional Photos
Response time2 days
33 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for G & D CONSTRUCTION, LLC
G & D CONSTRUCTION, LLC
4.4(
76
)
Poured Concrete Wall - Repair

Serving Adelphi, 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 rate94%
2 neighbors recently requested a quote
Avatar for Drainage and Erosion Solutions
Drainage and Erosion Solutions
4.2(
308
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationFoundation Drainage - Install or Replace

Serving Adelphi, MD and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

"I highly recommend DES! I arranged a consultation after a home inspection report indicated that there was moisture in our basement walls. I was worried that costly mitigation efforts would be required. A friend who had previously used DES for a basement water problem highly recommend them, telling us that they were an honest company that only does what is necessary to solve a problem. Happily, Mark Fine from DES inspected both our basement and our exterior grounds and reported that there was no indication of cracks in the foundation or water intrusion, and that no work needed to be done. It is so refreshing to have a company that doesn't try to sell expensive services when they are not necessary!"
The property before we began.
First step - demolition
Regrading and Patio
Regrading and Patio
Regrading and Patio

+66

Response time1 day
Response rate91%
4 neighbors recently requested a quote
Avatar for Tru Integrity, LLC
Tru Integrity, LLC
4.8(
121
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Adelphi, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"Tru Integrity, LLC lives up to their name. My basement flooded twice this year due to sump pump failures so my husband and I knew it was time to make some major changes. We interviewed 3 companies, even big name companies and Wendell (the owner) was the only one that explained things and did a thorough assessment of our property to figure out how to fix our sloping and minor foundation issues and within our budget. His team arrived on site on time and worked a full day until the job was completed. Our basement was left cleaner than they found it. We added another sump pump due to the size of our basement and that drain well looks better than our original. This will allow any water that maybe overworking the main pump to be redirected and pumped out on the opposite side of the house. I'm happy with the look and everything is so quiet now."
Crawlspace flooding
Sealed Crawlspace
9 ft excavation and wall pre-seal preparation
Membrane Waterproofing
Waterproofing around sewer lines and utilities

+19

Response time1 day
13 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Brother's Waterproofing, LLC
Brother's Waterproofing, LLC
4.8(
43
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Adelphi, MD and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"Brothers Waterproofing did an excellent job sealing a crack in my basement wall. John was very professional and knowledgeable, and that is why I chose Brothers Waterproofing over other contractors. Given I had to rip open my basement walls to fix the crack, I wanted to be sure I employed someone with a sound approach and lasting product so that I didn't have to rip open my walls again. And, John and his team did an exceptional job. They sealed both sides of my basement wall and used quality products to secure the wall to prevent leaking in the future. I would recommend Brothers Waterproofing to anyone seeking out an honest and trustworthy contractor who will stand by his product and promise (which you honestly don't find nowadays). A+ service!"
Brother's Sub Floor Drain System
Sump Pump
Stairwell Rebuild
Stairwell Rebuild
Stairwell Build

+1

Response time1 day
Response rate88%
34 neighbors recently requested a quote
All Aspects Waterproofing, LLC
4.6(
188
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Adelphi, MD and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"My experience with this company was great. I was able to tell them my issues and they gave me several options. Ultimately we went for the full French Drain system. Everything was done on time and the estimates were very fair. Warranty on the work is great. I would call them again if needed."
Response time1 day
22 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for AFFORDABLEBASEMENTWATERPROOFING.COM INC
AFFORDABLEBASEMENTWATERPROOFING.COM INC
4.0(
108
)
Foundation Drainage - Install or ReplaceFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Adelphi, MD and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"The work was excellent, however what was described and what was done differed. The maximum was described as the most extensive repairs. The repair entailed minimal digging and just the sealing of the main drain. It just 3.5 feet below the ground. One shrub was removed. They did not dig to the foyndation since they felt they found the issue. They did not reduce the price and that disturbed me since it was discussed."
Waterproofing
Waterproofing
Waterproofing
Waterproofing
Waterproofing

+88

Response time1 day
1 neighbors recently requested a quote
Recommended by83%of homeowners
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Foundation Repair questions, answered by experts

Yes, slab leaks are fairly common, especially in older homes and places that are prone to earthquakes which can move home foundations.

Yes, it’s worth it to repair a crawl space foundation, even if the issue seems relatively minor. Foundation problems often get worse and more expensive to fix if you leave them untreated. Additionally, your entire home, from the framing and flooring to the roof system, relies on the foundation for even and level support. Issues with your foundation will almost always manifest as problems in and above your living space, so it’s important to find a solution.

Yes, a house can collapse from severe foundation problems if they are left unchecked. However, this is a rare occurrence that typically takes many years to develop, and a partial collapse is more likely than a full one. Homes on hillsides or in areas with frequent washouts are at a higher risk. Barring a natural disaster or other extreme circumstances, clear signs of major issues will be apparent long before a collapse is imminent. It is crucial to conduct routine foundation inspections and address any problem, no matter how minor it seems, as soon as possible to avoid threatening the structural integrity of your home.

If you don’t have any access to or knowledge of any area underneath your home, chances are it’s built slab-on-grade. You can also look for the concrete around the bottom edge of your structure; if it’s just a few inches tall, it’s likely a slab. If it’s more than that, has any windows, or you have steps leading to your main entrance, you likely have a different foundation style.

Yes, sustainable mixes and sealants minimize environmental impact.

The Adelphi, MD homeowners’ guide to foundation repairs

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