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  • Verified reviews icon54
    Verified foundation repairs reviews

Top-Rated Foundation repair specialists in Elsmere - Updated Nov 2026

Avatar for Waterproofing One
Waterproofing One
4.7(
152
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationFoundation Drainage - Install or Replace

Serving Elsmere, DE and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"Our church was build in 1920s so the scope of the project increased as the initial water damage was worst than anticipated. Waterproofone addressed those issues and, installed a french drain system, rerouted water spouts, and added an external drain behind the rear of the church. Our basement has been dry ever since and all previous water damage has been replaced or repaired."
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+7

6 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Quality 1st Basement Systems, Inc
Quality 1st Basement Systems, Inc
4.6(
230
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RepairFoundation Drainage - Install or Replace+1 more

Serving Elsmere, DE and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"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."
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+129

Response time10 hrs
Response rate100%
22 neighbors recently requested a quote
Avatar for Basement Gurus, LLC
Basement Gurus, LLC
4.8(
217
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationFoundation Drainage - Install or ReplaceConcrete Foundation - Repair

Serving Elsmere, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Warranties offered

"Basement Gurus arrived to discuss our basement water issue. Dan patiently went over everything and listened to our concerns and answered our questions. He prepared a proposal to remove 4' of our patio and dig down to the foundation to waterproof the wall and fill the cracks from outside. He also suggested burying a downspout and pipe leading water away from the house and sealing the wall cracks on the inside basement wall. The team arrived as scheduled and worked incredibly hard for several hours a day. They were impressive in the system they followed and how much work they performed each day and were respectful of us and our property. By the end of the job everything was back in place. We wish the expense wasn't necessary, but felt the price was worth it due to the difficulty, the amount, and the quality of the work. We highly recommend Basement Gurus!!"
100 Ft 4 inch HDPE to drywell
Concrete Replacement
Egress Installation
Walls After Wall Pin Installation
After Concrete has been removed

+339

Response time1 day
538 neighbors recently requested a quote
Recommended by68%of homeowners
Avatar for Groundworks
Groundworks
4.2(
538
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationPoured Concrete Wall - RepairConcrete Foundation - Raise+1 more

Serving Elsmere, DE and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Warranties offered

"IT WENT VERY WELL. BQ SYSTEMS RESPONDED QUICKLY TO MY REQUEST ( HAD A NARROW TIME FRAME: HAD TO GET IT FIXED SO I COULD SELL MY HOUSE.) AND THE FOLKS AT BQ SYS. DID EVERYTHING THEY COULD TO HELP ME. THE REPAIR TO THE FOUNDATION WALL WAS COMPLETED IN LESS THAN ONE DAY AT A FAIR PRICE. I AND THE NEW OWNERS ARE VERY HAPPY WITH THE REPAIR!"
Protect Your Crawl Space
Protect Your Crawl Space
Protect Your Crawl Space
Correct Your Smelly Crawl Space
Protect Your Crawl Space

+16

25 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Basement Waterproofing Nationwide Inc
Basement Waterproofing Nationwide Inc
4.6(
188
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RaiseConcrete Foundation - Repair+1 more

Serving Elsmere, DE and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"I was having some issues with water coming into the basement through the foundation and walls during rainy weather. Not flooding, or even shop vac-able volumes, just enough to be annoying and require mopping. Dominic and his crew were here today to install an under-floor drainage system and a new sump pump. I was dreading the demo (I have a concrete floor) and the mess involved, but these guys came prepared for everything! They used dust abatement measures to protect all my basement-stored items, and they removed and hauled all the debris away when finished with the excavation. What really impressed me was the concrete restoration upon completion. I've previously had a sewer line replaced through the basement floor, and the contractor really "botched" the floor repair. I can't describe how different this experience was! The concrete installed today is immaculate! Dominic takes pride in his work and with good reason! The new concrete is perfect! I am thrilled!"
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Response time2 days
12 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Dry Tech Waterproofing Solutions
Dry Tech Waterproofing Solutions
4.4(
276
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Elsmere, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Customer service was on point. They came when they said they would, they did what they said they would. No hassle, no games. I had a foundation crack in my basement wall which was leaking every time it rained. They came on time (and it was snowing) for the free consultant. Estimate was provided on the spot. They came on time to do the job and did exactly as was described/on the contract. We then had a heavy rain storm the weekend after and the basement is dry."
Digging out the area
Filling in the crack
During
Insulation board is placed over the Water Shield
Water Shield

+24

Response time8 hrs
Response rate99%
177 neighbors recently requested a quote
Basement Waterproofing Specialists
4.0(
597
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RepairPoured Concrete Wall - Repair

Serving Elsmere, DE and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Excellent, hard working forman and crew who knew what they were doing. Foundation repair and installation of sump pit. pump and backup pump was completed in two days, as promised. Highly recommend."
Foundation Repair
 Before and After Stone Work
 Mirra Drain
 Mold Remediation
 Clean Work Areas

+67

Response time11 hrs
284 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Crawl Space Ninja of Delaware
Crawl Space Ninja of Delaware
4.5(
213
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Elsmere, DE and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"I was worried about damage to the property and FC HVAC were very responsive and helpful. Mike, our technician, went out of his way to be helpful and was able to fix the problem literally in 5 minutes! I've worked with Mike over the years at several properties and have found him and FC HVAC to be knowledgeable, skilled, helpful and responsive! :-) they stand by their work and their business."
Crawl Space Before
Crawl Space After
62 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for '58 Foundations
'58 Foundations
3.6(
45
)
Concrete Foundation - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Elsmere, DE and surrounding areas

Approved

In business since 1958

Free estimates

Warranties offered

"Led by Brett Boyles (foreman) out of the York/Red Lion area; Brett, Clarence and John took care of some flooding issues that have been plaguing us for years. They fixed cracked cinder block walls, they put in a BDry system that is BEAUTIFUL, they turned a passive French-Drain system into an active system, and they turned an unhealthy basement into one with healthy air quality. They worked so hard and were so courteous, I feel so much more relaxed now. Brett knows his stuff and the other guys were awesome as well. I am so grateful...NOBODY ELSE will touch my basement ever again.....only 58 Foundations!!! Thank you guys, very much. Sincerely, Dan Crum"
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing

+10

Response time2 days
1 neighbors recently requested a quote
Recommended by80%of homeowners
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Foundation Repair FAQs, answered by experts

Most houses are expected to settle over time, but foundation sinking of more than a few inches or uneven sinking of more than an inch for every 20 feet is cause for concern. Any significant or uneven sinking should be assessed by a professional to determine the cause and perform any necessary repairs. 

A slab-on-grade or slab foundation is a great option in many areas—usually in warm or moderate climates—and has been a successful foundation style for many decades. Slab foundations don’t require excavation or concrete block wall construction, so they’re the least expensive foundation type. They’re also the fastest to construct and don’t have many issues with moisture or water intrusion. However, they don’t give you extra storage space or potential living space like a crawl space or basement would, and they’re not ideal in colder areas where utility lines can freeze and frost heave can cause major damage.

Although some concrete cracks are cosmetic, others can be more serious. Cracks wider than ⅛ inch or that extend through the slab are serious and can cause structural damage. If you notice these types of cracks in your concrete patio, contact a local contractor who installs concrete patios to inspect the damage and determine how to fix it.

Generally, foundation cracks and repair are not covered by standard homeowners insurance policies. This type of damage is often considered normal wear and tear or a result of poor maintenance, which is the homeowner's responsibility. For example, damage caused by settling, shifting soil, or drainage issues is typically excluded.

However, there are exceptions. Coverage may apply if the foundation damage is a direct result of a covered peril, such as a house fire, a burst pipe, vandalism, or a vehicle accident. Coverage for natural disasters like earthquakes and floods often requires a separate, specific policy or add-on.

Foundation repair costs $250 for a minor crack that doesn’t affect the structure’s integrity, although it can cost as much as $800 if it’s a major crack. Call a pro to get it fixed as soon as possible if your crack is bigger than 1/8 inch wide. Additionally, if you need to seal the foundation to fix leaks, it can cost approximately $2,000 to $7,000.

The Elsmere, DE homeowners’ guide to foundation repairs

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