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    Average homeowner rating
  • 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
474 neighbors recently requested a quote
Recommended by68%of homeowners
Avatar for Groundworks
Groundworks
4.2(
538
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - 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

42 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

"Excellent job repairing a crack in our poured concrete basement wall. Had to dig down to the bottom of the foundation, seal the crack, and back fill the hole - clean up was so good you didn't know work was even done. Very satisfied with the initial estimator, the job foreman, and the crew. The price was competitive with other estimates we received. Would recommend this company."
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%
161 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
268 neighbors recently requested a quote
Recommended by86%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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Showing 1-10 of 209
Foundation Repair FAQs, answered by experts

A leak under your foundation from a water supply line or sewage line is likely to lead to water pooling on certain areas of your property during rainfall, abnormally fast-growing or green grass in certain sections of your lawn, and differential settlement of your foundation, which can result in large foundation cracks, windows and doors failing to operate properly, a wavy or sloping roofline, or damages or irregularities in your interior walls, including cracks and bulging. If it’s a plumbing line embedded in your slab, you’ll also likely notice above-average water bills.

The best solution to fix a foundation crack in your basement floor depends on the underlying cause. If you just have hairline cracks from settlements that are no longer growing, the best option is to seal them with a crack sealant. If the cracks continue to grow, one edge rises above the other, or there are signs that water is getting in through the crack, a professional repair will be necessary. Depending on the root cause, your professional may employ foundation underpinning or some other type of stabilization, seal the cracks, or install a drainage system.

The best foundation repair method will depend on the issue you’re having, but usually, foundation instability is best fixed using supportive piers, like steel piers or helical piers. A professional foundation repair contractor or structural engineer should always decide what the best course of action is, and even then, it’s imperative that you also take measures to treat the underlying issue as well, like soil erosion or oversaturation from runoff.

If improperly installed, an egress window can compromise your foundation’s structural integrity, so it’s important to work with a pro to ensure your foundation remains in good shape. Any money you may save on a DIY egress window installation may cost you in the long run if your foundation is damaged in the process.

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.

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.