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  • Written by
    Max Peterson
  • Fact Checked
  • Updated

Wilmington gets 46 inches of rain each year, so local residents need firm foundations to safeguard their homes. You should call a foundation contractor as soon as possible after noticing cracking or shifting walls. Start your foundation company search with these Wilmington contractors.

10 Best Foundation Repair Companies in Wilmington

Brands are algorithmically curated from a database of local service providers near you. We require a minimum number of Google reviews and average ratings for provider inclusion.

Featured Partner
Groundworks Logo
Top Rated

Groundworks

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 1007 reviews


106 Park Dr, Montgomeryville, PA 18936

(267) 708-6616

www.groundworks.com/locations/groundw...
Featured Partner
JES Foundation Repair Logo
Top Rated

JES Foundation Repair

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 720 reviews


8361 Town Center Ct, Nottingham, MD 21236

(410) 873-7979

www.jeswork.com/service-areas/baltimo...
Adam Basement Waterproofing Logo

Adam Basement Waterproofing

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 114 reviews


563 Walther Rd, Newark, DE 19702

(302) 565-2929

www.adambasement.com
DiGiacomo Construction, Inc Logo

DiGiacomo Construction, Inc

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 20 reviews


1994 Concord Rd, Chester, PA 19013

(610) 497-0300

www.digiacomo-construction.com
Dry Guys Basement Systems Logo

Dry Guys Basement Systems

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 327 reviews


450 N Main St, Woodstown, NJ 08098

(609) 301-5556

www.dryguys.com

Tri-State Concrete Leveling

4.5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 18 reviews


135 Beechtree Dr, Broomall, PA 19008

(610) 795-5941

www.tristateconcreteleveling.com
Basement Systems USA Logo

Basement Systems USA

4.5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 189 reviews


2092 E Old Philadelphia Rd, Elkton, MD 21921

(410) 858-4610

www.basementsystemsusa.com
Main Line Waterproofing Logo

Main Line Waterproofing

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 64 reviews


20 S Cedar Hollow Rd, Paoli, PA 19301

(610) 642-4444

mainlinewaterproofing.com
DMR Waterproofing Logo

DMR Waterproofing

4.7/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 76 reviews


2015 Valley Hill Rd, Malvern, PA 19355

(610) 314-1792

dmrwaterproofing.com
Forever Dry Basement Waterproofing, Inc Logo

Forever Dry Basement Waterproofing, Inc

4.7/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 21 reviews


2159 Valley Hill Rd, Malvern, PA 19355

(610) 304-1342

www.foreverdrybasements.com

Facts about Wilmington

  • Average Max Temperature:
    62°F
  • Average Min Temperature:
    46°F
  • Average Monthly Precipitation:
    3.75”
  • Percent of Homes With Basements:
    10%
  • Average Cost of Foundation Repair:
    $3,162
  • Average Cost of Foundation Waterproofing:
    $3,321

Common Causes of Foundation Problems in Wilmington

A home in Wilmington might experience foundation issues for various reasons. Some are specific to the local environment, while others are common nationwide. They include:

  • Standing water: Water accumulation around your home can threaten your foundation's integrity, especially when it collects in areas your gutters don't protect.
  • Improper modifications: Roofing or landscaping work that wasn't done to standard could result in your foundation settling.
  • Soil composition: Soil with large clay or sand concentrations is highly expansive. In the heavy rainfall Wilmington receives, the soil soaks up moisture like a sponge, then releases it in dry seasons. The constant expansion and contraction presses against nearby foundations, even if the foundations keep dry.
  • Aging plumbing: Wilmington has its fair share of older homes, with a median building year of 1958. Many of these properties use cast-iron plumbing. When the pipes start to erode, leaking water could reach your foundation and even pool beneath it.
  • Tree Roots: Tree roots can intrude into a home's foundation through crevices, and may apply force that leads to your foundation fracturing, pipes rupturing, and overall structural weakening.

How to Choose the Best Foundation Repair Company

Choosing a foundation provider doesn't have to be challenging. We encourage you to write down what you expect most in a contractor, then evaluate each provider on your selection against these characteristics.

Licensing and Experience

In Delaware, foundation companies don't have to get a state license, but they must still register with the Delaware Department of Labor. Once a company is registered, it must follow licensing requirements in each city in its service area. We recommend consulting your local government for more information on licensing, registration, and permit requirements. You can also get a sense of a company's experience through what its representatives say. Inquire about its inspection methods, local building regulations, permit-pulling procedures, and fees. One of the most effective ways to evaluate a company's reputation is to browse its website. Look for the company's years in business and what credentials its team holds. Many leading companies offer educational content for future customers.

Customer Reviews

Before choosing a company, review its online profile with the Better Business Bureau (BBB). You can examine both positive reviews and complaints. Complaints aren't necessarily a red flag in themselves. Instead, discover how a company handles them. If the management team consistently and proactively resolves issues, it's a good sign. However, if the company lacks accreditation, shows more negative reviews than positive ones, and doesn't communicate effectively, you should avoid working with it.

Lastly, we recommend you search additional sites, such as Trustpilot and Google, for other reviews.

Foundation Repair Cost in Wilmington

The price of foundation repair can differ quite significantly depending on the scale of the issues and what's needed to resolve them. For minor foundation fissures and settling problems, you may pay as little as $1,900. However, if there is considerable damage, the average cost lands at about $3,200. More intricate projects involving tunneling, helical piers, or major mudjacking could cost upwards of $7,000.

See below the average foundation repair costs for common issues.

Common Foundation Repair ServicesAverage Cost
Crack Repair$370
Leak Repair$3,004
Stabilization$5,226
Underpinning$1,416
Waterproofing$3,321

Frequently Asked Questions about Foundation Repair in Wilmington

More Foundation Resources

National Foundation Repair Ranking Methodology

Mold Remediation Cost Guide

Sources

U.S. Census Bureau (American Communities Survey)

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