Foundation, Basement, and Crawl Space Repair in Wilmington, DE
Strengthen your home's foundation, basement, or crawl space with patented solutions from Groundworks. We address damp crawl spaces, foundation settlement, and more, ensuring your Wilmington residence stands strong against future challenges.
Expert Foundation, Basement, and Crawl Space Repair in Wilmington, DE
Wilmington is located in the northeast corner of Delaware in the Atlantic Coastal Plain. The city’s climate is influenced by its proximity to the Atlantic Ocean in the east and Chesapeake Bay in the southwest, bringing warm, humid summers and mild winters. The predominant clay soil, though typically well-drained, can become saturated due to abundant rainfall, presenting challenges for homeowners. If your basement is damp or leaking, or if you are experiencing structural issues with your home’s foundation, contact us. With over 20 years of expertise in addressing these challenges and offering proven solutions, we can assist in restoring your home to its original state, ensuring stability for your Wilmington residence.
Solutions offered in Wilmington, DE

Foundation Repair
When problems with your home’s foundation arise, it can bring a variety of other issues along with it. Here’s how our specialized solutions can repair your home’s foundation to it’s original stability.

Basement Waterproofing
Curious about wet basement repair? Groundworks provides local residential and commercial basement waterproofing services. We offer free inspections!

Crawl Space Repair
When it comes to the health of your home’s crawl space, there are many factors and problem signs at work. Knowing what the signs are could help you indicate that it’s time for repairs.

Concrete Lifting
The stability and consistency of the concrete around your home is an important factor to it’s overall aesthetic and wellbeing. Here’s what you should know about the concrete lifting options for your home.
Groundworks Service Areas
Foundation Repair:
Bowing Walls
If you notice cracking or bowing walls in your Wilmington home, it could indicate soil issues or hydrostatic pressure impacting the foundation. Left unaddressed, these issues can jeopardize your home’s stability. Groundworks’ wall anchors offer a permanent fix, stabilizing foundation walls and ensuring long-term safety and stability for your Delaware home.
Sticking Windows & Doors
If you are having difficulty opening doors and windows in your home, or if they are sticking to the latches, it could be a sign of foundation sinking or settling. Elevated humidity indoors, tree roots damaging concrete slabs, or rotting wood in the crawl space may contribute to these issues. Groundworks’ foundation repairs ensure your home remains stable and strong, restoring the functionality of doors, windows, sidewalks, and more.
Foundation Wall Repair
If your foundation is unstable, it can lead to various problems within your home. When signs of issues emerge, such as cracks or leaning walls, it often indicates foundation failure and the need for repairs. Our SettleStop IntelliBrace™ wall repair system stabilizes your walls and safeguards your foundation.
Basement Waterproofing
Basement Water Damage
Basement water damage can create the ideal environment for mold growth and other issues. Prolonged moisture exposure can also compromise your home’s structural integrity, posing safety and health risks to your family. Groundworks’ experts have the expertise to address basement water damage and provide customized solutions to mitigate these risks.
Foundation Waterproofing
If you observe pools of water accumulating around the edges of your foundation following heavy rainfall, it is a sign that your Wilmington home may require foundation waterproofing. This pooling can result in structural issues stemming from inadequate waterproofing measures during construction. Our comprehensive solutions keep your basement dry and ensure permanent waterproofing for your foundation.
Basement Sump Pump
Basement flooding is a common occurrence in Wilmington due to the area’s year-round rainfall. Installing a sump pump is crucial to prevent water damage. Here’s how it works: water entering the basement is collected by an interior drainage system and directed to a sump pit. When the water reaches a certain level, a float switch activates the pump, which then expels the water through a discharge line, diverting it away from your basement.
Crawl Space Repair
Crawl Space Mold
Mold requires moisture and organic materials to thrive, both commonly found in crawl spaces. Discovering mold in your Delaware home can cause concern due to potential health risks and structural damage. Resolving mold issues necessitates identifying and addressing the root cause, often excess moisture. Groundworks’ patented crawl space repair and encapsulation methods ensure your Wilmington residence remains dry and healthy for the long term.
The Stack Effect
The stack effect, also known as the chimney effect, refers to the process of warmer, lighter air rising and colder, dense air sinking. This phenomenon occurs due to open crawl space vents and unsealed doors. It can lead to mold growth, and spores spreading throughout your home’s indoor air, increasing energy bills due to elevated humidity. Covering vents and crawl space encapsulation methods resolve moisture and prevent your Wilmington, DE, home from experiencing the stack effect.
Crawl Space Encapsulation
Crawl space encapsulation seals out moisture and prevents pests from infiltrating the area. Our experts begin by inspecting the crawl space, addressing existing issues, and then sealing it with a durable 20-mil plastic vapor barrier, ensuring protection from the elements. This provides a permanent solution to water damage, offering assurance for your family.
Concrete Lifting
Commercial Concrete Repair
Groundworks relies on the patented PolyRenewal™ concrete lifting injection to lift and stabilize uneven concrete slabs, such as sidewalks, driveways, patios, and roadways. PolyRenewal™ uses a two-part polyurethane foam that expands to fill voids, lift, and stabilize concrete, and potentially restores concrete surfaces to their original state.
Concrete Sidewalk Repair
Concrete sidewalks and walkways endure daily wear and tear. Shifting or settling soil beneath the concrete slabs can cause cracks, sinking, and uneven surfaces, posing tripping hazards. Soil voids or gaps, often from erosion, rainwater runoff, or tree roots, exacerbate these issues. Our patented concrete lifting solution fills gaps and lifts sinking sidewalks, preventing further sinking without the need for complete slab replacement.
Concrete Step Repair
PolyRenewal™ is a practical and affordable solution for concrete step repair. The concrete around your home sinks and settles due to loose soil, tree roots, and water damage. PolyRenewal™ foam injections require 20 minutes to cure, so you can use your steps on the same day without disrupting landscaping or your daily routine.
Common Issues in Your Home
Common Foundation Solutions
Common Solutions in Wilmington, DE

Crawl Space Mold Problems
Mold infestation in crawl spaces is common, creating poor air quality and health issues. Learn the causes and preventative solutions.

Basement Sump Pump
Water leaking into your basement can be a real pain to deal with. What is the most effective solution for keeping your basement clean and dry?

Dehumidifier
Preserve indoor air quality and prevent mold and wood rot with our basement air systems.

Wall Anchors
Wall anchors can help strengthen your foundation so it doesn’t fail. What can you get out of wall anchors in your home overall?
We get it right the first time around.
We are experts at what we do, and you deserve the best customer service and repair solutions installed the right way. That’s why we go the extra mile.
Frequently Asked Questions
Soil erosion is defined as a natural occurring process in which soil wears away due to an external factor. Soil erosion is extremely detrimental to your property because it displaces the soil that is supposed to be holding up your home. Without the soil, your foundation is at the mercy of any extra weight, pressure, or movement that comes from within or outside your home. Soil erosion can cause settling, ruin the way water flows through your property, and allow for the over-saturation of soil. All in all, it’s a pretty disruptive occurrence for a homeowner.
Sagging floors is one of those problems homeowners don’t usually see to right away. Sometimes, the floor begins to sag slowly over time, so it may not seem like a big deal as homeowners become accustomed to walking on an uneven floor. Other times, the thought of having to replace the floorboards and wooden joists is such a hassle that homeowners would rather put it off for later. However, did you know that if you act fast, not a single piece of wood in your foundation needs to be replaced? It all depends on what’s causing the sag and how quickly you’re able to fix it. One of the reasons your floor is sagging is because of damaged wood. This can be either due to breakage or due to wood rot. If it’s wood rot, you can kill the mold if it hasn’t softened up the wood significantly. To make sure the wood rot is completely gone and to protect yourself from manipulating dangerous chemicals yourself, contact an expert who can eliminate the rot and coat the wood with a primer to strengthen it. Another reason your floor is sagging would be due to foundation settling.
Uneven concrete slabs are pretty dangerous on their own, but things get even riskier if it’s an uneven pool deck. The settling that occurs around pool decks are more likely to cause accidents because of the water, and those that don’t know how to swim run the risk of falling into the pool. But what exactly causes uneven pool decks? Is it the same thing that causes concrete settling in your driveway or garage? Well, sort of, but there’s a bit of a twist to it that involves the pool’s construction. A pool is made by digging a hole large enough to fill a pool. Once all the walls are put into place, soil is backfilled around the excavated area until there’s no sign of the hole. The problem with this is that while the soil surrounding the pool is compacted, dense, and capable of holding up the pool, the soil that’s used as backfill is very loose. Because of the soil’s looseness, when the concrete slabs are poured over the soil, it compresses together, forming a gap under the concrete that causes settling. There’s very little that can be done about this during the construction of the pool itself, so all you can do as a homeowner is repair the settled slabs.
The Wall Anchor System permanently stabilizes your foundation walls, offering the best opportunity to straighten the walls without the cost and disruption of foundation replacement. Heavy-duty, galvanized earth anchors are embedded in stable, undisturbed soil outside your foundation wall. Each anchor is connected by a steel rod to a wall plate that provides clamping pressure against the inside of the foundation wall. This method also offers the potential to straighten the wall back to its original position. Wall anchors are the most versatile wall repair method because they can be used to stabilize walls with a variety of problems, including bowing walls, tipping walls, and walls that are pushing in at the bottom. Wall anchors are installed independently of a home’s floor systems, making them the ideal installation under appropriate conditions. In order for a wall anchor system to work effectively, several feet of access is needed on the outside of your home. In areas where homes are only a few feet apart, wall anchors are not a valid option. If this is the case in your situation, we will recommend another wall repair option.





