WILMINGTON & SURROUNDING AREA'S

#1 CONCRETE CONTRACTOR

Build Your Dream

Garage With the

Perfect Slab!

Planning a concrete project is a big investment. Let a trusted team of pros handle every step — from design to the final pour.

Book Free Estimate

Concrete garage slab pour in Wilmington NC by Bullet Concrete Construction

Garage Slabs in Wilmington, NC — Level, Reinforced & Built to Carry the Load

A garage slab takes more punishment than any other concrete surface on your property. It carries the static weight of vehicles parked day after day, absorbs the impact of tools and equipment being dropped, handles chemical exposure from oil, coolant, and road salt tracked in on tires, and sits directly on soil that shifts with Wilmington's seasonal moisture changes. That's why a garage slab can't be treated like a standard patio pour — it needs to be thicker, reinforced with steel, and poured over a properly compacted sub-base designed for heavy, sustained loads. Bullet Concrete Construction pours garage slabs for attached garages, detached garages, workshops, and oversized equipment buildings across the greater Wilmington area. We handle new construction garage slabs for builders and homeowners, replacement pours for cracked or sinking existing slabs, and standalone garage or workshop slabs on rural properties where the structure is separate from the house. Every garage slab we pour is a minimum of five inches thick with wire mesh or rebar reinforcement, control joints placed at calculated intervals, and a vapor barrier beneath the slab to block ground moisture from migrating up through the concrete.

Request a Free Garage Slab Estimate

GARAGE SLABS BUILT TO PERFORM

A solid garage slab is the foundation of a strong, long-lasting structure — and we make sure it’s done right. At Bullet Concrete, we specialize in precision-poured garage slabs that are level, durable, and built to handle heavy use. Whether you're constructing a new garage or replacing an old foundation, our team ensures every project meets code and exceeds expectations.

Request An Estimate

Garage Slab FAQs

How thick should a concrete garage slab be?

A residential garage slab should be a minimum of five inches thick — thicker than a standard four-inch patio slab — because it needs to support the sustained weight of vehicles, equipment, and storage. For workshops, oversized garages, or buildings that will hold heavier equipment like boats, trailers, or lifts, we may recommend six inches or more with additional rebar reinforcement. Every garage slab we pour also includes a compacted gravel sub-base beneath the concrete and a vapor barrier to block ground moisture from migrating up through the slab. We'll assess the intended use during your estimate and recommend the right thickness and reinforcement for your specific project.

What causes a garage slab to crack or sink?

The two most common causes are inadequate sub-base compaction and poor drainage. If the soil beneath the slab wasn't properly compacted before the pour, it can settle unevenly over time — especially in Wilmington's sandy coastal soil, which shifts more readily than clay-based soils in other regions. Water pooling under or alongside the slab accelerates this settling and can erode the sub-base entirely, causing sections to sink. We prevent this by mechanically compacting the sub-base, installing proper drainage grading around the slab perimeter, and placing control joints at calculated intervals so any natural concrete movement occurs along planned lines rather than random cracks.

Can you replace an existing cracked garage slab?

Yes. Full garage slab replacement is a common project we handle. The process includes demolishing and removing the old slab, re-grading and compacting the sub-base, correcting any drainage issues that contributed to the original failure, and pouring a new reinforced slab built to the correct specification. If only a section of the slab has failed while the rest is structurally sound, a partial replacement may be possible — we'll assess the full slab during the estimate and recommend the most cost-effective approach that delivers a lasting result.

Do I need a permit for a garage slab in Wilmington?

If the garage slab is part of new construction — whether it's an attached garage, a detached garage, or a workshop — a building permit is typically required in the City of Wilmington, New Hanover County, and the surrounding jurisdictions in Brunswick and Pender Counties. A standalone slab replacement on an existing structure may or may not require a permit depending on the scope and jurisdiction. We'll confirm the permitting requirements for your specific project during the estimate and coordinate with inspectors to keep the work on schedule.

Should a garage slab have a vapor barrier?

Yes — especially in southeastern North Carolina, where the water table is high and ground moisture is constant. A vapor barrier is a polyethylene sheet placed between the compacted gravel sub-base and the concrete before the pour. It prevents moisture from wicking up through the slab, which can cause surface efflorescence, damp spots, and deterioration of anything stored directly on the floor. It also protects epoxy coatings or paint finishes that some homeowners apply after the slab cures. We include a vapor barrier on every garage slab we pour as standard practice — not as an optional add-on.

How long before I can park on a new garage slab?

We recommend waiting a minimum of seven days before parking a standard passenger vehicle on a new garage slab, and at least fourteen days for heavier vehicles like trucks or SUVs. Concrete reaches about 70 percent of its full strength in the first week and continues curing for up to 28 days. Parking too early — especially with heavy vehicles — can cause surface indentation and stress cracking before the slab has hardened fully. Wilmington's coastal humidity can slow the curing process slightly, so we provide specific timelines based on current conditions when your project is completed.

SLIDE THROUGH OUR PROJECTS

Garage Slab Contractor Serving Wilmington, NC & the Surrounding Coast

Bullet Concrete Construction pours reinforced concrete garage slabs for attached garages, detached garages, workshops, and equipment buildings across southeastern North Carolina. Whether you're building new, replacing a failed slab, or adding a standalone garage on a rural lot, we handle every step — grading, sub-base compaction, vapor barrier, forming, steel reinforcement, the pour, finishing, and control joint placement — so you get a flat, level surface engineered to carry vehicle weight and hold up to daily use for decades.

Garage slab projects look different depending on the property. In Castle Hayne, Rocky Point, and Winnabow, homeowners with larger rural lots often need standalone workshop slabs or oversized garage pads built to hold boats, trailers, and heavy equipment. In Leland and Hampstead, new-construction homes frequently need a garage slab upgrade from the builder's minimum spec to support heavier vehicles or future workshop use. On barrier island and waterfront properties in Wrightsville Beach, Carolina Beach, and Southport, garage slabs face added moisture exposure from high water tables and salt air, making proper vapor barriers and drainage grading critical. We assess the conditions on your specific lot and build accordingly. Contact us for a free garage slab estimate.

Wilmington Wrightsville Beach Leland Rocky Point Castle Hayne Hampstead Carolina Beach Winnabow Southport