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Concrete Slab Foundations Done Right

Poured slab foundations for additions, garages, and outbuildings.

About Our Concrete Slab Foundations Service

Whether you're adding a new room, building a garage, or pouring a patio, the slab is the foundation everything else depends on. We dig, form, set rebar, and pour reinforced slabs to code. Proper drainage, vapor barrier, and curing for a base that lasts.

What's Included

  • Excavation, forming, and grading
  • Reinforced rebar grid and vapor barrier
  • Code-compliant footings
  • Proper finishing and curing
  • Patios, garages, additions, sheds

Concrete Slab Foundations — Common Questions

How much does a concrete slab foundation cost in NJ?

Concrete slab pricing is calculated per square foot and depends on slab thickness, rebar specification, and site prep complexity. A standard finished pour with rebar grid, vapor barrier, and 4-inch thickness is the baseline. Thicker slabs (garages, additions designed to support a future second story) cost more. We measure on-site and provide an itemized estimate based on the actual scope.

Do I need a permit for a concrete slab in New Jersey?

Permits are required for any slab that's part of a habitable structure (additions, garages, outbuildings over 100 sq ft). Pure patio slabs without coverings usually don't need permits but it depends on your municipality. We pull required permits as part of the job and itemize the cost.

How long does concrete take to cure before I can build on it?

Concrete reaches roughly 70% of its design strength in 7 days and full strength in 28 days. For load-bearing work like a garage frame or addition walls, we recommend at least 7 days of curing before framing. We'll specify the cure window for your specific project.

Will my slab crack?

All concrete cracks — that's why we install control joints at proper spacing and use a reinforced rebar grid that keeps cracks tight and structurally insignificant. A correctly poured, jointed, and reinforced slab will develop hairline cracks at the joints, which is normal and intended. Random uncontrolled cracking points to a poor base, insufficient reinforcement, or improper curing.