Concrete Patios in Harvey, LA

What Does a Concrete Patio Cost in Harvey?

A concrete patio in Harvey runs $9 to $16 per square foot in 2026, installed. A typical 600 sq ft backyard patio lands between $5,400 and $9,600. A smaller 300 sq ft slab runs $2,700 to $4,800. Four factors move the number on a Harvey job specifically.

• Subgrade depth: if excavation uncovers soft fill or organic material below grade, the crew removes it and replaces it with compacted limestone. That can add $800 to $1,500 to a mid-size job.
• Reinforcement: a slab on Harvey's variable fill warrants full rebar rather than wire mesh. Rebar adds roughly $1.50 to $2.00 per square foot over mesh.
• Drainage work: yards that slope toward the house need a channel drain or grade correction before the pour, which adds $400 to $900 depending on run length.
• Finish and sealer: a broom finish with a penetrating sealer is standard. Exposed aggregate or stamped finishes add $3 to $6 per square foot over a broom finish.

What Does Harvey Ground Actually Demand for a Concrete Patio?

Harvey's alluvial clay over former backswamp fill compresses at different rates across the same yard, which is the single biggest cause of patio cracking in this area. Where old fill meets native clay, differential settlement pulls slabs apart at the joint. Addressing that starts below the concrete, not above it.

Subgrade preparation on a Harvey patio runs deeper than a standard residential slab. The crew excavates to 8 to 10 inches below finished grade, removes any soft or organic material, and brings in compacted limestone base to a minimum 6-inch depth. Compaction is tested with a plate compactor pass count before the pour. No base is placed on organic fill or saturated clay without first improving that layer.

The slab specification for a Harvey patio is 4 inches of 3,500 PSI concrete over a 6-mil polyethylene vapor barrier. Reinforcement is #3 rebar on 18-inch centres across the full field. Rebar chairs hold the steel at mid-depth in the slab, not resting on the base. Expansion joints are formed or saw-cut every 8 to 10 feet within 12 hours of the pour, with control joints running to 1/4 the slab depth.

Drainage slope is set at a minimum 1/8 inch per foot away from the house. Harvey backyards are often flat or back-sloped toward structures, so establishing positive drainage is part of the layout, not an afterthought. Pergola footings poured as part of a patio job go to 24 inches below grade here to get below the unstable fill layer.

How Does the Job Run in Harvey?

A 600 sq ft Harvey patio typically runs 3 to 4 days from excavation to final sealer application. The schedule below reflects what the local ground adds to a standard patio job.

1. Day 1: excavate to 10 inches below finish grade, haul off spoil, inspect subgrade for soft spots.
2. Day 1 to Day 2: place and compact 6 inches of limestone base in two lifts, confirm grade and drainage slope.
3. Day 2 to Day 3: set forms, lay poly barrier, place rebar, pour 3,500 PSI mix, broom finish, cut control joints within 12 hours.
4. Day 4 or Day 5: apply penetrating sealer after a minimum 48-hour cure. Foot traffic holds at 24 to 48 hours. Vehicle access or furniture load waits 7 days.

Dewatering is occasionally needed on Harvey lots where the excavation base holds standing water. A submersible pump runs during the base-compaction phase. That adds half a day but is not uncommon on low-lying lots.

A Recent Patio Project in Harvey

Backyard patio, Harvey (West Bank area)

560 sq ft slab behind a 1970s house where the original yard sloped toward the back door and collected standing water after rain. Excavated 10 inches, removed 3 inches of deteriorated shell fill, replaced with 7 inches of compacted limestone tested in two lifts. Poured 4 inches of 3,500 PSI mix over 6-mil poly with #3 rebar on 18-inch centres. Broom finish, expansion joints at 8-foot intervals, sealed on day 4. A 4-inch channel drain was set at the low end and tied to the existing yard drainage. Four days total.

Questions Harvey Homeowners Ask About Concrete Patios

Do I Need a Permit for a Concrete Patio in Harvey?

Permit requirements depend on the patio's size and whether it is attached to a structure. Jefferson Parish Department of Inspection and Code Enforcement determines what triggers a permit in this parish. Contact that office directly before work starts to confirm the threshold for your specific lot and project scope.

Can a Concrete Patio Be Poured Over the Existing Slab?

Pouring over an existing slab in Harvey is not reliable when the existing slab has already settled. A settled slab indicates the subgrade beneath it has moved, and topping it traps the problem. The settled slab is removed, the subgrade is corrected, and a new 4-inch slab is poured. Bonding a new layer to a compromised base extends the failure, not the life of the patio.

How Long Before We Can Use the Patio?

Foot traffic on a new Harvey patio is safe at 24 to 48 hours. Furniture and light outdoor loads wait 7 days. Full concrete cure, meaning the point at which the slab reaches its rated strength, takes 28 days. Avoid dragging heavy furniture across the surface in that first month, as surface abrasion resistance builds through the cure period.

To get a firm estimate on a Harvey concrete patio, contact New Orleans Concrete Contractors for a free on-site assessment. We measure the yard, check the grade, and provide a written scope before any work is scheduled.