Concrete Contractors in Mandeville, LA
New Orleans Concrete Contractors pours driveways, patios, slabs and commercial flatwork throughout Mandeville and St. Tammany Parish. Every job here is detailed for sandy pine-flat soil, where edge erosion and washout during heavy rain are the real failure risk. We pull the correct permits through St. Tammany Parish Department of Permits before any pour.
Key facts
- Water table in Mandeville sits 5 to 12 feet below grade, far deeper than south-shore sites.
- Sandy pine-flat soil drains well but erodes under slab edges during rain events exceeding 2 inches per hour.
- Residential driveways in Mandeville run $8 to $13 per square foot in 2026, depending on subgrade work and finish.
- Control joints are cut every 10 feet within 12 hours of the pour on all flatwork.
- Vehicle traffic is permitted after 7 days; full cure reaches 28 days.
What concrete services are available in Mandeville?
Mandeville residential and commercial properties have access to the full service range: driveway replacement and new pours, patio and pool deck flatwork, garage slabs, walkways, curbing, and commercial parking lots. Each job starts with a site read specific to the lot's drainage pattern and existing subgrade condition.
What do Mandeville ground conditions mean for concrete work?
Sandy pine-flat soil gives Mandeville a water table 5 to 12 feet below grade, which removes settlement as the dominant risk but creates a different problem: rain events strip fines from beneath slab edges and leave voids that cause cracking and edge drop.
Why does sandy soil cause erosion under slabs?
Sandy soil passes water quickly. When a 2-inch-per-hour rain event hits a slab without proper edge containment, water sheeting off the surface accelerates along the slab perimeter, pulls fine particles out from beneath the edge, and leaves a hollow band 2 to 4 inches wide under the concrete. The slab then bears load on a cantilevered edge rather than a full base, and cracking follows at 12 to 24 months.
The correct response is compacted gravel base extended 6 inches beyond the slab edge, a positive 1.5 percent cross-slope to a defined outlet, and a formed edge beam or thickened edge poured integral with the slab. On sloped lots, a channel drain across the driveway apron intercepts runoff before the water reaches the perimeter.
What subgrade and slab spec is right for Mandeville flatwork?
A residential driveway in Mandeville gets 4 inches of compacted crushed limestone base, graded to drain, with 6-mil poly sheeting before the pour. The slab is 4 inches of 3500 PSI concrete with 3/8-inch rebar on 18-inch centres, thickened to 6 inches at the apron and at any free edge adjacent to a planted border. Commercial slabs carrying truck traffic step up to 6 inches of 4000 PSI with No. 4 rebar on 12-inch centres. Because the sandy subgrade is stable when dry, the priority in prep is shaping the base for drainage, not deep compaction correction.
What does concrete work cost in Mandeville in 2026?
Driveway replacement in Mandeville runs $8 to $13 per square foot in 2026, with a typical 600 square foot two-car driveway falling between $4,800 and $7,800. Patio flatwork ranges from $7 to $11 per square foot. A detached garage slab runs $6 to $10 per square foot depending on thickness and rebar schedule.
| Job type | Typical size | 2026 range |
|---|---|---|
| Driveway replacement | 500 to 700 sq ft | $4,000 to $9,100 |
| Patio slab | 300 to 500 sq ft | $2,100 to $5,500 |
| Garage slab | 400 to 600 sq ft | $2,400 to $6,000 |
| Commercial parking (per sq ft) | Varies | $9 to $15 |
Three factors move the number on any Mandeville job: the extent of drainage detailing required at the perimeter, whether an existing slab needs demolition and haul-off, and the finish type. Broom finish is the base price. Exposed aggregate and stamped finishes add $2 to $5 per square foot.
What permits and approvals are required in St. Tammany Parish?
Flatwork permit requirements in St. Tammany Parish are set by the St. Tammany Parish Department of Permits, and whether a specific project requires a permit depends on the scope of work. Projects that tend to trigger review include new impervious surface that alters drainage flow, work within the public right-of-way, construction that changes the grade or redirects stormwater, and any work in a mapped flood zone.
We do not state specific thresholds, fees or setback figures here because those values change and must be confirmed against the parish's current published rules. Confirm the requirements for your specific project with St. Tammany Parish Department of Permits before work begins.
Recent concrete projects in Mandeville
Driveway replacement, north Mandeville
Job: driveway replacement, 580 square feet. The existing slab had a 3-inch edge drop on the right side where repeated rain events had washed fines from beneath a raised planting border with no edge containment. Demolished to subgrade, reshaped base with 5 inches of compacted limestone graded at 2 percent to a new channel drain at the apron. Poured 4 inches of 3500 PSI with 3/8-inch rebar on 18-inch centres, thickened to 6 inches at both free edges. Broom finish. Four days total including demolition and cure to foot traffic.
Rear patio slab, Mandeville lakefront area
Job: new patio slab, 420 square feet. Sandy subgrade was dry and stable but had no fall toward the yard, which would have pooled water against the house foundation. Excavated 6 inches, placed 4 inches of compacted gravel base sloped 1.5 percent away from the structure, poured 4 inches of 3500 PSI concrete with 6-mil poly and wire mesh at mid-depth. Installed a 4-inch wide linear drain along the house edge to capture any surface water before the foundation. Salt finish. Three days.
How do you get a concrete estimate in Mandeville?
A free on-site estimate takes 30 to 45 minutes. We walk the area, read the drainage pattern, check the existing subgrade condition where accessible, and confirm the scope of work. You receive a written itemised quote within 24 hours of the visit. Call or use the contact form to schedule.
Common questions
- How long does a concrete driveway last in Mandeville?
- A properly detailed driveway in Mandeville lasts 25 to 40 years. Sandy soil is stable when dry, so longevity depends on edge protection and drainage. Slabs with thickened edges and a positive cross-slope to a defined outlet resist the erosion that causes premature edge cracking in this soil type.
- Do I need a permit for a driveway replacement in Mandeville?
- Permit requirements are set by St. Tammany Parish Department of Permits and depend on the specific scope. Projects that add impervious surface, alter drainage or touch the right-of-way typically trigger review. Confirm with St. Tammany Parish Department of Permits before work starts.
- Why do slab edges crack in Mandeville but not settle like south-shore slabs?
- South-shore slabs sit on soft clay over a high water table and settle as the clay consolidates. Mandeville sandy soil does not compress the same way. Instead, heavy rain strips fine particles from beneath slab edges, leaving voids that cause edge cracking at 12 to 24 months without proper base extension and drainage detailing.
- What concrete mix is used for driveways in Mandeville?
- Residential driveways get 3500 PSI concrete poured at 4 inches over 4 inches of compacted crushed limestone with 6-mil poly and 3/8-inch rebar on 18-inch centres. The slab thickens to 6 inches at the apron and any free edge. Commercial slabs step up to 4000 PSI at 6 inches.
- How much does a 600 square foot driveway cost in Mandeville in 2026?
- A 600 square foot driveway replacement in Mandeville runs $4,800 to $7,800 in 2026. The range moves based on demolition of the existing slab, the extent of drainage work at the perimeter, and the finish selected. Broom finish sits at the low end; stamped or exposed aggregate adds $2 to $5 per square foot.
Concrete services in Mandeville
Concrete Driveways in Mandeville
Concrete Patios in Mandeville
Stamped & Decorative Concrete in Mandeville
Concrete Slabs in Mandeville
Concrete Repair in Mandeville
Sidewalks & Walkways
Residential Concrete
Concrete Steps & Stoops
Residential Concrete
Concrete Resurfacing
Residential Concrete
Concrete Leveling & Lifting
Residential Concrete
Concrete Removal & Demolition
Residential Concrete
Pool Decks
Residential Concrete
Retaining Walls
Residential Concrete
Garage Floors
Residential Concrete
Commercial Concrete
Commercial Concrete
Parking Lots & Paving
Commercial Concrete
ADA Sidewalks & Curbs
Commercial Concrete
Foundations & Slab-on-Grade
Commercial Concrete
Industrial Concrete Flooring
Commercial Concrete
Drainage & Detention
Commercial Concrete
Last updated August 5, 2026
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