Commercial Concrete Slabs & Floors in Jacksonville, FL by Jacksonville Professional Concrete
Jacksonville Professional Concrete pours and repairs slabs for warehouses, retail buildings, offices, shops and light industrial space. Our commercial concrete slabs and floors in Jacksonville, FL are built around how the floor will actually be used: forklift traffic, racking loads, floor coverings, wash-down areas or simply a clean showroom finish.
A good floor starts below the concrete. Northeast Florida's fine sand compacts well when it is moisture-conditioned and rolled in lifts, but the seasonal water table sits close to the surface in much of Duval County. That makes compaction testing and vapor control part of every commercial slab we build.
We coordinate with your general contractor, engineer or facility manager, follow the drawings and keep the pour schedule tight so other trades can move in on time. On occupied buildings, we plan the work in phases so your operation keeps running while we pour, cure and fill joints.
Why Choose Jacksonville Professional Concrete
- Licensed & Insured
- Years of experience pouring residential and commercial concrete
- Proper reinforcement on every pour
- Written warranty on workmanship
- Local crew, local reputation
- On-time, on-budget completion
- Free, no-obligation estimates
- Wide range of finishes
- Proper site prep and drainage grading
- Clean job sites
Our Commercial Slab and Floor Services in Jacksonville
New commercial slab-on-grade
We install slab-on-grade floors for new buildings and additions, typically 5 to 8 inches thick depending on loads and the engineer's design. That includes subgrade proof-rolling, a stone or sand base where specified, vapor retarder, rebar or welded wire reinforcement, and dowels or edge forms at construction joints. We set screed rails or use laser screeding on larger pours so the floor comes out flat and level enough for racking, tile or polished finishes.
Tenant improvement and interior slab work
Office and retail build-outs in Baymeadows, Deerwood and the Southside often need trenching for new plumbing, slab infills, ramps or floor leveling under new finishes. We saw-cut cleanly, compact the trench, dowel new concrete into the existing slab and finish it flush. Moisture testing before flooring goes down helps avoid adhesive failures, which are common on slabs sitting over our damp sand.
Warehouse and distribution floors
Distribution space along the I-295 and I-10 corridors on the Westside, and near JAXPORT on the Northside, lives or dies by its floor. Forklift wheels punish joints, so we plan joint layout around aisles and racking, use load-transfer dowels where traffic crosses construction joints and fill joints with semi-rigid epoxy instead of soft caulk. Thicker sections go under rack posts and dock approaches when the design calls for them.
Polished and sealed concrete floors
A polished slab is hard to beat for showrooms, breweries, gyms and warehouses that want a clean, low-maintenance surface. We grind through progressive diamond grits, apply a densifier and finish to the sheen you choose. For floors that see spills or wash-downs, we can apply penetrating or film-forming sealers instead. Both options cut dusting and make the floor easier to clean.
Exterior commercial slabs
Outdoor storage pads, covered patios, drive-through lanes and service yard slabs face full sun, heavy rain and constant heat cycling. We build them with proper slope to drains, typically at least 1/8 inch per foot, and use air-entrained or lower water-cement mixes where salt air from the beaches is a concern. A broom finish keeps them safe to walk on when wet.
Commercial slab repair and replacement
Cracked panels, spalled joints, settled sections and curled edges all slow down forklifts and wear out equipment. We repair what can be repaired with joint rebuilds and crack injection, and we remove and replace panels that have failed. Replacement sections get doweled into the surrounding slab so they share loads instead of rocking. We can phase work by zone to keep the rest of the building running.
How Our Commercial Slab Process Works
Plan and prep the subgrade
We review the drawings, soils report and floor specs, then strip organics, proof-roll the sand and compact it in lifts to the required density. If the water table is high, we discuss raising grade or adding a drainage layer. Testing confirms compaction before forms go up.
Form, reinforce and set vapor control
Forms are set to grade, and the vapor retarder is lapped and taped with penetrations sealed. Rebar or wire is placed on chairs so it stays in the middle of the slab during the pour. We set dowels, embeds and blockouts, then walk the layout with you before the trucks arrive.
Pour and finish
In summer we start early, often before sunrise, to beat Jacksonville's heat, which averages above 90 degrees in July. We place, screed and power-trowel to the specified flatness, using evaporation retarder when humidity drops and wind picks up. Control joints are saw-cut within hours, usually spaced 2 to 3 times the slab thickness in feet.
Cure, protect and hand over
The slab is kept moist or covered with curing compound or curing blankets so it does not dry too fast in the heat. We protect it from traffic until it reaches strength, typically 7 days for light loads and 28 days for full design strength. Joints are filled and the floor is cleaned for the next trade.
Frequently Asked Questions
How much does a commercial concrete slab cost in Jacksonville?
Standard slab work runs about $8–$13 per square foot installed. Commercial floors often land at or above the top of that range because of thicker sections, heavier reinforcement, vapor barriers, laser screeding and joint fill. Polished finishes add grinding and densifier costs. We price each project from the drawings and site visit, with line items so you can see where the money goes.
How thick should a warehouse slab be?
Light commercial floors are often 5 to 6 inches. Warehouses with forklifts and storage racking usually need 6 to 8 inches or more, with thickened sections at rack posts. The right thickness depends on wheel loads, rack loads and subgrade strength, so we build to the engineer's design and will flag anything in the specs that looks light for the intended use.
Do I need a vapor barrier under a commercial slab here?
In most cases, yes. Jacksonville's seasonal water table can sit 18 to 42 inches below the surface on common local soils, and moisture moving up through a slab can ruin flooring adhesives, coatings and stored goods. A properly lapped and sealed vapor retarder is cheap insurance compared with tearing up failed flooring later.
How does the summer heat affect a commercial pour?
Heat speeds up setting and pulls water from the surface, which can cause plastic shrinkage cracks and weak finishes. We schedule early-morning pours, use set-retarding admixtures when needed, apply evaporation retarder and start curing as soon as finishing ends. Afternoon thunderstorms are also common, so we watch radar and keep covers on site.
Do commercial slabs need a permit in Jacksonville?
Most new commercial slabs are part of a permitted building project through the City's Building Inspection Division, and inspections are scheduled before the pour. Interior repair or replacement may or may not need a permit depending on scope. Projects in the Beaches cities or in St. Johns, Clay or Nassau County follow those jurisdictions' rules. We confirm requirements before scheduling.
Can you work around our business hours?
Yes. We can phase slab repairs by area, pour on nights or weekends when practical and use faster-setting mixes for repairs that must return to service quickly. We plan the sequence with your facility team so loading, aisles and exits stay open. For a site visit and estimate, call (904) 946-5411.