Concrete Services
A solid slab is the foundation of any successful project. We pour level, reinforced concrete slabs across Oahu for home additions, ADUs, garages, carports, sheds, and outdoor living areas.
What's included
Slab work for accessory dwelling units and home additions, poured flat, square, and ready for the framing crew.
Vehicle-rated thickness and reinforcement, with aprons and approaches tied in cleanly.
Right-sized pads for storage sheds, workshops, and gym spaces, with anchor points where your build needs them.
Slabs planned around utilities, drainage, and the weight of masonry counters and built-in equipment.
Pads for AC units, water tanks, generators, and hot tubs, small pours done with the same prep as the big ones.
Steel placed correctly, thickness matched to the load, and joints cut so the slab stays tight for the long haul.
Our Process
We look at what the slab needs to carry, check access and grades, and give you a free, no-obligation estimate.
We cut to depth, establish grades, and deal with soft spots before they become slab problems.
Compacted base, a vapor barrier where the slab will be built over or enclosed, and steel reinforcement set on chairs, not stepped into the mud.
Poured and screeded to a flat, consistent elevation. If a wall plate or door threshold has to land right, it lands right.
Control joints cut on time, cure guidance in plain language, and a slab your builder will not have to fight.
Built for the island
Ground conditions swing widely across this island. Leeward valleys sit on rock, the Ewa plain is coral and sand, and windward lots hold more moisture. A slab that ignores what is underneath it will telegraph that mistake for decades, so we spend real effort on excavation, compaction, and base before any concrete shows up.
With more Oahu homeowners adding ADUs and covered outdoor space, we pour a lot of slabs that other trades build on. Flat, square, and correctly cured is the standard, because your framer, your plumber, and your building inspector all work off our surface.
Areas we serve →
FAQ
Four inches is standard for residential slabs like sheds, patios, and most floors. Garage slabs and pads carrying vehicles or heavy equipment typically run thicker with added reinforcement. We spec thickness to the actual load at the estimate.
Some slab projects on Oahu require a permit from the City and County of Honolulu, especially slabs for ADUs, additions, and enclosed structures. We will tell you honestly whether your project is one of them during the estimate.
Yes. ADU slabs are a growing part of our work as more Oahu homeowners add rental or family units. We pour to the plans, coordinate with your builder, and deliver a flat, square slab ready for framing.
If the slab will be enclosed or built over, yes, a vapor barrier keeps ground moisture from migrating up through the concrete. Open-air pads like AC or shed slabs often do not need one. We include it wherever the use calls for it.
Light layout work can often start within a few days, and most builders begin framing about a week after the pour. We coordinate timing with your contractor so the schedule keeps moving without stressing green concrete.
Yes, and most slab projects work exactly that way. We pour to the plans, hit the specified elevations for thresholds and plates, and sequence our schedule with the framing crew so the project never stalls waiting on concrete. Give us the builder's contact and we handle it.
Skipped compaction. A slab poured over soft or unverified ground settles and cracks no matter how good the concrete is, which is why our crews compact and check the base before every pour. The second culprit is missing control joints, and we cut ours on schedule.
Other services
Concrete Driveways · Concrete Patios · Custom & Decorative Concrete · Masonry & Concrete Services
Not sure what you need? Call us at 808-207-7363 and we'll point you the right way.
Free, no-obligation estimates across Oahu. Talk to a real concrete pro today.