Spall Repair · Coastal Concrete
Concrete Spall Repair on Oahu
Concrete spall repair that exposes and treats the rebar, rebuilds the surface, then seals it with a coating designed for coastal exposure.
What we repair
Damage to finished surface
Damage
Corroded rebar exposed, cleaned, and rust-inhibitor-treated
Response
Sound the concrete for hollow areas, map spalling locations, quote the repair scope.
Damage
Concrete rebuilt with polymer-modified patch
Response
Chip out loose and hollow concrete to expose sound material and rebar.
Damage
Surface profile primed for coating
Response
Wire-brush rust off rebar and apply corrosion-inhibiting primer. Replace rebar sections where corrosion is severe.
Damage
Protective marine-grade coating on top
Response
Bonding agent + polymer-modified patch material built up in lifts. Screed and float to profile.
Damage
Documented photos through the repair
Response
Cure to spec. Grind or profile the surface for coating adhesion.
Finish choices
Materials and finish options
Patch & Seal
Small isolated spalls without full-surface deterioration.
- · Spot patch
- · Rebar treatment
- · Localized sealer
Full-Surface Repair & Coat
Lanais and balconies with widespread hairline and spot spalling.
- · Multi-point patching
- · Rebar treatment
- · Full-surface marine-grade coating
Waterproof Deck System over Repair
Elevated lanais over living space where waterproofing is critical.
- · Full spall repair
- · Waterproof deck membrane over repair
- · Slip-resistant top coat
Spall / Concrete Repair FAQ
Repair questions
Can I just patch the concrete without treating the rebar?+
Not for long. The rebar keeps expanding, and the new patch tends to fail. Treating the rebar is what gives the repair a durable base.
How do I know if my lanai has spalling?+
Look for rust-colored streaks, hollow-sounding spots, or flaking around edges and where columns meet the deck. On coastal Kaneohe, Kailua, and Hawaii Kai homes, it's extremely common.
Do I need to replace the whole lanai?+
Almost never. Even severe-looking spalling is usually surface-level and repairable. We'll walk it with you before recommending anything major.
“I told Kyle right up front that I'm very picky and detail-oriented. He said those are exactly the clients he loves. Meticulous prep, cleaned up daily, and walked the whole job with us. Highly recommend.”
Free estimate