Complete concrete cancer removal, rebar passivation, and structural patch rebuilds. Stop progressive structural corrosion before safety hazards spread. Upload a photo for an immediate assessment by Hawaii-licensed concrete specialists.
HI DCCA C-31 Active License Verified #CT-38914 (HRS § 444) • Fully compliant with Hawaii Revised Statutes Chapter 444.
OSHA overhead protection standards • Licensed Structural Engineer (S.E.) stamped plans & inspections.
Primary Oahu Dispatch Corridors: Downtown Honolulu • Ala Moana • Kakaako • Windward & West Oahu
Tap the photo matching your property to upload an image for an immediate structural repair estimate. Compliant with City & County Honolulu, Maui, Kauai, and Hawaii County building inspection codes.

Rebar Rust & Falling Chunks
Flaking exterior stucco, expanding rusted steel rebar, and loose concrete chunks falling from overhead structures.

Bowing, Leaning & Mortar Cracks
Excessive hydrostatic soil pressure, failing weep holes, and stair-step mortar fractures on hillside block walls.

Slab Settlement & Fractures
Volcanic soil shifting, perimeter slab heaving, subterranean moisture seepage, and diagonal door header cracks.
Whether it's a driveway crack, pool deck settlement, or an unidentifiable masonry fracture, upload any concrete photo and a licensed Hawaii C-31 structural estimator will inspect it for free.
Transparent pricing ranges for Kaanapali properties. Costs depend on rebar oxidation depth, structural access (swing-stage vs ground), and Hawaii Department of Planning and Permitting (DPP) requirements.
Concrete spalling in Hawaii (locally called 'concrete cancer') typically costs $75 to $250 per square foot, or $1,500 to $6,500 for localized lanai balcony patches, reaching $15,000+ for multi-story overhead structural restorations. Permanent remediation requires mechanically exposing rusted rebar, zinc-passivating the steel, and rebuilding with structural polymer mortar under Hawaii C-31 licensing.
Rust bleed staining, bubbling exterior paint, hairline surface spalls under 6 inches
Detached concrete chunks, exposed oxidized rebar, localized lanai edge delamination
Overhead falling debris risk, structural beam spall, post-tensioned cable corrosion
Concrete spalling (known locally as 'concrete cancer') is the #1 threat to Hawaiian properties. Airborne salt molecules migrate into the concrete matrix, attacking the internal steel rebar. As the rebar rusts, it expands up to 6 times its original volume, blowing chunks of concrete right off the structure.
Falling concrete debris presents an immediate safety hazard and liability for homeowners and HOA boards. Delaying structural intervention allows moisture to travel deeper along the reinforcement grid, turning a $1,500 repair into a $25,000+ structural overhaul.
Hawaiian trade winds deposit concentrated airborne chlorides into porous concrete capillaries, breaking down the alkaline protective passivating layer around embedded steel.
As the steel oxidizes in high tropical humidity, rust creates up to 9,000 PSI of outward radial pressure, shattering the concrete from the inside out.
Our C-31 structural partners saw-cut damaged concrete, mechanically clean and zinc-passivate rebar, and rebuild with polymer-modified structural mortar.
Our licensed C-31 contractor partners follow strict ICRI (International Concrete Repair Institute) and Hawaii DCCA structural engineering protocols to guarantee permanent structural integrity.
Mapping invisible internal delamination pockets beneath sound-looking paint using acoustic chain drags and sounding hammers.
Saw-cutting rectangular perimeters and chipping concrete to achieve minimum 3/4-inch clearance completely behind oxidized rebar.
Mechanically blasting rebar to clean steel and applying high-purity zinc cathodic primer to eliminate electrochemical rust cells.
Hand-troweling low-permeability, silica fume-modified structural repair mortar engineered for vertical and overhead applications.
Applying a breathable, 100% acrylic elastomeric waterproofing membrane to permanently seal out oceanic trade wind chlorides.
Same-day photo assessment by licensed C-31 structural estimators across Maui.
If you notice any of these structural symptoms, an immediate photo assessment can prevent further degradation:
Take a quick smartphone picture of the cracked or spalling area. Our structural engineering estimators will review it today.
Everything you need to know about structural remediation in Hawaii.
Authentic structural remediation case histories from property owners across Kailua, Waikiki, Manoa, and Maui. All projects performed by licensed Hawaii C-31 contractor partners.
“Our Lanikai carport had severe rebar rust popping off chunks of concrete from trade wind salt exposure. The C-31 contractor team saw-cut clean margins, sandblasted the rebar, and installed galvanic zinc anodes. Passed all inspections cleanly and the structural patch blends seamlessly.”
“As an AOAO board member in Waikiki, falling concrete debris liability was our highest priority under HRS § 514B. Hawaii Concrete Repair dispatched structural estimators who coordinated swing-stage scaffolding and completed phased lanai restoration for 24 units on schedule.”
“Our 9-foot hillside CMU wall was developing stair-step shear fractures due to heavy valley rainfall and soil moisture. The engineering team cored clean relief weep holes, pressure-grouted the hollow cells, and installed carbon-fiber helical tiebacks. Outstanding craftsmanship.”
“Our commercial distribution warehouse in Kahului experienced ground settlement along the main bay slab. The team mobilized quickly to Maui, performed high-pressure structural epoxy crack injection, and leveled the foundation with minimal downtime to our operations.”
Upload a photo for a 15-minute engineering evaluation by Hawaii-licensed C-31 structural contractors.