CMU block stabilization, drainage correction, helical tiebacks, and structural reinforcement. 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 Upcountry / Pukalani properties. Costs depend on rebar oxidation depth, structural access (swing-stage vs ground), and Hawaii Department of Planning and Permitting (DPP) requirements.
Retaining wall repair in Hawaii ranges from $800 for drainage core-drilling and crack stitching to $3,500–$9,500 for helical tieback stabilization, and $15,000+ for major CMU rebuilds. Soil hydrostatic pressure from torrential Hawaii rainfall is the primary cause of bowing and failure, requiring licensed C-31 engineered stabilization.
Clogged weep holes, efflorescence staining, hairline mortar joint weeping
Wall leaning up to 2 inches, horizontal shear cracks across CMU block joints
Wall leaning > 2.5 inches, active blowouts, upper terrace soil sinkhole collapse
Hawaii's steep hillside terrain and intense torrential rain events generate massive hydrostatic pressure behind retaining walls. Clogged weep holes and inadequate drainage cause CMU walls to lean, bow, crack, and eventually collapse.
A failing retaining wall threatens uphill foundations, downslope structures, and property boundaries. 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.
Measuring wall lean angles, terrace soil surcharge, and lateral movement with digital rotary laser levels.
Core-drilling 3-inch relief ports through CMU blocks with geotextile filtration sleeves to vent trapped water.
Hydraulically advancing high-tensile steel helical screw anchors through the wall into solid uphill volcanic bedrock.
Epoxy-bonding high-tensile carbon fiber composite straps across mortar joint shear planes to prevent further bowing.
Pumping structural polymer grout into hollow CMU cells and applying commercial-grade waterproof sealant to the rear face.
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.