Concrete Repair & Restoration in Qatar, UAE & Saudi Arabia
Compass Waterproofing provides reliable concrete repair restoration service across Qatar, UAE, and Saudi Arabia for residential, commercial, industrial, and infrastructure projects.
Our repair systems are designed to restore structural strength, repair damaged concrete, protect reinforcement steel, and extend the life of buildings exposed to harsh GCC climate conditions.
CONCRETE REPAIR
Condition Assessment First
Every project starts with a structural condition assessment per ACI 364.1R. We map visible damage, identify hollow areas with hammer survey, measure carbonation depth where appropriate, test chloride content of the cover concrete in critical locations (per ASTM C1152), and assess the extent of rebar corrosion. The assessment determines the scope of the repair — not the other way around.
Cut Back to Sound Concrete
All damaged, contaminated, and chloride-laden concrete is removed back to clean, sound substrate. Removal continues until exposed concrete is fully bonded, uncontaminated, and free of visible damage. Cutting back further than visible damage is essential — chloride contamination extends beyond visible spalling, and we have seen jobs where the contractor stopped at visible damage and the repair failed within 24 months because contaminated concrete was left in place.
Reinforcement Treatment
Exposed rebar is cleaned to a bright steel finish per SSPC-SP3 by mechanical or abrasive blasting. We then apply a corrosion-inhibiting primer that passivates the steel and protects against future ingress. Where rebar section loss exceeds limits (typically 15% per ACI 318), supplemental reinforcement is specified and installed before reinstatement.
Reinstatement with Polymer-Modified Mortar
We reinstate removed concrete with polymer-modified repair mortars selected for compatibility with the parent substrate, meeting EN 1504-3 Class R3 or R4 depending on application. These mortars have low shrinkage, high bond strength (>2.0 N/mm² typical), and chloride-resistant performance — they restore the protective cover that prevents future corrosion.
Protective Coating Application
The repaired structure is finished with a protective coating system to prevent future chloride and moisture ingress — anti-carbonation coating to EN 1504-2 Class C, anticorrosion topcoat, or hydrophobic impregnation depending on exposure. The protective coating is what prevents the next corrosion cycle from starting.
WHERE WE WORK ON CONCRETE REPAIR
- Coastal towers in Jeddah, Dubai Marina, Doha Corniche
- Car park decks with chloride-induced rebar corrosion
- Marine and offshore structures
- Bridge piers, decks, and abutments
- Industrial facilities with chemical exposure
- Water treatment plants and reservoirs
- Balconies and external facades with spalling concrete
- Underground basements and lift pits
- Historic and heritage structures requiring sympathetic repair
- Infrastructure — tunnels, retaining walls, metro structure
Our Services
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CONCRETE REPAIR
01 - Structural Assessment
Site visit, hammer survey to identify hollow areas, visual mapping of cracks and spalls, optional chloride and carbonation testing (per ASTM C1152 and EN 14630 respectively), and overall condition report. Existing condition documented with photos and a deterioration map.
02 - Specification & Method Statement
Based on the assessment, we specify the repair system — cut-back depth, reinforcement treatment, repair mortar product (EN 1504-3 class), and protective coating. Method statement formatted for consultant review and authority submission.
03 - Concrete Removal
Damaged and contaminated concrete removed by mechanical means — hand tools, saw cutting, and high-pressure water jetting depending on scale. Removal continues until clean sound concrete is exposed throughout the affected area.
04 - Reinforcement Treatment
Exposed rebar cleaned to SSPC-SP3 bright metal finish, supplemental reinforcement installed where section loss exceeds limits, and corrosion-inhibiting primer applied. Rebar condition documented with photos before reinstatement.
05 - Reinstatement
Polymer-modified repair mortar applied to specified thickness in single or multiple lifts depending in depth. Surface profile and finish matched to surrounding parent concrete. Curing per product specification — usually 7 days for full strength development.
06 - Protective Coating & Handover
Anti-carbonation or anticorrosion protective coating applied over the repaired area and surrounding sound concrete. Full handover including before/after photos, product data sheets, application records, and warranty papers.
Common Questions About Concrete Repair Restoration Service in GCC
How can I tell if my building needs concrete repair?
The most obvious signs are rust stains on concrete surfaces, cracks that are getting wider, spalling that can be seen where concrete cover has fallen away exposing the rebar, and hollow-sounding areas when you tap the concrete. In coastal GCC buildings such signs typically appear 10 to 20 years after construction depending on the cover depth, concrete quality and exposure. If you notice any of these signs, assessment is the appropriate next step before it gets worse. Earlier intervention is dramatically cheaper than later – we have done full facade restorations that would have been minor repairs if the building owner had called us five years earlier.
Can concrete repair really stop further deterioration?
Yes, if done right. Proper concrete repair involves removal of all chloride contaminated material, treatment of exposed steel, replacement of the protective cover with chloride resistant mortar and the application of a protective coating to prevent re-ingress. This stops the corrosion mechanism and adds another 15 to 20 years of life to the structure. Repairs are usually cosmetic patches, which do not resolve the underlying corrosion, and generally fail again within 2-5 years. Severe cases may also be treated with cathodic protection, and we advise on this where appropriate.
How long does it take to fix concrete?
Depends on the scale. A typical residential tower balcony or façade repair usually takes 1-3 weeks per zone. Big infrastructure jobs, bridges, car park decks, water treatment plants, take months. Each quote is supported by a full programme, with work phased on occupied buildings to minimise disruption.
Is concrete repair possible with the building occupied?
Yes, for the most part. We are isolating the work area, controlling dust and debris, and scheduling noisy operations to coincide with building operating hours. We regularly do external facade and balcony repairs with the building in full service. Internal repairs in critical areas like hospitals, data centres and government facilities are phased and contained to keep operations going. Communicating with building management and tenants is equally as important as the technical work.
Do you provide structural certification on completed repairs?
Uh-huh. All concrete repair work is fully documented with condition assessment report, method statement, product data sheets, application records, photographic before/after evidence and warranty papers. For structural repairs that require engineer sign-off we work with the client’s appointed structural consultant and provide the records they require for certification. We don’t do the structural certification ourselves, that’s the structural engineer’s job, but we give them everything they need to do it.