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Built to your engineered drawings, survey, and the real site conditions, not a one-size-fits-all approach forced to fit.
Commercial and heavy-civil construction in Ottawa
Concrete Repair Contractor Ottawa
A Concrete Repair Contractor delivers complete concrete repair and restoration, from crack injection and spall repair to structural strengthening, across commercial and institutional structures.
- Licensed, Insured & WSIB-Covered
- 20 Years in Business
Get a Quote in Ottawa
Tell us what you need and we’ll get you a quote. Licensed, insured & WSIB-covered · Free, no-obligation quote & on-site assessment.
Get a Quote
Licensed, insured & WSIB-covered · Free, no-obligation quote & on-site assessment.
20 Years in Business
Licensed, Insured & WSIB-Covered Completed to code & Ontario requirements Completed on site and built to the drawings Performed & installed on site across Ontario
Why Harrowgate Group
What to expect from concrete repair contractor in Ottawa
Made to last
Durable materials and methods chosen for the load, traffic, and environment on site.
Quote-ready
Send specs, drawings, or photos and get a free, no-obligation site visit and estimate with no guesswork.
Code-conscious
Installation and site work completed in accordance with Ontario requirements.
Our Process
How the commercial concrete repair process works
Local Context
Concrete Repair Contractor in Ottawa
Scope
Understanding concrete repair contractor
Which concrete repair method matches the deterioration?
Repair selection follows diagnosis of delamination, cracking, corrosion, impact, chemical attack, movement, leakage, and support. Hand patches suit localized vertical or horizontal loss, formed repair rebuilds deeper sections, shotcrete covers larger vertical and overhead areas, injection treats selected cracks, and full replacement is used when the remaining section or support is unreliable.
Partial-depth patching. Unsound concrete is removed to sound boundaries, reinforcement is treated as designed, and compatible repair mortar is placed within its thickness range. Feather edges and contaminated substrate are not accepted.
Full-depth and formed repair. Slabs, beams, columns, walls, and edges can require shoring, load removal, complete bar access, supplemental reinforcing, formwork, and concrete or flowable repair material.
Shotcrete and overhead repair. Wet or dry process placement is effective where access supports correct nozzle angle, layer thickness, encapsulation, rebound control, finish, and curing. Qualification and trial panels follow the specification.
Crack, joint, and protective work. Epoxy, polyurethane, routing, sealants, membranes, coatings, galvanic systems, and corrosion inhibitors address different mechanisms. They follow structural repairs and drainage correction rather than hiding continuing deterioration.
How We Deliver Concrete Repair Contractor
Step 1, investigate and map repair limits. Harrowgate checks sounding, cracking, leakage, chloride or carbonation data, cores, cover, load, drainage, and previous repairs with the consultant as required.
Step 2, isolate loads and remove unsound concrete. Shoring, traffic, services, debris, silica, slurry, and falling-material controls are established. Sawcuts and low-impact tools protect retained edges.
Step 3, prepare reinforcement and substrate. Bars are exposed, cleaned, measured, supplemented, or replaced as directed. Concrete is roughened, cleaned, and conditioned for the chosen repair material.
Step 4, place and cure within material limits. Mortar, concrete, grout, shotcrete, resin, or sealant is installed at the required temperature, thickness, consolidation, and finish. Curing and protection begin promptly.
Step 5, verify and complete protection. Sounding, bond, cores, thickness, leakage, or visual acceptance follows the specification. Joints, coatings, membranes, and drainage are completed after repair acceptance.
Harrowgate repairs concrete from sound edge to sound edge. Work proceeds through access and shoring, survey and sounding, perimeter sawcutting, controlled removal, reinforcement assessment, substrate preparation, repair placement, curing, and reinstatement of joints, membranes, coatings, drains, or traffic surfaces.
We begin with drawings, condition surveys, testing, leak and drainage history, exposure, previous repairs, and operational constraints. Repair limits are confirmed by visual review, sounding, survey, and consultant-directed investigation. Loads and access are controlled, and shoring is installed before removal where the engineer requires it. Harrowgate sawcuts repair perimeters to avoid feather edges, removes concrete with methods that limit damage to retained substrate, and exposes reinforcing to the specified clearance.
Corrosion, section loss, cracks, delamination, and concealed conditions are documented. Reinforcing is cleaned, supplemented, or replaced to the design, and the substrate is prepared to the repair material requirements. We install formed-and-poured, hand-applied, pumped, injected, or sprayed systems as specified, consolidate and finish them, then cure and protect the repair. Joints, coatings, drains, sealants, traffic surfaces, and waterproofing are reinstated in sequence.
Removal energy is reduced as work approaches retained reinforcing, post-tensioning zones, embedded services, or thin sections. The exposed cavity is reviewed before materials arrive. Geometry, depth, steel clearance, active water, temperature, and placement orientation are matched to the repair system so crews do not force a product into conditions outside its limits.
Have drawings for concrete repair contractor in Ottawa? Send them over and we will scope it.
FAQ
Concrete Repair Contractor FAQ
How do you determine the limits of a concrete repair?
Repair limits are established through drawings, visual review, sounding, survey, testing, and consultant direction. Harrowgate marks delaminated and unsound areas, sawcuts a defined perimeter, and continues removal to sound concrete. Newly exposed corrosion, cracks, voids, or section loss are documented and reviewed before the repair is rebuilt.
Why does repaired concrete sometimes delaminate again?
Repeat delamination follows incomplete removal, contaminated or weak substrate, partly exposed corroding steel, poor bond preparation, incompatible material, shrinkage, water entry, salt exposure, or inadequate cure. Harrowgate addresses the governing cause, prepares to the repair specification, controls mixing and placement, and restores joints, drainage, coatings, and protection around the patch.
Can concrete repairs be phased around facility operations?
Yes. Harrowgate divides work into safe zones, maintains agreed access and loading limits, coordinates noise, dust, water, shutdowns, shoring, cure, and reopening, and completes each repair through protection before advancing. Phasing is built from structural restrictions and material return-to-service criteria, not only from the facility’s preferred traffic pattern.
When is crack injection used?
Injection is used where the engineer and material design identify a suitable crack condition and objective, such as structural bonding with resin or water control with flexible grout. Harrowgate confirms crack activity, moisture, width, access, pressure limits, and termination before injection. Moving joints and unidentified water paths require a different detail.
How is reinforcing steel handled during repair?
Harrowgate exposes reinforcing to the required clearance, removes corrosion products without damaging the bar, records section loss, and installs supplemental or replacement steel only to the engineer’s detail. Bars are not cut for removal access without authorization. The repair material is then consolidated around the steel with the specified cover.
What controls return to service after a repair?
Return to service depends on material strength gain, cure, temperature, repair geometry, coating or membrane completion, loading, and engineer or manufacturer criteria. Harrowgate protects the work and releases the area only after the stated acceptance condition is met. Fast set does not remove the need for correct preparation and cure.
What documentation accompanies concrete repairs?
Documentation includes repair maps, preconstruction conditions, removal limits, reinforcing observations, consultant instructions, product and batch records, mixing and temperature logs, test results, cure records, photographs, quantities, and deficiency closeout. This gives owners a location-based history for future condition checks and maintenance planning.
Why do concrete repairs fail around the patch perimeter?
The new patch can shift corrosion activity to adjacent chloride-contaminated concrete, shrink against weak edges, trap moisture, or concentrate movement. Sound removal limits, reinforcement assessment, compatible material, curing, joint treatment, drainage, and corrosion strategy reduce perimeter failure.
When is concrete replacement better than repair mortar?
Replacement is considered when deterioration extends through the section, support has failed, reinforcement needs broad access, geometry is wrong, movement continues, or the remaining concrete cannot provide a reliable bond. The structural and operational consequences determine the boundary.
Still have a question about concrete repair contractor in Ottawa? Ask our team directly.
Explore
Related Harrowgate Services
Concrete Crack Repair And Injection, Crack repair and injection for selected crack conditions
Parking Structure Repair, Parking structure concrete and protection work
Structural Strengthening, Structural strengthening when capacity must be increased
Surface Preparation And Grinding, Surface preparation before repair and coatings
Waterproofing Contractor, Waterproofing at repaired concrete interfaces
More in Ottawa
Everything we handle in Ottawa
Browse 24 services in Ottawa
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- Asphalt Repair and Patching
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- Cast-in-Place Concrete and Formwork
- Catch Basin Repair and Replacement
- Commercial Concrete Contractor
- Commercial Concrete Patios and Landings
- Commercial Concrete Slabs
- Concrete and Asphalt Crushing and Recycling
- Concrete and Asphalt Removal
- Concrete Barriers and Bollards
- Concrete Columns and Beams
- Concrete Containment Structures
- Concrete Crack Repair and Injection
- Concrete Curbs and Gutters
- Concrete Cutting and Coring
- Concrete Finishing
- Concrete Foundations
- Concrete Pads
- Concrete Parking Lots
- Concrete Pumping and Placing
- Concrete Repair and Restoration
- Concrete Replacement
- Concrete Sealing and Densifying
Our Work
View Our Projects See real projects across Toronto & Ontario
Commercial and heavy-civil construction delivered for developers, contractors, property managers, and municipalities.
Get a quote for concrete repair contractor in Ottawa
Send drawings, a site plan, or a description of the scope. Harrowgate Group is licensed, insured, and WSIB-covered.
Licensed, Insured & WSIB-Covered, work managed and documented on every job
Send your project details
Tell us what you need and we’ll get you a quote. Licensed, insured & WSIB-covered · Free, no-obligation quote & on-site assessment.
Concrete Repair Contractor Near Ottawa
View all service areas →Harrowgate Group provides concrete repair contractor, delivered and installed with quote-ready support across Toronto and surrounding Ontario communities.
