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Expert concrete repair solutions in Christchurch

Repair, restore and protect concrete.

We're dedicated to restoring and enhancing the structural integrity of buildings and infrastructure across New Zealand. Utilising the latest in repair technologies and materials, we approach every project, regardless of scale, with a focus on durability, sustainability and client satisfaction.

Plain-English overview

Concrete crack repairs: more than just filling gaps.

Since its inception in 2004, The Connect Group's Concrete Repair Division has been at the forefront of delivering high-quality, innovative solutions for concrete repairs and maintenance, restoring and enhancing the structural integrity of buildings and infrastructure across New Zealand.

We've proudly delivered exceptional concrete repair solutions to the market since 2004. The Canterbury Earthquakes saw The Connect Group take on large-scale concrete repair projects across Canterbury and lead the industry in repair methods and standards. For over 20 years our division has offered a wide range of solutions, from seismic strengthening to grout and sealant applications, all underscoring our commitment to protecting and preserving your asset.

Our concrete repair services

Setting the industry standard for concrete repairs.

Panel Grouting & Sealant

Applying grout and sealant to concrete panels and drossbachs, ensuring stability, sealing joints, and preventing water ingress for durable results.

Crack Injection

Injecting specialised resins into cracks to seal and strengthen concrete, preventing further damage and restoring structural integrity.

Shotcrete

Spraying high-strength concrete onto surfaces for structural repairs, slope stabilisation, and forming complex shapes with superior adhesion.

Re-levelling, Void Filling & Consolidation

Re-levelling structures, filling voids, and consolidating ground to stabilise and support concrete foundations and slabs effectively.

Drilling & Anchoring

Drilling precise holes and installing anchors for structural support, ensuring secure and stable connections in concrete repairs.

Grinding & Polishing

Using advanced techniques to grind and polish concrete floors or walls, achieving a smooth, shiny finish that is both durable and aesthetic.

FRP Plate & Stitching

Installing Fibre Reinforced Polymer (FRP) plates and stitching to strengthen and repair concrete structures, enhancing load-bearing capacity.

Underpinning

Strengthening and stabilising foundations through underpinning techniques, reducing structural movement and addressing subsidence issues.

Waterstop & Curtain Wall Injection

Injecting water-reactive resins into joints and connections to stop leaks and water ingress, with curtain wall injection to reinstate tanking.

Why Connect

The Connect Group advantage.

Utilising the latest in repair technologies and materials, we approach every project, regardless of scale, with a focus on durability, sustainability and client satisfaction. Our comprehensive service offering, from seismic strengthening to grout and sealant applications, underscores our commitment to protecting and preserving your asset.

  • Comprehensive expertise: 20 years of experience, from residential repairs to large-scale commercial and infrastructure projects, with concrete repairs, seismic strengthening, fire protection and core drilling under one roof.
  • Innovative solutions: we utilise cutting-edge technology and materials, including Hilti advanced core-drilling and anchoring equipment, for durable, long-lasting repairs that enhance overall integrity and value.
  • Local knowledge, global standards: deep roots in Christchurch's post-earthquake landscape, combined with adherence to international best practices.
  • Collaborative approach: we work closely with clients to understand their needs and offer tailored, customer-centric solutions completed to the highest standards.
  • Safety-first: rigorous inspection processes, automated systems in high-risk operations, thorough staff training and strict adherence to the latest regulations.
96 Lichfield Street

Featured proof

96 Lichfield Street.

A category one heritage building, the challenge from the outset was to maintain the overall integrity of the historic façade, take care of the stone frontage, while giving the building strength and durability.

Location
Christchurch · Civic
Sector
Commercial
Services
Seismic · Concrete
Year
2020

Technical detail

Methods, process & compliance.

We work across the common concrete repair approaches, selected to suit the structure and the cause of the damage:
  • Break-out, reinforcement treatment and patch repair
  • Structural and non-structural crack injection
  • Spall repair and reinstatement of cover
  • Sprayed and hand-applied repair mortars
  • Anti-carbonation and protective coating systems
  • Cathodic and corrosion-mitigation measures
Correct diagnosis and careful preparation keep concrete repairs lasting:
  • Investigate and diagnose the cause of the deterioration
  • Select the right repair system and products for the conditions
  • Set-up, access, protection and substrate preparation
  • Staged repair with hold points and inspections
  • QA records and product certification captured as we go
  • Protection, finishing and handover documentation
We deliver the paperwork that satisfies engineers, councils and building owners, inspection records, material certifications and as-built QA packages. Behind that QA sits a fully accredited team: we’re SiteWise certified with a current prequalification, hold SiteSafe Passports and are Damstra qualified, so your principal contractor’s compliance requirements are covered on day one. CONFIRM still current.
SiteSafe Passport, SiteWise certified, confined space & gas detection, first aid, EWP, working at heights and Damstra qualified. Concrete repair often happens in live or occupied buildings, we plan access and protection accordingly.

FAQs

Practical questions, answered.

Spalling is usually caused by corroding reinforcement expanding inside the concrete. We treat the steel and the cause, not just the surface, so the repair holds rather than failing again a year later.
Yes. We deliver to the engineer’s design and specifications, and we’re happy to advise on repair methods and product selection so the detailing works on the real structure.
Often, yes, with the right staging, access and protection. We plan around live use and operations to keep people safe and disruption to a minimum.
Yes. Repair and protection go together, our coatings teams apply anti-carbonation and protective systems so the asset is sealed against the conditions that caused the damage.

Need concrete repair done properly?

Call the team and we’ll talk through the damage, the cause and the right approach to fix it for good.

Get in touch