Concrete Repairs & Remediation
Cracked, spalling or drummy concrete is a symptom. We work out what is driving it, which is usually water reaching the steel, and repair it so the same patch is not back in two years.
Concrete cancer, in plain English
When water and chlorides reach the reinforcing steel inside concrete, the steel rusts. Rust takes up several times the volume of the steel it replaced, so it pushes the concrete off from the inside. That is why you see cracking, rust staining, and lumps of concrete letting go from balconies, soffits and car park ceilings.
Patching over the top without treating the steel hides it while it keeps going. A proper repair means cutting back to sound concrete past the affected area, exposing and cleaning the steel, treating or replacing it, and reinstating with a repair mortar compatible with the surrounding concrete. Then the water path that started it has to be fixed, or you have bought time rather than a repair.
Which cracks actually matter
Not every crack is a problem. Fine surface crazing and shrinkage cracks in a slab are usually cosmetic. Cracks that are widening, stepping, leaking, running through structural elements or carrying rust staining are a different conversation, and they deserve an engineer's eye before anybody quotes a repair.
We will tell you plainly which category we think yours falls into, including the times when the answer is that you need an engineer rather than a contractor. The work itself covers spalling and concrete cancer repair, crack routing and sealing, injection repairs, structural patching, balcony and soffit repairs, car park slab repairs, and joint sealant replacement.
What's included
- Spalling and concrete cancer repair
- Steel exposed, cleaned, treated or replaced
- Crack routing, sealing and injection
- Balcony, soffit and car park slab repairs
- Expansion and control joint sealant renewal
- Cause identified rather than patched over
Written price with the scope stated.
Concrete Repairs: your questions
Tell us what you need built.
Send drawings, photos or just a description. Straightforward jobs get priced from what you send. Anything structural gets looked at first. You get a written quote with the scope stated either way.