Staines-upon-Thames · Surrey
Concrete repairs in Staines-upon-Thames
Spalling concrete on a Staines-upon-Thames balcony, canopy or lintel almost always starts with the steel inside. Once carbonation or salts reach the bars, they rust and swell, and the concrete breaks away along their line until the steel is repaired and protected.
Guide price from£95per m² inc VAT

- Postcodes
- TW18, TW19, TW20
- Population
- about 51,000
- Area
- Surrey
- Pricing region
- South East
How do local ground conditions affect concrete repairs in Staines-upon-Thames?
Staines-upon-Thames, Surrey: about 51,000 residents across postcode districts TW18, TW19, TW20. If you are just outside Staines-upon-Thames, we also cover Egham (2 miles), Ashford (2 miles) and Chertsey (3 miles).
Surrey is one of the parts of the UK where clay soils are most likely to move with the seasons. Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across Surrey: Victorian and Edwardian villas, 1930s semis and detached houses in the commuter towns, and post-war estates.
What should you budget for concrete repairs in Staines-upon-Thames?
These are guide prices for Staines-upon-Thames, using South East rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| Item | Guide price | Per |
|---|---|---|
| Concrete patch repair | £95 – £200 | per m² |
| Crack injection | £200 – £540 | per metre |
| Small jobs (minimum visit)est. | £505 – £1,000 | per visit |
Repair options we may recommend
Crack injection
Cracks are sealed at the surface, then a low-viscosity resin is injected under pressure through ports until it fills the crack. A rigid resin bonds the two faces back together, while a flexible one seals live cracks against water. The choice depends on whether the crack is still moving.
Best for: Cracks letting water in, or splitting a slab or beam
Patch repair
Loose and contaminated concrete is broken out behind the bar, the steel is cleaned of rust and primed, and the section is rebuilt with a repair mortar. The edges are cut square so the patch does not feather out and fail. A protective coating may be applied over the whole surface afterwards.
Best for: Localised spalling around rusting bars
What to expect when we carry out concrete repairs
Survey and tapping test
On site we tap the surface to find hollow areas, check the steel where it is exposed and note drainage. Where the extent is unclear, a cover meter, carbonation test or chloride test may be advised before repair.
Engineer where needed
If the steel has lost significant section, or the element carries a balcony, stair or wall, an independent chartered structural engineer is appointed to assess and specify. We can arrange this, and the repair follows their scope.
Written quote
You receive a no-obligation written quote setting out the estimated area of patching, the length of crack injection, coatings and access. It becomes a fixed price in writing once the repair is specified, with any re-measure terms stated clearly.
Is it time for concrete repairs? Common signs
- Hollow sound when the surface is tapped with a hammer
- Exposed steel bars showing where concrete has fallen away
- Fine cracks running in straight lines along the line of the reinforcement
Rules for concrete repairs in England
Like-for-like repairs such as crack stitching and repointing do not usually need building control approval in England, but anything that changes or strengthens the structure, such as underpinning or rebuilding a wall, does. If the work touches a party wall, the Party Wall etc. Act 1996 may apply.
Your concrete repairs questions
How much will concrete repairs cost in Staines-upon-Thames?
Guide prices for concrete repairs in Staines-upon-Thames start from about £95 per m², including VAT, on South East rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Staines-upon-Thames?
We do. Staines-upon-Thames and the surrounding area are covered, including nearby Egham and Ashford. A free initial assessment from your photos is the first step.
Is the ground in Surrey prone to subsidence?
North Surrey sits on London Clay, the south on Weald Clay, with chalk along the North Downs and sands in the west. Large gardens with mature trees on clay make seasonal subsidence a familiar problem. Only an investigation can say why a particular building has moved.
Can you repair a cracked concrete lintel?
Often, yes. Spalling and small cracks in a concrete lintel can be patch repaired and the steel treated. If the lintel is badly cracked, sagging or the bars have lost much of their section, replacement is usually better, and the opening is propped while it is done.
What is carbonation in concrete?
Carbonation is the gradual reaction between carbon dioxide in the air and concrete, which lowers its alkalinity from the surface inward. Alkaline concrete protects the steel inside, so when carbonation reaches the bars, they can start to rust. A simple test on a freshly broken surface shows how deep it has gone.
Other structural repairs in Staines-upon-Thames
- Subsidence repairs
- Retaining wall repairs
- Gable end wall repairs
- Chimney stack repairs
- Resin injection ground stabilisation
Concrete repairs near Staines-upon-Thames
Send close-up and wide photos of the damaged concrete at your Staines-upon-Thames property for a free initial assessment and a no-obligation written quote.