Trowbridge · Wiltshire
Concrete repairs in Trowbridge
From a cracked canopy over a shop door to a spalling lintel on a house, concrete repairs in Trowbridge follow the same steps. Cut back to sound concrete, treat the steel, rebuild the section and stop water getting back in.
Guide price from£90per m² inc VAT

- Postcodes
- BA14
- Population
- about 41,000
- Area
- Wiltshire
- Pricing region
- South West
Why does the ground in Wiltshire matter for concrete repairs?
With roughly 41,000 people, Trowbridge spans postcode districts BA14 in Wiltshire. If you are just outside Trowbridge, we also cover Westbury (4 miles), Melksham (5 miles) and Bath (8 miles).
Clay soils are found in parts of Wiltshire. Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across Wiltshire: stone cottages, railway terraces in Swindon, and large post-war and new-build estates.
Methods for concrete repairs
Recasting or strengthening
Where steel has lost much of its section, or a lintel or canopy is too far gone to patch, the element is propped and rebuilt, replaced or strengthened to an engineer’s design. It is less common, but sometimes the more lasting option for small canopies and old precast lintels.
Best for: Badly corroded lintels, canopies and balcony edges
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
From first photo to finished repair
Photos and a description
Send photos of the damage close up and from a distance, plus the whole balcony, canopy or elevation. Tell us roughly how old the building is and whether anything has fallen, so we can judge whether to make it safe first.
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.
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.
Symptoms that point to concrete repairs
- Damp patches, white deposits or drips on a balcony or canopy underside
- Fine cracks running in straight lines along the line of the reinforcement
- Chunks or flakes of concrete breaking away from edges and soffits
Guide prices for concrete repairs in Trowbridge
For Trowbridge we use South West rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.
| Item | Guide price | Per |
|---|---|---|
| Concrete patch repair | £90 – £185 | per m² |
| Crack injection | £185 – £495 | per metre |
| Small jobs (minimum visit)est. | £465 – £925 | per visit |
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.
Frequently asked questions
How much should I budget for concrete repairs in Trowbridge?
Guide prices for concrete repairs in Trowbridge start from about £90 per m², including VAT, on South West rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Can you survey a property in Trowbridge?
Yes, Trowbridge is covered, along with postcode districts BA14. We also cover nearby Westbury and Melksham.
Why do houses in Wiltshire crack?
Southern Wiltshire is chalk, while the north around Swindon, Chippenham and Trowbridge sits on Oxford and Kimmeridge Clays that are prone to seasonal movement near trees. Bath stone was mined underground around Corsham. Only an investigation can say why a particular building has moved.
Why does concrete crack and rust?
Concrete cracks as it shrinks, moves with temperature or carries more load than intended. Steel inside it rusts when carbonation or salts reach it and moisture gets in. The two feed each other: cracks let water in, and rusting steel expands and cracks the concrete further.
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.
Related work in Trowbridge
Concrete repairs near Trowbridge
For a guide price on concrete repairs in Trowbridge, use the quote tool or send photos showing the spalling, any exposed steel and the drainage.