Boston · Lincolnshire
Concrete repairs in Boston
Where flats and houses in Boston and across Lincolnshire have concrete balconies, canopies or lintels several decades old, carbonation has had time to reach the reinforcement. That is when spalling and straight-line cracking tend to appear.
Guide price from£85per m² inc VAT
- Postcodes
- PE21
- Population
- about 45,000
- Area
- Lincolnshire
- Pricing region
- East Midlands
How do local ground conditions affect concrete repairs in Boston?
Boston, Lincolnshire: about 45,000 residents across postcode districts PE21. If you are just outside Boston, we also cover Spalding (14 miles), Sleaford (16 miles) and Skegness (19 miles).
Parts of Lincolnshire have clay that can shrink near trees in dry spells. Ground movement here is more often linked to soils, drains and trees than to mining. Typical buildings in Lincolnshire: Victorian terraces in Lincoln and Grimsby, fenland brick houses, seaside bungalows and post-war 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
Protective coatings and sealing
After repair, an anti-carbonation coating, a waterproof deck membrane on a balcony, or a penetrating sealer slows the return of moisture and carbon dioxide. Restoring drips, upstands and falls so water drains away is as important as the coating itself.
Best for: Extending the life of repaired balconies and canopies
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.
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.
Break out, repair, protect
Damaged concrete is cut back to sound material, steel cleaned and primed, and the section rebuilt and cured. Cracks are injected, then the surface is coated and drainage details put right so water runs off rather than sitting.
Symptoms that point to concrete repairs
- Rust-coloured stains or streaks running down the concrete surface
- Exposed steel bars showing where concrete has fallen away
- Hollow sound when the surface is tapped with a hammer
Guide prices for concrete repairs in Boston
For Boston we use East Midlands 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 | £85 – £175 | per m² |
| Crack injection | £175 – £470 | per metre |
| Small jobs (minimum visit)est. | £440 – £880 | 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 will concrete repairs cost in Boston?
Guide prices for concrete repairs in Boston start from about £85 per m², including VAT, on East Midlands rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Boston?
Yes. We take enquiries from across Boston, including PE21, and from nearby places such as Spalding and Sleaford. Send photos for a free initial view and we will tell you what happens next.
Is the ground in Lincolnshire prone to subsidence?
Lincolnshire has Lias, Oxford and Kimmeridge clays on the vales, chalk on the Wolds and soft silts and peat in the fens around Boston and Spalding. Fen ground and clay can both settle or shrink in dry years. Only an investigation can say why a particular building has moved.
What is spalling concrete?
Spalling is concrete breaking away from the surface in flakes or chunks. In reinforced concrete it is usually caused by the steel inside rusting and expanding, which pushes the cover off. It often follows a straight line where a bar sits close to the surface, with rust staining nearby.
Can a concrete balcony be repaired rather than replaced?
In most cases, yes. Patch repairs, crack injection, a new waterproof deck and restored drips usually extend a balcony’s life considerably. Replacement is generally only needed where the steel has lost a lot of section or the balcony’s fixing to the building is compromised.
Other structural repairs in Boston
- Floor joist repairs
- Gable end wall repairs
- Retaining wall repairs
- Structural surveys and crack monitoring
- Subsidence repairs
Concrete repairs near Boston
Send close-up and wide photos of the damaged concrete at your Boston property for a free initial assessment and a no-obligation written quote.