Borehamwood · Hertfordshire
Concrete repairs in Borehamwood
Where flats and houses in Borehamwood and across Hertfordshire 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£90per m² inc VAT
- Postcodes
- WD6
- Population
- about 36,000
- Area
- Hertfordshire
- Pricing region
- East of England
What should you know about the ground under Borehamwood?
With roughly 36,000 people, Borehamwood spans postcode districts WD6 in Hertfordshire. Neighbouring towns we cover: Barnet (4 miles), Potters Bar (5 miles) and Watford (5 miles).
Hertfordshire 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 Hertfordshire: garden-city houses in Letchworth and Welwyn, 1930s semis, Victorian terraces and post-war new-town estates.
Guide prices for concrete repairs in Borehamwood
Prices in Borehamwood are worked out on East of England rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.
| Item | Guide price | Per |
|---|---|---|
| Concrete patch repair | £90 – £190 | per m² |
| Crack injection | £190 – £505 | per metre |
| Small jobs (minimum visit)est. | £470 – £945 | per visit |
Methods for concrete repairs
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
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
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.
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.
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
- Fine cracks running in straight lines along the line of the reinforcement
- Chunks or flakes of concrete breaking away from edges and soffits
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 Borehamwood?
Guide prices for concrete repairs in Borehamwood start from about £90 per m², including VAT, on East of England rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Borehamwood?
Yes, Borehamwood is covered, along with postcode districts WD6. We also cover nearby Barnet and Potters Bar.
Is the ground in Hertfordshire prone to subsidence?
South Hertfordshire around Watford, Borehamwood and Potters Bar is London Clay, while the north and west are chalk with clay-with-flints and the east has boulder clay. The clay areas are prone to seasonal subsidence near trees. Only an investigation can say why a particular building has moved.
Do you repair concrete on blocks of flats?
Yes, we repair concrete on houses, flats and small commercial buildings, including balconies, walkway edges, canopies and lintels. For flats, the freeholder, managing agent or owners’ association normally instructs the work. We can price to an engineer’s schedule where one has been prepared.
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.
Other structural repairs in Borehamwood
- Subsidence insurance claim repairs
- Bay window subsidence repairs
- Resin injection ground stabilisation
- Boundary and garden wall repairs
- Floor joist repairs
Concrete repairs near Borehamwood
The written quote for concrete repairs in Borehamwood sets out the estimated areas and lengths, then becomes a fixed price in writing once the repair is specified.