Stevenage · Hertfordshire
Structural crack repairs in Stevenage
If you have found a crack in a wall at your Stevenage property, the first job is to work out why it appeared. Our crack repairs start with the cause, so the stitching, repointing or rebuilding that follows has a fair chance of lasting.
Guide price from£85per metre of crack inc VAT

- Postcodes
- SG1, SG2
- Population
- about 92,000
- Area
- Hertfordshire
- Pricing region
- East of England
What should you know about the ground under Stevenage?
We cover Stevenage and its postcode districts SG1, SG2, part of Hertfordshire, with a population of roughly 92,000. Neighbouring towns we cover: Hitchin (5 miles), Letchworth Garden City (5 miles) and Welwyn Garden City (7 miles).
Shrinkable clay is widespread in Hertfordshire. Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in Hertfordshire: Garden-city houses in Letchworth and Welwyn, 1930s semis, Victorian terraces and post-war new-town estates.
Symptoms that point to structural crack repairs
- Doors or windows that have started sticking or no longer latch
- A crack noticeably wider at the top than the bottom, or the reverse
- Stepped cracks zigzagging through the mortar joints of outside brickwork
Guide prices for structural crack repairs in Stevenage
These are guide prices for Stevenage, using East of England rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| Item | Guide price | Per |
|---|---|---|
| Crack stitching with helical bars | £85 – £190 | per metre of crack |
| Single crack, outside only (up to about 2 m)est. | £420 – £945 | per crack |
| Internal making good and redecoration of the crack lineest. | £160 – £525 | per room |
Methods for structural crack repairs
Rebuilding a cracked section
Where bricks have split or the wall has moved out of line, the damaged area is taken down and rebuilt, bonded into sound masonry on either side. Reclaimed or matched bricks keep the repair discreet, with temporary support used where needed.
Best for: Badly displaced or broken brickwork
Crack stitching with helical bars
Stainless steel helical bars are grouted into slots cut along the bed joints, bridging the crack so the masonry works as one piece again. It is the standard repair for wider stepped and vertical cracks once whatever caused them has stopped.
Best for: Stable cracks wider than about 5 mm, or ones that keep reopening
From first photo to finished repair
Deal with the cause
Leaking drains, failed ties, a sagging lintel or ground movement are put right first, sometimes through an insurance claim. Repairing a crack before its cause is fixed usually means paying for the same job twice.
Written quote
You receive a no-obligation written quote listing each crack, the repair method chosen for it and the making good inside and out. Once the scope is settled, that becomes a fixed price in writing.
Repair and make good
Cracks are stitched, repointed or rebuilt as specified, with mortar matched to the existing wall. Internal crack lines are filled and redecorated where included, and you get a written note of what was done.
Rules for structural crack 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
What is the price of structural crack repairs in Stevenage?
Guide prices for structural crack repairs in Stevenage start from about £85 per metre of crack, 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 carry out structural crack repairs in Stevenage?
Yes. We take enquiries from across Stevenage, including SG1, SG2, and from nearby places such as Hitchin and Letchworth Garden City. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Stevenage cause cracking?
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.
When is a crack in a wall structural?
A crack is more likely to be structural when it is wider than about 5 mm, tapers, passes through the whole wall or keeps growing. BRE Digest 251 treats damage up to about 5 mm as aesthetic and over 25 mm as a stability concern. Width is a guide, not a diagnosis.
Are horizontal cracks in a wall serious?
Horizontal cracks are often more serious than vertical ones, because they suggest the wall is being pushed or lifted. Cracks repeating every few courses point to rusting wall ties, while one long crack with a bulge may mean lost restraint.
More repairs we carry out in Stevenage
- Crack stitching
- Bowing wall repairs
- Chimney stack repairs
- Boundary and garden wall repairs
- Resin injection ground stabilisation
Structural crack repairs near Stevenage
Each crack at your Stevenage property is priced separately in our written quote, so you can see exactly what you are paying for and why.