Bishop's Stortford · Hertfordshire
Extension pulling away repairs in Bishop's Stortford
An extension pulling away from a Bishop's Stortford house is often a drain problem, a shallow footing or a missing tie-in, rather than a failing building. Finding out which applies decides whether the fix is a junction repair or new foundations.
Guide price from£630per junction inc VAT
- Postcodes
- CM22, CM23, CM24
- Population
- about 41,000
- Area
- Hertfordshire
- Pricing region
- East of England
Is Hertfordshire prone to ground movement?
Bishop's Stortford, Hertfordshire: about 41,000 residents across postcode districts CM22, CM23, CM24. Nearby, we also cover Harlow (7 miles), Ware (9 miles) and Hoddesdon (10 miles).
Shrinkable clay is widespread in Hertfordshire. Ground movement here is more often linked to soils, drains and trees than to mining. Typical buildings in Hertfordshire: Garden-city houses in Letchworth and Welwyn, 1930s semis, Victorian terraces and post-war new-town estates.
What to look for before calling about extension pulling away repairs
- Patio doors or windows in the extension starting to bind
- Extension roof flashing lifting off the original wall
- Floor level dropping where the extension and house floors meet
Extension pulling away repairs prices in Bishop's Stortford
Prices in Bishop's Stortford 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 |
|---|---|---|
| Junction crack repair with stainless tiesest. | £630 – £2,100 | per junction |
| Movement joint and making goodest. | £420 – £1,250 | per junction |
| Underpinning the extension where needed | £1,050 – £2,600 | per metre of wall |
How we usually approach extension pulling away repairs
Movement joint and making good
Where some seasonal movement is expected to continue, the junction is formed into a proper flexible movement joint with a compressible filler and sealant, so the two parts can move without cracking. Flashings and internal finishes are detailed to suit.
Best for: Minor ongoing movement that does not threaten the structure
Underpinning the extension
If the extension is still dropping because its footings are too shallow or on poor ground, they are taken deeper by mass concrete, beam-and-base or mini-piles. The engineer designs the scheme, and the junction is repaired once the new foundation is in.
Best for: Active movement from shallow footings, roots or soft ground
What happens during extension pulling away repairs, step by step?
Show us the junction
Send photos of the crack outside, the internal corner and any flashing above, with a measure for scale. We give a free initial assessment and an initial view on whether the gap is likely old or still opening.
Choose the fix
The engineer decides between ties, a movement joint or underpinning. We confirm a fixed price in writing once the repair is specified, covering the junction, flashings, internal finishes and any foundation work.
Repair the junction
Drains are repaired first if they are leaking. The joint is then tied, formed as a movement joint or rebuilt after underpinning, with roof flashings reset so the junction stays watertight. Building control is handled where needed.
Rules for extension pulling away repairs in England
In England, underpinning and other work that alters or strengthens a wall or foundation is building work under the Building Regulations (Part A, structure), so building control approves and inspects it. Like-for-like repairs often are not, and we tell you which applies before a price is agreed. Work to a party wall, or excavation close to a neighbour’s foundations, can also need a notice under the Party Wall etc. Act 1996.
Questions about extension pulling away repairs in Bishop's Stortford
What is the price of extension pulling away repairs in Bishop's Stortford?
Guide prices for extension pulling away repairs in Bishop's Stortford start from about £630 per junction, 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 extension pulling away repairs in Bishop's Stortford?
Yes. We take enquiries from across Bishop's Stortford, including CM22, CM23, CM24, and from nearby places such as Harlow and Ware. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Bishop's Stortford 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.
Can a drain under my extension cause it to move?
Yes, a cracked or displaced drain beneath or beside an extension can soften clay or wash away fine soil. A CCTV drain survey usually finds it. Repairing the drain is often the first and most important step before any repair to the walls.
Why is my extension pulling away from my house?
Usually because the extension and the house sit on different foundations that react differently to the ground. Shallow extension footings, leaking drains under the extension, nearby roots and weak tie-ins between old and new walls are the common causes.
More repairs we carry out in Bishop's Stortford
- Brick arch repairs
- Subsidence insurance claim repairs
- Bay window subsidence repairs
- Boundary and garden wall repairs
- Floor joist repairs
Extension pulling away repairs near Bishop's Stortford
Send photos of the extension junction at your Bishop's Stortford home, inside and out, and we will give a free initial assessment and a guide price.