Glossop · Derbyshire
Extension pulling away repairs in Glossop
For many Glossop homes, the extension was added decades after the house was built, on concrete that never matched the original footings. Where that difference causes movement, a designed movement joint or a deeper foundation is the usual fix.
Guide price from£590per junction inc VAT

- Postcodes
- SK13
- Population
- about 18,000
- Area
- Derbyshire
- Pricing region
- East Midlands
What should you know about the ground under Glossop?
We cover Glossop and its postcode districts SK13, part of Derbyshire, with a population of roughly 18,000. We also take enquiries from nearby Hyde (5 miles), New Mills (6 miles) and Ashton-under-Lyne (7 miles).
Derbyshire has a mix of ground, with clay in some places and firmer rock in others. Parts of Derbyshire lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. What you mostly find across Derbyshire: brick terraces in former mining towns, gritstone cottages in the Peak, and inter-war and post-war semis.
Symptoms that point to extension pulling away repairs
- Extension roof flashing lifting off the original wall
- Patio doors or windows in the extension starting to bind
- Daylight or draughts showing through the internal corner joint
Guide prices for extension pulling away repairs in Glossop
The ranges below reflect typical East Midlands costs for extension pulling away repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Junction crack repair with stainless tiesest. | £590 – £1,950 | per junction |
| Movement joint and making goodest. | £390 – £1,200 | per junction |
| Underpinning the extension where needed | £980 – £2,450 | per metre of wall |
Methods for 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
From first photo to finished repair
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.
Finish and hand over
Internal corners are replastered, skirtings and coving refixed, and doors or windows in the extension eased where the movement affected them. Records of the repair and any approvals are passed to you.
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.
Frequently asked questions
How much should I budget for extension pulling away repairs in Glossop?
Guide prices for extension pulling away repairs in Glossop start from about £590 per junction, 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.
Can you survey a property in Glossop?
Yes, Glossop is covered, along with postcode districts SK13. We also cover nearby Hyde and New Mills.
Why do houses in Derbyshire crack?
East Derbyshire, including Chesterfield, Ilkeston and Heanor, lies on the Coal Measures with a long history of shallow and deep coal mining. The Peak District to the west is limestone and gritstone, and Derby itself sits largely on Mercia Mudstone. Only an investigation can say why a particular building has moved.
Who is responsible if a recent extension is moving?
If the extension is recent, the original builder, the designer or building control records may be relevant, and you may have rights against the builder. Gather the plans, completion certificate and contract. Insurance often excludes defects in new construction, so check your policy.
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.
Related work in Glossop
- Brick arch repairs
- Floor joist repairs
- Mining subsidence repairs
- Subsidence insurance claim repairs
- Subsidence repairs
Extension pulling away repairs near Glossop
Send photos of the extension junction at your Glossop home, inside and out, and we will give a free initial assessment and a guide price.