Blaydon-on-Tyne · Tyne and Wear
Extension pulling away repairs in Blaydon-on-Tyne
For many Blaydon-on-Tyne 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£550per junction inc VAT

- Postcodes
- NE15, NE21, NE40
- Population
- about 15,000
- Area
- Tyne and Wear
- Pricing region
- North East
What is the ground like in Tyne and Wear?
With roughly 15,000 people, Blaydon-on-Tyne spans postcode districts NE15, NE21, NE40 in Tyne and Wear. Neighbouring towns we cover: Whickham (2 miles), Newcastle upon Tyne (4 miles) and Stanley (7 miles).
Parts of Tyne and Wear have clay that can shrink near trees in dry spells. Historic coal workings are recorded beneath parts of Tyne and Wear, and a coal mining search is worth checking where movement is unexplained. What you mostly find across Tyne and Wear: Tyneside flats and terraces, Victorian villas, inter-war council estates and post-war semis.
Guide prices for extension pulling away repairs in Blaydon-on-Tyne
These are guide prices for Blaydon-on-Tyne, using North East rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| Item | Guide price | Per |
|---|---|---|
| Junction crack repair with stainless tiesest. | £550 – £1,850 | per junction |
| Movement joint and making goodest. | £370 – £1,100 | per junction |
| Underpinning the extension where needed | £920 – £2,300 | per metre of wall |
Methods for extension pulling away repairs
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
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
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.
Symptoms that point to extension pulling away repairs
- Daylight or draughts showing through the internal corner joint
- Mastic or render at the joint repeatedly splitting open
- A vertical crack or gap where the extension meets the house
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 Blaydon-on-Tyne?
Guide prices for extension pulling away repairs in Blaydon-on-Tyne start from about £550 per junction, including VAT, on North East 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 Blaydon-on-Tyne?
Yes, Blaydon-on-Tyne is covered, along with postcode districts NE15, NE21, NE40. We also cover nearby Whickham and Newcastle upon Tyne.
Why do houses in Tyne and Wear crack?
Tyne and Wear lies on the Durham and Northumberland coalfield, with old shallow workings recorded beneath parts of Newcastle, Gateshead and Sunderland, mostly under a cover of glacial clay. 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.
Will my extension need underpinning?
Often not. Many separating extensions are fixed by repairing a drain, tying the junction or forming a movement joint. Underpinning is for extensions that keep dropping because their footings are too shallow or the ground beneath is poor, as shown by monitoring.
Related work in Blaydon-on-Tyne
- Roof structure repairs
- Retaining wall repairs
- Bay window subsidence repairs
- Subsidence insurance claim repairs
- Lintel replacement
Extension pulling away repairs near Blaydon-on-Tyne
For a no-obligation written quote to repair an extension pulling away in Blaydon-on-Tyne, call or send a few photos with a tape measure across the gap.