Bolton · Greater Manchester
Extension pulling away repairs in Bolton
If the corner joint in your Bolton extension keeps splitting after you fill it, something is still moving. Measuring the gap over a few months, with dated photos, gives an engineer the evidence to recommend the right repair.
Guide price from£575per junction inc VAT
- Postcodes
- BL1, BL2, BL3
- Population
- about 140,000
- Area
- Greater Manchester
- Pricing region
- North West
How do local ground conditions affect extension pulling away repairs in Bolton?
With roughly 140,000 people, Bolton spans postcode districts BL1, BL2, BL3 in Greater Manchester. Neighbouring towns we cover: Westhoughton (4 miles), Radcliffe (5 miles) and Horwich (5 miles).
Parts of Greater Manchester have clay that can shrink near trees in dry spells. Parts of Greater Manchester lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. What you mostly find across Greater Manchester: red-brick terraces, mill-town stone terraces, inter-war semis and post-war estates.
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.
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.
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.
What to look for before calling about extension pulling away repairs
- Mastic or render at the joint repeatedly splitting open
- Patio doors or windows in the extension starting to bind
- Floor level dropping where the extension and house floors meet
Extension pulling away repairs prices in Bolton
For Bolton we use North West rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.
| Item | Guide price | Per |
|---|---|---|
| Junction crack repair with stainless tiesest. | £575 – £1,900 | per junction |
| Movement joint and making goodest. | £385 – £1,150 | per junction |
| Underpinning the extension where needed | £960 – £2,400 | per metre of wall |
How we usually approach extension pulling away repairs
Junction crack repair with stainless ties
The open joint is cut out, stainless ties or helical bars are fixed across it into both the old and new masonry, and the joint is repointed or rendered to match. Inside, the corner is replastered. This suits extensions that moved once and have since stopped.
Best for: Settled extensions with a stable gap at the junction
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
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 Bolton
How much will extension pulling away repairs cost in Bolton?
Guide prices for extension pulling away repairs in Bolton start from about £575 per junction, including VAT, on North West rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Bolton?
Yes, Bolton is covered, along with postcode districts BL1, BL2, BL3. We also cover nearby Westhoughton and Radcliffe.
Is the ground in Greater Manchester prone to subsidence?
Greater Manchester is mostly glacial till over sandstone and mudstone, with the Lancashire coalfield beneath much of Wigan, Bolton, Salford and parts of the east. Historic mine workings, made ground and old mill sites are common. 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.
Other structural repairs in Bolton
- Subsidence insurance claim repairs
- Boundary and garden wall repairs
- Structural crack repairs
- Structural surveys and crack monitoring
- Gable end wall repairs
Extension pulling away repairs near Bolton
Share the loss adjuster’s schedule for your Bolton extension claim, and we will price the junction repair and making good to it in writing.