Warminster · Wiltshire
Extension pulling away repairs in Warminster
Repairing a separating extension in Warminster can be as simple as tying the junction or as involved as underpinning. The choice rests on the movement history and the ground, and we confirm a fixed written price once the repair is specified.
Guide price from£620per junction inc VAT
- Postcodes
- BA12
- Population
- about 17,000
- Area
- Wiltshire
- Pricing region
- South West
How do local ground conditions affect extension pulling away repairs in Warminster?
We cover Warminster and its postcode districts BA12, part of Wiltshire, with a population of roughly 17,000. Nearby, we also cover Westbury (4 miles), Frome (6 miles) and Trowbridge (8 miles).
Parts of Wiltshire have clay that can shrink near trees in dry spells. Ground movement here is more often linked to soils, drains and trees than to mining. Typical buildings in Wiltshire: Stone cottages, railway terraces in Swindon, and large post-war and new-build estates.
What happens when we carry out extension pulling away repairs in Warminster?
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.
Signs you may need extension pulling away repairs
- Floor level dropping where the extension and house floors meet
- Mastic or render at the joint repeatedly splitting open
- Patio doors or windows in the extension starting to bind
How much will extension pulling away repairs cost in Warminster?
Prices in Warminster are worked out on South West 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. | £620 – £2,050 | per junction |
| Movement joint and making goodest. | £410 – £1,250 | per junction |
| Underpinning the extension where needed | £1,050 – £2,600 | per metre of wall |
Which repair method suits a home in Warminster?
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.
Extension pulling away repairs in Warminster: questions and answers
What is the price of extension pulling away repairs in Warminster?
Guide prices for extension pulling away repairs in Warminster start from about £620 per junction, including VAT, on South West 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 Warminster?
Yes. We take enquiries from across Warminster, including BA12, and from nearby places such as Westbury and Frome. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Warminster cause cracking?
Southern Wiltshire is chalk, while the north around Swindon, Chippenham and Trowbridge sits on Oxford and Kimmeridge Clays that are prone to seasonal movement near trees. Bath stone was mined underground around Corsham. Only an investigation can say why a particular building has moved.
Is it normal for an extension to crack at the join?
A fine crack at the junction is fairly common, especially in the first few years as a new extension settles. It becomes a concern when the gap is widening, tapering, letting in water or matched by sticking doors and sloping floors. Those signs point to continuing movement.
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.
More repairs we carry out in Warminster
- Bay window subsidence repairs
- Subsidence repairs
- Lintel replacement
- Subsidence insurance claim repairs
- Retaining wall repairs
Extension pulling away repairs near Warminster
If the junction at your Warminster property keeps reopening, send dated photos and we will suggest whether monitoring, a drain survey or a repair comes next.