Maidenhead · Berkshire
Extension pulling away repairs in Maidenhead
Repairing a separating extension in Maidenhead 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£670per junction inc VAT
- Postcodes
- SL6
- Population
- about 70,000
- Area
- Berkshire
- Pricing region
- South East
Is Berkshire prone to ground movement?
With roughly 70,000 people, Maidenhead spans postcode districts SL6 in Berkshire. Neighbouring towns we cover: Marlow (4 miles), Slough (5 miles) and High Wycombe (7 miles).
Shrinkable clay is widespread in Berkshire. Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across Berkshire: Victorian and Edwardian terraces in Reading and Windsor, 1930s semis, and large post-war new-town estates around Bracknell.
What happens when we carry out extension pulling away repairs in Maidenhead?
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.
Signs you may need extension pulling away repairs
- Daylight or draughts showing through the internal corner joint
- A vertical crack or gap where the extension meets the house
- Floor level dropping where the extension and house floors meet
How much will extension pulling away repairs cost in Maidenhead?
Prices in Maidenhead are worked out on South East 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. | £670 – £2,250 | per junction |
| Movement joint and making goodest. | £450 – £1,350 | per junction |
| Underpinning the extension where needed | £1,100 – £2,800 | per metre of wall |
Which repair method suits a home in Maidenhead?
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
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
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 Maidenhead: questions and answers
What is the price of extension pulling away repairs in Maidenhead?
Guide prices for extension pulling away repairs in Maidenhead start from about £670 per junction, including VAT, on South East 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 Maidenhead?
Yes, Maidenhead is covered, along with postcode districts SL6. We also cover nearby Marlow and Slough.
Does the ground around Maidenhead cause cracking?
East Berkshire is largely London Clay with Thames terrace gravels along the river, while the west rises onto chalk downland. Houses on the clay near Slough, Windsor and Bracknell are the ones most exposed to shrink-swell movement. 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.
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 Maidenhead
- Gable end wall repairs
- Concrete repairs
- Roof structure repairs
- Brick arch repairs
- Bay window subsidence repairs
Extension pulling away repairs near Maidenhead
If the junction at your Maidenhead property keeps reopening, send dated photos and we will suggest whether monitoring, a drain survey or a repair comes next.