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Reading · Berkshire

Extension pulling away repairs in Reading

An extension pulling away from a Reading house is often a drain problem, a shallow footing or a missing tie-in, rather than a failing building. Finding out which applies decides whether the fix is a junction repair or new foundations.

Guide price from£670per junction inc VAT

Rear brick extension with a tapered crack at the joint with the house
Postcodes
RG1, RG4, RG30
Population
about 320,000
Area
Berkshire
Pricing region
South East

What should you know about the ground under Reading?

We cover Reading and its postcode districts RG1, RG4, RG30, part of Berkshire, with a population of roughly 320,000. We also take enquiries from nearby Wokingham (7 miles), Bracknell (10 miles) and Tadley (10 miles).

Much of Berkshire sits on clay that shrinks in dry summers and swells in wet winters. Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in Berkshire: Victorian and Edwardian terraces in Reading and Windsor, 1930s semis, and large post-war new-town estates around Bracknell.

Extension pulling away repairs prices in Reading

For Reading we use South East rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.

Guide prices inc VAT on South East rates. Items marked est. are our estimates.
ItemGuide pricePer
Junction crack repair with stainless tiesest.£670 – £2,250per junction
Movement joint and making goodest.£450 – £1,350per junction
Underpinning the extension where needed£1,100 – £2,800per 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

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

What happens during extension pulling away repairs, step by step?

  1. 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.

  2. Find what is moving

    An independent chartered structural engineer can inspect, and we can arrange one. A drain survey under the extension, a trial pit at its footing and tell-tale monitoring across the joint are common checks before choosing the repair.

  3. 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.

What to look for before calling about extension pulling away repairs

  • A vertical crack or gap where the extension meets the house
  • Patio doors or windows in the extension starting to bind
  • Daylight or draughts showing through the internal corner joint

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 Reading

What is the price of extension pulling away repairs in Reading?

Guide prices for extension pulling away repairs in Reading 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 Reading?

Yes, Reading is covered, along with postcode districts RG1, RG4, RG30. We also cover nearby Wokingham and Bracknell.

Does the ground around Reading 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.

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.

More repairs we carry out in Reading

Extension pulling away repairs near Reading

Share the loss adjuster’s schedule for your Reading extension claim, and we will price the junction repair and making good to it in writing.

Next step

Send us photos of the crack or movement

A free initial assessment from your photos, then a no-obligation written quote. If an engineer, drain survey or monitoring is needed first, we say so before you spend anything.

CallGet a quote