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Fleet · Hampshire

Extension pulling away repairs in Fleet

The ground under Fleet and Hampshire varies street by street, and extensions built on shallower footings feel those differences first. A trial pit and a drain survey usually tell an engineer how the extension’s foundation is coping.

Guide price from£670per junction inc VAT

Rear brick extension with a tapered crack at the joint with the house
Postcodes
GU13, GU51, GU52
Population
about 39,000
Area
Hampshire
Pricing region
South East

How do local ground conditions affect extension pulling away repairs in Fleet?

We cover Fleet and its postcode districts GU13, GU51, GU52, part of Hampshire, with a population of roughly 39,000. Neighbouring towns we cover: Farnborough (3 miles), Aldershot (4 miles) and Farnham (5 miles).

Shrinkable clay is widespread in Hampshire. Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across Hampshire: Victorian terraces in Portsmouth and Southampton, 1930s semis, and large post-war and new-build estates.

Is it time for extension pulling away repairs? Common signs

  • Patio doors or windows in the extension starting to bind
  • Daylight or draughts showing through the internal corner joint
  • Floor level dropping where the extension and house floors meet

What should you budget for extension pulling away repairs in Fleet?

Prices in Fleet 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.

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

Repair options we may recommend

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

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 to expect when we carry out extension pulling away repairs

  1. 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.

  2. 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.

  3. 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.

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.

Your extension pulling away repairs questions

How much should I budget for extension pulling away repairs in Fleet?

Guide prices for extension pulling away repairs in Fleet 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.

Can you survey a property in Fleet?

We do. Fleet and the surrounding area are covered, including nearby Farnborough and Aldershot. A free initial assessment from your photos is the first step.

Why do houses in Hampshire crack?

Central Hampshire is chalk, while the south around Portsmouth, Southampton and the New Forest fringe and the north-east around Farnborough sit on London Clay, Reading Beds and other clays and sands. The clay areas see seasonal movement near trees. 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.

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.

Related work in Fleet

Extension pulling away repairs near Fleet

If the junction at your Fleet property keeps reopening, send dated photos and we will suggest whether monitoring, a drain survey or a repair comes next.

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