Newtownards · County Down
Extension pulling away repairs in Newtownards
For many Newtownards homes, the extension was added decades after the house was built, on concrete that never matched the original footings. Where that difference causes movement, a designed movement joint or a deeper foundation is the usual fix.
Guide price from£530per junction inc VAT

- Postcodes
- BT23
- Population
- about 29,000
- Area
- County Down
- Pricing region
- Northern Ireland
Why does the ground in County Down matter for extension pulling away repairs?
Newtownards is in County Down and takes in postcode districts BT23. About 29,000 people live there. Neighbouring towns we cover: Bangor (5 miles), Holywood (6 miles) and Downpatrick (18 miles).
Most of County Down is on firmer ground than the clay belts of the south-east. Ground movement here is more often linked to soils, drains and trees than to mining. Housing stock in County Down: Victorian seaside houses in Bangor and Holywood, brick terraces and post-war estates.
How we usually approach extension pulling away repairs
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
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
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.
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.
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
- Daylight or draughts showing through the internal corner joint
- 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 Newtownards
The ranges below reflect typical Northern Ireland costs for extension pulling away repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Junction crack repair with stainless tiesest. | £530 – £1,750 | per junction |
| Movement joint and making goodest. | £350 – £1,050 | per junction |
| Underpinning the extension where needed | £880 – £2,200 | per metre of wall |
Rules for extension pulling away repairs in Northern Ireland
In Northern Ireland, the Building Regulations (Northern Ireland) 2012 apply and the council’s building control service approves structural work such as underpinning; minor like-for-like repairs usually need no approval. The Party Wall Act does not apply in Northern Ireland, so work to shared walls depends on deeds and agreement with neighbours.
Questions about extension pulling away repairs in Newtownards
How much should I budget for extension pulling away repairs in Newtownards?
Guide prices for extension pulling away repairs in Newtownards start from about £530 per junction, including VAT, on Northern Ireland 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 Newtownards?
We do. Newtownards and the surrounding area are covered, including nearby Bangor and Holywood. A free initial assessment from your photos is the first step.
Why do houses in County Down crack?
County Down is mostly drumlin till over older rock and granite in the Mournes, with soft estuarine ground around Belfast Lough and Strangford. 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.
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.
Related work in Newtownards
- Brick arch repairs
- Roof structure repairs
- Boundary and garden wall repairs
- Bay window subsidence repairs
- Subsidence repairs
Extension pulling away repairs near Newtownards
If the junction at your Newtownards property keeps reopening, send dated photos and we will suggest whether monitoring, a drain survey or a repair comes next.