Ballymoney · County Antrim
Extension pulling away repairs in Ballymoney
Rear and side extensions are common across Ballymoney, and so is the crack where new meets old. Usually it reflects the two parts sitting on different foundations, and the first question is whether the gap is still opening.
Guide price from£530per junction inc VAT
- Postcodes
- BT53
- Population
- about 10,000
- Area
- County Antrim
- Pricing region
- Northern Ireland
Why does the ground in County Antrim matter for extension pulling away repairs?
Ballymoney (BT53) has around 10,000 residents and sits in County Antrim. Neighbouring towns we cover: Coleraine (7 miles), Ballymena (17 miles) and Limavady (17 miles).
Shrinkable clay is less common in County Antrim than in south-east England. Historic brine and salt working has caused ground movement in parts of County Antrim in the past. What you mostly find across County Antrim: red-brick terraces in Belfast, Victorian villas, and post-war and newer estates.
What should you budget for extension pulling away repairs in Ballymoney?
Guide prices below are for homes in Ballymoney, on Northern Ireland rates and including VAT. A survey or good photos let us turn them into a fixed written price.
| 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 |
Repair options we may recommend
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 to expect when we carry out extension pulling away repairs
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.
Is it time for extension pulling away repairs? Common signs
- Floor level dropping where the extension and house floors meet
- Extension roof flashing lifting off the original wall
- A vertical crack or gap where the extension meets the house
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.
Your extension pulling away repairs questions
How much will extension pulling away repairs cost in Ballymoney?
Guide prices for extension pulling away repairs in Ballymoney 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.
Do you cover Ballymoney?
Yes, Ballymoney is covered, along with postcode districts BT53. We also cover nearby Coleraine and Ballymena.
Is the ground in County Antrim prone to subsidence?
County Antrim is largely basalt over chalk, with soft estuarine 'sleech' along Belfast Lough that is notorious for settlement. Historic salt mining is recorded near Carrickfergus. Only an investigation can say why a particular building has moved.
What is a movement joint?
A movement joint is a deliberate, flexible break in a wall that lets two parts of a building move slightly without cracking. It is filled with a compressible material and sealed. At an extension junction it can replace a rigid joint that keeps cracking.
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.
Other structural repairs in Ballymoney
- Structural crack repairs
- Subsidence repairs
- Boundary and garden wall repairs
- Retaining wall repairs
- Bowing wall repairs
Extension pulling away repairs near Ballymoney
Call about the cracked extension junction at your Ballymoney property; a free initial assessment first, then a fixed written price once the repair is specified.