Craigavon · County Armagh
Underpinning in Craigavon
Most underpinning in Craigavon, as elsewhere, is partial, strengthening one corner or a single wall rather than the whole house. The engineer plans how the new foundation meets the old so that the junction does not become the next place to crack.
Guide price from£880per metre of wall inc VAT
- Postcodes
- BT64, BT65, BT66
- Population
- about 59,000
- Area
- County Armagh
- Pricing region
- Northern Ireland
What should you know about the ground under Craigavon?
With roughly 59,000 people, Craigavon spans postcode districts BT64, BT65, BT66 in County Armagh. Neighbouring towns we cover: Portadown (3 miles), Banbridge (8 miles) and Armagh (13 miles).
Most of County Armagh 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 Armagh: Georgian houses in Armagh, brick terraces in Portadown and Lurgan, and post-war estates.
Underpinning prices in Craigavon
For Craigavon we use Northern Ireland rates. Treat the table as a budget guide, inc VAT; the price you pay is the one on your written quote.
| Item | Guide price | Per |
|---|---|---|
| Mass-concrete underpinning | £880 – £1,300 | per metre of wall |
| Beam-and-base underpinning | £1,300 – £2,200 | per metre of wall |
| Mini-piled underpinning | £1,750 – £3,100 | per metre of wall |
| Engineer's design and building control feesest. | £705 – £2,200 | per scheme |
How we usually approach underpinning
Mini-piled underpinning
Small-diameter piles are driven or bored down to firm ground and linked by a reinforced beam or needles that pick up the wall. Compact rigs fit through narrow access, and the method reaches depths that would be impractical to excavate by hand.
Best for: Deep soft ground, tree roots, or restricted access
Mass concrete underpinning
The traditional method. Short sections under the wall are dug out in a set sequence, usually about a metre at a time, and filled with concrete before the next section is opened. It suits moderate depths and good access, and it needs little specialist plant.
Best for: Shallow failures on firm ground found at moderate depth
What happens during underpinning, step by step?
Engineer’s investigation
An independent chartered structural engineer studies the monitoring results, trial pits and soil tests, then decides whether underpinning is needed and which method suits. We can arrange the engineer if you do not already have one.
Design and approvals
The engineer produces drawings and calculations. We make the building control or building warrant application, and party wall notices are served where the law requires them, before any digging starts.
Excavation and concrete
Work runs in the sequence the engineer sets so the wall is never left unsupported over a long length. Building control inspects the excavations before concrete goes in, and each section is dry-packed tight to the footing above.
What to look for before calling about underpinning
- A large tree nearby that cannot be removed or reduced
- Cracks that keep widening after the drains have been repaired
- Floors sloping noticeably towards one external wall
Rules for underpinning 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 underpinning in Craigavon
How much should I budget for underpinning in Craigavon?
Guide prices for underpinning in Craigavon start from about £880 per metre of wall, 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 Craigavon?
Yes. We take enquiries from across Craigavon, including BT64, BT65, BT66, and from nearby places such as Portadown and Banbridge. Send photos for a free initial view and we will tell you what happens next.
Why do houses in County Armagh crack?
County Armagh has glacial drumlin till over older rock, with soft ground and peat near Lough Neagh. Only an investigation can say why a particular building has moved.
Does underpinning need building control approval?
Yes, underpinning is building work and needs approval and inspections in England and Wales, a building warrant in Scotland, and council building control in Northern Ireland. Inspectors usually check the excavations before concrete is poured. We deal with building control as part of the job.
Do I need to tell my neighbours about underpinning?
In England and Wales you usually do. Underpinning a party wall normally needs two months’ notice, and excavating near a neighbour’s foundations needs one month’s notice under the Party Wall etc. Act 1996. Scotland and Northern Ireland have no equivalent Act, but agreeing the work in writing still helps.
Related work in Craigavon
- Lintel replacement
- Boundary and garden wall repairs
- Brick arch repairs
- Retaining wall repairs
- Bowing wall repairs
Underpinning near Craigavon
Not sure your Craigavon home needs underpinning at all? Send photos for a free initial assessment and we will say whether an engineer should look first.