Bangor · County Down
Chimney stack repairs in Bangor
Before repairing a stack at a Bangor property, we ask what lies beneath it. If a chimney breast has been removed inside, the support for the stack above needs checking by an engineer before any work on the roof.
Guide price from£440per stack inc VAT
- Postcodes
- BT19, BT20
- Population
- about 61,000
- Area
- County Down
- Pricing region
- Northern Ireland
What is the ground like in County Down?
Bangor, County Down: about 61,000 residents across postcode districts BT19, BT20. Neighbouring towns we cover: Newtownards (5 miles), Holywood (6 miles) and Downpatrick (23 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. Typical buildings in County Down: Victorian seaside houses in Bangor and Holywood, brick terraces and post-war estates.
Chimney stack repairs prices in Bangor
These are guide prices for Bangor, using Northern Ireland rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| Item | Guide price | Per |
|---|---|---|
| Repointing, flaunching and minor brick repairs | £440 – £1,750 | per stack |
| Partial or full stack rebuild | £2,650 – £8,800 | per stack |
| Stack restraint or strappingest. | £350 – £1,050 | per stack |
How we usually approach chimney stack repairs
Repointing and brick repairs
Eroded joints are raked out and repointed in a mortar suited to the brick, often a lime-based mix on older stacks. Spalled or cracked bricks are cut out and replaced with matched reclaimed or new bricks. On many stacks this, with new flaunching, is all that is needed.
Best for: Upright stacks with weathered joints and some damaged bricks
Flaunching and pot resetting
Old cracked flaunching is broken out, pots are lifted and reset or replaced, and new flaunching is formed to a fall so water runs off. Unused flues can be capped with ventilated caps, which keeps rain out while letting the flue breathe.
Best for: Loose pots and cracked mortar at the top of the stack
What happens during chimney stack repairs, step by step?
Look from the ground
Photos from the street and garden, ideally with a zoom, show us the lean, the pots, the flaunching and the state of the pointing. Damp patches inside are worth photographing too, as they help trace the route water is taking.
Check what is below
We ask whether any chimney breasts have been removed, and check the loft and rooms below for cracking. If a breast has gone without proper support, we recommend an independent chartered structural engineer before any stack work.
Scaffold to the stack
Safe access is set up with a working platform around the stack. On terraces we may need to agree access over a neighbour’s roof, and a council licence is arranged where the scaffold stands on the pavement.
What to look for before calling about chimney stack repairs
- Bits of brick, mortar or render landing in the garden or gutter
- A stack visibly leaning when you look along the roof ridge
- Cracked or missing flaunching around the top of the stack
Rules for chimney stack 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 chimney stack repairs in Bangor
How much should I budget for chimney stack repairs in Bangor?
Guide prices for chimney stack repairs in Bangor start from about £440 per stack, 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 Bangor?
Yes. We take enquiries from across Bangor, including BT19, BT20, and from nearby places such as Newtownards and Holywood. Send photos for a free initial view and we will tell you what happens next.
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.
What is chimney flaunching?
Flaunching is the sloped bed of mortar on top of a chimney stack that holds the pots in place and throws rainwater off. When it cracks, water gets into the stack and pots can work loose. Renewing it is one of the most common stack repairs.
Is a leaning chimney dangerous?
A leaning chimney can become dangerous, because stacks are heavy and stand high above the roof. A slight, long-standing lean may be stable for now, but a lean that is worsening, or loose bricks and pots, should be looked at quickly. Keep people away from below if anything looks loose.
Related work in Bangor
Chimney stack repairs near Bangor
With the stack repair and scaffold plan agreed, your Bangor chimney quote becomes a fixed price in writing, before anyone goes up.