Holyhead · Gwynedd
Chimney stack repairs in Holyhead
On older houses around Holyhead, many stacks lean slightly away from the prevailing weather. That is usually sulphate attack in the mortar, and the repair depends on how far the stack has moved and how sound the brickwork still is.
Guide price from£460per stack inc VAT
- Postcodes
- LL65
- Population
- about 11,000
- Area
- Gwynedd
- Pricing region
- Wales
How do local ground conditions affect chimney stack repairs in Holyhead?
With roughly 11,000 people, Holyhead spans postcode districts LL65 in Gwynedd. Nearby places we cover include Llangefni (14 miles), Caernarfon (19 miles) and Bangor (21 miles).
Clay shrinkage is less of a concern in Gwynedd, so other causes such as drains, poor footings or older walls are checked first. Old metal-mine shafts and workings are recorded in places, so mining searches are routine for some properties. Across Gwynedd, most homes are slate and stone terraces, chapels and cottages, Victorian seaside houses and post-war estates.
Guide prices for chimney stack repairs in Holyhead
The ranges below reflect typical Wales costs for chimney stack repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| Item | Guide price | Per |
|---|---|---|
| Repointing, flaunching and minor brick repairs | £460 – £1,850 | per stack |
| Partial or full stack rebuild | £2,750 – £9,200 | per stack |
| Stack restraint or strappingest. | £370 – £1,100 | per stack |
Methods for chimney stack repairs
Stack restraint or strapping
A stack that has leaned slightly but is otherwise sound can be restrained with stainless straps or ties fixed back to the roof structure or the gable. This stops further movement without taking the stack down, and is often combined with repointing.
Best for: Slightly leaning stacks with sound brickwork
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
From first photo to finished repair
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.
Repair, restrain or rebuild
The agreed work is carried out: repointing, new flaunching and pots, restraint, or taking the stack down and rebuilding it. Lead flashings where the stack meets the roof are checked and renewed if needed.
Weatherproof and clear
Caps or cowls are fitted where agreed, the roof around the stack is checked for slipped tiles, and debris is cleared from gutters. You receive photos of the finished stack taken from the scaffold, since it is hard to see from the ground.
Symptoms that point to chimney stack repairs
- Damp patches on the chimney breast inside, especially after rain
- Cracked or missing flaunching around the top of the stack
- Chimney pots that are loose, tilted or cracked at the base
Rules for chimney stack repairs in Wales
In Wales, the Welsh version of the Building Regulations applies. Underpinning and other work that alters or strengthens the structure needs building control approval and inspection; like-for-like repairs often do not. The Party Wall etc. Act 1996 applies to work on party walls and excavation close to a neighbour’s foundations.
Frequently asked questions
What is the price of chimney stack repairs in Holyhead?
Guide prices for chimney stack repairs in Holyhead start from about £460 per stack, including VAT, on Wales rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you carry out chimney stack repairs in Holyhead?
Yes. We take enquiries from across Holyhead, including LL65, and from nearby places such as Llangefni and Caernarfon. Send photos for a free initial view and we will tell you what happens next.
Does the ground around Holyhead cause cracking?
Gwynedd and Anglesey are mostly hard rock with glacial deposits, so clay shrinkage is uncommon. Historic slate quarrying and metal mining have left tips and workings in places. Only an investigation can say why a particular building has moved.
Should I remove my chimney stack instead of repairing it?
It depends on whether you use the flue, the stack’s condition and how it relates to the house next door. Taking a stack down below the roofline changes the structure and the roof, and on a terrace it can affect your neighbour. We can price both options.
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.
More repairs we carry out in Holyhead
- Boundary and garden wall repairs
- Structural crack repairs
- Structural surveys and crack monitoring
- Subsidence repairs
- Retaining wall repairs
Chimney stack repairs near Holyhead
Each part of a Holyhead chimney job, scaffold included, is itemised in our no-obligation written quote so you can see where the cost lies.