Chimney Repairs South Wales › Maesteg › Guide
Walk along almost any older row in Maesteg and you will see stacks standing on the line between two houses. That stack usually serves both properties, which changes how a repair is planned. The brickwork is the same as any other, but access, timing and agreements between owners need thought before scaffold goes up. This guide sets out how it works.
What makes a shared stack different
A shared stack sits astride the party wall, with flues from both houses running up inside it. A fault on one side often shows on the other, because the brickwork is continuous. A cracked pot over one house can let rain into flues that serve the next. So the repair is best planned for the whole stack rather than half of it.
What we check
We look at the whole stack from the street and, where we can, from inside both houses, covering the loft and chimney breast on each side. We are looking for leaning, open joints, loose pots, failed flaunching and damp that has crept across the party wall. The pattern of damage tells us whether it is one weak area or the stack as a whole.
- Pots and flaunching over each flue
- Brickwork and mortar on every face of the stack
- Damp staining in the loft on either side of the party wall
- Any lean along the ridge line
Agreeing the work with next door
Who pays and how the bill is shared is for the two owners to agree between themselves, and we cannot give legal advice on it. What we can do is explain the work clearly so both sides know what is involved. Where it helps, we talk to the neighbour about access, scaffold and timing so nobody is surprised.
How the repair is done
The method is the same as for any stack: sound brickwork is kept, failed sections are rebuilt, and pots are rebedded with fresh flaunching. On a shared stack we work across both sides in one visit where possible, so the scaffold goes up once and the stack is left even and consistent from every angle.
If only one owner wants the work done
Sometimes one side is keen and the other is not. We would not work on a shared stack without the owners being in agreement. If the other owner is unsure, a clear explanation of what the stack needs, and why, often helps. Any removal or reduction of a shared stack also needs structural support and Building Regulations checks, which we advise on first.
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Common Questions
Do both neighbours have to agree to a shared stack repair?
That is for the owners to settle between themselves, and we cannot give legal advice. In practice we like both sides to know what is planned, because scaffold and access affect both. We are happy to speak to the neighbour and explain the work.
Can you repair just my half of a shared stack?
Sometimes small jobs such as a pot or flaunching can be done on one side. But where the brickwork itself is failing, repairing half leaves the other half weak. We will tell you honestly what we see and what we recommend before you decide.
Does the whole terrace need scaffold for one stack?
Usually not. Scaffold is set up for the stack being worked on, normally at the front or back of the two houses involved, and the layout is planned around the street and pavement. Steeper rows in Maesteg need extra thought on the base, which we sort out when we quote.
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