If you have a redundant chimney stack on your Mildenhall home, getting it taken down properly starts with asking the right questions before anyone sets foot on your roof.
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A chimney take-down means removing the stack to below roof level, making good the roof structure where the chimney passed through, and finishing the area so it is fully weathertight. Done properly, you end up with a neat, watertight section of roof that matches the surrounding tiles or slates. Done badly, you end up with a patch job that leaks within a season.
The work typically involves dismantling the brickwork from the pot down, taking it below the roof line, cutting back any flashing and lead work, forming a proper weathered finish to the remaining brickwork if any is left at low level, and tiling or slating over the opening. The internal breast and fireplace opening inside the house are a separate matter - a chimney take-down addresses the external stack only.
Unused chimney stacks are a genuine maintenance liability. Mortar joints at high level deteriorate faster than anywhere else on the property because they are fully exposed, freeze-thaw cycles attack them every winter, and there is no heat source from a fire below to keep them dry. A stack that nobody uses is still absorbing rain and gradually allowing it into the roof structure beneath.
Common problems with redundant stacks include spalling brickwork, failed pointing, loose or missing chimney pots, and corroded or lifted flashing where the stack meets the roof slope. Any of these can allow water into the roof space. Taking the stack down removes the problem permanently rather than requiring repeated repair visits every few years.
Heat loss is another reason. An open chimney flue - even one that appears blocked - can draw significant cold air into a property in winter.
This is the part most homeowners skip, and it is where problems begin. Getting a cheaper price means nothing if the finish leaks or the structural opening is not properly dealt with. Before you agree to any work, the questions below will tell you a great deal about the roofer you are dealing with.
A matching tile or slate finish is the correct approach. Some contractors use a simple mortar screed over the opening - this can crack and fail within a few years as the screed is not bonded to the original roof structure in any meaningful way. Ask specifically: will the tiles or slates be cut and laid to match the existing roof covering? Will any new battens be fixed if needed? Ask to see photos of previous take-down jobs they have completed.
The flashing around a chimney stack is often the first thing to fail on an ageing roof. When the stack comes down, the old flashing comes with it. A good contractor will step-flash or dress any remaining lead carefully where it meets adjacent tiles, and will remove all old mortar and sealant from the area before finishing. If a contractor cannot explain this clearly, that is informative.
Where a chimney passes through a roof, the surrounding timbers are sometimes cut or notched. Once the stack is removed, it is worth checking that no rafters or purlins have been weakened over time by trapped moisture. A thorough contractor will look at this as a matter of course and tell you what they find.
You do not need a lengthy document. You do need something that states clearly: what is being removed, how the roof will be finished, what materials will be used, and what the total cost is. Verbal agreements are hard to enforce if something goes wrong.
Chimney brickwork is heavy. A mid-sized stack might yield half a tonne or more of brick and mortar. Ask whether the contractor will bag the debris from scaffolding or use a chute, and confirm that removal and disposal are included in the price. Some quotes exclude skip hire, which can add £150-£250 to your costs.
Safe chimney take-down almost always requires a scaffold or a tower, particularly on two-storey properties. Any contractor proposing to do the work from a ladder alone on a two-storey house should be questioned closely. Ask what access equipment they intend to use and whether the cost is included.
Chimney take-down costs in this part of Suffolk vary depending on the height and size of the stack, the roof covering type, access requirements, and whether scaffold hire is needed separately. As a rough guide, a standard two-pot stack taken down to below roof level and fully retiled or re-slated typically costs in the range of £600-£1,500 on a standard two-storey property. Larger stacks, unusually steep roofs, or difficult access will push costs higher. Be cautious of quotes significantly below this range - they often exclude scaffold hire, debris removal, or proper flashing work.
Once the work is complete, the roof surface where the chimney stood should blend as closely as possible with the surrounding covering. You should not be able to see exposed mortar patches or raw timber. Any step-flashing to adjacent surfaces should be neatly dressed and secured. Internally, if the chimney breast is still in place, you may need a ventilation grille fitted to the old fireplace opening to prevent condensation forming in the residual void - ask your contractor about this when discussing the job.
We carry out chimney take-downs across Mildenhall and the surrounding area. We also cover Bury St Edmunds and the nearby villages of Thurston, Great Barton, Pakenham and Elmswell. If you are unsure whether we cover your location, call us and we can confirm.
Call us to arrange a roof survey for your chimney stack. We will tell you exactly what the job involves, what materials we will use, and what the total cost will be before any work starts.
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Call any time. Calls are answered day and night and passed straight to our roofers.
