If your chimney stack is showing signs of trouble, Mildenhall Roofers can take it down safely and make good the roof to a weathertight finish for homeowners in Burwell.
Call any time. Calls are answered day and night and passed straight to our roofers.
An unused chimney stack is easy to ignore until something goes wrong. Once a fireplace is sealed and a flue is no longer in use, the chimney above roofline serves no practical purpose - but it continues to face the elements every single day. Mortar erodes, brickwork absorbs moisture, and without the warmth of a working fire, the stack becomes vulnerable to frost damage and slow, persistent decay.
A chimney take-down means removing the stack to below roofline level, then making good the roof covering so the area is fully weathertight. We remove the rubble and waste as part of the job, and we set up scaffold so the work can be done safely without risking tiles or guttering below.
Most homeowners in Burwell only notice a problem chimney when the damage has already progressed. Knowing the early warning signs means you can act before a manageable job becomes a costly one.
Understanding why chimneys deteriorate helps you decide whether repair or full removal is the right answer. The causes fall into a few consistent patterns.
Freeze-thaw cycles. Brick and mortar are porous materials. When moisture soaks in and then freezes, it expands and gradually breaks the bond between mortar and brick. Over several winters, this process can loosen entire courses of brickwork, particularly near the top of the stack where exposure is greatest.
Loss of thermal protection. An active chimney stays relatively warm because the flue carries heat upward. Once decommissioned, the inside of the stack becomes cold and damp. Condensation forms on the inner walls, accelerating the breakdown of brickwork and any liner materials inside the flue.
Failed or ageing flaunching. Flaunching is the sloped mortar collar that holds the chimney pot in place. It is exposed to weather on all sides and has a finite lifespan. Once it cracks and falls away, the pot becomes unstable and the top of the stack is left open to rain.
Lead flashing failure. Lead is a long-lasting material, but it does eventually crack, especially if it was poorly dressed originally or if there has been movement in the stack above. Step flashing and back gutters are particularly prone to lifting when the mortar pointing around them deteriorates.
Structural movement. In older properties, settlement or movement in the roof structure can cause a chimney stack to lean slightly. Even a small lean puts uneven stress on the brickwork and accelerates mortar failure at the joints.
Repointing, re-flaunching, or fitting a new lead flashing can extend the life of a chimney that is structurally sound. If the flue is in use, repair is usually the only option. But for an unused stack, the calculation is different.
If the stack has already been repointed once and the mortar is failing again, or if the brickwork is soft and crumbling in multiple places, further repair is likely to be money spent repeatedly. Taking the stack down below roofline removes the problem permanently. The area of roof left behind needs to be tiled and finished neatly, but there is no ongoing maintenance cost from that point on.
A common concern is the look of the house afterwards. In most cases, once the chimney is taken down and the tiles are laid to match the surrounding roof, the change is less noticeable than people expect - particularly at eaves level or on a rear-facing slope.
Before any bricks come down, scaffold needs to go up. Working at chimney height without a proper scaffold platform is dangerous and makes it difficult to control where debris falls. We protect the roof below and lower materials safely rather than dropping them.
The stack is taken down course by course to below the roofline. The area where the chimney passed through the roof is then opened up carefully so the rafters and any existing felt can be inspected. If roof timbers have been damaged by long-term water ingress, that needs addressing before the tiles go back.
We make good the roof covering to match the existing tiles or slates as closely as possible. A lead or lead-alternative cover flashing seals the ridge or hip area where relevant. Once the roof is weathertight, the internal chimney breast can be retained as-is or removed separately - that is typically a separate plastering or building job inside the house, not part of the roofing work.
All the demolished brickwork and waste is removed from site. We do not leave rubble behind.
For a standard single stack taken to below roofline with tiles made good, costs in this area typically fall in the range of £800 to £1,800 depending on stack height, roof pitch, tile type and access difficulty. Scaffold hire is the largest variable - a chimney on a high, steeply pitched roof costs more to work on safely than one on a single-storey extension.
If the chimney breast is to be removed internally at the same time, that is a separate trade (a builder or structural engineer may be involved, depending on how many floors it runs through).
If you have spotted any of the warning signs above, or if your chimney has simply been unused for years and you want to know whether to repair or remove it, call Mildenhall Roofers for a roof survey. We will tell you honestly what state the stack is in and what options make sense for your property in Burwell.
No obligation · We'll call you to arrange a free visit
Call any time. Calls are answered day and night and passed straight to our roofers.
