Building control has to approve this work before it starts, and an inspector will want to see the propping and the beam bearings on site. We make the application and book the visits across the DA postcodes. The steel comes from a structural engineer's calculation; we install it, make good, and hand over the certificate.
Chimney breasts in Bexley's 1930s semis
Most of Bexley's interwar semis still have their original chimney breasts serving the front and rear reception rooms, and in a semi the stack is built into the shared party wall on the boundary with next door. Because the breast helps carry the masonry and the stack above it, we begin with a structural engineer confirming exactly what the wall is supporting before anything is touched.
Where a breast is removed only on the ground or first floor, we support the retained stack above with steel gallows brackets bolted into the sound brickwork of the party wall, or a small beam where brackets are unsuitable. On semis where the stack is fully redundant top to bottom, we more often take the whole stack out and make good the roof and flashing.
Party wall and building control in Bexley
Because the chimney stack in a Bexley semi sits within the party wall shared with the neighbouring house, removing the breast or fixing gallows brackets is notifiable under the Party Wall Act, and you serve notice on the neighbour before work begins. Never leaving a stack unsupported, we design the support to carry every course of brickwork left above.
The structural support is notifiable under the Building Regulations, so Bexley Council building control inspects the brackets or beam and signs the work off. We manage all of it, from the engineer's assessment through safe removal and propping to capping any redundant flue with ventilation against damp, then replastering so no trace of the breast remains.
Taking the stack down above the roof
Where the whole stack is redundant, taking it right off above the roofline is often better than leaving heavy masonry propped in the loft. In a Bexley semi the stack is usually shared, so we take down only your half and rebuild the exposed side of the neighbour's flue in facing brick, weathered and pointed so it sheds water on its own.
The roof is then made good. Battens and felt are pieced in, tiles are relaid around the gap and the ridge is bedded back, matching the existing clay or concrete as closely as we can source it. Scaffolding is needed for that work, so it goes up before the internal demolition starts and comes down once the covering is watertight again. If the section in the loft is coming out too, doing both under the same scaffold saves a second visit and a second set of hire charges.
- Chimney breast removal on one floor or on every floor
- Soot and debris contained with screens and sheeting
- Building control notification and inspection sign-off
- Rubble bagged and carried out rather than dropped inside
- Loft inspection of the retained stack before work starts
Why Bexley Homeowners Choose GS Renovation
Bexley homeowners choose GS Renovation because we treat chimney breast removal as the structural job it is. You get an engineer-designed support solution, gallows brackets or a beam fixed into the party wall and Bexley Council building control handled, tidy working in an occupied semi, and a certified finish, backed by 30+ years locally.
- Steel beam support used where gallows brackets are not suitable
- Building control applications and inspections coordinated for you
- Neighbours spoken to early when the stack is shared
- A written scope and programme agreed before work starts
- Party Wall Act notices served for stacks in a shared wall
- One point of contact on the phone, not a call centre