Chimneys and parapets
The floor falls toward the place a chimney breast was removed. Have the joists been proved to be resupported?
No. The joists have not been proved to be resupported. A floor that falls toward the place a chimney breast was removed shows a slope at that line. It does not show a beam, a hanger or a calculation holding the joist ends that used to bear on the breast. The survey recorded the fall and the missing breast. It has not opened the floor, and it has not decided the joists are properly supported.
Last reviewed 24 October 2026. Written for buyers in England and Wales unless this answer says otherwise. No named surveyor has signed this page. It is general guidance, not a report on your house, and not legal advice.
What is the fuller explanation?
Removing a chimney breast takes away a wall that floors often used as a bearing. A proper replacement is a designed support, recorded in papers or visible as a beam and its bearings. A slope towards the gap is a warning that the support should be demonstrated, not a measurement of that support. The survey can see the fall from the room. It cannot see ends of joists buried in the floor, and it did not pretend to. The proof is missing.
Ask the solicitor for any building-regulations approval, engineer's design or invoice description that names how the breast was supported after removal. The survey does not supply that design. A structural engineer can assess the opening if you instruct one. Do not tell a lender the joists were proved safe because the house is occupied. Occupation is not a calculation. The fall remains unexplained by any support this visit could confirm.
What should you ask your surveyor?
- Was the fall recorded without a visible replacement beam?
- Did the visit avoid opening the floor at the old breast?
- Are support papers missing from what the survey saw?
What are the typical next steps?
- Treat resupport of the joists as unproved.
- Ask the solicitor for any design or approval for the removed breast.
- Do not describe occupation of the room as structural proof.
Costs vary with the building and with who you instruct. Where this page does not cite a published figure, ask the surveyor, a relevant specialist, or your solicitor for a written quote. Do not treat a forum average as the price.
Also asked about this
Could the slope have a cause other than the missing breast?
Yes. Deflection, an original construction slope or movement elsewhere can also drop a floor. The survey noted the fall toward the old breast and did not prove a cause. Nearness is the observation. It is not a calculation, and it is not proof that joists are, or are not, resupported.
Does a boxed-in bulkhead count as the missing proof?
Only as something seen, not as a design. A boxed bulkhead may hide a beam or may hide nothing useful. The survey did not open it and did not read a calculation. Describe the boxing if it was there. Do not promote it into proved resupport of the joist ends.