Non-standard construction
A brick slip is detaching beside a window on a framed building. Why is that a slip, not evidence the whole brick wall is solid?
Not a solid brick wall. A brick slip detaching beside a window on a framed building is a slip, not evidence that the whole wall is solid brick. A slip is a thin facing, fixed to a frame or panel. It is not a full brick in a solid wall. One slip letting go tells you about that facing and its fixing at that window. It does not prove there is a thick brick wall behind it, and it does not prove the frame has failed. Call it a slip. Do not redraw the building as solid brick because the face looks like brick.
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?
Framed buildings often wear a brick-looking skin that is only the thickness of the slip. At a window the edge is where fixings, adhesive, or movement show first. Detachment there is a cladding defect on a frame. A solid brick wall would be a different construction, with a different thickness and a different repair. The survey should say framed construction with slips if that is what the edge shows. It should not slide into solid-wall language because the surface is brick-coloured.
Non-standard or unfamiliar construction is a Level 3 conversation if you still need to understand how the wall is built. That conversation is about describing the frame and the slip system. It is not a licence to call the wall solid, and it is not a finding that every slip on the building is loose. Note the one that is detaching, where it sits, and what was visible of the frame at the reveal. Leave the rest unclaimed unless it was seen.
What should you ask your surveyor?
- What at the window reveal shows this is a slip on a frame?
- Did you see a solid brick thickness, or only the facing letting go?
- Which other slips did you actually check, as against this one?
What are the typical next steps?
- Describe the defect as a detaching slip on a framed wall.
- Do not report the wall as solid brick from that slip.
- Ask how the frame and the facing are built if that is still unclear.
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
If it looks like brick, can you treat the wall as solid?
No. A slip is a thin facing. Detachment beside the window is not evidence the whole wall is solid brick, and it does not thicken the wall.
Does one loose slip mean the frame has failed?
No. It means that slip is detaching. The frame needs its own evidence, which one loose facing does not supply on a framed building.