Wall ties and cavity insulation
Cavity-insulation beads have spilled into the meter cupboard. Has the survey certified the fill, or only recorded the beads it could see?
Only the beads it could see. Cavity-insulation beads spilled into the meter cupboard have been recorded as beads in that cupboard. The survey has not certified the fill. It has not looked through the whole cavity, checked that the fill is complete, or confirmed a guarantee. Spilled beads show that material has left the cavity at this opening. They do not map the insulation, and they do not pass or fail it. Certification of a cavity fill is a different product from a home survey note of what had spilled.
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?
Beads are loose fill. At a hole in the inner leaf, such as the back of a meter cupboard, they can run out if the cavity was not closed off. The pile tells you the material and the place it escaped. It does not tell you whether the rest of the wall is full, settled, bridged to the inner leaf, or empty. A home survey does not core the wall or sign a fill certificate. The honest line is the spill that was visible, and nothing wider.
Ask the surveyor how much had spilled and whether the cavity was open at the back of the cupboard. Put any guarantee or installer's paper, if the seller has it, with the solicitor, and read what address and which walls it names. Do not tell a lender the survey certified the insulation. If you need the fill checked, that is a separate look into the cavity, not a rewrite of the beads on the cupboard floor.
What should you ask your surveyor?
- Did you only record the beads that had spilled into the cupboard?
- Did you inspect or certify the cavity fill itself?
- Was the back of the cupboard open to the cavity?
What are the typical next steps?
- Record the spilled beads as what the survey could see.
- Do not treat that spill as a certificate for the fill.
- Read any guarantee separately and see which walls it names.
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 the cupboard is full of beads, has the cavity emptied?
The survey cannot say that. A full cupboard shows a spill at one opening. It does not measure what remains in the cavity, and the visit did not certify the fill either way. The survey stops at the spilled beads and does not add any further conclusion.
Do beads on the floor mean the insulation is the wrong type?
Not by themselves. They show beads have escaped. The survey did not identify a specification, and it did not certify the fill. The type, if it matters, is a question for the papers or a later inspection. Nothing in this visit settles the spilled beads beyond the lines already set out.