Non-standard construction
The bungalow is a concrete block house in Cornwall and no mundic screen is attached. Has the home survey carried out that screening test?
No. The home survey has not carried out a mundic screening test. The bungalow is described as a concrete block house in Cornwall, and no mundic screen is attached to the report. Screening of that kind is a specialist test of the concrete. It is not performed by looking at blockwork on a normal inspection. The survey can record the construction it believes it saw. It has not sampled the blocks, and it has not produced the screen that is missing from the pack.
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?
Mundic is a known concern with some concrete in Cornwall and nearby, which is why lenders and buyers ask for a screen on certain houses. The name of the county and the words concrete block do not complete that test. A screen, where it is commissioned, is a separate report with its own sampling. Until that paper exists, the home survey's sentence is only that the house appears to be concrete block and that no screen was provided. Do not upgrade appearance into a result.
Ask the solicitor and the lender what, if anything, they require by way of a mundic screen for this bungalow, and whether one has ever been done. If you commission it, the sampler takes the material. The surveyor does not retrospectively create it by reissuing the home survey. Keep the missing screen as a missing document. Do not let a forum, or the Cornish address alone, stand in for the test the pack does not contain.
What should you ask your surveyor?
- Did you describe concrete block construction without carrying out a mundic screen?
- Is any screening report attached, or is the pack silent?
- What sentence should not be read as a mundic result?
What are the typical next steps?
- Treat the absent mundic screen as a test not done.
- Do not read the Cornish concrete-block note as that screen.
- Ask whether a lender wants a separate screening report.
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 blocks look dense and sound, is the screen unnecessary?
Not on looks alone. Dense-looking blocks were not sampled. The home survey has still not carried out a mundic screen, and appearance is not a substitute for that test on this bungalow, and none is attached. The pack still has no screen.
Does a newer extension clear the original bungalow?
No. A newer wing is a different piece of building. It does not screen the original concrete blockwork, and the survey has not tested either part for mundic or produced the missing screen. Both parts remain unscreened by this visit.