New builds and warranties
The developer has closed the snagging app and your survey still lists incomplete flashings. Why does a closed app not close the survey?
A closed app does not close the survey because the app is the developer's list and the survey is your condition report. Incomplete flashings stay listed until the report is changed or the flashings are actually seen to be complete. Closing a screen on the developer's system ticks their process. It does not delete a surveyor's note, and it does not prove the lead or the felt was finished. NHBC describes Buildmark as a 10-year warranty and insurance product. The survey has not opened a claim, and the developer closing an app has not opened one either.
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?
Snagging apps are how many developers collect and then close items they accept as snags. A closure can mean they think the item is done, or that they have refused it, or simply that the window for logging has shut. None of those meanings reinspects the flashings. Your survey listed them as incomplete. That finding stands on the inspection. If the developer has since finished the work, someone needs to look again. A tick in an app is not that look, and it is not a Buildmark decision.
Send the survey's incomplete-flashing note to the solicitor and, if you choose, to the developer, and say the app closure has not cleared it. Ask for the flashings to be finished and for the policy that applies. NHBC describes Buildmark as a 10-year warranty and insurance product. The survey does not open a claim by keeping the item on the page. If you want the report updated after a repair, that is a further inspection, not an automatic effect of the app.
What should you ask your surveyor?
- Which flashings are still listed as incomplete?
- Does a closed snagging app leave your findings unchanged?
- Have you opened no warranty claim by listing those flashings?
What are the typical next steps?
- Keep the incomplete flashings as survey findings.
- Tell the developer a closed app has not finished the work.
- Ask the solicitor which warranty applies, separately from the app.
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 developer photographed the roof, is the flashing complete?
A photograph in an app is the developer's picture, not a reinspection by the surveyor. The survey still lists the flashings as incomplete. Unless the report is revised after someone looks, the list stands. NHBC describes Buildmark as a 10-year warranty and insurance product. Neither the photo nor the survey has opened a claim.
Does closing the app end the defects period?
No. Closing a snagging app ends that logging process, or claims to. It does not calculate a defects-period end date, and the survey has not done that either. Timing sits in the contract and the warranty. NHBC describes Buildmark as a 10-year warranty and insurance product. The survey has not opened a claim. Incomplete flashings remain a condition note.