New builds and warranties
A structural warranty is in place. Why is that policy not a Level 3 description of the roof you can see ponding?
Because a structural warranty is a policy, not a Level 3 description of the roof you can see ponding. The policy may matter to a claim later. It does not walk the roof, record the ponding, or give you the condition advice a Level 3 inspection gives. NHBC describes Buildmark, where that is the product, as a 10-year warranty and insurance product. That description is still not a Level 3 survey. The ponding needs the survey's words.
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?
Ponding is something a person sees on a covering: water sitting, outlets that do not clear, a fall that looks wrong. A warranty document does not contain that visit. It sets out cover in its own language, which you should read rather than imagine. Even where the policy is NHBC Buildmark, NHBC's account of it is warranty and insurance, not a room-by-room condition report. Do not tell yourself the roof has been described because a policy number exists.
If you want the Level 3, instruct the Level 3 and let it say what it could see of the ponding and what it could not. Keep the warranty in the solicitor's file as a policy. If a defect might later be notified under that policy, the notification is a claim step, not a sentence the survey has already enforced. The inspection and the insurance product answer different questions. The standing water is a condition fact either way.
What should you ask your surveyor?
- What did you see of the ponding, and from where?
- Are you describing the roof, rather than certifying a warranty?
- What could you not see of the covering or the outlets?
What are the typical next steps?
- Do not treat the structural warranty as a Level 3 report.
- Read the ponding in the survey, and the policy in the policy.
- Do not tell the lender the warranty has already described the roof.
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 warranty is Buildmark, has NHBC done the Level 3?
No. NHBC describes Buildmark as a 10-year warranty and insurance product. That is not a Level 3 inspection, and it does not describe the ponding for you.
If the ponding is shallow, can the policy replace the visit?
No. Depth does not turn a policy into an inspection. The survey, not the warranty, is what records the roof that was seen.