Every home sold in Scotland comes with a Home Report, and buyers reasonably assume the single-survey section tells them whether the roof is sound. It does not, and the report itself says so. The surveyor is carrying out a visual inspection, usually from ground level, often with binoculars, without access to the roof surface, without moving furniture, and without lifting insulation in the loft.
What the Home Report can and cannot see
From the ground, a surveyor can see the general form of the roof, obvious sagging, and slipped slates on the elevations they can stand back from. They usually cannot see the rear pitch of a terraced property, the valleys, the condition of the ridge bedding, the state of chimney flashings, the inside of the gutters, or anything at all on a flat roof above head height.
That is why so many Home Reports carry a category 2 or category 3 comment worded as 'further investigation by a suitably qualified roofing contractor is recommended'. That sentence is not a defect finding. It is a gap in the evidence, handed to you.
Why that gap costs buyers money
- You cannot price a repair you have not seen, so you cannot adjust your offer with any confidence.
- In a competitive Scottish market, buyers often waive the concern rather than lose the property.
- A roofer invited to 'have a look' before purchase is quoting on a house they may end up working on — the incentives are not neutral.
- The seller has no obligation to investigate on your behalf.
- Once you have concluded missives, the roof is entirely your problem.
What a pre-purchase drone survey adds
A drone flight photographs every pitch, the ridge, the hips and valleys, the chimney heads and flashings, the gutter line and any flat roof sections, from directly above. Each defect is circled on the photograph, described in plain English and graded for severity, so you can separate 'needs doing this year' from 'monitor it'.
You then have three practical options: proceed with confidence, use the report to negotiate on price with a real repair figure behind it, or walk away before you have spent anything on legal fees. All three are better than guessing.
Timing and access
The practical constraint is permission. You need the seller's or agent's agreement to fly over the property, which in our experience is usually given when it is framed as a serious buyer completing due diligence — and a seller with a sound roof has every reason to say yes. Arrange it alongside your viewing, before you conclude missives.
Flights are weather-dependent, so allow a few days. We survey across Glasgow, Lanarkshire, Edinburgh, Falkirk, Stirling and Paisley at a fixed £99 for residential property, with the report back within 24 hours. It is your report — take it to your solicitor, your mortgage lender or any roofer you choose.
One last point for sellers
The same logic works in reverse. If your Home Report flags the roof for further investigation, a survey that shows the roof is sound removes a negotiating lever from every buyer who walks through the door. It is a cheap way to defend your asking price.