Why Every Grade I and Grade II Listed Building Needs an ‘MOT Check’ Before Winter

When cold, wet weather sets in, small defects in historic roofs and stonework can turn into serious—and expensive—damage.

Just as a car needs its annual MOT, heritage buildings benefit from a pre-winter condition check. Today, drone technology makes this faster, safer and more thorough than ever.

1. Spot problems invisible from the ground

Using high-resolution aerial photography, drones can reveal cracked tiles, loose flashing, eroded stonework and blocked gutters—issues that are easy to miss from street level but can lead to leaks, damp and timber decay.

2. Inspect delicate or inaccessible features

Many listed churches and historic houses have fragile domes, spires, cupolas and parapets.
3D photogrammetry allows us to record every angle without scaffolding, providing a precise visual record for architects and conservation officers.

3. Detect hidden moisture and heat loss

With thermal imaging, drones highlight areas of trapped moisture, failing insulation or heat loss.
Catching these weak spots early can prevent freeze–thaw damage and help reduce heating costs over the winter.

4. Provide evidence for grants and insurance

Our surveys produce organised, shareable image folders and 3D models that satisfy conservation planners, funding bodies and insurers.
Clear documentation can speed up funding applications and simplify future claims if storm damage occurs.

5. Save money and disruption

An aerial MOT check typically takes a few hours and avoids the need for costly scaffolding or cherry pickers.
By identifying issues before winter, property managers can carry out targeted repairs—preventing expensive emergency work when conditions worsen.

Protect your heritage asset before the cold sets in.

CAV Aerial provides GVC-certified drone inspections for Grade I and Grade II listed buildings across the UK.
Book your pre-winter drone survey today and keep your building safe, dry and structurally sound all season.