Missing flashing at a chimney abutment
A gap in the weathering detail corresponded with the area below which minor water ingress had been observed in the loft. The report recommended installing suitable flashing and making good.
Anonymised residential case study · Bristol
Finding the likely route of roof water ingress.
A systematic drone roof condition survey turned hard-to-reach details into a clear evidence record and prioritised maintenance plan for a mid-terrace home.
2roof areas
17labelled photographs
11recorded observations
The brief
Investigate the roof without access equipment.
The client wanted an independent visual record of the roof covering, chimneys, parapets, flashings, gutters and abutments, with particular attention to a suspected route of water ingress visible from the loft.
A drone was used to inspect the front and rear pitches from multiple angles. The final report organised every observation by roof area, referenced it to labelled photography and separated condition from repair urgency.
Privacy: the property address, client names, contact details, survey date, report reference and aviation licence identifiers have been withheld. Images have been cropped and stripped of embedded metadata.
What the survey found
Good overall condition, with one priority defect.
The roof covering and most flashings were in generally good visible condition. The survey still identified a localised detail that justified prompt attention and several routine maintenance items.
Chimney brickwork
Minor brick spalling was recorded. Repointing with a suitable lime-based mortar was recommended.
Render and vegetation
Local cracking and vegetation growth were identified for repair, removal and making good.
Roof debris
Debris had accumulated on the rear pitch. Gentle cleaning was recommended during planned maintenance.
Evidence-led reporting
Each recommendation was tied to a visible observation.
The high-resolution imagery allowed individual roof junctions to be reviewed and recorded without walking on the roof. Findings were graded and given a practical priority, helping the client distinguish urgent investigation from routine upkeep.
Immediate focusMake the defective flashing detail weather-tight and check the associated ingress area.
Further investigationConfirm the weathering detail at a partially exposed rear abutment.
Planned maintenanceRepoint local brickwork, repair minor render cracks, remove vegetation and clear debris.
The result
A practical schedule—not just a folder of photographs.
The client received a concise condition summary, an observation schedule, 17 labelled images and a prioritised recommendation section. The report gave them a clear basis for discussing targeted repairs with a roofing contractor.
Why this mattered
The drone survey avoided assumptions based on a ground-level view. It documented the likely defect, recorded the wider roof condition and reduced the risk of commissioning broad repair work without clear evidence.
This was a non-invasive visual inspection of elements visible from the drone imagery. Concealed construction, structural performance and watertightness testing were outside the survey scope.
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