Documenting the Victorian Society’s Top Ten Endangered Buildings 2026
Constantine Callaghan Constantine Callaghan

Documenting the Victorian Society’s Top Ten Endangered Buildings 2026

CAV Aerial was commissioned by the Victorian Society to help document several buildings featured in their Top Ten Endangered Buildings 2026 campaign. Travelling across England and Wales, the project involved aerial documentation of historic buildings and industrial structures facing severe deterioration, roof collapse and long-term neglect, including the Tees Transporter Bridge and Hackney Borough Disinfecting Station.

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Drone Roof Survey of Hornsey Parish Church, Muswell Hill
Constantine Callaghan Constantine Callaghan

Drone Roof Survey of Hornsey Parish Church, Muswell Hill

A drone roof survey of Hornsey Parish Church in Muswell Hill, carried out in collaboration with a local architecture practice. High-resolution imagery helped identify vegetation growth and provided clear visual evidence to support targeted maintenance planning.

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Thermal Imaging for Commercial Property Inspections in London
Constantine Callaghan Constantine Callaghan

Thermal Imaging for Commercial Property Inspections in London

Thermal imaging is a powerful, non-invasive tool for investigating hidden issues within commercial buildings. In this London inspection, a FLIR thermal camera was used to compare stable background temperatures with localised anomalies beneath a roof garden, helping surveyors better understand conditions behind walls and ceilings without intrusive works.

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Five Historic Churches We Worked Around in 2025
Constantine Callaghan Constantine Callaghan

Five Historic Churches We Worked Around in 2025

In 2025, we worked with a range of historic churches across England, producing aerial documentation to support conservation, interpretation and long-term care. From early medieval chapels to later parish churches, each site offered a different perspective on England’s built heritage.

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Five Heritage Sites We Surveyed in 2025 – A Year in Conservation from Above
Constantine Callaghan Constantine Callaghan

Five Heritage Sites We Surveyed in 2025 – A Year in Conservation from Above

In 2025 we were fortunate to survey five remarkable heritage sites across London, from Tudor towers to historic gardens and Victorian landmarks. These aerial inspections supported conservation teams with high-resolution imagery, condition insights and accessible documentation that would be difficult to achieve from the ground.

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Client Feedback: We saved a client thousands by detecting a roof leak
Constantine Callaghan Constantine Callaghan

Client Feedback: We saved a client thousands by detecting a roof leak

We were called by a block manager in South West London to investigate a possible roof leak. Using our drone, we quickly identified signs of staining and blocked gutters, without any need for ladders or scaffolding. By comparing both sides of the roof, we pinpointed the likely source of the problem and provided clear images for repair planning. If you need something on your roof looked at, we can carry out a quick, affordable, and non-intrusive drone inspection anywhere in London.

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Preserving the Past from Above: A Drone Roof Survey of The Blue Idol Meeting House
Constantine Callaghan Constantine Callaghan

Preserving the Past from Above: A Drone Roof Survey of The Blue Idol Meeting House

The Blue Idol Quaker Meeting House in West Sussex is one of the region’s most significant early buildings, with origins stretching back to the 15th century and historic links to William Penn. Nestled in the rural landscape near Coolham, its distinctive Horsham stone roof is both beautiful and fragile — making careful conservation essential. Our recent drone survey identified cracked stones, slipped tiles, vegetation growth and blocked gutters, providing the trustees with a 4K flyover and a traffic-light condition report to prioritise repairs while preserving this remarkable heritage site.

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