Hertfordshire is home to some of the country’s most historically significant planned towns, from Letchworth and Welwyn Garden City’s early twentieth-century garden city developments to Stevenage, Hatfield and Hemel Hempstead’s post-war New Towns. Much of this building stock now sits at an age where refurbishment, extension and structural assessment work is increasingly common, and ferro scanning plays a key role in that process.

Stevenage in particular was constructed extensively in concrete during its rapid development from 1946 onwards, reflecting the modernist design approach of its post-war planners. As these buildings reach 70 to 80 years old, many are now undergoing refurbishment, extension or partial demolition, work that requires knowing exactly where reinforcement sits within the concrete before any cutting, drilling or coring begins.

Letchworth and Welwyn Garden City, England’s first garden cities, combine early twentieth-century construction with later infill and extension built in more modern reinforced concrete. This mix means ferro scanning work across these towns often needs to account for buildings from genuinely different eras and construction standards sitting close together, sometimes on the same street or even within the same building following later extension work.

As Hertfordshire’s New Towns and garden cities continue to be refurbished, adapted and redeveloped to meet current needs, understanding what’s within the existing concrete, reinforcement position, cover depth and condition, is an increasingly common requirement before structural work can proceed safely.

Subvision Surveys is SSIP and ISO accredited, with a team of over 25 surveying professionals delivering ferro scanning surveys across Hertfordshire and the wider South East. Contact Subvision Surveys today to discuss a ferro scanning survey in Hertfordshire or Kent, or speak to one of our experts on 0333 920 942.