Chimney Flue Surveys

Chimney Flue Surveys 

For over 500 years we’ve been heating our properties using fire and today the iconic fireplace is a much loved design feature of many of our homes. Designed to draw air from the fire, chimney flues have been constructed with a bend to control the fire, allowing plenty of space to accommodate flues from other rooms on different floors as well as flues of neighbouring properties within the wall. For larger properties with several floors and in particular those in a terrace house with party walls, the location and position of chimney flues are often complex, unknown and undocumented.

Understanding the location, position and depth of chimney flues in a property is critical for property owners when reinstating, restoring and maintaining a chimney flue, likewise this information is vital for designers, architects and construction companies in helping understand the potential risks when redesigning and renovating a property.

Chimney flue survey

Chimney flue survey

  • Design – For architects and designers, understanding the location, depth and features of a chimney flue will allow them to identify potential risks and verify the feasibility and of knocking down walls and connecting rooms or different properties, making the design process much more effective and practical. to reflect evolving needs and open plan layouts


  • Construction – For those undertaking construction work such as drilling or hammering, a chimney flue map will help prevent any potential damage to the flue that might cause potential toxic gas to escape.


  • Compliance – Understanding the location of neighbouring chimney flues will help prevent damage to other properties.


  • Reinstating, restoration and maintenance – Knowing exactly where a flue is located is critical for the regular maintenance and restoration of fireplaces, understanding access points and the impact of any potential structural issues.

Whether you’re a property owner looking reinstate and restore a fireplace, or an architect or construction company looking to renovate and redesign a property home, we offer detailed and accurate chimney flue maps.

Ground Penetrating Radar 

We use GPR technology to non-intrusively and non-destructively scan walls and locate the flues, documenting the shape, depth and other special features. GPR works by sending an electromagnetic signal into the subsurface, the signal is then reflected off changes in material properties, allowing us to collect data without any need to manually interrogate or damage the wall. We only need to scan on one side of the wall so access to neighbouring properties is not required, likewise the survey can be conducted in an occupied or unoccupied building. The data is post processed by a qualified and experienced analyst and a detailed report is generated.

  • No costly damage to the building – with non-intrusive and non-destructive technology
  • Flexibility – the survey can be conducted in an occupied or unoccupied building
  • Fast and quiet data collection – minimal disruption to the building occupants
  • Chimney flue maps can be generated in a variety of formats including CAD and BIM

Chimney Flue Survey example

For more information please contact:

Andy Kitson
Subsurface Mapping specialist
0203 598 3775