KHIA headerKnow-How in Action


Belzona® Restores Grade 2 Listed Building



Local Authorities & Municipalities (LOMU)



Wall Problem Areas (WPA)


Customer Location:

Local Authority,Cambridgeshire, UK


Application Date:

September 2013


Application Situation:

Sandstone window frames and roof edges on a cemetery lodge building (built circa 1912).



The sandstone window frames and roof edges were corroded and cracked due to many years of weather damage



Belzona® 4141 (Magma Build)





Application Method:

Application was carried in accordance with Belzona Know-How System Leaflets WPA-4 and WPA-6. After removing the areas of weathered and broken sandstone, Belzona® 4141 Magma Build was then used to rebuild the sandstone back to the original profile.


Belzona Facts:

During a major refurbishment of this Grade 2 Listed Building, the main contractor started repairing the sandstone on the window frames with cement based products. The Local Authority was not happy with the quality or colour matching of these cement repairs so they told the contractor to use Belzona 4141 for the rest of the project following several other local projects recently completed for them with Belzona 4141. The stone coloured belzona 4141 provides a very close match colour and texture wise to natural sandstone.  


Photographs Description

  1. Sandstone window frames before being repaired
  2. Areas of broken stone removed
  3. Belzona® 4911 TX conditioner being appplied to prepared areas
  4. Areas rebuilt with Belzona® 4141 (stone colour)
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


For more information about Belzona visit: