|Location:||Northolt, London Borough of Ealing|
|Approved Installer:||Structural Renovations Ltd|
Built in the 1970's with brick / block cavity wall construction, two separate three storey blocks of six privately owned flats per floor were suffering from widespread subsidence caused by tree roots and desiccated clay soils. This had caused significant internal and external cracking of a stepped, tapering nature affecting both blocks on all storeys and elevations, predominantly around window openings. Two flats were so badly damaged they were no longer habitable and the occupants of all 12 ground floor flats had to be moved out while repair works were undertaken.
Helifix carried out structural repair work to all cracked external walls. In addition, other contractors undertook some localised rebuilding together with major underpinning, which involved removal of ground floor slabs, underpinning external and internal walls with augured piles and casting new cantilevered reinforced concrete beams and slabs.
The Helifix repairs, in conjunction with the underpinning, stabilised the properties, secured the masonry and restored structural integrity. Click here to download the case study.