Client Details: The Works Offices, Ebbw Vale
Cadw, Gee Construction & Blaenau Gwent County Borough Council

Project: To clean internal structures and surfaces under governance of Cadw Welsh Heritage Authority

The Project
The building was a prestigious grand building and main offices of the former Corus Steel Works located in Ebbw Vale in the county borough of Blaenau Gwent. The internal building had suffered severe neglect over the years, and a plan was in place to restore the property to its former glory as a ‘Show Case’ for the new £350 Million site redevelopment.

The Welsh Conservation Authority Cadw grant funded part the work as it is a Grade II listed structure. There were several conditions and many restrictive practices in place to preserve the building.

It was imperative that a dry solution restoration programme was used for all internal work, as the building fabric had suffered serious water ingress with the client spending several months and huge costs in drying out the structure.

The lime mortar was removed from many of the rendered walls to allow the surfaces to dry out and several were earmarked as feature walls with the soda blasting as the chosen process.

The process chosen had to be sensitive to the substrate material and environmentally sound.

APT’s Task

  • To clean and restore the internal surfaces which were deeply ingrained with years of pollutants, grime and limescale.
  • The stone and brickwork were heavily stained with build-up and brick salts formed on most of the surfaces.
  • The mosaic floor tiles had been covered in latex cement.
  • The main terrazzo floor needed cleaning, renovating and re-polishing.
  • The ceilings had layers of old and flaking paint on them, the plaster work was damaged in certain areas.
  • The oak doors had several layers of varnish coatings.
  • The glazed wall tiles and grout throughout needed cleaning to remove various coatings (bitumen, adhesives & rust marks).
  • The steel safe doors and the visual ceiling supports had paint flaking off and rust residue on them which required stripping.

The Result
The result was outstanding and a real transformation of the building. The clients were delighted and host many functions and events at this prestigious site.

Soda Blasting was used throughout the project as it was the only solution which covered all areas of the cleaning and restoration project without using water or hazardous chemicals, therefore being sensitive to the substrate.

APT Soda Blast Systems had previously been approved for use by the Cadw’s Senior Conservation Team for use on all historical projects and monuments, thus making the choice for APT and Soda Blasting easier.

The other major benefit was having one operation and only one company to carry out the task, making management on the site a lot easier.

Client Testimonial
“We employed the services of APT to renovate a Grade 2 Listed Building. Under the directive of Cadw we were not allowed to use any wet process or chemicals within the interior of the building. APT used Soda Blasting on sandstone, brick, ceramic glazed tiles, metal work, paintwork on ceilings, coving, woodwork and ornate fixtures. It was a great achievement to have one system for all the surfaces that needed cleaning and restoring and one that also ticked all the boxes of the environmental and conservation officers. The process saved us both time & money in being able to have just one company on site. We are very grateful to APT for their hard work on this project.”

Tim Luke,
Gee Construction


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