Damp Removal — Sheffield

Project Overview

British Builders completed damp removal and internal wall repair works at a property on Duncan Road, Sheffield. The works focused on areas around the window reveal, internal wall surfaces and ventilation terminal where peeling plaster, salt contamination and visible damp damage had affected the finish.

The photos show damaged and flaking plaster around the window area, localised staining, an incorrect internal terminal opening, and the repaired surfaces after preparation and finishing. Although the damp was concentrated in specific sections, the repair required careful removal of affected plaster, damp protection, salt barrier installation, plaster finishing and correction of the ventilation terminal.

Scope of Work

• Inspected the affected internal areas showing damp, salt contamination and failed plaster.
• Removed damaged and salt-contaminated plaster from all identified areas.
• Prepared the wall and window reveal surfaces for damp treatment and reinstatement.
• Installed a Sentinel Combination System to improve resistance against penetrating damp.
• Applied a tanking membrane to the affected areas as part of the damp protection system.
• Installed a salt screen barrier to help prevent salt migration into the new plaster finish.
• Fixed the system using suitable non-ferrous fixings.
• Completed plaster skim finishing to restore the wall surfaces.
• Removed the incorrect gravity flap terminal and replaced it with a suitable terminal for proper vapour movement.
• Cleared and disposed of waste materials from the work area.

Challenges & Solutions

• The plaster around the window reveal had failed due to damp and salt contamination — affected material was removed before installing a protective barrier system.
• The damp issue required more than surface decoration — a tanking membrane and salt screen barrier were used before plaster finishing.
• The existing internal terminal was not suitable for proper vapour movement — it was removed and replaced with an appropriate ventilation terminal.
• The repair needed to blend with the surrounding room finish — surfaces were skimmed and finished neatly after treatment.

Final Outcome

The damp affected plaster was removed and the internal wall areas were treated with a suitable damp protection system before being skimmed and finished. The corrected ventilation terminal now supports better vapour movement and proper PDH function.

The repaired areas around the window and wall surfaces were left cleaner, more stable and ready for long-term use. All waste materials were removed from the property, and the work area was left clean and tidy on completion.

Client Feedback

“The damp damaged areas were repaired carefully, and the finish around the window looks much cleaner now.” – Client