Thorngate Mill

Having won a competitive tender, Hodgson Sayers was appointed to undertake a full renewal of slated roof finishes and insulation to Thorngate Mill, Barnard Castle.

Once a cloth mill, built in the 19th century, the grade II listed building is now home to 12 luxury apartments.

Hodgson Sayers worked closely with the project surveyor, Anna Williams Associates, Chartered Building Surveyors, Kendal. The client was Thorngate Mill Management Ltd, with Town and City Management Ltd acting as managing agents.

The work took place over a 16-week period and was led by contracts manager, Dave Wakenshaw and site managers, Chris Tweddle and Tom Kindly. A team of six operatives worked on the project.


  • The property was fully scaffolded and tented to allow working in all weather conditions, with the proximity of the river presenting additional challenges.
  • Full reslating was required, the original badly weathered Welsh slates were replaced with new Penrhyn Welsh blue slates.
  • Insulation was upgraded to comply with building regulations, which also required raising the roof finish over counter battens to ensure adequate ventilation.
  • The original sandstone slates at eaves level were removed, stored and reinstated, with some replacement slates sourced from specialist suppliers on a like-for-like basis.
  • New lead gutter details were introduced to the gable parapet walls to accommodate the raised roof level.
  • Prior to the works commencing, the team met with residents to inform them about the work that would be taking place and close liaison was maintained throughout the project.

 Customer feedback

Anna Williams Associates worked closely with the team at Hodgson Sayers to ensure the project was delivered to an excellent standard.