• Timber Frame
  • Offsite timber solutions
  • Floor Cassettes


  • Thomas Armstrong (Timber)
  • Workington Road
  • Flimby
  • Maryport
  • Cumbria
  • CA15 8RY
  • United Kingdom
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Thomas Armstrong (Timber)

The Thomas Armstrong group was established in 1830. We have over 180 years of expertise and growth in construction services and building products manufacturing.

We supply a comprehensive range of very high quality engineered timber products including Timber frame structures, Trussed rafters, Metal web joists, I-Joists, Cassette floors and Spandrel panels.

Our longevity and success has always been because of our focus on Quality. We’re proud to have a reputation for consistently delivering a top quality product with professional service. To support this focus we achieve various quality, environmental and safety certifications: ISO 9001, PEFC, CE, and CHAS.

We have our own in house design team and modern production equipment which is capable of meeting any customer need from those of self-builders to national house builders.

Accreditations & Affiliations

  • CE Mark Product
  • In House Quality Procedures
  • PEFC
  • Site Safe
  • STA Template for Quality Assessment of Manufactured Assemblies
  • Structural Timber Design Knowledge