Certificates - George Barnsdale
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  • Timber Windows & Doors

    Timber Windows

    • Sliding Sash Windows
    • Casement Windows
    • Bay Windows
    • Tilt & Turn Windows
    • Pivot Windows
    • Yorkshire Sash Windows

    Timber Doors

    • Single Doors
    • Entrance Doors
    • Stable Doors
    • Contemporary Doors

    Timber Patio Doors

    • French Doors
    • Sliding Doors
    • Bifold Doors
    • Tilt and Sliding Doors

    Product Range

    • Traditional
    • Historic
    • Contemporary

    Design & Options

    • Colours & Coatings
    • Windows & Doors Furniture
    • Glazing options
    • Profiles & Detail
  • For Professionals

    For Professionals

    • Our process
    • Contract Projects
    • Architects
    • Keeping Architectural Heritage Alive
    • Become an Approved Installer
    Promo Image

    Download Our Brochure

    Want to find out more about the range of customisation options available for your traditional, historical, or contemporary home? Download our Technical Specification brochure for information about what design, layout, hardware, and profiles are available for your project.

    Download
  • For Homeowners

    For Homeowners

    • Approved Partners
    Promo Image

    Download Our Brochure

    Want to find out more about the range of customisation options available for your traditional, historical, or contemporary home? Download our Technical Specification brochure for information about what design, layout, hardware, and profiles are available for your project.

    Download
  • Resources

    Technical Support

    • CPD Hub
    • Resource Centre
    • Tech Talk
    • NBS Specification
    • Technical Specification
    • Manuals
    • Guarantees
    • Certificates
    • FAQs

    Inspiration

    • Case Studies
    • Blog
    • Brochures
    Promo Image

    Download Our Brochure

    Want to find out more about the range of customisation options available for your traditional, historical, or contemporary home? Download our Technical Specification brochure for information about what design, layout, hardware, and profiles are available for your project.

    Download
  • About Us

    About Us

    • Our story
    • How we manufacture
    • Accreditations
    • News
    • Research & development
    • Sustainability
    • Sourcing our timber
    • Careers
    Promo Image

    Download Our Brochure

    Want to find out more about the range of customisation options available for your traditional, historical, or contemporary home? Download our Technical Specification brochure for information about what design, layout, hardware, and profiles are available for your project.

    Download
  • Contact Us

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logo
  • Timber Windows & Doors
    • Timber Windows
      • Sliding Sash Windows
      • Casement Windows
      • Bay Windows
      • Tilt & Turn Windows
      • Pivot Windows
      • Yorkshire Sash Windows
    • Timber Doors
      • Single Doors
      • Entrance Doors
      • Stable Doors
      • Contemporary Doors
    • Timber Patio Doors
      • French Doors
      • Sliding Doors
      • Bifold Doors
      • Tilt and Sliding Doors
    • Product Range
      • Traditional
      • Historic
      • Contemporary
    • Design & Options
      • Colours & Coatings
      • Windows & Doors Furniture
      • Glazing options
      • Profiles & Detail
  • For Professionals
    • For Professionals
      • Our process
      • Contract Projects
      • Architects
      • Keeping Architectural Heritage Alive
      • Become an Approved Installer
  • For Homeowners
    • For Homeowners
      • Approved Partners
  • Resources
    • Technical Support
      • CPD Hub
      • Resource Centre
      • Tech Talk
      • NBS Specification
      • Technical Specification
      • Manuals
      • Guarantees
      • Certificates
      • FAQs
    • Inspiration
      • Case Studies
      • Blog
      • Brochures
  • About Us
    • About Us
      • Our story
      • How we manufacture
      • Accreditations
      • News
      • Research & development
      • Sustainability
      • Sourcing our timber
      • Careers
  • Contact Us

Certificates

Download our certificates

CONTACT US TO DISCUSS YOUR PROJECT
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Useful Resources

Certificate of Renewal of a Patent

RESOURCE

Certificate of Renewal of a Patent

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ISO 9001

RESOURCE

ISO 9001

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ISO 45001:2018 Occupational Health and Safety Management System

RESOURCE

ISO 45001:2018 Occupational Health and Safety Management System

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ISO 14001:2015 Environmental Management System

RESOURCE

ISO 14001:2015 Environmental Management System

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FSC Chain of Custody Certificate

RESOURCE

FSC Chain of Custody Certificate

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Made in Britain Certificate

RESOURCE

Made in Britain Certificate

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Safe Contractor

RESOURCE

Safe Contractor

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Construction line Gold

RESOURCE

Construction line Gold

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Secured By Design

RESOURCE

Secured By Design

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BWF Membership

RESOURCE

BWF Membership

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BlueSky Certification

RESOURCE

BlueSky Certification

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Founded in 1884, George Barnsdale is a family run business manufacturing high-performance timber windows and doors in Donington, Lincolnshire and offering a nationwide project management and installation service.

About us & useful links

Menu 1

  • Case Studies
  • FAQs
  • Careers
  • Contact us

Menu 2

  • Sustainability
  • Sourcing our timber
  • Our process
  • How we manufacture

Menu 3

  • Certificates
  • Policies
  • Privacy policy
  • Terms & Conditions
Subscribe to our Newsletter
  • iso 45001 certification
  • iso 14001 certification
  • iso 9001 certification
  • bluesky certified manufacturer
  • made in britain certification
  • bwf fire door alliance certification
  • safe contractor certification
  • construction line accreditation
  • woodland trust membership
  • secured by design logo
  • specifiedby logo
  • fsc certification

© 2025 George Barnsdale | High Street Donington, Spalding, Lincolnshire PE11 4TA | Phone: 01775 823000

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