Quality Installations

Quality Installations

Manufacturing processes can be controlled within a factory environment and consistency can always be maintained, providing a few simple steps are taken to look after the machinery and service any moving parts before they wear out.

Repeating these standards in homes across the UK presents far greater challenges and in our Bygone Premier Partners you can expect the same exacting attention to detail when it comes to replacing your sash windows.

That’s why we have a strong selection process for our suppliers, we’ll only allow companies to join who:

  • Demonstrate sufficient experience in sash window installation
  • Can prove to us they are reliable
  • Possess a level 2 NVQ in Fenestration to show competence in all practical aspects
  • Share our commitment to excellence


Installers selected to join our network come from a wide variety of backgrounds.

Some were master carpenters who despite appreciating wood, knew only too well the maintenance issues of timber windows and wanted an alternative to offer customers. Others have installed windows all their lives, either working for other companies or freelance, before starting their own business. Many have showrooms and all are independent, professional businesses, authorised to be our sash window suppliers.

Quality Guaranteed

As part of our commitment to you we regularly assess each of these installers to make sure they continue to comply with our standards and provide you with great service. Each will work to your requests, look after your home and safeguard your possessions.

No matter where you live in the country there will be an installer willing to help assess your requirements; from Cornwall to the Highlands.

Your Bygone Preferred Installer should care about your home almost as much as you do.

If requested, they will:

  • Ask questions and listen to why you’d like to replace your windows
  • Illustrate how they intend to resolve any issue you have
  • Demonstrate a sample window
  • Inform you about other work they’ve done nearby
  • Explain your choices of internal architrave and finishing
  • Provide a written proposal for your consideration

Because of our stringent competence process, we have no hesitation in recommending any of our partnership companies to you.

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These sash windows are only sold through our national network of premier partners, all of whom are certified and approved Bygone sash window installers




Locate your nearest premier installer for a free quote


"They showed us two bygone sash and case windows, one was timber and the other was their wood alternative" "

each had the same furniture and at first we couldn't see the differences, so we went for the windows that won't need painting!"

Mr McD - Aberdeen

What makes bygone sash windows so authentic?

Find out more >

Accreditations >

Learn why you get better windows because of these

  • BBA - British Board of Agrément Certified
  • ISO 9001:2015 Certified Organisation
  • SBD - Secured By Design Approved Windows
  • British Fenestration Ratings Council - A Rating
  • Energy Savings Trust Recommended Windows
  • CE Compliant Windows
  • All Bygone windows are manufactured in the UK

Request a Quotation

Would you like to see a sample, discuss your requirements and options, or obtain an assessment of the costs for your project?


If you would like a copy of our brochure please click the download button at the bottom of this page.