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What is the DGN?

The Double Glazing Network connects homeowners with trusted, local installers who have been trained and assessed to ensure that they can supply and fit Liniar uPVC windows and doors to the highest standards.

Why we're here

Looking for an installer?

We have the UK's largest network of reputable installers waiting for you.

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What are you looking for?

If you need help in choosing the right window, door or conservatory for your home we’ve got you covered.

The gateway to your home

Composite, Bi-fold, Patio doors and more to suit any home.

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Let the light into your home

Contemporary & Classic window styles to fit your home.

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Bringing the outside inside

Extend your home with a beautiful uPVC conservatory.

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Need more help?

We have a wealth of information for you at your fingertips!
Everything from how to ensure you have the best security for your property, to finding the perfect windows for your home.

What to look for

Happy customers throughout the UK

Don’t just take our word for it that we fit the best windows, doors and conservatories, but rather read further on what many of our installer customers say.

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Like what you’ve seen and just want to get your quote.
We’re here to help you find a local installer for all of your requirements for windows, doors and conservatories.