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The DGN is an impartial website, created by TruFrame Trade Frames Ltd (the UK’s largest fabricator of Liniar windows and doors in the UK) with the aim to provide homeowners with peace of mind when choosing a trusted, local installer to fit our products into your home. We run this as a free service as we know it can be difficult to find a trusted installer to fit uPVC windows, doors and conservatories.

No, absolutely not. We are an impartial website that wants to deliver great installers to great homeowners. All of the reviews that are listed on the website are taken directly from Google Reviews and are not filtered.

All testimonials listed on the DGN website are from genuine homeowners that have provided feedback to the service provided.

We are in a unique position to connect you to double glazing installers in your area who are approved to install market-leading products. Our network of double glazing installers across the UK have been trained and assessed to ensure that they provide window and door installations of the highest standard. If you choose us to find your double glazing installer, you are opting for outstanding products, installation and customer service.

Our Connections
We provide a simple and efficient search function to help you find your double glazing installer. Simply by entering your postcode, you will be connected to a variety of local installers who fit exceptional quality windows and doors. Each of our installer pages contains all the information you require in a clear layout, making it easy to search through. Whether you are looking for a conservatory, double glazed windows or doors, we will find an installer for you.

Trustworthy Reviews
The company pages on our site contain a selection of the latest reviews by customers. This ensures that you can see which installers live up to their expectations so that you can be confident in their superior installation services.

Energy Efficiency
Every installer on our network offers high quality, energy efficient double-glazing. The benefit of energy efficiency is that because the warm air is retained, your home will stay warmer for longer. Ultimately, this means that you can spend less money on heating, lowering your energy bills.

Supreme Security
From the well renowned Yale locking mechanisms to patented Modlock locking systems, the double-glazed products that our installers fit offer fantastic security. So, you can be confident that your home is thoroughly protected against intruders.

Environmentally Friendly
The double glazing products that our installers fit are completely lead-free and in most cases, 100% recyclable too. Where products are not 100% recyclable they are designed to be simple to strip down so that individual parts can be recycled or reused.

Our British supply chain sees Liniar design and manufacture all their products from a corporate headquarters located in Denby, Derbyshire. This advanced, purpose-built facility houses the largest uPVC extrusion mixing plant in all of Europe.

Guaranteed Products
Every product on the double-glazing network comes with a ten-year guarantee. This enables you to feel completely secure in the knowledge that the products your installer fits are of the highest quality. It is also important that in the unlikely event of any problems, you can go directly to your installer, which will save you time and money.