Double glazing into existing timber windows





Are you looking for the benefits of double glazing but don’t want to compromise on the look and slim proportions of a traditional sash window?

At HRG Service Ltd, we specialise in converting single paned timber windows into slim double glazed timber windows using our 12mm sash window double glazing units.

Our units are ultra slim meaning that from a distance they still appear to be single glazed sash windows and therefore in keeping with your property.

Once beaded or puttied in our units will still appear to be single glazed glass thus keeping the traditional look but with all the benefits of modern double glazing.  Our units achieve a 1.9UV, couple this with draught proofing and the benefits are instantly noticeable.

Please do not hesitate to contact us for a free no obligation survey or for further information


Many homeowners of properties with old timber windows are still unaware that it is possible to keep their original timber windows but to upgrade them to slim double glazing.

HRG Services are specialists in converting existing timber windows to house slim double glazing.

To achieve this the original glass will be removed and disposed of safely, we will then remove any old putty and fixing pins. Once these have been removed we will rout a new channel to the existing window which will allow our 12mm heritage double glazing to fit.

Once installed you will notice the benefits right away, leaving your home warmer and more secure.

What’s included?

Our Double Glazing upgrade package includes:

On site survey to discuss your requirements

Detailed measurements are taken of the new glass sizes that will be needed to directly install into your existing sashes

Once the sashes are removed from the frames we will carefully route back the required depth to accommodate the new glazing on site

We then install the new 12mm Heritage glazing 1.9UV into the sashes using our established methods

The glazing will then be bead faced, fill and caulked in

The beading only will then be painted to provide protection

This package requires that our restoration and draught proof packages are chosen

Get in Touch

For more information about any of our services, please contact us using the form below, or call us on 0800 246 1947

I have read and accept the Privacy Policy and consent to HRG Services contacting me about my enquiry. (required)

I consent to HRG Services contacting me with future updates

Areas We Cover

At HRG Services Ltd we cover all Dorset, Hampshire, Somerset and Wiltshire areas offering a dedicated bespoke service tailored to your needs.

If you have any questions or would like to discuss your project with us, then please don’t hesitate to call us on 0800 246 1947.