Heritage Double Glazing Package

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 wooden windows into slim double glazed sash 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.

Should our clients wish to have slim sash window double glazing then we offer two ways to achieve this.  We will advise our customers of the best options for their particular project on our site survey.

Please take time to view our references and see what our customers think about us and the benefits they have gained from our services.  For new clients wishing to see a completed project or speak with a previous client please don’t hesitate to get in touch.


“We recently brought a holiday cottage in Dorset with many lovely original features. The sash windows were a lovely feature but in various states of disrepair and extremely draughty . We ‘googled’ various window companies wanting someone who could address the issues but save the features we loved so much. Many quotes were confusing and advice on double glazing conflicting. David at HRG Services gave us clear reliable, detailed information and a definite time scale to work to. We decided to go with them and we are delighted with the results.From inspection for quoting to completion HRG Services have been professional, informative and reliable and the finished product is outstanding, beyond our expectations. We now have a cosy cottage that has lost none of its charms.”

“David and his team restored 12 very old unusable sash windows for us and we are delighted with the result. We now have lovely windows, in keeping with the house, that still have the original look but with modern glazing and draft proofing. A very friendly and helpful company.”