Listed buildings and conservation areas
Secondary glazing, keep the windows you have.
Keep the windows a listing says must stay, and still feel the difference. A second glazed frame on the inside cuts the cold, the noise and the draughts. From the street, nothing has changed.
- 3
- Ways it can open
- Slim
- Sightlines, usually unseen outside
- 1981
- Family owned since

Secondary glazing, for traffic noise
So it opens the same way
Matched to the window
Vertical sliding sits beside an original sash and opens the same way, so ventilating the room does not mean fighting two different windows. The frames are narrow and usually unseen from outside.
Horizontal sliding is the same idea, opening across. It is the one used in schools and public buildings, and it is the more affordable of the two sliders.
Casement secondary glazing follows a hinged opener. A timber casement usually locks with a cockspur handle, which pulls the sash onto its seal. The secondary frame uses the same narrow sightline, in whatever layout the opening needs.
We are not the cheapest quote, and that is deliberate. The handles and hinges are the ones we would fit in our own homes, because a cheap set is what fails first. Homeowners have trusted the firm with that since 1981. About the company.
No obligation
Book a free survey
Call Carlisle on 01228 599 777 or Dumfries on 01387 249 777.