We have large windows and are losing a lot of heat through the glass, so we are considering retrofitting double glazing. We have a company called Ecostar coming tomorrow to measure up, discuss the options (UPVC vs aluminium, etc) and give us quotes. Their product is manufactured in England and looks to be high quality.
The other company I’ve looked at is Sustainable Construction Services, which has a German-manufactured product which also looks to be high quality.
Does anyone here know anything much about double glazing? The particular things I’m interested in are –
Does anyone know about the reliability and quality of these two companies, Ecostar and Sustainable? Alternatively, can anyone recommend a company?
Does anyone have experience of what sort of difference it actually makes when you retrofit double glazing? Can you really feel a substantial difference? (I imagine the answer to this question is yes, if you fit good quality units and they are properly installed.)
From what I’ve read, double glazing is also good in summer at keeping heat out, although it seems better at keeping you warm in winter than at keeping you cool in summer. Does it actually have a noticeable cooling effect in summer?
Any other comments would be appreciated. It’s very expensive, and I would certainly not want to spend the money involved without being sure that I was dealing with a reliable company and the benefits are tangible.