You can find a list of all double glazing companies in Stafford on my website www.expertrequired.com select double glazing from the service drop down.
I can recommend 2. I had Target Windows in Stone and Stafford UPVC come out they gave me a quote and then said if you are interested call them back if not they would not hassle. They were both true to their word. They were also honest (and competitive) in their pricing. I opted for Target as they were a few pounds cheaper, the quality of the work was outstanding.
At the same time I had Safestyle out and they did they old sales pitch started at thousands and they said there is 50% discount and then they would knock more off for this and that. They would also not take no for an answer at one point saying they will wait in the car and come back in 5 minutes when we have made a decision. I told him to wait in his car and not come back.
Therefore my recommendation would be:
Target Conservatories & Windows
10, The Fillybrooks, Stone, Staffordshire, ST15 0DJ
Tel: 01785 811558
or
Stafford UPVC Window Co Ltd
Tel : 01785 246516
Unit 12 Brindley Close,Stafford ST16 3SU