I recently had a large bay window and medium sized bedroom window replaced by Harveys. They replaced old wood frame sash windows with uPVC casement windows with 'face-fixed' Georgian bars. I was very happy with all aspects of the installation right from the quote. There was no pushiness or salesman tactics just upfront prices and information, the way buying something should be. The person quoting (Richard) knew all the relevant regulations and made sure he understood what I wanted. With the bigger national companies there is never a set price and the people giving a quote have obviously never installed a window in their lives (I had quotes from Everest and Anglian, both laughably more expensive). While the windows were being installed (over two days, half a day for one window, a full day for the bay) the two separate two man teams who did the work were both polite and respectful in regards to both me and my house. They got on with the job, only asking for a bit of water for their kettle now and again. They left the house clean and tidy both inside and out. Having now lived with the windows for a few weeks I am very happy. The face fixed bars look exceptional, far better than the fake plastic bars in between the panes of glass seen on other windows. I am looking at getting a small extension done in a year or so and Harveys will be the first ones invited to quote.