DO NOT USE DO NOT USE, PLEASE FIND SOMEONE ELSE AND SPARE YOURSELF A LOT OF FRUSTRATION. I had windows and doors replaced in a 4 bedroom house which I have as an investment property that I rent out. They were unable to distinguish between having an correspondence address and an installation address and sent crucial paperwork to the installation address meaning I didn't receive it. Occasionally they did write to me at my home address but couldn't do this consistently. They didn't turn up when they said they would. The fitter was rude and intimidating, he made me sign to say I was happy with the entire installation after them fitting just one window. I was advised the installation would take 2 days, however the fitters didn't complete it within the 2 days and didn't communicate to me or the tenants that they hadn't finished and would be back the following day. As I don't lilve there I assumed they would phone me or talk to the tenants about any such matters. They turned up the following day (day 3) but no one was there to let them in as we weren't expecting them which meant I was suddenly left with trying to get time off work to drive for an hour to the property to let them in which was very stressful. I was then informed by the area manager that the installation had finished and he chased for payment, thankfully I didn't pay until I went to the property myself to inspect it, they hadn't fitted a letter box, had fitted the right locks and hadn't fitted the patio doors but instead left them in the back garden. At no point were either myself of the tenants advised what was happening. I have wasted hours and hours trying to chase around, make/receive calls and emails to get this sorted. At no point did I get to speak to anyone who seemed to take my complaint seriously or care that I was trying to resolve the issues and get the work finished. I was repeatedly given false information. Due to not having a letterbox for more than 10 days Royal Mail stopped delivering the post, as per their policy, meaning the tenants were forced to go to the sorting office each day in the centre of the city with no parking to collect their post which naturally they were very unhappy about. Now over 2 years later I haven't ever received any form of certificate/warranty and don't have any paperwork detailing what is covered and how to report an issue. Despite chasing this multiple times I've never received it which they say is my fault and they insist they cannot resend it until I pay £22. The lack of communication and lack of customer service was and still remains appalling, PLEASE PLEASE save yourself a lot of wasted time, money and frustration and use someone else!