Looking for outdoor furniture

I'm finally wrapping up the construction of a terrace right outside my house. I got this property a couple of years back and totally lacked a covered space to step out in the morning and grab some fresh air with my favourite cup of coffee. The build is pretty much done now and I need to pick up some outdoor furniture for it. I'm not after anything extravagant, just a standard bistro set with a little table and a couple of comfy chairs. Where are the best places in the UK to look for something like that?