Not sure if this company is reliable.

This company come recommended and I am not sure why? The engagement with the sales person over the phone was positive and reassuring. Payment had to be up-front (alarm bells as this is basically an unfair practice) then appointment made for a very specific day and time. No one pitches, wait an hour, no one calls. When I call I am told the technician has been or at best is still on my property (no one has even arrived). Then a scramble around to try and find the technician (who apparently had run out of supplies) to be told he will be here in 9 minutes - which of course doesn't happen. So very apologetically and more than 2 hours later the guy arrives. I would not recommend this company if this is how they conduct business.