The products are good, well made and reasonably priced. But if you want new windows you buy them from Cairngorm windows, but a new glass unit for existing windows comes from Inverness glass. They are both part of the group but apparently don’t like talking to each other. So when you order windows and glass all at once from one salesman, you don’t get the glass units. They have to come and measure again, then forget for a while, then measure again. Then they insist you pay upfront which is the opposite of the new window process, then they fit the wrong type of glass and come back a week later to get it right. A process begun in May ‘19 is now complete. All pleasant folk to speak to, need to improve left hand right hand communications though. A lot.