Absolutely terrible customer service. The sales consultant I've been working with put the wrong specs on my order form and foolishly I trusted that he did his job properly.
Now that I've received my $2,000 patio sliding door, Durabuilt won't do a thing to help solve the problem because "I had the chance to review and sign the contract and catch the error before the order"
Sorry Durabuilt, but if your salespeople can't take an order properly and then their solution is "Go sell it on Kijiji and then call me when you want to order a new one" that is just terrible customer service.
I highly do not recommend using Durabuilt Windows and Doors if you're doing a home renovation of any sort.
Also, the fact that they don't have reviews enabled on your Facebook page is very indicative of the quality of service they offer.