Pre-sales was great, sales person was friendly. Ordered a nice door and window unit with expensive finishings, probably over paid, but I liked the sales person.
Upon delivery, wrong parts were delivered - the specific finishings I asked for were not installed on the door. Unfortunately I noticed this after my old door and windows were taken down. Brock was not able to deliver on what I wanted - the parts were not available with my specific combination. It took months of negotiations and involvement with the BBB before it was resolved.
Since then, the product has since failed multiple times due to defects. I have had multiple service calls, problem is that each time it takes 3 to 6 months to get a replacement. Not only that, their supplier routine screws up orders - wrong parts, defective parts, etc. Also, service department is hard to reach, does not call back, takes weeks of phoning to get a status update. I've had to call service 3 or 4 times - so yes, I've spent years dealing with Brock...
Brock looks good up front, but Brock ultimately fails to deliver.