Very professional I appreciate to work with Ernesto, because he takes time to explain everything and all details, lead time, etc. Good follow up, even after the delivery. I recommend +++

In follow up. I had to hire an attorney spending thousands of dollars force them to replaced the doors under warranty. If you have 10,000 dollars to hold them accountable and can afford a year...

My first interaction was with Ernesto, Collier's sales rep. Ernesto patiently walked me through all the options and has been very responsive throughout the process. I chose fiberglass windows...

I used Collier through my contractor for ordering windows. Collier was the supplier for the high-end Marvin windows I wanted. Ernesto came out and measured--and also came back out at no...

Ernesto is the best! We had an issue with a couple of handles from our Fleetwood windows that were installed during our to-the-studs remodel in 2017. He reached out to the company on our behalf...