1. Cosmos

    1. Cosmos

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    San Francisco, CA

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    Recommended Reviews - Cosmos

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    Photo of Wen C.
    3
    117
    18

    10 years ago

    Had good experience few years ago. They did a great job matching the bullnose tiles for us.

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    Aydin’s Building Supply

    Aydin’s Building Supply

    4.5
    (309 reviews)

    Aydin's Building Supply has a wide variety of options for your needs and an excellent staff with…read moresuch accommodating customer service. The staff here assisted my family and I with picking out options for a remodel project. They made sure to list out options for us well within our budget, and even offered their advice on alternative options to look at. Definitely will be returning here for future needs!

    Horrible customer service…read more I came into this showroom on a Saturday after a window latch broke. I brought the window and the broken latch with me, expecting some basic assistance finding a replacement part. Instead, because I didn't have an original order number and hadn't purchased the window directly through them, they refused to help. Maybe the weekday staff is more knowledgeable, but the employees working that Saturday either didn't know the Milgard products or simply couldn't be bothered to help someone who wasn't making a large purchase. It felt like the moment they realized I was only looking for a replacement part, they lost all interest in assisting me. If you're expecting customer service, product knowledge, or any willingness to help solve a simple problem, look elsewhere. There are better options out there. Update: Reached out to Roadrunner Glass in Fremont and they were able to identify my window from pictures as the Tuscany model and the Smart Touch Latch I needed. They did not even me to come in with the window and only needed a picture. So if you want good customer service its better to just wait till during the week when staff with experience and know-how can help.

    Cosmos - buildingsupplies - Updated July 2026

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