Question 1

Do you fix car windows?

Accepted Answer

No, sorry! Only architectural and structural projects. We specialize in residential and commercial wood sash windows, storefronts, and architectural glass.

Question 2

What kind of glass do you repair and install?

Accepted Answer

We replace glass in all kinds of windows and storefronts, glass walls, bathroom frameless showers, residential 1/8" double strength wood sash, insulated glass units, custom mirrors, and table tops.

Question 3

What is Cota Glass Inc.'s background and history?

Accepted Answer

Cota Glass was founded in 2022 by a master glazier with over 20 years of hands-on industry experience (in the trade since 2005). In 2025, operations expanded through a merger with Cara Glass & Sash, forming Cota Glass Inc. and creating a single source for custom wood sash fabrication and architectural glass in SF and Marin.

Question 4

Can you restore my original Victorian wood windows instead of replacing them?

Accepted Answer

Yes! We specialize in historic wood sash refurbishment. We repair rotted wood, replace worn sash cords/chains with heavy-duty weight balances, install concealed weather-stripping, and re-glaze existing sashes. When sashes are beyond repair, we build custom exact-match replacement sashes in our local shop.

Question 5

Are your wood windows compliant with San Francisco Planning Department guidelines?

Accepted Answer

Yes. San Francisco's Historic Preservation guidelines require window replacements on visible historic facades to match original wood species, Ogee/Cove exterior molding profiles, and dimensions. We provide shop drawings and physical wood samples for planning submittals.

Question 6

Do I need to replace my entire window frame if my dual-pane glass is foggy?

Accepted Answer

In most cases, no. If your window frame is structurally sound, we can replace just the failed Insulated Glass Unit (IGU) inside your existing wood, vinyl, or metal frame at a fraction of the cost of full frame replacement.

Question 7

What commercial storefront services do you offer?

Accepted Answer

We design, build, and install custom wooden commercial storefront facades using mahogany, oak, and teak. We also install heavy safety glass, commercial entrance doors, transoms, and panic hardware for businesses and restaurants.

Question 8

How long does a custom frameless shower door installation take?

Accepted Answer

After initial field laser measurements, custom 3/8" or 1/2" tempered glass is fabricated in approximately 5 to 7 business days. On-site installation is typically completed in 3 to 5 hours.

Question 9

What geographic areas do you serve?

Accepted Answer

We serve all San Francisco neighborhoods (Pacific Heights, Marina, Mission, Presidio Heights, Sunset, Richmond, etc.) and all of Marin County (Sausalito, Mill Valley, Tiburon, San Rafael, Novato, Ross).

Frequently Asked Questions

READY TO DISCUSS
YOUR PROJECT?

Frequently Asked Questions

READY TO DISCUSSYOUR PROJECT?

READY TO DISCUSS
YOUR PROJECT?