50 years of excellence working for you

The Alpha Sunrooms Line
Homeowners' dreams and expectations have been C-Thru's goal of fulfillment from the beginning. By foreseeing the market trends we have decided to bring back our sunroom that has started it all. This isideal for meeting the need of adding space while watching your budget.
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The Omega Sunrooms Line
The Omega Sunrooms Line offers our ultimate, most energy efficient sunroom. A spectacular sunroom that blends artisanship with modern technology. The result is an elegant sunroom that offers multiple choices of design combinations.
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Who We are

C-Thru Sunrooms is a family owned and operated company. We have been in business since 1947 and have hundreds of thousands of satisfied customers throughout the country. Over the years, our products have constantly been improved by incorporating the latest manufacturing, construction, and energy-efficiency technologies.

C-Thru Sunrooms was founded in 1947 as the C-Thru Aluminum Awning Company. One of our basic business philosophies is that "Our customers deserve a quality product at a price they can afford."

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We Serve the Entire Bay Area Including:

And the following cities:

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