Functional Living Spaces

Ultimate Outdoor Living

Reimagined Spaces

Break the Barriers

Seamlessly blend indoor and outdoor...

Family owned and operated, Cornerstone Openings is your premier destination for exquisite high quality, bifold, accordion, multi slide, swing and sliding doors that seamlessly blend indoor and outdoor. Elevate your living spaces with our cutting-edge folding patio door designs from LaCantina that not only enhance the aesthetic appeal of your home but also provide unparalleled convenience and versatility.

We understand the importance of creating a harmonious connection between your indoor and outdoor spaces. Our folding and bifold patio doors are crafted with precision and innovation, allowing you to bring the beauty of the outdoors inside with a simple fold.

Explore our extensive range of our LaCantina folding patio door options, each designed to cater to diverse architectural styles and personal preferences. Whether you seek a modern, sleek look or a more traditional aesthetic, our doors make the transition to open space seamless using folding doors, bi-fold doors, or pocket patio doors.

Cornerstone Openings

Patio Doors for all of Southern California
Let Cornerstone Openings create the ultimate indoor and outdoor space for your home.
Dana Point Showroom
34167 Pacific Coast Highway
Dana Point CA 92629

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San Diego Showroom
955 Turquoise Street
San Diego CA 92109

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Costa Mesa Showroom
110 Broadway
Costa Mesa, CA 92673

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Ready to upgrade your living spaces a seamless indoor/outdoor experience? As the #1 LaCantina Folding Door installer in the world, Cornerstone Openings takes pride in getting you the results you expect.

Our skilled technicians bring years of experience to every project, ensuring your patio doors not only enhance the aesthetic appeal of your home but also provide reliable performance for years to come.