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Window Tech Inc., Lakeside, California

patio doors

Ultra swinging and sliding patio doors are the perfect way to invite the beauty of the outdoors in. Now, you can bathe in the light of a sunny afternoon while shielding your home - and your door - from the elements. The strength of fiberglass protects your investment from the harsher side of Mother Nature. It's even paintable to suit your custom color taste.

Ultra's swing door has a traditional French door look with the superior durability, strength and weather resistance of fiberglass. Feel safer with the increased security and performance of our multi-point stainless steel locking system. To achieve the exact look you want, order in any of our factory-painted colors (guaranteed not to peel or eggshell) or in a custom color applied at the factory. You can also paint the door yourself.

Ultra's French-style sliding door combines the upscale look of a French door with the space-saving design of a sliding door. Buy doors as strong as they are beautiful. Our patented process for mechanically joined corners increases strength and durability. Choose from a large selection of hardware and grid options, including our dual-point locking system for enhanced security.