About Us Windows Unlimited

We're more than just windows and our history proves it. Windows Unlimited was the very first company in Pittsburgh to introduce insulated glass as well as vinyl windows. And that's just the beginning. Our business philosophy is very simple and our success today is built upon the same foundation that we began in 1963.

Customer satisfaction and innovative products are the cornerstone of our company. Call for a free in-home estimate, e-mail us, or visit one of our showrooms. Or, just tell us how you prefer to be contacted.

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To continue to strive for total customer satisfaction. We pledge to have the best products available, the best trained installation teams and quote the best possible price for these services.


	1963	The opening of our doors on April 1, 1963 by John M. Cavanaugh who had been in the window business since 1947.

	1969	Introduced the first customized insulated glass replacement window

	1979	Replaced the aluminum window with a more efficient vinyl unit.

	1981	Because of customer response, began installing siding, soffit and fascia and rainwear.

	1985	In the mid 80's Low-E insulated glass, foam filled frames and EASY CLEAN GLASS were introduced.

	1996	R-SERIES contoured underlay for siding was introduced for better strength and efficiency.

	1998	Introduction of MAXUUS R-10 insulated glass, the most efficient glass ever designed, which exceeds ENERGY STAR requirements.

	2004	Windows Unlimited customer base reaches 25,000

	2008	One of the first companies to have all product ENERGY STAR rated.

Jim Ca While Jim’s father founded Windows Unlimited, Jim has made windows, doors, and siding his career for over 37 years. So when a potential customer understands that this family business was built right here in western PA and now boasts over 25,000 satisfied customers, it’s no wonder Windows Unlimited is the preferred choice for replacement windows, doors and siding in the region.

Remember, Pittsburgh and its surrounding suburbs are comprised of virtually every form of residential and commercial property. From turn of the century victorians and the post-war ranches, colonials, and multi-levels to energy efficient community designs and spacious country estates, Jim and the Windows Unlimited Team has been providing fully warranted home improvement solutions for generations. Over 47+ years of experience backs every sale!

Call up and ask for Jim personally. That’s how we prefer to do business!

Visit Our Home or We'll Come to Yours! 120 Clairton Blvd. (Rte. 51) • Pittsburgh, PA 15236 local: 412-655-8401 • fax: 412.655.8660 Established in 1963!		1-800-244-1963