"I had 9 window openings redone with Marvin windows. They came out beautifully!!!!! These are the nicest people I could have worked with. More than once, Melissa tried to talk me into spending less money! I learned a lot in the process and they were very patient with changing plans as we learned about the process. The fact that they are trustworthy and never pushy made me very relaxed. The handiwork is exceptional and I enjoyed the time I spent with them. I could not have asked for a better experience. It was great!"
– April C., Pittsburgh PA, 6/11/2011
(Click here to see our interactive map of testimonials...)

Windows and Doors by Top Quality Manufacturers

Call: 724.446.0275

We don't want to be the least expensive window replacement company in Pittsburgh – we want to be the best. And when you want to be the best, you use the best materials available. That's why we only install replacement windows and doors made by the top manufacturers in the industry.

Top Quality Windows and Doors

Below is a list of the vendors that Window Installation Specialists of Pittsburgh uses for its supply of windows and doors. Click on each logo to see manufacturer information, product galleries, project planning guides, and much more.

Questions? Please call Melissa at (724) 446-0275 to discuss your window replacement needs. Window Installation Specialists of Pittsburgh will be happy to provide you with a Free On-Site Estimate.

We look forward to speaking with you!

2011 Angie's List Super Service Award winner.
4th Year in a Row!

Pittsburgh Tribune Quest for the
best 2011 Winner for Windows Replacement
Best 2011 Pittsburgh Window Company

Schedule a free windows
replacement consultation for Pittsburgh windows

Schedule a Free On-Site Estimate Now:

© 2011 – 2012, Window Installation Specialists. All rights reserved.
1968 Mars Hill Rd., Irwin PA 15642
Phone: (724) 446-0275 | Toll Free: 1-(877) 263-1500 | FAX: 724.446.0292 | HIC# PA003223
Serving the Greater Pittsburgh area and Southwestern PA

We accept Visa and MasterCard.
Financing is also Available: 6 months Same as Cash

Website by Circuit Riders, LLC, Pittsburgh, PA, (412) 422-1611