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Outstanding! I highly recommend them. Here's why... I am completely satisfied with Window Installation Specialists! The quality of workmanship, professionalism, and customer service were all outstanding. I compared prices with the Pella Showroom and distributor and Window Installation Specialists offered identical Pella windows at a significant discount and with same lifetime guarantee. A++
Jennifer L.'s review of Window Installation Specialists Pittsburgh earned a Very Helpful vote
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Very friendly and professional work. Ensured that windows would match those installed by a...
They did an excellent job, were well-dressed, and arrived on schedule, which is why I heartily...
