Approx. 14 windows & a siding door were installed in 2009. There has been no problem with the installation whatsoever & am very pleased with the brick-to-brick installation. The work was done expediently over 2 days and were delivered & installed as promised. Very professional work. Despite being the lowest of 8 bids received, workmanship & quality of windows were superior. Would not hesitate in recommending this contractor.