Who knew this company did windows? Had 7 triple glazed windows installed. The new windows make the house so quiet and really keep the climate controlled. Their price was very competitive, especially against the two other big companies in Calgary. My problem and my fault...got the quote in Nov and didn't realize that the windows were not stock and had to be ordered and that took some time. Also windows can't be installed when

A fantastic experience with SIS Exteriors! We had 6 Companies give us estimates on new windows and doors and this was the only Company that followed up their Quote with helpful information, ideas and advice! The Salesperson, Alanna was excellent -very professional, friendly and patient. Our visit to the Showroom furthered our confidence in the Company. A Crew of 4 capable, professional Fellows came to our home to complete a timely installation; here again, Don, the Foreman was obviously knowledgeable and experienced. We are very pleased with the products and the installations in our 60 year old home! SIS Exteriors made a rather daunting project a most pleasant experience!!

SIS was an excellent company to deal with from beginning to end. The sales person was great, not too pushy and understanding of our timeline. The installer was awesome because they were very professional and knowledgeable when it came to the complexities that arose while doing the installation. They finished the install in less time than expected and cleaned the area after they were done very well. I would definitely recommend anyone to use them, and I will be using them again for future renovations.

Used SIS for two patio doors and a front door replacement. They did the work promptly and to a high standard. Their staff are diligent and courteous. We have recommended them to our family and friends and will use them again.

SIS recently clad our home with James Hardie siding and corners. SIS also replaced two windows as well as the soffit's, facia and eaves troughs. We are very pleased with the final installation of all the products. The crew assigned to our job was neat and professional. We actually enjoyed having them working on our property. From first contact to final sign off the process with SIS was seamless and well organized.