Mainstream Construction installed windows in our home on 17-18 December 2025. Initially, we were concerned about how cold the house would get, not to mention how installation would impact our holiday plans. We were pleasantly surprised with the speed and efficiency the crew worked. Our house remained cozy and 15 windows (with one being particularly challenging) were replaced in two days. Everyone, including Spencer, office staff and the crew, were very courteous and professional throughout the process. The crew cleaned up any messes that were created and even rehung our heavy, wooden blinds and curtains. We are very happy with the installation process and the windows,... read full review
December 2025
Removal of old windows and installation of new replacement windows was super fast and finish work excellent. Used drop cloths and very mindful of keeping everything clean in the work areas. Clean up inside and out was thorough. Installers were friendly and did great work! Absolutely love our new windows!
November 2025
If you are looking for great quality products and outstanding service, Mainstream Home Improvement is the company for you. Installation crew were friendly, courteous, arrived on time and did a terrific job cleaning up. The new windows look great and fit perfectly.
Mainstream Construction installed windows in our home on 17-18 December 2025. Initially, we were concerned about how cold the house would get, not to mention how installation would impact our holiday plans. We were pleasantly surprised with the speed and efficiency the crew worked. Our house remained cozy and 15 windows (with one being particularly challenging) were replaced in two days. Everyone, including Spencer, office staff and the crew, were very courteous and professional throughout the process. The crew cleaned up any messes that were created and even rehung our heavy, wooden blinds and curtains. We are very happy with the installation process and the windows,... read full review
Removal of old windows and installation of new replacement windows was super fast and finish work excellent. Used drop cloths and very mindful of keeping everything clean in the work areas.
Clean up inside and out was thorough.
Installers were friendly and did great work!
Absolutely love our new windows!
If you are looking for great quality products and outstanding service, Mainstream Home Improvement is the company for you. Installation crew were friendly, courteous, arrived on time and did a terrific job cleaning up. The new windows look great and fit perfectly.