We moved into a 3 year old home, our first winter we noticed how cold our sons room was. After some investigating we discovered the builders never bothered caulking the exterior of the windows - ALL of them! We found Window Caulking Toronto on HomeStars and called them up - they came out in a timely fashion, addressed our concerns and had it fixed up in no time. They were professional, didn't leave a mess, didn't try to up sell or oversell us and they were done when they said they would be. We couldn't be happier with our experience using this company and now our sons room (and all the rooms) can maintain their temperature - which has saved us a ton in heating and now air conditioning costs.