GreenSaver came highly recommended to us by our roofing company, and we are very glad we chose them. Don was one of the best managers who ever assisted us. He was helpful every step of the way. He came up with a great solution for our attic-insulation problems and informed us of several things we needed to know about, which no other company we called for quotes had informed us of. For example, he warned us that before spray-foam is applied to the backs of drywalls, the existing vapour barrier needs to be removed so that the spray-foam can adhere to the backs of drywalls properly, or that problems such as bubbling, condensation and mold can occur. I checked with the foam manufacturer and found out he was completely right. No other companies we called for quotes warned us about this nor even included the removal of pre-existing vapour barrier in their work proposals. Don was also the only representative of all the companies we called for quotes to tell us that bathroom fans and indoor pot lights need to be covered so that spray-foam would not come into direct contact with them and to include this in his work proposal. He came up with a great solution of isolating a couple of very narrow, hard-to-reach areas, where spray-foam could not be applied, with rigid-foam insulation and dense-packing them with cellulose insulation. His work proposal was by far the most detailed and best of all the work proposals we received. He provided us with MSDS sheets, liability insurance and a WSIB certificate upon request, helped us get the GreenOn rebate which was being offered at the time, and maintained excellent communication with us before and during the project. GreenSaver's crew worked hard to remove our pre-existing batting insulation. Their project manager Tony came up with a great way to protect our living space and our lungs from the spread of dust with the use of tarps as barriers. There were no problems with insulation-dust dispersal whatsoever. GreenSaver was also the only company to include the use of tarps as protection in their carefully written contract. GreenSaver improved not only our attic insulation but also our attic air-circulation by installing more baffles than we had before. Their spray-foamers, including Nathan, did such an professional job with the spray-foam that there was no gas-off smell whatsoever after the foam was dry. The spray-foam made our attic “air-sealed” for the first time. Their crew then blew in cellulose insulation on top of the spray-foam layer, to increase our R value to much higher than what we had before, to meet the new building code and allow for settling as well. The crew cleaned up and vacuumed well afterwards, leaving the room they used to access our attic in perfect condition. They even insulated and weather-stripped our attic hatch to prevent air-conditioning or heat escaping from our home to our attic and built a well around it to contain the new cellulose insulation. After they completed the work this spring, this was the first summer that we have had very nice, cool, and comfortable temperatures on the upstairs floor all summer long, regardless of how hot it was outside. Our air conditioner also seemed to be working less often, as the set temperature was more easily kept steady without the A/C having to work too much. So we have already noticed an improvement. We've yet to see how it will be this winter, and whether this new insulation will also help with the ice-damming we used to have on our roof every winter. But so far we are very pleased with the effect GreenSaver's work has had on our comfort level and with how thorough and well-planned their work was. We highly recommend GreenSaver to anyone needing attic ventilation, attic- or wall-insulation, and/or air-sealing work done. They are a company of integrity that shows it truly cares about its customers, and we are grateful for their fairness and help.