M&R did a great job in my attic and also put a solar fan in my home. My home is more comfortable…read morenow than it was before and my energy bills have went down about 20%. I'm thinking about having them come back to insulate the rim joist of my home sometime in the next month or two. The best part was the tax credits that helped pay for the whole project. I would definitely recommend these guys and the system that they put in my house.

Town insulation sealed our attic, moved our access location, replaced two bathroom fans and did…read moreloose fill insulation, and added baffles to fix ventilation issues immediately after a new roof was put on. Nick was super helpful and knowledgeable! He ensured the job was done right and well. We would have them back in a second if needed for other areas of our home.

Terrible. Eric King came out and took my information in December for EmpowerNY. Never returned my…read morephone calls. The office was unhelpful. Finally I called NYSERDA today and found out my application was never submitted! I called the office and the woman who answered the phone was completely blase about the whole thing. They wasted my time and my money. I really needed insulation THIS winter, not next winter! Had I known they dropped the ball I could have gotten another contractor.

Upon requesting quotes from various vendors to insulate out attic, this vendor was not only the…read morelowest quote, but they scheduled us within 2 weeks. On the scheduled day, they came in, did their job quick, cleaned up, and left. If you are only needing insulation work done, I'd highly recommend them. They also sell insulation supplies at a discount if you want to do the work yourself.

When I was moving back to NY, my home inspector recommended Home insulation and Supply. They were…read morefantastic from the receptionist, Carrie, to the supervisor, Sal, and all the workers. Everyone was responsive, nice, and worked so hard in the crawl space. I feel the prices were fair and have no complaints what so ever. I had some questions about the crawl space and Sal went out of his way to get the answers from the owner. They took out the old yucky insulation that was falling down in some areas, the old barrier and replaced with a new and better barrier on the floor plus spray foam insulation. They did give me choices and explained the pros and cons as well. I would highly recommend them. Susan

Here's a company that has everything you need and want in the line of insulation…read more First off, they were on schedule. In fact, the owner of the company actually showed up separately as well . To have top personnel come out on the job, is absolutely a plus. Second, I watched and asked questions in the beginning- they were not at all annoyed but in fact answered everything I had to ask. They were very polite. Lastly, after they were done, the cleanup was as if you never knew they were there. GS insul cleaned up every step of the way. None of my bushes that were in front of the house were damaged. They were careful and respectful every step of the way. They also did my attic and my crawl space. I am ready for winter ( and summer as well ) no more winter drafts. I cannot emphasize how pleased I am with the service and outcome of this rather large project. I wholeheartedly believe that you won't be disappointed in the results of using this company.

They came out, gave me a quote, later qe agreed to an install date, they called two minutes before…read moreto say they weren't able to come...Said they would call back to reschedule, they never did. Never responded to any call or request. Perhaps they're out of business now, that why?

These people have been running their loud equipment outside my house for going on 3 weeks. To top…read moreit off, they put markers in the street that take up 3 car lengths so you cant park there overnight. How the heck does it take 3 weeks to put in insulation. Resident on Brantford Pl.

Just submitted an online request for re-insulating my remodeled kitchen. Promptly replied, came out…read morequickly to give me an accurate and competitive quote within minutes. Will update once job is competed! **************Update*************** Job was well done and completed quickly and professionally! Better quality R-15 2x4 wall fibreglass insulation than the home stores (almost like cotton candy!)

I have an old house that had some cold spots. George from Everest Insulation promptly came to my…read morehouse after a phone call and provided me with a thorough explanation of various options I could explore. My house has certain unique features that other companies would not accommodate. Happily, George was honest, easy to deal with, and willing to tackle the challenge. It was easily the smoothest and most professional experience I've had with a contractor in the GTA.

They are very good.As soon as you call- they come ,give you the best price in market and the job…read moregets done at your best satisfaction.I would give them 10 out of 10,no hesitation and recommend to people who do home renovation and specially home insulation.

Best insulation company for sure, I recommend going here before anywhere else, If you want the job…read moredone right and by honest people!

We recently had them replace our storm door and entry door. Our threshold was a very old and in…read moredesperate need of replacement. Dan was very knowledgeable and explained everything well. He also took the time to help me find the entry door that would work perfectly for our house. Dan is very conscientious, fair priced and did a beautiful job. If you need door or windows replacements, I would highly recommend Dan at Alt Builders.

I'm writing this review on behalf of my friend Jeff who recently had a patio door replaced in his…read morecondo. Based on the reviews he read here on Yelp he decided to go with Alt Builders and their owner Dan. He contacted Dan and was who responded very promptly on a Sunday afternoon. Dan came out the next day to size up the job. He was prompt and very knowledgeable about what Jeff was looking to have done. The patio door was ordered and came in approximately 3 weeks later. Dan and his crew were able to come out to do the job within a couple of days and completed the job in a day and a half just like he promised. They cleaned up and the installation went smoothly. The price was very reasonable and Jeff is definitely going to hire Alt Builders in the future to get some doors installed. He highly recommends Dan for any work or repairs you might need.