I would recommend Stellrr to anyone. They insulated my attic at a fair price and I know I can trust…read morethem. Angel and his team replaced the old fiberglass insulation in my attic with cellulose, air-sealed my attic, and insulated my catwalk. They were on-time, communicative, and did great work. I was impressed every step of the way. They also went above and beyond, adding extra insulation at no charge! Mr. Wayne followed up weeks later for quality control and added more insulation and air sealing that was even more than what we had contracted for. I can't recommend Stellrr enough! This isn't a paid promotion or anything, I just think more people should contract with Stellrr and want to let people know that my experience with them was phenomenal. I recommend them 100%.

Getting an estimate is an ordeal with this company. They never answer the phone and machines text…read moreand call me giving me no help. How they do business is baffling.

10/10 recommend Carlos! My attic needed to be bought up to code to battle the Austin heat and being…read moremoved around after new ducts. I had another company quote me over 2x and nowhere near the level of service JC provided. He was quick and easy to work with and when I discovered there was a small issue, he came back to fix it same day. From inquiry to install, Carlos and his team were able to make it happen in 4 days.

No complaints about response time, workmanship and clean up after the work is done. I definitely…read morewould recommend them and I'll be using them again for other projects. Thank you JC Insulation!

I chose Green Collar for my City of Austin Weatherization service. I was hesitant, and called the…read moreoffice to ask questions about the business. Cord spent about 20 minutes answering my questions about how long they had been in business, how they would handle unexpected problems, and what I could expect. The owner Ron came out for the evaluation appointment and he also explained more details of the work they would perform. The installation of new ac ducts went very smoothly and the workers cleaned up after finishing each day. I would highly recommend Green Collar to anyone needing duct replacement or repair.

As we head into this cold snap weekend, 10/10 appreciation for Green Collar!! They revamped our…read moreflipped home's rather chaotic HVAC system over the past three weeks in conjunction with the City of Austin/Austin Energy rebate program for energy efficiency improvements. The owner of the company provided our estimate, the team arrived within the time windows predicted, they were competent and courteous, and they did a *fantastic* job modernizing our system to heat quietly and evenly throughout. They added a vent to a bathroom that had been inexplicably left without one, improved the insulation throughout, and added an attic walkway for safety. We've been tolerating very uneven temps and noisy vents for the past 10 years, and I wish we would have discovered Green Collar sooner! It is *NICE* in here. I have no reservations about recommending Green Collar's services. Stay warm, y'all!

They came when they said that they would, were very polite, and finished in about two hours. They…read moresprayed radiant barrier in my upper attic and cleaned up afterwards. Jackson was very good about keeping me informed of the arrival time and the progress of the work.

This is my 2nd house that I have had them do (new construction). Could not be happier with the…read morejob done. They crew worked hard and did a great job. They cleaned up after the job was done. The price was better than others I quoted. When it's time to build another house, Hill Country Insulation is who I will use.

Summary: they totally wasted my time, and are not trustworthy/competent for attic air sealing or…read moreHVAC. E.g. They recommended an HVAC return that would have never functioned correctly according to HVAC pros. They would have upgraded a supply plenum without changing ducts, which would have accomplished little. I had them come in the spring to assess my house. They suggested many improvements, of course, but the sales process is so clunky that any change requires them to reprice the whole quote. This wasted a bunch of time. They could complain about me, sure, but they were the ones trying to upsell me. They were supposed to pull out all insulation, air seal, and put in new insulation. However summer arrived and it got too hot, so the sorry changed: "we don't actually need to pull insulation, we can just move it around and seal and add new on top" of my existing feces ridden insulation which they originally insisted to remove! You cannot adequately air seal without removing insulation. Do your own research and you'll see. Afaik they were also not going to use the correct cans to seal around lights. For these reasons I was only going to use them to pull insulation and put in new, plus a few other non-specialist improvements. They also had nothing to say about the terrible air sealing around my doors because they never checked! "Energy savers" is a joke if you can't identify the largest energy leak for a house in the winter. When I came back to them to get a final quote, the ignored me twice before blowing me off. I would not recommend using them for anything.

Once, I was prone to freeze in the winter and sweat in the summer inside our home. I could have…read morelived outside and experienced similar conditions. Last month, Moore McDonough, owner of 360 Energy Savers and a local energy specialist, spent several days advising us on how to improve our older home's heating and cooling system. I'm a bottom line kind of a girl. Just the facts and make it quick. You do not get that with Moore. He gave us the Wikipedia version of everything and I certainly appreciated his knowledge. For example: "One inch of insulation material is equal to the heat resistance of a foot and a half of brick". Fascinating, right? This is definitely cocktail hour trivia. Moore's employees, Shawn and Eric, who are extremely polite and hard-working, installed weather-stripping, insulation, and expanded our vent system. These guys spent a lot of time crawling around the attic like giant rats. At one point, Moore brought in an Energy Conservationist who created a new duct system and performed additional work netting us numerous rebates from the City of Austin. Our first bill, even with the summer heat, was less than our last cooler weather bill. Plus, the rebates will pay for more than 25% of what we had done, which included a new air conditioning unit. We are now, accordingly, freezing in the summer.

They did a wonderful job. Before proceeding, explained what they were going to do and gave me the…read moreprice and then afterwards, showed me before and after pictures. I would recommend this service!

When I got the quote for $109 per Ac, it said unlimited vents included. But when the technicians…read morecame here, they didn't clean any AC vent. I asked him to do it, he said each vent cost $89 to $99. What a ripoff!

10 out of 10. Frank…read moreand his crew, specifically Alan, were top notch. Our ducts were in AWFUL shape and these guys did an outstanding job replacing them. They were efficient, quick, detailed, and communicated the scope of services better than I could have imagined. I can't express how appreciative I am for their hard work and would recommend them to family and friends. These guys went above and beyond.

After an imperfect start, Frank is now taking care of me . A trusted friend recommended him again…read moreand I'm guessing any previous misunderstandings were because I caught him at a bad time (sure it's a very busy time for him and his profession). I'll have a final update after the work. Thank you Frank.

On time, good communication and service. Explained what he was doing to correct the mini-split…read moredripping issue and what to do to prevent in the future.

Yusuan gave me a fair and detailed quote to replace my old HVAC system. He and his guys came out…read moreyesterday to replace the furnace initially. They worked tirelessly all day, in the sweltering heat, and managed to replace the unit in my tiny attic. They did a great & thorough job and were very friendly with me and my pup the entire time. Happy to recommend his company.