I just had a new AC, furnace and insulation installed by Green Collar. Holy Moley, talk about good…read moreservice. I knew from the minute I talked with Bill Cook I wanted these guys to install (helped by the fact that my friend and well respected broker Eileen Gill recommended them VERY highly). Bill was patient with my questions, gave me a very thorough assessment of what i needed, was very transparent with pricing and options on COA rebates and programs vs what I needed. He didn't upsell, worked with my budget, and I felt like he really had my best interests at heart. The install teams were true professionals, very covid aware, clean and precise in their work, and I really felt like I had absolute experts taking care of my beloved home. Even during an ice storm event, they came through and finished the work and my home is now warm and cozy and the new furnace is so silent and efficient. Is it wierd that I wish I needed another AC? They are that good. What a find. I will for sure recommend them to everyone who asks.

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.

Amazing how we take our utilities and comfort for granted!…read more Kudos to Andy Pell -Earth Energy Audits (independent auditor) who came out & provided great information on what our heat load is to assist in making an informed decision! I highly recommend Earth Energy and Andy!

The reviews below me said it best : Andy was fantastic! He was prompt, professional, and very…read moreinformative. He explained to me each of the things he was doing, what he looked for in an audit, and what to expect. He also answered all of my questions about the kind of improvements that were worth it and those that were a waste of money. We were required to have an Energy Audit to sell our home and our realtor recommended Andy. Lucky for us, Andy found no recommendations and gave us a good "bill of health." What I like more is that if he does have recommendations, he doesn't perform any work himself, providing a truly unbiased opinion. I fully plan on having Andy perform an audit of our next home, whether it is required or not.

I called Austin Auditors for help with an ECAD audit on a home I'm selling for a client. Not only…read morewas Joe polite and efficient, he quoted a fair price and was able to get someone out within the next few days. Ben came out to perform the audit and was friendly & professional. I got the audit report that afternoon and some prompt answers to a few questions. This is quite possibly the easiest company I've ever worked with. :) Pleasant and quick, from beginning to end!

I needed an ECAD energy audit to put my condo up for sale so I looked at Austin Energy's list of…read moreapproved inspectors and saw that Austin Auditors was on the list. Found them on Yelp and scheduled an appointment, they were on time for the appointment, efficient and affordable.

Needed to replace an AC unit. The inspection, time to complete, and quality of the job went above…read moremy expectations. My landlord was the one to work on money, so I can speak to value or cost but she seemed pleased here. ​​ Bill was easy to get in contact with and inform me if any and all needs and updates. Solid work, glad this company was chosen for the job!

When my AC went out, during a freakish heat wave of course, I dealt with several HVAC companies of…read morevarying levels of competence, honesty, and profit-max orientation before I finally called 1st Choice Energy--and I wish they *had* been my First Choice. Not only did they replace my old HVAC with a more efficient unit, they worked in partnership with Austin Energy to upgrade and weatherize my entire house, getting rid of funky old ductwork, sealing everything up, and moving the furnace to a better location. Over the years, I'd gotten used to having a few cold rooms and too many warm ones, but I now have consistent, comfortable cool. This took quite a bit of work on their part, but Matt and everyone on the crew made it easy to have them around. They were hard-working, respectful, friendly, even fun. And they did it all at a price that even this starving artist can afford. I cannot recommend them highly enough. Skip those companies that spend their money on endless TV commercials, and call 1st Choice first.

Is this company still open? I have called all numbers on their website and the numbers are not in…read moreworking order? My husband sent an email last week and we have not heard anything back.

Do NOT use this company for energy audits. Two of my clients have hired them (not on my…read morerecommendation) and one of them paid up front and never got their audit and never got a refund. One of them has been given two time windows last week for an audit and both times, no one showed up. I asked what company they used and when they told me, I was like oh no! NEVER EVER hire Austin Green Team for energy audits!

We're in the middle of a hectic renovation with an ancient HVAC system, half our exterior wall…read moreinsulation missing, and some drywall open to the outside. So honestly, I didn't expect an attic makeover ALONE to completely solve our heat problem. Investigate your attic and air leaks before spending quadruple+ the cost to upgrade the entire hvac. With almost fossilized attic insulation, passive inefficient gable vent and no radiant heat barrier, we've been sweating inside the house as soon as the sun was out. While they were working on the attic with the old insulation removed and attic door open, the inside temperature spiked to 80°F with the AC blasting nonstop. Once the new insulation and radiant barrier was in, even our obsolete hvac was able to keep the house cold that we had to raise our target temperature. Mistakes happen, but how a company responds reveals their true character. After the blow-in, negative pressure began pulling loose insulation through hidden gaps around our furnace closet ceiling, clogging our AC filter and choking the airflow. Following a long evening of emergency DIY sealing and cleanup, I reached out to explain the situation. Jim and a technician showed up the very next morning, sincerely apologized, addressed all questions and concerns, and mastic-sealed everything properly. They earned this five-star review because instead of getting defensive, they treated us like human beings, owned the issue, audited what was missed in their protocol, and actively improved their process to prevent it from happening again.

Heat Busters provided a top notch experience, insulating our attic and installing ventilation…read more Would highly recommend to lower your energy bills! Great customer service - thank you!

Michael M was absolutely outstanding! He was knowledgeable, professional, and kept me informed…read morethroughout the entire service call. He took the time to explain the problem in detail, what was needed to fix it, and how long the repair would take. I always knew what was happening and what to expect. What really stood out was Michael's genuine focus on customer service. He was friendly, personable, and clearly cared about keeping my family comfortable. While the repair was being completed, he even brought in portable units to help keep us cool. Michael did exactly what he said he would do and completed the work when he said it would be done. His communication, professionalism, technical knowledge, and commitment to his customers were exceptional. Great technician and an excellent representative of the company! I highly recommend this company for any HVAC service needs.

10/14/2026 McCullough's heating inspection was expertly done…read moreby technician, Marco Lopez, (included in our annual heating and cooling contract). Marco discovered a broken heat valve, and detailed the needed repairs. The need for repair was apparent to us since the heat did not turn on, and a Carrier alert was generated on the thermostat. With our approval Marco obtained replacement parts. He efficiently made the repairs the day after his inspection. Marco was very clear and pleasant in all communications. From our experience with McCullough's inspections and repairs since our 2018 Carrier system installation, Marco's work upholds their top of line service.