I've been an annual maintenance customer for over two years and am very happy with the service…read more Our furnace is newer and high efficiency. Our AC unit is over 20 years old. The team has never tried to upsell and has always walked through every recommendation without pressure. Only once did we need some tuning that resulted in fees beyond our annual maintenance costs. The techs are friendly and knowledgeable. The email and text notifications are timely. The office staff is flexible with schedules and gives us plenty of notice to plan the visits.

They were super nice, very helpful, and a joy to work with. They made things easy. No fuss.read more

They were friendly, professional, fast, and explained everything to me that they were doing and…read morewere going to do. And there was no surprise costs! I trust this company!

While the technicians themselves were friendly, my overall experience with Summit was disappointing…read more-- particularly given that they had been highly recommended by a neighbor. After the fourth visit and two failed inspections, I asked to speak with the owner. He said he'd show up on the final day and didn't. Not showing up after committing to do so speaks volumes. On multiple occasions, employees attempted to -- or did -- walk through my home beyond where work was being completed with their shoes on. This is a basic courtesy that should not have needed to be addressed. On the final day, an employee complained about the time spent waiting for the inspector to arrive. After five+ weeks of doing exactly that myself, I couldn't help but laugh internally. Most importantly, Summit advertises a "100% Right or 100% Free" guarantee on their website. These are not complicated words -- 100% means 100%, and free means free. There is no secondary meaning to either. When I raised this, I was told it essentially means they will keep trying until the job is done correctly -- which is admirable in theory, but falls well short of what "100% Free" implies when a customer has invested THOUSANDS of dollars. After reading the other reviews, I'm hoping the problem with my AC wasn't just a leak somewhere that could have been fixed for much less. I would strongly encourage potential customers to clarify what that guarantee truly means before signing a contract, and to get everything in writing.

My elderly father recently had our childhood home updated with a new furnace, water heater and AC…read moreunit. Audy and his team took immense pride in making sure this job was done in a reasonable time and explaining all the things that were changing with the new setup. This is my second experience with this company and I appreciate how Audy runs the team. My father didn't realize what a difference it would make getting AC in the house I grew up in when there was no AC unit. I don't have to worry that the house will get too hot for him during these Colorado heat waves. This team went above and beyond and I hope it continues on for future customers.

Excellent customer service. I called to schedule service on a rental property that was blowing cool…read morebut no longer cold AC during a heat wave. I was put on the schedule for the next available appointment and also given tips over the phone by Audy that might resolve my issue myself. And it absolutely did!!! no appointment needed. It's rare to find that level of service and support. You have earned a loyal customer. I will definitely be calling again for all my future HVAC needs.

Fixed in 30 minutes. JB did a great job! Diagnosed the issue right away, had the parts to fix it…read more It is now nice and cool in the house.

I had a weird smell coming from my ac. Granted Thats probably the most vague complaint business…read morewould receive. Either way I wanted to get my hvac maintenance service. Received a flat quote of $89 for 25 checklist items that they would check and inspect. I guess I misunderstood the term maintenance service versus diagnostic quote. The tech spent less than 15 min at my house to come up with 3 possible (not definitive) solutions for cause of ac smells. Then emailed me one of them pretty much saying I needed to replace my whole vent system. No actual work was done on thìs visit . Even the ac cleaning would needed to be a separate appointment and charge. So just be cautious n aware of what service you're looking for.

The technician, Chris H., was clearly experienced and knowledgeable without being arrogant about…read moreit. Gave an honest assessment of my broken AC, along with reasonable options. Prices were in line or below competitors', and they stand behind their work. Plus, my dog instantly liked him, despite usually being averse to guys wearing hats. Bottom line: I'd recommend them without hesitation.

I would highly recommend Efficient Comfort for any HVAC needs! My parents experienced a valve leak…read morefrom their humidifier that was connected to their AC and heating system at my childhood home, and the team was incredibly professional and quick to get the issue resolved. They responded to my quote request within an hour and made scheduling easy. We contacted several other companies, but they were either more expensive or couldn't come out until the following day. Efficient Comfort was able to come the same day, diagnose the problem, and fix everything at a very reasonable price. The entire experience was smooth from start to finish. Their responsiveness, professionalism, and fair pricing really stood out. I highly recommend them to anyone looking for reliable HVAC service.

Gerardo was able to quickly fit me into his schedule to address an issue I was having with my…read moreceiling fan. It was a simple fix and he helped save my sanity. Thanks Gerardo, we'll be sure to use your services again!

Did I get an off day? My A/C was cutting off intermittently and I asked them to come by. They did…read morefind out the problem after a bit, but didn't want to do any maintenance on the unit because of a bush? I easily cut the bush in 5 minutes, this wasn't a crazy bush. I understand the maintenance wasn't scheduled but I've never had a company turn down additional work while onsite. I also asked for a mini split quote and they didn't look at the attic access at all to see what was possible. It's a tight space but inspectors have been up there. Their solutions just didn't seem like they wanted to do the work. Quote at $15k. I talked to a contractor the following week and he said that the attic space would be sufficient for someone to go in. They did come on time.

Fantastic service. Sean was able to give me a quote quickly and at a very reasonable price…read more Scheduling of the installation was very timely. His installation team of Mario Sr and Jr and Kevin made short order of installing the new furnace and AC. They were extremely nice, worked quickly and professionally and left with everything looking great. We are very happy with the new unit especially since it's been so hot. I would defiantly recommend Roots to anyone. Give them a call you'll be happy you did

I interviewed several companies about getting my 37 year old AC replaced. Roots was the best by…read morefar: Sean (co-owner) took the time to explain all options thoroughly installation was timely; Mario (head of crew) was very knowledgeable about the entire installation; the crew was clean and tidy. At the last minute, they even managed to replace a badly damaged furnace at the same install. They are very competitively priced. I highly recommend them and would give more stars if I could.

Requested an ac unit general maintenance, response took 3 days, and that response was "unable to…read moreservice". Maybe he's too busy to spare the extra words, guess I'll find someone else. edit: owner responded back to me promptly after I posted this review and explained his circumstances. I appreciate the effort made.

Super fast and reliable!! Great team. Danny solved my problem almost instantly, he was in and out…read more Will be exclusively coming to them from now on.

I interviewed many AC / Furnace contractors after our AC went out and the furnace needed to be…read morereplaced too; it was on its last leg. I got the recommendation for Controlling Systems through ChatGPT and they didn't disappoint. The sales process best of the bunch. Chris, our sales rep. took the time to do a manual J measurement throughout the house to ensure we were getting the right system for the house, which none of the other contractors even considered. After showing me all the options, we went with their RUUD top of the line system which came with a multi stage furnance, variable stage AC, and a heat pump. They applied the rebates offered by Xcel, so we didn't have to wait for the rebates, we just signed over the rebates to them during the sales process. The installers were top notch, kind, and ensured they took good care of our home. I couldnt be happier and highly recommend them. From a price point, they came out thousands less than the closest competitor, and I'd note the closest competitor wasn't willing to do a transfer of the rebates. We would have had to claim those after the sale.

So few companies will even do mini splits, much less demonstrate true expertise in the technology…read more Rudy and the team designed and installed an excellent system to heat and cool our garage and home office, completed the job ahead of schedule and for $2500 less than my nearest quote. There was a slight deviation from the equipment in the quote and what was installed and I wasn't even worried. Three weeks later I got a call that they had the part and they installed it! Being true to what they commit to, even if I wasn't bothered by it, seems to be their culture. Thanks!