Terrific experience overall. Furnace wasn't working this morning and they managed to get someone…read moreout same day. Very honest and quick to remedy the issue. Shout out to Tony who took care of the issue in no time. Very friendly, good guy, and looks like I found me new go-to for HVAC issues. Thank you guys! Jason

We would never go with anyone else... Circulating Air has been servicing our A/C system for years,…read moreand although it is old, they continue to give us honest and trusted advice for keeping the system healthy and operating, until we need to replace. Just cannot say enough about the integrity, efficiency and promptness of this company. They are also extremely reasonable with their pricing.

When my AC was running but not cooling my house, I panicked as it was a Saturday and I worried…read moreabout being able to sleep in such a warm house. I reached out to HALO on Yelp and within an hour they let me know someone could be here in the afternoon. Chernet came out and diagnosed the issue quickly, replaced the capacitor in 5 minutes, and made double sure the air was cooling as it should. The price was very reasonable (especially for a Saturday) and the service was fast, friendly, and honest. I'll definitely keep HALO in mind for future needs!

I am so glad I found Halo HVAC through Yelp! My AC stopped cooling in a heat wave and I had many…read moreother companies quoting me $200++ for diagnostics or unable/unwilling to come out for weeks. I went to Yelp looking for a better option and definitely found one! Halo was able to come out within a couple days of contacting them and the diagnostic fee was $89, which was to be applied to any work performed if needed. it turned out it was a tripped breaker they were able to reset and my system is cooling perfectly again... for $89!! The most notable and appreciated factor for me is they didn't come in trying to sell me service plans, upgrades to my system or accessories, or otherwise upsell me on a well maintained and well functioning older HVAC system. Even when I asked for a quote on a heat pump to take advantage of the rebates while they last, Halo didn't push me to pick the most expensive option or upsell me on a pricier type of system. And icing on the cake - despite a lot of in and out while working on figuring things out, my technician was constantly putting on and taking off booties to keep my house clean. It's a small token of respect that goes a long way, and I very much appreciate it! I'll be using Halo and referring them to friends and family in the future!

All the technical team that installed our heat pump air conditioner were very knowledgeable,…read morerespectful and willing to take as much time as needed to explain our numerous questions.Shout out to Chad, Gabriel and Jonathan for your expert work and AJ for keeping our best needs #1 priority.to anyone that I didn't catch your name.Thank you for making us cool !

We have used this business off and on over the last 7 years and what I like most these days is that…read morewe have a really good understanding of my house and the issues that come up with it. I like that they track and document every service provided with photographs and that if they can send the same technician each time, they do so that person has a good memory of your situation with your home. They have always been prompt at returning calls and helping me figure out what I need. Even if their prices might be a wee bit high here and there, the peace of mind to know that we are being taken care of is worth it to me. I like knowing they have our house history, they have established a relationship with me over the years and I know that when they offer me options its not to just get all they can - there is a purposeful reason. If you are in a situation where you need an airtight service with a tracked repair history that you can look up in images etc, then this is a great place to call for assistance.

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.

A little over 2 years ago True Heating and Cooling installed 2 Minisplits in our home. There crew…read moredid an excellent job and where extremely courteous, we have been extremely pleased. Last week we had one of our units ice up and True sent out one of their technicians to see what was going on. Matt spent several hours and had to leave and pick up a part to repair our unit. He got the job done the same day in temperatures in the high 90s ! To our surprise when the bill comes, there was no charge! True did not even charge us for the service call! Our 2 units where just past the warranty and True stood by their product. True Heating and Cooling is top notch and I highly recommend them.

Had my first call with True Heating & Cooling today for basic maintenance. I was super pleased with…read morethe service and especially with the tech. Mark showed up on-time and was very personable and professional. I know it seems trivial, but a clean pressed uniform, eye contact and a firm handshake mean something to me. He explained the plan before starting. He showed me before & after photos when he was done and made recommendations for future work without trying to upsell the call. I really appreciate that! I ended up signing up for the Maintenance Plan which has them come back twice a year because this is the type of company I want to do business with. Would definitely recommend True!

My water heater was leaking the next day after I returned home from a 2 weeks trip. I called CT…read moreHeating at 8 in the morning and spoke to Todd, he came out to my house at 10 and by noon I had a new water heater.

What a wonderful, prompt and thorough company. My husband…read morewas out of town, we had no heat. I called them at 8, Todd was here at 8:45 and found a tennis ball in our heating line. Fixed the issue and constructed it so if it happens again, it's much easier to repair. Best of all the price was very reasonable. I am sure the other bigger heating company would have charged twice the price and probably would have convinced me I needed a new furnace.

CMS is now owned by Welzig. I really liked CMS for general service because they never tried to sell…read moreme anything, they just came and serviced what I have and kept it running in top shape. I hired Welzig once, and a CMS technician showed up to do the service. He did the work quickly and replaced my humidifier contactor pad for free, but then the selling started. Replace my perfectly good Honeywell thermostat with a smart controller ($500+) that uses forecasts from the internet instead of the house temperature to decide when to run. Clean the ducts for $1,000 (do they know about the ValPak $299 company?). Add a water alarm device for $500 (I already have one from a multipack I got at Costco for $20). Literally $10k in recommended "improvements", and they really really wanted me to sign up for a service membership. Sure I get my tune ups, but also a plumbing and electrical consult I don't need each year. I have no confidence whatsoever they wouldn't intentionally damage or fail to service my unit in order to get me to buy a new one. I'm a redneck engineer from the South. I'm used to chainsawing my way out of the neighborhood after hurricanes, building blast furnaces using old lawnmowers, and cobbling together whatever I'm wanting to make (chicken coops, rabbit hutches, fences, you name it) out of whatever scraps are laying around or free on Craigslist. I'm scrappier and more miserly than most, but for those like me who are inclined to open their condenser when it stops running instead of calling an HVAC company to spend $250 on diagnostics, this is not the company for you anymore.

They got bought out by welzig. I did not have a good…read moreexperience with welzig. Technician was smelly. Did not diagnose correctly.

Austin was dispatched to my house from a warranty company. After doing a incomplete diagnosis, he…read moremade the incorrect determination that the condenser coils were dirty and that caused the compressor to burn out. He didn't look at the evaporator coils inside or even put gauges on the system to see how much refrigerant was left. Had he done that, he would have seen the oil stained hole in the evaporator coil and there was very little refrigerant left in the system. The low pressure was the reason the compressor wouldn't kick on, it wasn't even burned out. Due to his incorrect diagnosis, the warranty company denied my claim. He actually called me a retard!

Service is great! Billing is weird and hard to understand. So if you're ok with not understanding…read morewhy you're being billed so much outside the insurance than this is the right spot

SAC Mechanical replaced my home furnace and did a great job. I appreciate how incredibly…read moreresponsive and just downright nice they are. I really like it when I can find a local and high quality service company like this. Many thanks!

Our heater stopped working so we contacted SAC Mechanical and Stan was able to come to our house,…read morediagnose the issue and get the heater running again very quickly. He was prompt, professional, knowledgeable, friendly and courteous--5 stars!

Balazs from Foundations Mechanical came out and did a great job fixing my air conditioner. He was…read morecourtious, professional and honest. Highly recommend!

From the owner: Foundations Mechanical Services is a local and honest HVAC contractor. Ready to serve your everyday…read moreHVAC needs! Foundations services both commercial and residential customers as well as commercial refrigeration. We are properly insured to Colorado business standards.