DJ was awesome in giving me a second opinion on repairing my AC over the phone. Dominic was the technician doing the repairs was professional and explained everything in detail. Miller's came in at half the price of previous quote. Highly recommended read more

We had a faulty furnace with a bad inducer motor, and after a truly disappointing experience with another HVAC company (rhymes with Spaz), I found Millers -- and what a difference. From the first call, Kelly made scheduling easy and pleasant. Dominic (hope I'm spelling that right) showed up right on time, quickly diagnosed the issue, confirmed the part was in stock, drove to their warehouse to pick it up, and had our furnace fully repaired the same day. The service was fast, professional, and priced very reasonably. I'm seriously impressed -- I'll be calling Millers again for any future HVAC needs and recommending them to everyone I know. read more

After the previous company failed to complete our Furnace repair we asked our SIL for a recommendation. Miller's AC & Heating was my first call, I requested they repair our Dual Heating System. They had an appointment the very next day. Tony arrived early. He immediately understood the problem with the dual system. He skillfully set it up so it would work while he ordered the part required. He explained everything, was super friendly, quick, and efficient. We are excited to have heat while we wait for our part to arrive and be installed. Toni was a pleasure to work with, and we look forward to a fully functional Heating System. Sonny finished the job today...he was a pleasure to work with. Our builder did not mark any of the components, fortunately he solved the puzzle, and we now have a fully functioning Dual Heating System. I very highly recommend Miller's Air Conditioning & Heating...A++ read more

We've had Miller's HVAC out to our home three different times now, and every experience has been excellent. Our first couple of visits were with Sonny, who is truly outstanding. He really knows his stuff and helped us sort out several AC issues in our older house. He topped off the freon, replaced worn parts, and made sure our system was cooling the way it should. My dogs love him too! More recently, we hired Miller's to replace all the ductwork under our home. The crew of three techs (Sergio, Guy, and I can't recall the thirds name) showed up on time, took thorough measurements, removed the old ducting on day one, and came back the next morning to complete the installation. They were professional, respectful of our home, and even caught a popped fuse on the AC unit that they fixed right away. Everything was running perfectly by the time they left. The owners, DJ and Kelly, are great people, and you can really feel that this is a local small business that takes pride in the quality of their work. Friendly techs, clear communication, and clean job sites every time. Highly recommend Miller's HVAC for AC repairs, ductwork installs, or any HVAC service you need! read more

Our AC stopped working and we called Miller's the next morning. Sonny got here the same day, went right up into a hot attic, identified the problem (dead capacitor), and resolved it on the spot with a replacement from his truck. Service was efficient, friendly, and professional. We will definitely call Miller's again next time we need help with our AC. read more

Long story short, I had many issues after a home warranty company handled a replacement & move of my furnace. I had Miller's do the many repairs that needed to be done and they were great. Alan was my project manager and he reviewed everything that needed to be done and he made sure he was here for thr final inspection. Billy and Pablo did all of the repairs and cleaned up so well you'd never know they were there. I highly recommed Miller's. ​ read more

Miller's just replaced my heating and A/C system. Alan, who came out to give me the bid, was polite, professional, explained what they would do and answered any questions I had. The bid was very reasonable and he scheduled the job within days of me receiving the bid. The three men who did the install were very knowledgeable, polite and professional. I can't believe the difference in the performance of the new equipment compared to my old furnace and A/C. Miller's is a quality company and I would highly recommend them to anyone looking for a new HVAC system for their home. read more

Quick and friendly response and they sent a very kind and experienced person out the same day! Having our heating fixed was such a relief. A trustworthy and honest service! read more

I work with a lot of services companies in my business and the first thing I expect is promptness. The technician Sonny arrived on time and was very professional. He listened to all my concerns before he began and answered my questions through the process. The Maintenance service was very thorough, and he provided me with all the readings in a follow-up discussion. I would highly recommend Millier's for HVAC to friends and clients. From the office staff to the owner and the technician, all very helpful, accommodating and knowledgeable. read more

An overdue review! Miller's provided top of the line customer service, clean work, and a quality product at a competitive price. I would definitely rely on them again for future HVAC needs. read more

Last week I arrived home from a trip to find my furnace was out. After doing some investigation I was referred to Miller's for their customer centric service approach. Kelly was so supportive throughout the entire process, quickly helped me get an initial assessment and worked with Sonny to diligently with multiple vendors to track down the part I needed and have it expedited. Kelly even sent out space heaters for me to use while waiting for my repair! Sonny came out today and did a great job on the install. He found after installing the controller board there was another hidden issue, got the part in the same day and completed my repair. I am so grateful for the excellent service! read more

I felt the solution they offered was the best fit for my budget. The Bryant line they sold me provided the efficiency rating that best met my needs for a new heater and AC. They were clean and protected carpets etc. I had some questions after install and they sent a tech out to confirm all was good. read more

Miller's came today to do annual maintenance on my Air Conditioning and Heating system. They arrived on time and completed the job in about 30 minutes, Very friendly and went above and beyond by cleaning out my gutters which they noticed were being weighed down by sand from my shingles, probably because of all the wind we had last week. They swept out my gutters with my garden hose and then gave my car a quick wash, No extra charge! I'm overwhelmed with their customer service. Thank you Miller's Air Conditioning and Heating. Paula G. Livermore, CA read more

Replaced my old HVAC and gas furnace with a Bryant heat pump and air handler. Millers pricing was very competitive and they are a very responsive company. Installation was done well and passed title 24 test requirements. read more

Millers has now done 3 systems for me and a few repair jobs. I recommend them highly due to their fair pricing and extremely high quality work. They really care about their customers and I have found that rare in the HVAC business. read more

great experience with Miller Air Conditioning and Heating. Our heater stopped working in Dec. We had a tech come out to look into it, In the end we needed a new heater. Miller got us scheduled ASAP and got it done. We will definitely be calling Miller for our air and heating needs in the future. read more

Woke up noticing the house was warmer than it should have been, but it was Saturday and we had plans. It wasn't that bad so I decided to wait and see. Got home hours later and the house was 86 degrees! I called up Miller's and they said a technician would contact me soon. Sonny immediately contacted me to let me know he would be out here as soon as possible, he just had to finish at another house. Upon arrival, he was very friendly and professional. Most importantly, he diagnosed the problem immediately and completed the service in record time. So happy I called Miller's! Thanks, Sonny! read more

Miller's has been doing bi annual servicing on my hvac system for about a year. Nothing but good things to say. Thank you!

Miller's replaced my 19 years old HVAC with a new more efficient 2 stage HVAC back in 2018. They did a great job and the furnace in the attic and the condenser unit outside worked great. 7 years later, yesterday (Sunday), the AC stopped putting out cool air all of a sudden in the afternoon and it was 95 degrees outside. I called Miller's at about 6pm and they were able to have a technician to contact me. Sonny, the technician called me a little after 8pm and told me he could be at my house in about 20 minutes to evaluate the unit. He arrived as he said and he found out the capacitor went bad and he replaced it. The capacitor was covered under the manufacturer's 10 year warranty. So I only paid for the labor including the extra for after hour/emergency service and the cost was absolutely reasonable and better than I expected. I am glad that Sonny was able to come diagnose, and fix the problem not just at night but Sunday night and the next day (today) is Labor Day expecting to be 97 degrees weather. Thank you, Sonny for being friendly, professional, and knowledgeable. Sorry that Sonny had to work so late on Sunday night. We greatly appreciate him. Thank you. read more

We decided it was time to replace all original AC/furnace and got a few quotes. Miller's was the most competitive and DJ was very professional in walking us through all options, etc. His team was very diligent and completed the work in 2 days. We are very happy with the install and service that the team did. DJ even sent out Sonny to check-in on us the next morning when we had a question about airflow. Sonny was super knowledgeable and checked everything out for us to confirm everything is in working order. We really appreciated Sonny for giving us his direct contact as he mentioned he lives close by too. Thank you all very much! read more

Miller's did a fantastic job installing new duct system in the attic and replacing the old AC with a dual system Heat Pump. The team of Sergio, Benny, and Anthony worked diligently during a major heat wave to complete the job on time, so AC was functional for the weekend. Any minor issues were handled quickly by DJ and resolved beyond my expectations. If you are looking for a company that provides quality work with superior customer service, AND really cares about their clients, I recommend Miller's Air Conditioning & Heating. read more

Miller's always takes care of all my HVAC needs. Sergio was here yesterday and his work was very meticulous! DJ was great communicating and keeping me up-to-date. read more

Our upstairs AC with Nest thermostat wasn't cooling. After exhausting basic troubleshooting steps , I set up an appointment with Miller's. It was Apr and I was able to get an appointment in 2 days. Sonny came out , root caused the issue very quickly, and luckily there was no expensive repair or replacement needed. Very fair cost for his time. I appreciated Sonny's honesty . Sonny also wore booties in our home without being asked which I also appreciated. Thank you again Sonny. Miller's is my go to and will refer them to neighbors and friends. read more

Miller's HVAC in Livermore, CA, failed to follow through on a promised call back after taking a service request. This lack of professionalism has eroded trust and credibility, leading to a negative review and a lost customer. Reliable HVAC businesses project trust, credibility, reasonable prices, professionalism, and customer satisfaction. Regrettably this is not what I experienced when I contacted the business on 12/10/24. Dr. Juan Espinosa read more

Sonny is a gem! On time, thorough a/c tuneup, all around great experience! So kind & professional ! One recommendation, but not pushy at all, refreshing. Thank you Miller's for sending this guy to our house! read more

Another company had come out before Miller. They had told me my ac is out of coolant and needed r22. And said r22 is no longer being offered. Best just replace the unit. So I called around and found out that Miller's air conditioner company still carried the r22. Miller's had a tech came out who was very helpful. He tested everything that needed to be tested and gave me a true diagnosis. Turn out, I didn't need any cooolant. There was just a burnt wire that needed to be replaced. Didn't try to sell me anything. read more

It's too bad there isn't an option to give 6 stars - I can't say enough good things about this company and its employees. Sergio and his helpers arrived when they said they would, they immediately got down to business and worked their magic Sergio is friendly, polite, professional and knows his stuff. I consider myself very fortunate to have met him. I have no hesitation in recommending him and Miller's to anyone. read more

Had a heating issue where all thermostats went dark and I couldn't turn on the heat. Miller was able to send Mike over who knew exactly what the issue was and have the fuse replaced, which got it all working. read more

Our HVAC system was from the late 90s and starting to fail. Miller's provided great advice and thorough explanations about our replacement options. Another company just quickly looked at our system and emailed a proposal, not bothering to talk through anything at all. After deciding to go with Miller's, we made an appointment for work to start in late March. We lucked out because the weather was nice enough not to miss having heating for a few days. They did offer to temporarily give us a space heater in case. Everyone involved was very professional and the work took about four days. The ducting ended up needing to get replaced but the contact was honored and we weren't charged extra. Miller's has been around since 1960 and has a great reputation in the Tri-Valley. The HERS inspector who came out said he never has problems with any of their work. Would definitely recommend Miller's to anyone looking for a reliable, family-owned HVAC company. read more

Millers came out the next day, gave me an amazing quote for a new heater and to add AC. The started the job the next Tuesday!! The guys were very nice and professional. The value is impeccable!!! I so should have done this 10 years ago!!! It's a local business and we live to deal with local companies and not big box stores when ever possible. Thank you Mr. Miller and crew, for making my house so nice and cool and being ever so careful!!! read more

From the onset had a pretty good experience. Price was competitive for total hvac replacement of furnace and air conditioning. We had several quotes went with millers. The bad part for a 13k cost of unit was when the actuator for dual zone air ducts in upstairs downstairs system went out. What I found out is they did not replace the actuator motor on my system. The actual manufacture date on the actuator was 1991. So basically to use a new car analogy, I paid for a new car and they chose to put my old car battery in the new car. Who does that, that is not right. When they made a call to check and diagnose, $75 visit to tell me that part is out , well no kidding. The company that made the part in 1991 has been gobbled up by bigger company and of course the part was difficult to replace since it was circa 1991. If they found the part it was estimated to be $400 - $700. I chose not to use Millers at all to fix, pissed me off so much. I went to someone else to fix I think my 13k was enough that I paid and then to have old parts left on the system. That said, if you are purchasing make sure every single part is pointed out to be replaced a list is made and checked off when completed. Supposed to be hiring a quality contractor, I guess let the buyer beware and read up on hvac to confirm what is being paid for is being done. read more

We called Miller's to replace our aging 45-year-old heat/air ducts that were damaged and leaking. They responded quickly. Mike LeGate did an inspection and gave us an estimate that was competitive if not better than several others we received. We chose Millers as we have had them replace 3 furnaces and 2 air conditioners in houses since they first installed an air conditioner 47 years ago in our house in Pleasanton. The installation crew arrived on time every morning. Nelu, Mau and Sergio were very professional and knowledgeable and pleasant. They protected everything in their path with plastic drop cloths. Nelu explained what to expect and they wasted no time. The job was completed in 2 days, and they cleaned up thoroughly both inside and out. Miller's business office is also very helpful. The phone is always answered professionally and pleasantly by Janelle who responded to our needs. Thank you, Miller's! Lou and Anita S. read more

Fair pricing with the services and diagnostics. Very thorough and detailed. Explained all the problems with the 36 year old unit and actually fixed the issue read more

I've had two really positive experiences with Ori Miller's, once when my AC went out in the middle of the crazy heat wave in September and once when my heat went out in December. When the AC went out, Miller's was the only one of around 10 companies I called that could get someone out that night, which was a big deal because it was 92 degrees in my house and I had a hip surgery the following day and wouldn't be able to deal with it then. Ori came out within half an hour, quickly diagnosed the problem, and helped us get it fixed and get the AC back up and running before we roasted. When the heat went out, I immediately called Miller's again. Ori came out quickly and figured out the issue, but it was unfortunately not an easy fix and would require a part that had to be ordered. He sent me a quote the next morning, but my landlord had decided he wanted to try to get it covered under warranty. Ori told me what my landlord would need to do to get warranty coverage so that it could get done as quickly as possible because he was "concerned about [me] not having heat." I really appreciated the care and concern he showed even when my landlord was going to have someone else handle the problem. And he even asked how my dad (who'd been visiting when the AC went out) was doing. If it's up to me and not my landlord, I'll call Miller's and Ori every time. read more

For the past several weeks we heard a noise in the attic every time the AC would turn on. We called Millers to come out and diagnose the issue. The tech was helpful, completed his diagnostic and explained the situation. We needed to replace 2 dampers, the zone board and two thermostats. He said that the estimate to complete the work would be sent from the office w/in the next couple of days. We received the estimate and it was $7,400, which from the research I had done was significantly higher than it should have been. I also contacted the company and asked if they would provide me the the parts vs. labor break-out, which they never responded to. Fortunately, we contacted two additional companies and asked them to provide quotes. For the exact same work, both of the companies quoted between $2,800 and $3,200. Both are very reputable and well known companies in the area. Miller's was 260% higher than the lowest bid and 230% higher than the highest bid. This is ridiculous and should be illegal. There are many people that don't think to question the quotes that a company like Miller's provides and they just pay the money because they need to have their HVAC system working for their family. Shame on you Miller's. This is price gouging at its worst and I ensure you that I have already started to share this story and will continue to do so. read more

I had fallen victim to a "deal" by a country-wide cleaning company that threw in an AC service for under $175. The "technician" barely touched the unit. I engaged Miller's A/C and their Technician completely spray cleaned and sanitized the whole unit as well as checked the tempeture and unit for leaks. We had added a UV sanitizing light 3 years ago that needed to be replaced. The unsatisfactary technician ignored it. We will stick with Miller's for any and all AC needs. read more

Quick courteous response, on time arrival, accurate diagnosis,, effective fix and one year warranty.

We had DJ from Miller's come out to give us a quote to have both our heater and air conditioning unit replaced. DJ was very friendly and he told us what they will be doing during the process and he also gave us a quote before leaving. I had another company come out to get a quote as well, which cancelled on us for our first appt so we had to reschedule a week later. He wasn't as friendly as DJ was and he didn't explain anything at all, when I asked for the quote he said the company will email it, nothing at all on the brand etc. After he left I already decided that I wanted to go with Miller's because of DJ's friendliness, professionalism and knowledge on the HVAC. I told my husband that I want to go with Miller's even though we didn't have the quote yet from the other company. We did wait for the estimate from the other company which was a little lower than what Miller's had to offer but we still decided to go with Miller's mainly because of DJ's approach when we first met him and he explained to us the brand of the units and other information. The guys who replaced the units were very friendly and professional, they arrived on schedule and they finished earlier than expected (4 1/2 hours) , they wore shoe coverings as requested and the area was perfectly clean when they were finished. We are so happy that we chose Miller's! Mr. Miller you have a great team of guys working for you! I HIGHLY RECOMMEND MILLER'S!!! read more

The technician only checked the outdoor unit, spent 5 minutes, refused to investigate further, and was very rude. He also lied about the wait time. I suspect he may be a scammer and I felt sorry for the owner. The owner came to our door to resolve the issue (reson for not giving 1 star) and promised to come himself but had urgent issues, so I decided to find another company. It's frustrating that we waited a month in heatwaves and had such a poor experience with Miller. read more

never respond to email and only keep calling you. when you return or try to reach them, the phone is always busy. Very difficult to even get a quote and discuss what you need. I talked to one of the person, but there was no follow up and "disappeared" I am not able to get any service from them. read more