My husband and I needed to get our ancient HVAC ducts replacements since they were full of holes…read more John from High Performance referred me to Tri-City as the only company that he'd trust to do the work. Let's get real. It's really difficult to find companies that will do honest, quality work on your house. I'm sure we all have stories of not so great experiences. HVAC work is expensive so getting it done right is paramount due to the cost of the investment. To sum up our experience with Tri-City: this was one of the top experiences my husband and I have ever had with any vendor doing work on a home in our entire life. In an effort to do some due diligence on my part, I contacted 2 other HVAC businesses which had top ratings on Yelp in my area. Tri-City and these other 2 HVAC companies all met me in person to do look around to quote the work. I took many notes on each of the visits to record what each of the companies was recommending, along with other professional tidbits that they shared to demonstrate their knowledge. Selecting Tri-City as a vendor was a total no brainer for us. From the get go they were friendly, forthcoming, honest (which is so key), and professional. Out of all the vendors they were the only ones willing to REALLY look around in an effort to assess the work properly. They pointed out a few things we hadn't even noticed about our ancient system. From the beginning of our meeting it was clear they knew what they were doing and what they were talking about. With each of the 2 other top HVAC companies (which I won't name in this review), I had caught them being dishonest in their assessments. Each company lied about certain things in an obvious attempt to upsell work. Queue major eye rolling. It was really entertaining to see them suggest work be done which didn't make sense or make up lies about current/upcoming restrictions of what we can/cannot purchase in our county. When these lies came out I did my best to put on a poker face/act normal even though it just didn't make any sense. So although the other company's quotes were lower than Tri-City I didn't trust their estimates/quotes and knew I'd have to deal with major BS once work commenced. The likelihood I'd get surprise additional costs was pretty high which ultimately made all of the quotes even in cost between all 3 companies. The used car salesmanship attitude from these companies which were supposed to be "5-Star" companies only solidified our decision to hire Tri-City. Tri-City never attempted to milk us as a customer and we both greatly respected their transparency. They're real honest businessmen who stand by their work. That decision did not disappoint! Since we had asbestos wrapped ducts the abatement company Tri-City teams up with came first to take out all of the old ducts. Just like with Tri-City the asbestos company was professional, on-time, and clean. The work was done well and I appreciated that the company really made an effort to be careful with the dry wall around some of the wall vents. We were concerned that we'd have to do major patch ups of dry wall but in the end didn't have to b/c of how meticulous they were. Tri-City came in each day, completed quality work, and kept me abreast of their progress. When my husband requested pictures of their work in our crawl space they happily did that with no questions asked. They went out of their way to pick up new filters for us as the ones we had weren't optimal for our system (which we didn't know). Also they did an incredible job installing 2 new wall vents in the bathroom which is finally allowing heating/cooling into our bathroom! The caulking was done so well. The sign of a really great business is when they leave your home as clean or cleaner than when they came in. Each day Tri-City left our home spotless throughout the multi-day project. Our system is working so much better with the new ducts. If we ever need any installation work done in the future we will not hesitate to reach out to Tri-City for help. Thanks for the awesome HVAC work you did for us! We are truly happy with the work.

Steve and team are the best. I rarely write reviews unless I am truly impressed with the…read moreintegrity, skill, and professionalism of the people I worked with. In this case, I highly recommend Tri-City. Some of the best people I have worked with and I am 100% satisfied with their work, from start to finish. They made my furnace replacement a painless experience.

The a/c technician, Brandon, did a great job. He was professional and explained what he was doing…read moreduring the diagnostic check. He compared his results with factory specifications and explained it to me. He was thorough. I will use this company again.

1 star. Used there services for a HVAC replacement. The install team was nice but they had to come…read moreback multiple times to complete the task. I would caution the customers that Contra Costa Climate is not up front when it comes to billing. Be prepared for shady work and multiple visits.

Soto HVAC has helped my husband with a couple of split system set ups over the years. William is…read moresuch a nice guy...professional, knowledgeable, quick to respond and delivered great service. Don't hesitate to hire Soto HVAC for your new split system.

Mr. Soto was great. Came right over and diagnosed the problem. He gave me a fair price to repair…read moreand fixed our problem quickly. Mr. Soto was professional, punctual and reasonable. Could not ask for more.

Thank you. Abdu was able to sent the technicians over right away in a very hot day to fix my…read moreheating/AC unit. The technicians are great!

Our two-story house only had one HVAC zone with one thermostat installed in the hallway upstairs…read more It was very in inefficient and ineffective in making our house comfortable. We called Royale Air to give us a plan to install 2-zone system, replace our old thermostat and potentially some ducts, install 2 Nest thermostats and 3 Temperature sensors across the house, and clean the ducts. Abdu gave us an estimate that was reasonable but most importantly tailored to solving our problem as opposed to adding more services. We agreed to his estimate on the spot. We were aware of how much our neighbors spent on similar services. We were put on schedule for the work to be completed which took a bulk of a day. Crew came in on time, respectful of our house (shoe covers, floor covered, clean ladders, etc). Abdu continuously consulted with us when things weren't as straightforward (like possibility of running wires from attic to main floor). Work completed on time. Crew cleaned up the place as if no one was there. Abdu called us few days after to check if we had any questions. Family owned small business. Honest and personable. You can't beat that.

I received 4 estimates for a full replacement HVAC system, and Mike's was by far the best. What is…read moremore, Mike was prompt, professional, and paid attention to detail. He was happy to give us multiple options to select from at the best price. The installation was completed quickly and very professionally. We are very happy with the system, and would strongly recommend Bay HVAC Alliance to anyone in the market for a new quality system at the best possible price and with excellent service to match.

Bay HVAC Alliance and air conditioning is simply the best. Upon recommendation i called them to…read moretake a look at our system that is pretty old. They arrived on time and had a great attitude. They did an amazing job of explaining everything about our system and what it will take to replace it. This will be the company i will use for service in the future. Thank you!!!

Connolly replaced my 30+ year old furnace and air conditioner. Original was a 100,000 btu . They…read moredetermined an 80,000btu furnace and 4 ton ac would meet my needs. So went with basic Carrier units. Pretty close to previous equipment. Very satisfied with the work quality, pleasant fellows to meet and have any questions I asked answered. I would highly recommend Connolly HVAC to take care of your HVAC needs.

I previously had unpleasant experience with Connolly in 2022; viewers can see my extended remarks…read more On 9/22/2026, their tech visited re: heat pump water heater repeatedly shutting down. The service call itself seemed high, but I had no reasonable comps and did not balk. Tech was on-site nearly 2 hours, trying to troubleshoot; I had no fault with him. Conclusion: faulty MSP breaker. "Cost sheet" price to replace: nearly $500. WTH! Called Connolly, was told that was the price; tech himself said the price included built-in labor. The part itself from nearby hardware store: under $25 including tax. I declined the install and dispatched the tech. The tech was already on-site; with experience, should have taken under 10 minutes. $500 was over-the-top EGREGIOUS. Pigs get slopped, hogs get slaughtered. I cold-called a local electrician who said his rate is $300 first hour. Local hardware store referred me to an electrician who sometimes works there. His rate: just $125. Based on my experiences, I will do no further business with Connolly. For any future service required, I will use other sources. Connolly customers should consider my negative experiences and rip-off pricing. Curiously, the water heater is working ... sans replacement breaker. When-if fails again, with benefit of YouTube videos and guidance from a friend experienced with electrical things, I will replace the defective breaker myself.

Derrick as always our thank you for coming at your earliest to service and returned to recheck not…read moreonly ours and my mom's air conditioner units during latest heat wave in preparing for summer heat. Your expertise knowledge experience was way over my head and Mike 45 years with MBBenz as technician specialist trouble shooter and foreman likes to be home when your here to ask questions, relish and share your incite, experience and knowledge, were grateful for your dedication over the decades, you give us peace of mind, highly recommend all to call Derrick, AlwaysAloha to you&yours...

Our furnace went out on a frigid Friday night. Derrick came over and gave us an estimate on Sunday,…read morestarted installing the replacement furnace on Tuesday and finished on Wednesday. He was professional, courteous, and quick! We're very pleased with his job.

I cannot say enough great things about the service I have always received from this company, its…read moreemployees Chris and Zack and the owner Sean Mergy. They have been to my home on several occasions, both for heating and air conditioning issues, and the problems have always been solved before they left. The service is friendly, efficient and skilled. It seems all of the aforementioned employees and owner go out of their way to solve the problem for which their services have been requested. Margot S.

This review is way overdue. I have to say that Sean and associates are amazing at what they can do…read morefor HVAC systems. I've had Sean help with my Furnace on multiple occasions and install an AC unit and both are exceptionally solid! 1. Sean installed my AC unit in 2006 and it is still running like a champion. I've never had one issue running it from 2006- present. 2. I've had Sean examine my furnace and he does a serious evaluation of making sure everything is good to go. 3. One time my furnace igniter broke and my furnace was making this weird clicking sound on the coldest day of the year. I called Sean and he promptly told me he would send an associate out the following day. Once on-site, they got the issue solved and replaced the igniter. I cannot thank Sean and associates enough for the dedication they have with HVAC systems! I HIGHLY recommend Sean to friend, family, and most of all fellow Yelpers!