After 25 years, my Concord home needed a full HVAC replacement. I did my homework -- four quotes,…read moreverified equipment certifications, asked hard questions about duct sealing, zoning, and equipment sizing before deciding. A-1 answered every question confidently, corrected a spec error in their own quote when I caught it, and put everything in writing before I signed. Install day: Austin, Joey, and Edgar showed up on time. Floors covered, shoes covered, house treated well. Two days -- day one removal and new equipment, day two ductwork and zoning. Heating and cooling tested before they left. Full documentation handed over on the spot. No hidden charges, no surprises, no change orders. Price was mid-range among four quotes, but the warranty structure -- lifetime workmanship, no-lemon guarantee, payment at completion -- made it the best overall package. Still have HERS test-out and city inspection scheduled, but based on every step of this process I'd recommend A-1 without hesitation. Austin, Joey, and Edgar did a great job.

From start to finish, my interactions with A-1 heating were excellent. Polite, professional…read moreemployees who did a great job. I'm very happy with their work and would recommend this company to anyone needing their services. Phillip, in the office, was very helpful. Jake and Joe, the installers, were on time, neat, organized and knowledgeable. Good crew.

They certainly lived up to their hype! All personnel (Jason, Daniel and the 3 on the installation…read morecrew), were professional and accommodatin. The patience of Daniel as we worked out the unit we wanted and the costs was outstanding. And again we really appreciated the politeness and work of the install crew. I'd highly recommend them.

When my Ac stopped blowing cool air at the start of the summer, I found this company and Justin…read morequickly diagnosed the problem with my air conditioner, replaced the faulty voltage stabilizer, and recharged the system with new coolant. The AC is now blowing cold again and working great. Justin was very professional, explained everything clearly, and completed the work efficiently. I really appreciated his honesty and the quality of the service. I had a great experience with this company and would definitely recommend them. Thanks again for getting our home cool and comfortable again !

Simon did a great job helping us understand our plumbing issues was very informative and…read moreknowledgable, professional and nice. We would definitely use Jazz again!

Called Jazz to change out laundry bibs that were stuck, and they came out within a few hours. Gave…read moreme a price after looking at the work. Given that I didn't have to wait days for an appointment, I agreed to the price, which was initially high compared to others. That being said, it ultimately became roughly the same, if not a little cheaper, than other places that charged by the hour or quarter hour, as the job was a little more complex than initially thought. The guy spent almost 2.5 hours here to change out two bibs (again, way more complex than he probably thought), and he did a wonderful job. My problems were addressed same day, same visit. If I chose other plumbers, I would have waited days before my items were addressed. I've used Jazz before with my older AC unit, and they will always have a spot in my contact list if I need help with my HVAC or plumbing.

We've used this company for several projects over the years, from major HVAC installations to…read moresmaller maintenance and service needs, and have consistently had a great experience. They're responsive, easy to work with, and do high-quality work. We typically work with Noel, who is fantastic--knowledgeable, reliable, and always helpful. Would definitely recommend!

My AC blower stopped working so I called EHC. Eros came over in less than 1 hour (on a Saturday!)…read morebecause his team had done prior work on my system 3 yrs ago to replace a blower motor and he wanted to inspect and make sure it was quality work. Turns out the replacement motor was fine. The motor capacitor went bad. It was a relatively quick fix. Thank goodness, because its 95 degrees out this weekend! Thank you Eros and EHC.

Literally knew something was wrong when I turned on the AC and the thermostat kept going in the…read morewrong direction:/ had to call someone asap as I had family over too. Symon was referred by my realtor and was able to squeeze me in the next day!!! Figured out the problem, gave me some pointers on maintaining the unit, super nice guy, and now the family is not suffering in this heat wave!

Symond came out three days after my AC went out. On time ,…read morepolite ,well spoken I can't recommend another company more than symond and his family. He had to replace the Capacitor . Didn't try to upsell me on anything he showed me what the problem was and fixed. It don't call any other company But MARASIGAN HEATING & AIR thanks again Marc

I called and made an appointment but had to change it due to my work schedule. I said I would call…read moreback in a few days and did via text and never replied.

Gabe Thomas and Jay arrived on time, worked tirelessly to install a completely new Heating system…read moreto an 85 year old home in Richmond. I was impressed at every juncture of the 3 day process. They worked in tandem, always happy to be there and when they finished they left a warm home, clean area and me, a happy/warm person...smiling and getting comfortable. This was a big job. Gabe was highly recommended via Bridges 8 Real Estate in Berkeley. I understand why. They know what they're doing...and do it well. Thank you Gabe/Jay at Heating & Cooling Solution. D. Gastis

From the first point of contact to when they pulled away. Golden State Comfort Systems made my…read morefamily and I feel like we mattered. While we requested estimates from multiple providers, we found Golden State to be the most comprehensive estimate. They even kept us from overdoing our system! Another company attempted to upset us on a massive unit. So glad we steered clear. Greag saved us money, and kept us cool! Thanks again Greg! You guys are great!!!

I'm happy with the service they provided. The guys were very professional and honest . I will…read morecontinue to use them when needed in the future.

My ac was no longer blowing cool air. The unit is under warranty. So I called Monarch, where we…read morepurchased the unit. They were late and then told me they couldn't get there until Monday, 5 days away. Insisting this needs taken care and can't wait. They finally showed up. First they told me I needed to expand my ductwork, that the unit was too much for the current set up. I said, you mean the unit you guys sold us? That was going to be around $17 grand. After getting past that nonsense he tells me it was going to cost $3800, minimum. Told monarch I was getting a second opinion, that's way too much money for a new unit. Called Lara's, they came the next morning and for $890 I had my ac back. Most of that was Freon. Both workers were very polite and had everything fixed and tidy in about an hour. Thank you Jose Stay far away from Monarch!

If you're looking for professional service not just another appointment to check off the calendar…read moreJosé and Daniel are the guys. Jose and his brother Daniel were quick to respond with a direct answer for my inquiry. They worked around me and my husbands schedule. We needed to have our AC services and have our dryer duct cleaned. They gave us an initial quote and set up a time to come and evaluate the job. They gave us a couple different options but weren't pushy about what needed to be done vs what needed attention.

I give them We had…read morea fantastic experience with GG Heating & Air Inc. The service was excellent from start to finish. He is extremely knowledgeable and took the time to clearly explain what was going on with our HVAC system and what needed to be done. He worked efficiently, made sure everything was completed properly, and didn't rush the job. It's clear that he truly cares about his customers and the quality of his work. The pricing was also very reasonable, which we really appreciated. He not only repaired our home air + heater device, but installed our smart thermostats and made sure the app was properly installed and running on my phone. This is the model we used: https://liketk.it/5J3Us If you're looking for someone honest, skilled, and dependable for HVAC repair or maintenance, I highly recommend GG Heating & Air Inc!

Israel and his team did a great job replacing all of the heater ducts and boots at our house. They…read morewere all pleasant and the price was reasonable. We highly recommend them.