Top notch in all aspects. - Respect for time/home…read more- Communication - Workmanship - Easy to do business with Came for a leaking sediment filter and ended up fixing all the little things around the house while here: + 2 faucets, 2 sink drains. I would recommend if you want things done correctly and completely.

To our dismay, our 22+ year old AC unit stopped working at the start of a weeklong heatwave. We…read morewere able to secure a next morning appt with Advanced Plumbing, Heating and Air, and Victor came out, assessed the furnace and outside unit, and let us know that it was pretty much kaput (which we expected). Victor provided detailed and thorough information, and showed me all the areas that were broken/corroded and were contributing to the overall dysfunctions. We had had our dryer repaired a few weeks ago by different vendor, and Victor's assessment aligned with that vendor's assessment -- that we were possibly dealing with a full HVAC issue. Victor was able to apply a bandaid fix to hold us over in the heat and scheduled an appointment with Mark, who came to our home later that evening to do a further assessment and to provide us replacement and financing options. We were able to secure an installation appt of the new HVAC system two days later, in which, Bobby and his team came in and took care of. The installation took just under six hours and from what I could tell, went smoothly, though I did feel bad that they were installing the system on a very hot day. But they didn't complain and remained professional and courteous. Overall, we felt well-informed and well taken care of by this company! All the employees we interacted with were professional, personable, laid back, and provided us great, fast, and generous service and care. We ran into some hiccups with financing but Mark helped us iron that out quickly and smoothly. The investment of the new HVAC system was resonable and fit our home goals. I appreciated that we didn't feel upsold to or pressured, and that they took the time to understand our pain points so that we could make the best decision. We're happy with our new HVAC system and are looking forward to seeing the physical and financial benefits of having an up-to-date and more efficient system. Would highly recommend.

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

Called yesterday at 3, needed some work done on our AC/Heater. Scheduled us at 12, called and was…read moreable to make it early... very friendly and professional! Has it fixed and running in no time! Strongly recommend! The cost was minimal for time and services!

Angela did an amazing job on fixing my unit. We didn't have cold air pushing out since Saturday but…read moreshe was so knowledgeable and quick to diagnose and fix the issue. Hope to get her back again if we ever need anything fixed. Thanks

Angela came out to service AC unit and she was AMAZING. Not only did she have GREAT customer…read moreservice, she was personable, professional, and very knowledgeable. She explained things to where we understood it and when we had we had questions she answered them perfectly. I recommend this company!

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.

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.

Kudos to Jonathan Meza, Maintenance/Service Tech, for the excellent customer service during my…read morevisit. I reached out to A1 because I am a repeat client who previously arranged installation of a heat pump water heater and a heat pump HVAC system in my home. This visit involved checking a UV lamp that my Ecobee app indicated was overdue for replacement. I discovered, however, that my system lacked a UV lamp. Even so, Jonathan shared more details about my setup and showed no annoyance over a call that differed from the initial report. He described the UV lamp options available for my unit and noted that he would gladly return to install one if I chose to add it to my heat pump system. For all your heat pump system needs, I strongly recommend the team at A1 Guaranteed Heating & Air.

Great speedy response Fareeed from HVAC Masters is the best. Friendly, reliable, and efficient.read more

We had a new unit installed at our old house years ago by Fred. They did a phenomenal job then…read more However this review is from today. I texted Fred yesterday, on a Saturday, because our unit in our new house (Not the one he installed) was having some issues. He came out on a Sunday and fixed it in 30 minutes, and DIDN"T charge us. I am not saying that will always happen, but Fred is stand up guy who stands by his work. Solid guy, he deserves all your HVAC business.

Thank you for assisting my family! Water heater works great, and we got a great quality heater…read moreinstalled for a reasonable price!

I just had New Age Heating & Cooling replace my home old hvac system, Jeff is a technically…read moreproficient guy, he offer an honest estimate and attract me to hire his company. Jeff and his staff were amazing, very professional and smoothly detail work, they carefully took out old equipments and replace them with new, works great ! Yesterday (after a few days of replacement), the state request inspector came home and approve they job, says "perfect", thanks Jeff and your guys. Highly recommend New Age Heathing & Cooling.

Needed them again to address low refrigerant in the out door condenser unit. Andrew came out on a…read moreSaturday to diagnose the issue and resolved it the next weekend. Very professional with good communications and nice to have a local service provider for our HVAC system.

Andrew and Jesus were great! Worked hard, showed up on time and answered all my questions…read morethroughout the process. I recommend their business and would work with them again.

Isaiah was a great help. He did a wonderful job and took care of all my needs. He cleaned…read moreeverything after he was done. He and cool supervisor where great his name was John tan M. I'd call on them in future.

Got a HVAC unit tune-up done through Home Depot and Kevin Ly was amazing and really helpful and…read moreeducated us and checked every bit of the heater and cooling system. I would highly recommend Jazz and Kevin. In the tune-up service, I would have hoped that they cleaned the exterior of the cooling unit blower.

I have had Gabe as a technician from this company on more than one occasion and he is absolutely…read morefabulous. Today he also came with someone named Wyatt, who is fabulous as well. At any rate I've received consistent and professional services from this company. BTW: I also purchased my whole house generator from this company and I've been very happy ever since. I highly recommend them. I guess I should mention why they've been over "so much" and that is because I have them do regular maintenance and service. They know what they're doing and they keep my equipment running beautifully.

Fixed my problem the same day I was very pleased. Gabe Hartman was great!! Right now air handles…read moreall my HVAC problems, and i'm very happy with the company.