Bro just call Marasigan if you need ANY HVAC work. Don't go anywhere else. In season 12, episode 13…read moreof King of the Hill, Hank Hill talked about the importance of having a reliable professional on tap for projects. Well, Simon and Marasigan is my HVAC guy. Best service you'll get in Solano (and a little bit of Contra Costa) Simon owns the company, no middle man, and he has more than 17 years of experience working in HVAC. When I requested service for my AC, he would've literally been able to come check it out within half an hour! I wasn't able to do that cuz I was working, but he was able to work with my schedule. The flexibility is always great. When he came by, he was immediately able to diagnose the problem, told me exactly what I need, how much it was, and even taught me how to maintain it and diagnose issues on my own as well. No frills, no upselling, saved me money wherever he could, and most importantly, the job was future proofed as well. I got a great price for the work that needed to be done, and it was also done quickly. He even came early! What makes him stand out above the other HVAC services is that he even taught me how to increase the longevity of my unit. I knew that he really cared about the quality of his work, and making sure his clients are taken cared of. So yeah, just go to him!

Symond and his family crew did a great job replacing my Air Conditioner unit. Professional,…read morepersonable, and very reliable. Symond obviously knows HVAC - very knowledgeable. They did a great job. Highly recommended!

At 26 years our AC and heat system was tired. Through our AHS Proconnect home warranty, we were…read morereferred to Nate at Same Day Air. Nate provided guidance on selecting the right model for our needs. He also recommended an Air Scrubber to help with seasonal allergies priced way below competitive bids. We had a 5 star experience with the air duct cleaning with Same Day Air a week ago and looked forward to our new system. Brentwood can get quite hot in the summer. Come install day, Roberto arrived early to prep for installation. He had help from 3 additional team members. Roberto and Edward powered through the installation and by mid afternoon we were enjoying our new system. Edward installed our nice new Nest thermostat which enables us to use an app from our phone. Nice! Excellent job, highly recommend!

After being lied too about a new compressor and service was all the…read moreworse you can imagine. Its hot now and they do not care. Price gouging and not doing the job right. Leaving a stripped bolt off the compressor and the other 3 were loose also. DO NOT CALL NOT REPUTABLE SERVICE.

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!!!

Greg and mark were the best service for my hvac service I could've asked for . I highly recommend…read moretheir company. Very good communication, taught me new ways to maintain my ac unit. Thanks again and would hire them again.

These folks did a fantastic job installing a Bryant Heat Pump. They installed last September, 2025…read more The unit works great for heating and cooling now having used it for almost a year, we couldn't be happier. The office crew was great. The installers did a better job than expected, they were excellent to work with and dog friendly too. BTW, they removed the old furnace and also installed new ductwork, all good. Thank you very much. Pete

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.

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.

I'll keep it short. Requested service on Thursday. Fred responded within 30 minutes. We scheduled…read morean appointment for Saturday morning. Fred texted me Friday saying he couldn't make it due to an illness. He offered to come in Sunday if he was feeling better. I agreed. He showed up at the agreed upon time which was typically his day off. He was very friendly and communicative. He fixed the issue at the proposed cost and explained what he did and next steps for us in operating our heater. Great experience. I'll definitely reach out again if ever needed.

I had great experience with Jeff, Francisco and the team! My 40 year old AC broke one day in this…read morehot summer and New Age is the first active responder to my request on Yelp! Jeff came and examined the AC very carefully, suggested possible solutions and waited for my decision patiently without pushing. Jeff and team catered to my changing schedules and installed my new AC as soon as possible - saving my life in this crazy heat! Besides, they also cleaned all ducts and the furnace closet, making everything brand new! I'm really satisfied with the new AC and the fresh air! I know the price is crazy now, but Jeff is able to get a fair price for me and get everything settled perfectly! Thank you Jeff and team for being so professional and flexible! Recommend New Age to everyone!

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.

Naveed came and completed a new toilet install for us. He was super helpful in identifying some…read moreissues with the original plumbing, and gave us good suggestions and recommendations for the install. Super helpful and would highly recommend Naveed!

Had a leaking toilet and the water was getting under the flooring. Jorge came and took care of…read moreeverything! He also shared some knowledge that as a new homeowner I truly appreciate! Very pleased with the work, so happy I reached out to this company and will keep them in mind for future services that may arise! Thank you Jorge!!