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 !

!!PLEASE READ FIRST!!…read more I should have shopped around instead of rushing into hiring this company, that's my biggest mistake. I recently had a new washer and dryer installed, and the installer told me my water valves were leaking and needed to be replaced. This was the first company I called because of their high number of reviews, which I now regret trusting. The price I was charged to replace those valves was outrageous--nearly $1,100, and they didn't even bother to repair or replace the sheetrock afterward. For such a basic job, that alone felt excessive. It gets worse. After doing just one load of laundry, my water heater on the second floor started leaking down into the first floor. This had NEVER happened before they worked on my plumbing. I called them immediately, but they couldn't send anyone out until the next day. When a technician finally arrived, I was quoted $4,000 to replace the water heater. That didn't sit right with me, so I decided to get a second opinion. I contacted another company, and the difference was unbelievable. They charged me $2,300 for the same water heater replacement, showed up within an hour of my call, and completed the entire job in about two hours. Out of curiosity, I also asked them what they would have charged to replace the laundry room valves. Their answer? Around $350. So I was charged nearly three times the going rate for a simple repair, and then quoted almost double for the water heater replacement. That's not just overpriced, that feels completely PREDATORY. I strongly recommend getting multiple quotes before hiring anyone, especially this company. I would not use them again and would not recommend them to anyone.

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

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!

Incredibly rude customer service. They actually hung up on me, even though I was calmly explaining…read morethat the service they provided hadn't been fixed. Strongly recommend NOT working with these people.. incredibly rude, didn't fix the problem, and will likely hangup on you... There are plenty of other businesses that will not waist your money or your time.

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.

While I was deciding to add a mini split to my 1938 home, their estimators were careful, listened…read moreto my desire to maintain as much aesthetic of the coved ceilings as possible, and were the only company who came up with creative and solid options to do so. They removed the old heat "oozer" in the living room, used the existing flue and mounted a lower unit as I was hoping. Three years later, they've been out twice for what they consider warranty work (a small pump failed) and charged me zero for the house call or the parts. They also helped me find a loan and proceeded the PGE rebates for me.

Excellent service from start to finish! The technician was professional, knowledgeable, and very…read morethorough. Everything was explained clearly, and the work was completed efficiently. I highly recommend this HVAC company for their quality service and professionalism! Best value for my buck.

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

We decided it was time to replace our old heater & got a few estimates from local HVAC companies…read more New Age responded the same day, answered all of our questions, and booked an appointment with ease. Jeff showed up on time and discussed the best options to address our concerns. He provided a competitive estimate that was within our budget. ( Bonus points for wearing protective shoe coverings when entering our home.) We quickly found that Jeff was the man for the job. He is professional, knowledgeable, and provides excellent customer service. We decided to have a 2 zone heat pump system installed and are extremely pleased with everything from start to finish. Jeff and his crew are top notch. They treated our home with care and respect putting down drop cloths in every room where work was completed. if you need anything HVAC related, call New Age first you will be happy you did. Thank you Jeff, and New Age crew, we are now enjoying the perfect temperature everyday.

I rarely leave reviews, but this experience deserves one. I recently had a mini split system…read moreinstalled by New Age and I couldn't be happier. Jeff was knowledgeable and polite and took the time to answer all my questions. The team was professional, efficient, and respectful of my home. They laid down tarps, wore shoe coverings and left the area clean and tidy. I appreciated being included in the aesthetic decisions, like the placement of ductwork. Great job!!!

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.

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.

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.

Jenn is the best... very accommodating... follows through and returns calls with information...she…read moreis the best! Thank you!