Serving San Jose and beyond HVAC Installation San Jose

Johann and team did a great job May 21, 2026

Johann and team did a great job installing HVAC and duct system, while addressing our numerous little questions. :-) I will return again to update this, after trying the new system for some time.

Ram Dwivedi

Top notch experience from beginning to end May 1, 2026

A1 just completed the first of two installs needed for our home remodel. Top notch experience from beginning to end. Utmost professional team. Fast, efficient, and so tidy! It's challenging today to find a company you can trust. So thankful for the great experience and cannot wait for part 2 of this project.

tamme whitaker

A1 Heating and Cooling did a great job May 1, 2026

A1 Heating and Cooling did a great job throughout the entire process, from reviewing and explaining all options to have a fair and competitive price to timely installation. The job site was clean, and the installing team was friendly and performed the install with no issues, as well as cleaned up and left the site cleaner than they found it. I would highly recommend A1 for all your heating and cooling needs.

Brad Mandell

Pleased With the Whole Process Mar 19, 2026

Just had a new HVAC installed yesterday. Pleased with the whole process from shopping for the right system to having a very efficient heat pump installed. Rav was very knowledgeable and understood my priorities right from the get-go. Over the course of a week, he gave prompt and detailed responses, and his professionalism gave A-1 the edge over another competitive quote. The team that came to install the system, led by Ramon, was polite and unbelievably quick. Thank you, Luis, Rodriguez, and Johann (and the guy who reminded me to buy new registers)! I would be remiss if I didn’t mention Desirée at the office, who was incredibly helpful! Can’t wait to enjoy air-conditioning this summer!!

Clare Lee

They did a great job Aug 29, 2025

Installed new furnace and AC, and they did a great job. Very happy with the whole process, from getting the estimate to having their crew come out and do the work.

Ed Gory

Had such a great, easy experience Aug 14, 2025

Had such a great, easy experience with this company. From Hyman in sales, to Evuardo and Mel for install, and Francisco as a tech (and all the other team members who accompany them—I forget everyone’s name!) it was a great experience for a brand new install. Thanks A-1! Highly recommend.

McKenzie White

Service was an outstanding value. Mar 28, 2024

I simply must express my utmost satisfaction with the A1 Heating and Cooling team, spearheaded by Ramon, Louis, Rodrigo, and Elmer, who handled our HVAC installation impeccably! Their performance was truly exceptional; not only did they install our system flawlessly, but they also took the initiative to address minor household issues, ensuring everything was in perfect order. Their demeanor was professional, and they diligently tidied up after themselves each day. Every team member remained focused and committed to completing all assigned tasks. I strongly doubt that smaller companies would have demonstrated the same level of dedication. While some companies may have chosen to cut corners, A1 Heating and Cooling prioritized quality without inflating the price—making their service an outstanding value. I also want to give a shoutout to Bill for his help in suggesting the perfect system for our needs. Working with him was a breeze—he's knowledgeable and great to work with, making the whole process smooth sailing. Bill's expertise really made a difference and added to the overall positive experience with A1 Heating and Cooling. They even provided a comprehensive tour of the attic and installation areas, demonstrating meticulous attention to detail with the application of aluminum foil tape and other materials. Unlike the occasional sloppy work seen with contractors, their craftsmanship was flawless. Additionally, Rodrigo graciously rectified an issue in one of the installation areas at no extra cost. Such exemplary service cements my decision to entrust future projects to A1 Heating and Cooling. Their work truly deserves commendation!

kiran

Great value and professional service Feb 2, 2024

A1 Heating and Cooling installed a replacement two-stage, four-ton HVAC system at my home late last year, 2023. Miguel and his team did a great job. His whole team showed up and were very professional. They were quiet and they cleaned up after themselves each day. Each of Miguel's teams worked diligently the whole time they were there on all the tasks assigned to them, including upgrading my electrical disconnect near the outside condenser coils. I doubt the smaller companies would have done all this. I feel that some companies would have cut corners, but A1 didn't do this. And the price was actually lower than some of those other companies. So it was a great value. After Miguel was done, I looked upstairs in the attic at the air handler/evaporator coils area, and the final result looked like something out of a brochure. All the aluminum foil tape, etc., was applied with care, and it showed. It was not at all sloppy work like you get sometimes with contractors. Miguel even fixed something in one of my zones that was not right. He increased the size of the branch ducts to my smallest zone to a ten-inch duct to increase airflow to that small zone. And it was done at no extra charge. A couple of months after all this fine work was done, I noticed a few action items that I thought might improve the job. A1 sent Francisco over to work on it, and his professionalism and attention to detail were excellent also. It turns out that the problem was my fault. I just needed to be more aggressive with swapping out the filter. He showed me this fact without trying to make me feel dumb about it. In the end, Francisco even made a modified filter for me because the original installers (not A1) did not make the intake register properly. The 'box' for that register was not made square, which means that *no* off-the-shelf filters fit. I need to fix that register, but Francisco created a filter that will work until I get that fixed. All this makes me want to give that job to A1 Heating and Cooling also. Good work.

Ken Tompkins

Great company. Sep 14, 2023

A-1 installed new furnace and AC for my house. They gave the lowest price and were able to do it sooner than promised. The crew was excellent: competent, polite, a pleasure to work with. Great company. A-1 also cleaned my ducts. Duct cleaning was performed very professionally, with meticulous attention to detail, by a very polite and competent technician for a competitive price.

Eugene Dyatlovitsky

System Seems to Work Great Now May 21, 2026

Sal tackled our A/C problem, checked out the system, cleaned an area that may have been causing the problem, explained the whole process, and made some suggestions for follow-up. System seems to work great now!

David Mann

Danny V did a fantastic job May 18, 2026

Danny V did a fantastic job on my A/C conditioners. He is very professional and provided so much information for me. He deserves his 5 stars!

Kathy Leslie

Friendly, dependable folks May 14, 2026

Friendly, dependable folks. A1 has given me a fair price and good service.

Jesse Parsons

Sal Provided Detailed Information May 13, 2026

Sal provided detailed information about repairs. Great customer service.

Monterey Gateway

Super thorough and honest May 11, 2026

Danny V. is great! Super thorough, honest and provides great customer service!

Andrea Leslie

You Exceeded My Expectations May 10, 2026

Ubaldo and his crew were the most professional and enjoyable group of people I have done business with in. I can't remember ever having a more pleasant group around me. Everything about this job was perfect from the first call to your office, the salesman who was on time, he asked for my expectations, and then he explained what I could get away with, and then he laid out what I should get, not the most expensive either. I accepted his recommendation, prayed for the best. I had just had a terrible experience with Atlas Trillo/Lowes the month before, so I was a bit apprehensive, to say the least. Ubaldo and his crew showed up on time. I woke up a bit before the start time and saw the crew quietly waiting out front to get started. From the second I met Ubaldo and his crew I knew I chose the right people. I can't say great things about this group of hard-working professionals, Ubaldo, Arturo, Carlos, Marcos, Melvin. What a great bunch of guys. First thing Ubaldo and Arturo did was walk me through the process with a timeline, and that was exactly how it went, no hiccups but always ready to assist any way possible. Thank you Air Sharks, you exceeded my expectations with service that was far above the norm. Bryan Croy and family

Bryan Croy

Very professional and knowledgeable Apr 25, 2026

Porter was a very professional and knowledgeable air conditioner technician. Extremely helpful.

Randell cauwet

Very Professional Apr 23, 2026

Sal went out of his way to show us how to care for our equipment, very professional.

Maricela rivera

Their work speaks for itself Apr 23, 2026

A-1 Heating and Cooling took on our central AC replacement and handled it with a level of confidence and care that immediately put us at ease; everything felt organized, intentional, and done for the long run, not just a quick install. What really sets them apart is that the quality didn’t stop once the system was in—the follow-up service has been just as strong, with thoughtful checkups and zero corner-cutting. They’re the kind of company that doesn’t need to oversell anything because their work speaks for itself, and that quiet reliability is what makes them stand out. Highly recommend.

Olga Knauer

Very knowledgeable and informative Apr 23, 2026

Porter was a nice guy and very knowledgeable, informative, and clear describing my AC issues and options.

Jeff W (DrummerJSW)

Great Experience with A-1 Heating and Cooling Apr 16, 2026

Great experience with A-1 Heating and Cooling. Sal, the tech, did an excellent job and finished the repair quickly. I’ll definitely be using them again for future service.

Doug Merk

A-1 Heating and Cooling Were Great! Mar 14, 2026

A-1 Heating and Cooling were great! They answered their phone right away, scheduled a very efficient service (that was not delayed), and clearly explained our issue. They were also very affordable! I’ll be calling them back for any future needs.

Christine Hanks

Johann did a great job Mar 13, 2026

Johann was the main technician for the furnace replacement and did a great job! Porter had come initially to inspect and was very informative and personable.

Edwin Brower

Highly Recommend These Guys Mar 2, 2026

A-1 Heating & Cooling was fantastic to work with. They responded quickly, handled the repair quickly, and they made sure it was running flawlessly before leaving my home. Highly recommend these guys!

Anthony Valdez

Great customer service attitude Feb 28, 2026

Danny had a great customer service attitude and met my system service requirements. He also assisted me by installing a new filter for my furnace after tuning my AC unit.

Gloria Stinson

Reliable, Honest, and Efficient Feb 13, 2026

I had a great experience with this AC and heating crew from start to finish. They were on time, professional, and extremely knowledgeable. They took the time to explain what was going on with my system and made sure I understood my options before moving forward. What really stood out was how friendly and respectful they were, and they kept everything clean while they worked. You wouldn’t even know work had been done when they left. It’s hard to find a team that’s reliable, honest, and efficient — but these guys delivered. I highly recommend them to anyone needing HVAC service.

George Magana

A Wonderful Job Fixing My Furnace Feb 2, 2026

Mel and Ever did a wonderful job fixing my furnace. They were friendly and a delight to meet. You’ll be happy to have them work for you!

Roy Cassady

Very knowledgeable and polite Jan 28, 2026

Porter was very knowledgeable and polite. Enjoyed working with him. He identified and fixed the problem.

Muder Kothari

Very good overall experience Jan 17, 2026

Very good overall experience, great team and very responsive. Thanks to Everardo Mel for addressing the furnace issue yesterday, professional and efficient.

Mathieu Sureau

Excellent and professional Jan 9, 2026

Ramon and Llus are both excellent and professional. Explains to me in detail.

Paul Lee

Miriam Took My Work Order Jan 7, 2026

Miriam took my work order very professional and quick.

Javier G Gonzalez