HVAC reviews in Novato, California

Excellent service! They installed our entire air conditioning system in less than two days. And when I couldn’t figure out how to connect the app to the system, Osvin came back and showed me. I highly recommend this company!

Osvin arrived five minutes early for our appointment. He immediately looked at our furnace which was off-line and said that the company that installed the unit should fix this under warranty. He explained possible problems but did not touch the unit because it is still under warranty with a different company. After about 15 minutes, he said that it would be better for the other company to fix the issue. HE DID NOT CHARGE US! He drove out and told us to use a different company! That is professional, kind and worthy of a switch to Red Mountain! Thank you, Osvin!

I had Red Mountain install a Trane furnace and they did an excellent job. The price they charge me was lower than all the other AC companies out there. I highly recommend them.

My technician was fantastic. He explained everything clearly, didn't pressure me into extra services, and left everything clean. 10/10!

We can't say enough good things about Red Mountain Heating and Air! Our 40-year-old furnace finally gave out, leaving us—and our 5-month-old baby—without heat during chilly nights when temps were still dipping into the 40s. Red Mountain truly went above and beyond—Osvin even came out on a Sunday to give us a quote, which was incredibly kind and accommodating.

Not only did their bid come in lower than other companies we contacted, but it also included better, more energy-efficient equipment. The team was responsive, professional, and kept their workspace clean throughout the install. Our new furnace and AC are already working perfectly, and the whole process was smooth and stress-free.

From start to finish, Red Mountain delivered exceptional service. We’re so grateful to Osvin and the team, and we wouldn’t hesitate to recommend them to anyone looking for high-quality, trustworthy HVAC work.

We purchased a furnace from Red Mountain in December 2024 and their delivery was immediate, efficient and very professional. Osvin Reyes kept in touch with us in case we had any questions and was available to help us in anyway necessary. We were pleased with his service. We are now purchasing a new air conditioning unit from Red Mountain to be installed by Osvin. I highly recommend their service!

It was a wonderful experience to have Osvin and his team at Red Mountain Heating and Air replace our 20 year old furnace. It was installed without issues including a follow-up adjustment for the fan speed. We passed inspection and overall highly recommend their great work and integrity.

Three days before a big holiday, with houseguests on their way, my trusty 30 year old furnace died. The nights were cold, and I was panicked. I’d gotten estimates months before, as I knew the time come. But someone highly recommended Red Mountain, so I gave them a call. They came the very next day, on time and ready to help. They pronounced my old furnace beyond repair (no surprise). We discussed the furnace options available, what would work best for the size of my home, the cost and timeline. I compared their quote to the others I’d received and Red Mountain won out on all counts. They did not try to upsell or add on options I did not need. AND they installed the heater the very next day, prior to my houseguests arriving, so I could welcome them to a well-heated home. Red Mountain’s work was fast, efficient, thoughtful and professional. I highly recommend them!

We needed to replace our decades-old furnace and install an A/C unit. From start to finish, Red Mountain Heating and Air was a pleasure to work with, provided us with a reasonable rate, and made the whole process stress-free. Clarisa was very responsive and helpful, made it easy to set up appointments for the quote and the installation, and answered all of our many questions. Osvin and his team provided efficient and high-quality work, and we are very happy with how our project turned out.
I highly recommend Osvin and his team at Red Mountain Heating and Air!

Red mountain installed my new furnace and AC and they did it professionally and cleaned up after themselves. I now have better heat coming out than I had before. I am excited for some hot weather to come to try out my new A/C! They installed a very quiet unit. All for a fair price. I am grateful to the office manager Clarissa who is kind and professional also.

Osvin and his crew from Red Mountain Heating and Air are true professionals at what they do. We had our heater replaced in our large 5 bedroom home that was 40 years old. Osvin came to give us an estimate and we were able to schedule within a week. There work was outstanding. Not only did they replace the heater and all parts but went above and beyond cleaning the area and letting us know step by step what they were doing. We will be recommending them any chance we get. Thanks!

Osvin and his team at Red Mountain did an exceptional job installing our new 4 ton Bryant system. They were quick and efficiency and very reasonable and accommodating. They also had the best price around based on 3 other HVAC quotes. Id highly recommend them.

Osvin gave us important information about our heating system and presented the options clearly and professionally. We are very happy with the excellent work and customer service at a fair price.

I definitely recommend Red Mountain Heating and Air. They removed my old heater and ducts. Then installed a heat pump, air handler with new ducts. Their price and installation was excellent. The crew was very courteous and professional.

REMOVAL AND REPLACEMENT OF DUCTWORK IN THE ATTIC:

We hired Osvin and his crew to install new R8 Flex in our attic.
Osvin and his team arrived on time as scheduled.

They were very respectful of the property and maintained a tidy workspace as they carried tools and later, duct work through the house and into the attic.

They finished the project on time and tested the HVAC system before packing up.

We are very satisfied with the increased air pressure and balance throughout the house.

We also want to thank Clarisa for her exceptional customer service handling most of the correspondence setting up this project!

We would hire Red Mountain again and highly recommend their services

Osvin and team were incredible. Quality customer service, product and installation, at unbeatable prices. Will definitely be using them for all of our future HVAC needs. True professionals.

We had our 100 year old, asbestos-wrapped duct system removed and hired Red Mountain to install new ducts after the asbestos removal contractor was done. Great price and quality work. Very friendly people. I accidentally overpaid their invoice, and had no problem getting a refund for the excess amount.

I recently hired Red Mountain Heating and Air to install a new central A/C system in my home and we couldn't be happier with the job. Osvin and his crew were professional, hardworking, and did an exceptional job. They arrived on time, worked diligently, and left the work area clean. They also took the time to explain the new system to me and answered all my questions. My wife and I highly recommend them for their outstanding service.

I recently hired Osvin for HVAC work at my house, and I couldn’t be happier with the results.
Fair Pricing & Honest Assessment: Osvin took the time to assess my home’s specific situation and needs. My heating system was aging, and the ductwork hadn’t been cleaned since the house was built in the 1970s. He provided honest recommendations about what upgrades were necessary and gave me a very reasonable quote based on my actual needs.
Efficient & Timely: His team arrived promptly at 8:00 AM on the first day and worked until 4:00 PM. They returned the next morning at the same time and continued working until after 2:00 PM. They didn’t leave until they completed thorough testing to ensure everything was working properly.
Attention to Detail: What impressed me most was how meticulous his team was. They kept the work area clean throughout the job and did an excellent cleanup before leaving. They were both efficient and careful with their work.
Overall, this is a fantastic team that I would highly recommend to anyone needing HVAC services!

Red Mountain Heating and Air went above and beyond to ensure our installation went smoothly. We had a dual zone system installed and it took only 2 days to finish the job. They not only completed the work in a timely manner but also came back to rodent proof the wiring that ran through our crawl space. Since we’ve had a rodent issue, this was a big concern that they more than alleviated. Can’t recommend their work enough - they are true professionals and their finished product speaks volumes to this!

Red Mountain Heating and Air did an excellent HVAC install for us. The team was friendly, professional, and easy to work with — they reworked our quote several times as I kept changing the scope, and it was always handled smoothly. They also finished the work quicker than expected and shared a lot of practical tips for running the system. Overall, a great experience. Would definitely recommend them.