1. AVANT HVAC

0

Brentwood, CA

AVANT HVAC

5.0 (16 reviews)
Open • 6:30 am - 10:00 pm

    Book an appointment

    Get pricing & availability

    Response time

    10 minutes

    Response rate

    100%

    Covered by Yelp Guaranteed

    Your project with this business is eligible for coverage up to $2,500 when you hire through 'Get pricing & availability.' Terms apply. Learn more

    Services - AVANT HVAC

    AVANT HVAC Photos

    Portfolio From The Business

    Sponsored

    Recommended Reviews - AVANT HVAC

    Your trust is our priority, so businesses can't pay to alter or remove their reviews. Learn more about reviews.
    Yelp app icon
    Browse more easily on the app
    Review Feed Illustration

    Reviews With Photos

    Replaced AC unit

    Oleg and Avant HVAC is a top-notch company for all your HVAC needs. Honest pricing and accurate diagnosis, paired with clear communication and incredibly fast service. We had an old unit, and Oleg gave me a clear breakdown of all the options, letting me decide with absolutely zero pressure. They then handled the installation of our brand-new AC and furnace seamlessly. A highly transparent and honest company. So glad I found Oleg for all my HVAC issues.

    See all

    Photo of Kam E.
    23
    3
    0

    3 months ago

    Business owner information

    Photo of Oleg K.

    Oleg K.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    15 days ago

    Business owner information

    Photo of Oleg K.

    Oleg K.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    3 months ago

    Oleg is professional and knowledgeable. Has been very honest and fair in HVAC issues.

    Business owner information

    Photo of Oleg K.

    Oleg K.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0
    Photo of J F.
    29
    4
    1

    4 months ago

    Business owner information

    Photo of Oleg K.

    Oleg K.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    4 months ago

    Business owner information

    Photo of Oleg K.

    Oleg K.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    4 months ago

    Business owner information

    Photo of Oleg K.

    Oleg K.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0
    Helpful 0
    Thanks 0
    Love this 0
    Oh no 1

    5 years ago

    Business owner information

    Photo of Oleg K.

    Oleg K.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    4 years ago

    Business owner information

    Photo of Oleg K.

    Oleg K.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    4 years ago

    Business owner information

    Photo of Oleg K.

    Oleg K.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    4 years ago

    Business owner information

    Photo of Oleg K.

    Oleg K.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    5 years ago

    Business owner information

    Photo of Oleg K.

    Oleg K.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0
    Photo of Matt S.
    54
    30
    6

    3 years ago

    Business owner information

    Photo of Oleg K.

    Oleg K.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    4 years ago

    Business owner information

    Photo of Oleg K.

    Oleg K.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    3 years ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    4 years ago

    Business owner information

    Photo of Oleg K.

    Oleg K.

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    Ask the Community - AVANT HVAC

    Review Highlights - AVANT HVAC

    “Oleg and his crew then showed up at our property after 5 hours letter we have new furnace running !”

    Mentioned in 10 reviews

    Read more highlights

    Elite Comfort Systems - We treat every customer as if they were our own mother.  #HVAC #Repair #Installation #Air #Conditioning #HVACMaintenance #AirDuctRepair

    Elite Comfort Systems

    (224 reviews)

    We are once again extremely pleased by Elite Comfort Systems. They are a top quality service Air…read moreand Heating company. This recent visit was a warranty service call and the response, service, workmanship and expertise always exceptional !!! Thank you to our technicians "Ossie" and "Anthony" for their professionalism, explanations, quality work and testing to ensure a good outcome. Thank you Vic, Ossie, Anthony and the Elite team. Stacy & Robert Miller

    I was a new homeowner in 2022 when Vic (the owner) and his company, Elite Comfort Systems, saved my…read morefamily (including the feline members) from sweltering in 100+F degree weather by diagnosing and repairing my air conditioner. Since then, they've serviced the almost 22 year old system at my home, nursing it along. With each semi-annual "check-up" service, they advised me on what I needed to do, and what could wait. When funds were tight, they suggested stopgaps to help. Because of this history, when Alex showed me that my heater was leeching carbon monoxide into my home, I knew I could trust him. While I waited for my appointment, I was provided with space heaters gratis. This IS an independently owned business, and they treat customers like family. Ozzy (Osvaldo) and Anthony installed a new heat pump and air conditioner for me last week. They were at my home three days. Not only were they professional, friendly, and polite, they were also respectful of my home--taking time EVERY day to cover my carpeted areas, covering their boots as they came into and exited the house, and cleaning up any installation debris before they left each day. Ozzy and Anthony discovered that a part of the original system was not going to work as efficiently with the new system (the dampers) given the difference in the size. Ozzy explained the difference to me, noted the cost, and the pros and cons. He didn't pressure me to upgrade the items but he made sure I had enough information to make a decision. At the end of the installation, Ozzy took the time to show me how to use the new digital thermostat controls and gave me tips on how to use the system economically. He provided me information on how to follow up if there were ever any problems. Just like other times, Vic called a few days later to see how things were going (I missed the call, but still...so so kind and thoughtful). It's a lot of money to replace your entire HVAC system, no matter which company you use, but hiring one where you know you can trust the company. Simply put, you'll never have worries about trusting Elite Comfort Systems.

    Cali Heating and Air Conditioning

    Cali Heating and Air Conditioning

    (8 reviews)

    I thought I left a review already, but upon returning here, it seems to have either disappeared or…read moremy memory is bad. The reason I'm here is part of my review... Last Fall (or was it the year before?) our furnace stopped working, and I called Cali HVAC for service. They sent Oleg fairly quickly, and he did a good job repairing it; in fact, he proved himself to be very conscientious when, after replacing a circuit board that fixed the problem, he didn't like the way one part on the board was oriented, so he came back and replaced that board with a different one that fit better. He could have left it as is, since it was working, and I probably never would have known. In addition to fixing the problem pretty quickly, Oleg was also very informative and polite, answering all questions with patience and no attitudes. So, now I have moved into a new house, and even though the HVAC works, I want to have them check it out, and hopefully educate me about filters to use, what maintenance it might need, and how to make it quieter.

    Sent Cali Heating and AC a message 4th of July morning, it's was supposed to be 110 and our AC was…read moreblowing warm air. Daniel responded within minutes and said we could help, he sent out one of his Technicians, Oleg. Oleg was timely and polite when he arrived, he quickly diagnosed the issue and was able to make the repair immediately. We are now blowing cold air! We appreciate this company and Oleg for helping us out on a holiday. Thank you!

    Perfect Star Heating, Cooling, & Electrical - We are proud to be a locally owned and operated family business that services all makes and models in Alameda & Contra Costa County!

    Perfect Star Heating, Cooling, & Electrical

    (598 reviews)

    We had our AC stop cooling in the middle of a hot day, and with two young kids and a dog at home,…read morewe were pretty stressed. Keon Garcia came out and did an outstanding job. What I appreciated most was that he didn't just start replacing parts. He thoroughly diagnosed the system, explained what he was testing, and walked me through the results. He showed me that the capacitor was testing low, the contactor was worn and pitted, and even performed a megger test on the compressor to verify it was still healthy. After the repairs, he confirmed everything was working properly by showing me the compressor amperage had dropped back to normal and that the system had an 18-degree temperature split. Keon was patient with all of my questions and never made me feel rushed. He explained the pros and cons of the recommended repairs, including the hard-start kit, so I could make an informed decision instead of feeling pressured. I really appreciated his transparency and professionalism. By the time he was done, our AC was cooling properly again, and he even worked with us on the final price. If you're looking for an HVAC technician who is knowledgeable, honest, thorough, and takes the time to educate his customers, I highly recommend Keon Garcia. Thanks again for getting our family cool again!

    Alternated telling me he wasn't a sales man and didn't want to pressure me, and pressuring me to…read moresign that day. Forced some sales video on me and acted shocked and hurt that I didn't find it valuable. Called when I didn't respond to the bid and when I told him I went elsewhere because he was pressuring, said "I thought we had a connection"

    AVANT HVAC - hvac - Updated October 2026

    Loading...
    Loading...
    Loading...