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    Diamond Air Services

    5.0 (62 reviews)
    Open 7:00 am - 6:00 pm

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    Response time

    10 minutes

    Response rate

    100%

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    Services - Diamond Air Services

    Air duct cleaning

    Air duct filter replacement

    HVAC installation or replacement

    2 More Services

    HVAC system repair

    HVAC system maintenance

    Diamond Air Services Photos

    Recommended Reviews - Diamond Air Services

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    Reviews With Photos

    Hau V.

    I had an issue with my heater at my office. I checked around for local companies and Diamond Air was located at the same business park . I drove over and was able to schedule an appointment same day. They came out and diagnosed the issue, repaired, and serviced my system. I got my heater back up and running. Thank you for the quick response!

    The NEW UNIT

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    Photo of Pam C.
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    27 days ago

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    5 months ago

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    Anthony M.

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    2 months ago

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    7 months ago

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    4 months ago

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    6 months ago

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    4 months ago

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    Anthony M.

    Thank you so much for the feedback. We will definitely let Mike know.

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    3 months ago

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    Anthony M.

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    4 months ago

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    Anthony M.

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    Photo of Lam P.
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    2 months ago

    Good service and attitude.The technician explained clearly and precisely what I needed .Good job Anthony and thank you again

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    Anthony M.

    Thank you for the positive feedback. We truly appreciate it.

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    4 months ago

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    Anthony M.

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    3 months ago

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    Anthony M.

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    5 months ago

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    Anthony M.

    Thank you for giving us the opportunity to be able to work with you.

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    8 months ago

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    7 months ago

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    4 months ago

    Great service and excellent communication. Competitive pricing for HVAC systems. Highly recommend this company.

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    Anthony M.

    Thank you so much, Dirk. We truly appreciate the positive feedback.

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    8 months ago

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    1 year ago

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    11 months ago

    My Tech Jose, was very knowledgeable, friendly, helpful and also very professional and right on time.

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    1 year ago

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    1 year ago

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    1 year ago

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    Anthony M.

    Thank you Simon. It was a pleasure and thank you for the opportunity.

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    1 year ago

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    4 years ago

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    Page 1 of 2

    Ask the Community - Diamond Air Services

    Review Highlights - Diamond Air Services

    If you need any kind of HVAC work done I highly recommend reaching out to Anthony and the Diamond team.

    Mentioned in 17 reviews

    Read more highlights

    All City Plumbing, Air & Electrical

    All City Plumbing, Air & Electrical

    4.7
    (4.7k reviews)

    From the very first phone call, I had a great experience with All City Plumbing. I spoke with…read moreJazmine, who was friendly, professional, and took the time to listen as I explained that the floorboards in our main bedroom were wet and we were worried we had a slab leak. She scheduled us for the first available appointment at 8:00 a.m. the very next morning. Our technician, Alexis, arrived on time and was incredibly respectful and professional. He walked through the issue with my brother and father, performed a thorough assessment, and clearly explained exactly what was causing the problem. After a brief conversation with my brother, it was obvious that Alexis and All City Plumbing were the company we wanted to trust with the repair. Alexis was extremely knowledgeable and took the time to explain everything he was doing. He even showed us, using a camera scope, that our pipes were clear and free of tree roots. That gave us tremendous peace of mind and ended up saving us a lot of money by avoiding unnecessary work. The quality of service, honesty, and professionalism were outstanding. On top of that, the work is backed by a one-year warranty, which gives us even more confidence in the repair. We will absolutely be calling All City Plumbing again for any future plumbing needs. Highly recommend!

    Danny H. did a great job diagnosing and fixing our A/C issue. We have an older "dinosaur"…read more 18-year-old system that suddenly stopped cooling properly, and we weren't sure if it was beyond repair. He quickly figured out the problem, explained everything clearly in simple terms, and didn't push unnecessary work. He got the system running again and restored the cooling without any pressure or upselling. Really appreciated his honesty and professionalism working on an aging system. Our A/C is back to normal now and based on my research, the cost was reasonably priced. Highly recommend Danny H.

    Sean Patrick HVAC

    Sean Patrick HVAC

    4.7
    (35 reviews)

    Replaced my elderly aunt's HVAC system with a reasonable cost vs some outrageous quotes we got from…read moreothers who apparently take advantage of the elderly . Quality work and very professional and my aunt is still enjoying her system set we almost a year after.

    Since my previous review, one last item which the new thermostat has been installed. We were happy…read moreand thankful for the good will of Sean. However we still disappointed with the AC condenser unit that was replaced with the lower efficiency machine that was cheaper and low quality. Well, promise made is not promise kept. It will made my experience whole if the unit was replaced with what it promised. Updates: After I post this review the owner : Sean, was calling me and my wife multiple times, almost every hour. Asking me to take down this bad review. First he asked me politely then he starts threatening me and my wife by explaining what do we do for living and he will start calling my friends, family and workplace where we work. Not sure what he wants to do by stalking our information and being intrusive to our life. He insists to come back to my house which I refuse to give him permission. He threatens my wife by telling her that he used to be a bad guy, and I don't understand why he starts getting violent and seek revenge against my family. So I decided to file restraining order with Los Angeles County Court to protect my family against his violent nature and behavior, per our lawyers advise.

    Diamond Air Services - hvac - Updated July 2026

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