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    Grey Diamond Heating & Cooling

    5.0 (2 reviews)
    Open Open 24 hours

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    Services - Grey Diamond Heating & Cooling

    HVAC installation or replacement

    HVAC system repair

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    Recommended Reviews - Grey Diamond Heating & Cooling

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    14 days ago

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    3 years ago

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    Astera Heating, Cooling and Appliance Repair - Astera Service

    Astera Heating, Cooling and Appliance Repair

    (336 reviews)

    I got a prompt response to my request with a quote for diagnostic, which would be waived if I…read moreproceeded with the repair. They do provide the service requested and gave me a link to make an appointment. We'll see how things go in a couple of days. The repair man, Alex, was prompt and identified the problem - two problems, actually. He was able to get the dryer running again, better than it had been. Reasonable price

    I read the Yelp reviews for Astera before I reached out to them, and the 5-star reviews are spot…read moreon! I sent a message via Yelp on a Sunday night and they immediately scheduled our oven troubleshooting for Monday afternoon. Their front office staff is incredibly responsive! George (technician) arrived timely and was very thorough. He explained things to me every step of the way. He is approaching this very methodically - ok, so it's not the igniter, let's look at the next link in the chain... I saw George called out by name in other Yelp reviews, and I understand why he comes so highly recommended! He called the manufacturer to discuss his findings, but the manufacturer tech team wasn't available. He let me know he would be calling them again in the morning and that he would reach out to me with an update. I've had plenty of negative or so-so experiences with other service technicians from other companies. This experience with George / Astera is so positive that I'm posting my review even before the service is completed. Astera will be getting first crack at all of my appliance and HVAC service calls going forward.

    Four Seasons Heating and Air Conditioning - Chicagoland's most trusted and award-winning HVAC Contractor.  Choose Four Seasons for all your heating and cooling needs!

    Four Seasons Heating and Air Conditioning

    (1.7k reviews)

    Always have prompt, fair and helpful service when I call Four Seasons. In this instance our rental…read moreunit had a problem with the AC on a hot and steamy weekend. The service technician came to the unit, serviced our furnace and AC in prompt and efficient manner and offered (but didn't push) on recommending changes to our HVAC to make it work better. This would be a 5 star review but: (1) PLEASE get rid of the AI agent for calls. It is unhelpful and not personalized to manage HVAC calls. (2) If you're not going to make the scheduled window, that is okay BUT please phone ahead that you're going to be late. Prices were fair for a weekend service but certainly not cheap for an AC repair (~$400).

    UPDATE: A new tech did return at 3:30pm (window was 8am to noon), but not before I spent 118…read moreminutes total on the phone on hold or speaking to various people. 118 minutes of my own time to understand what is going on isn't acceptable, period, even if the tech who eventually comes is capable and does a solid job. The polite, knowledgeable tech did make the air coming out of the registers cold again (thank you!!!), but my original problem remains: there is not enough power in my current system to cool my house efficiently and sufficiently. Already getting worried about the 5+ days we have coming up of 90+ degrees F weather. My AC will run constantly that entire period because it will never be able to keep up with the sun bake and my high ceilings, WHICH I KNEW FROM THE JUMP, PEOPLE! Hence my original inquiry with Four Seasons. [rage emoji] So while the new tech came and undid what his colleague managed to make worse the prior day, I am currently exactly where I started but down $2k. **I will reserve full judgement for a few more weeks, after the leak package determines if I have a leak,** but regardless of the findings, I don't think I will trust this company in the future. Their marketing team did an excellent job convincing me this was a family-owned and operated local business, but I think it's much too big to adequately service the customers it has. I have a full-time job and can't be on the phone with robots for almost two hours in a day.

    Grey Diamond Heating & Cooling - hvac - Updated July 2026

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