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    D.N. Heating and Air Conditioning

    4.3 (42 reviews)
    Closed 9:00 am - 5:00 pm

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    Services - D.N. Heating and Air Conditioning

    HVAC installation or replacement

    HVAC system repair

    HVAC system maintenance

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    3 years ago

    Miguel is very friendly and easy to communicate with him. And you can trust. He did a great job every time. and he is always on time.

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    3 years ago

    Came on time and installed our smart thermostat in one hour. Very friendly and nice attitude.

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    4 years ago

    Great Service,Quality, Affordable, always on Time and Amazing Personality very professional 100% Recommended.

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    Page 1 of 2

    Ask the Community - D.N. Heating and Air Conditioning

    Review Highlights - D.N. Heating and Air Conditioning

    Today in 2022, I was lucky to receive SAME DAY SERVICE - because Mike was in my area already and he "made it happen".

    Mentioned in 11 reviews

    Read more highlights

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    Air Synergy

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    My experience with Air Synergy was great from start to end! The appointment setter was very helpful…read moreand able to schedule me an appointment right away. Shaun was my service technician. He was punctual and very thorough in explaining the diagnostic of my air conditioner's issue and the needed repairs. He quickly fixed the leak that was found, and made sure that all was running right with my AC system. He answered all of my questions in a kind and patient manner and provided helpful recommendations for the maintenance of my system. I highly recommend Air Synergy.

    Air Synergy cheated us out of $14,000 under the direction of Mr Mendez who maliciously, willfully…read moreand with deliberately disregarded and performed the work outside the parameters laid out by the Contract regarding the Infrastructure Reduction Act, California Department of Energy via Tech Clean program guidelines and approved statues and dates for rebates, thus negating our ability to collect the $14,000 in rebates he promised us to et us to contract with Air Synergy, In fact Air Synergy did not make any contact with Clean Tech until Jan 2025 after our continual insistence. Approved contractors on the "Tech Clean list" are responsible for knowing and following all the rules, regulations and timelines of the program to insure customers are guaranteed the program rebates. Air Synergy failed to perform any of those tasks causing us as the customer to be excluded from the program and rebates in the amount of $14,000. Air Synergy was directly responsible as an "Approved Contractor" for failing to perform the work prior to the start of the programs approved timeline.

    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

    (575 reviews)

    I had to have the air ducts under my house replaced and since I had used Perfect Star for my new…read morefurnace and AC unit I decided to trust them with this big job. Emmanuel V., Gabe H. And Diego R. were awesome! Professional and clean. They kept me in the loop and made sure that I was satisfied with their work. I would hire them again in a heartbeat! Thanks again guys!!

    This company is a scam. Do yourself a favor and go with another contractor you can trust who will…read morenot try to lie to you to get your business. I found this company based on all the wonderful Yelp reviews to tune up my old gas furnace- something I do every year before the winter season to ensure optimal maintenance. They came out and immediately refused to do the service citing possible asbestos tape. I asked how this was possible when the last 15 years I've gotten service and have even asked the contractors to do a visual inspection of my system. They weren't sure but said that another employee in the area can come look and give me an estimate for a new system. I thought this was shady and it turns out, I was 100% right. They came later that day and quoted me $26K for a new system not including subcontracting to get the asbestos removed (another $1500). I was told and shown pictures that there was evidence of the same tape inside the duct work. I was told I would get these pictures sent to me with along with the estimate but never received any of them. I got someone to come out and test a sample of said material for $100 which did come out positive for asbestos. However the only asbestos that presented any harm was the tape on the outside of the system. There was no asbestos inside but it was recommended that I do more expensive air testing since Perfect Star said I would not be able to use my heater without the asbestos getting released into the air. Not only was this stressful to hear right before the cold weather, but I was very concerned that over the last decade I had inadvertently put my whole families health in danger using this furnace. Meanwhile, Raymond Kinder texted me a few days later to find out if I was going to move forward with the new unit. I told him asbestos removal was my priority. His response via text was "if they remove asbestos, you will not be able to run that furnace as the gases will not be vented out properly." This was not true. After several weeks of not using my heater and exploring other options to deal with a pretend problem they created for me, I went with Air Quality Testing who charged $540 for an air test. $640 later along with having no use of my heater, I learned that there is no asbestos running through my air or ducts. Perfect Star literally lied to me in order to attempt to get me to drop nearly $30,000 on a new system. Stay away from this company! They do not deserve your business for lying to their customers.

    Galaxy Heating & Air Conditioning - Air Handler Mitsubishi SVZ-KP36NA Brentwood

    Galaxy Heating & Air Conditioning

    (986 reviews)

    My wife and I recently hired Galaxy to replace our aging gas furnace and AC with a new 4-ton…read moreMitsubishi heat pump system, and the entire experience was fantastic from start to finish. During the estimate phase, Constantine was a breath of fresh air. Instead of pushing generic upsells, he actually "downsold" us by engineering exactly what we needed to work seamlessly with our home's downflow ducting. He was honest, straightforward, and clearly explained the system without any high-pressure sales tactics. For the installation, Mike and Diego were our crew. They arrived a little past the initial 9am window on the first day, but they worked incredibly hard and got the entire complex job done right on schedule. At the start of Day 1, I handed them a simple "homeowner's QA" list of things I wanted to check with them at the end. They were super nice, listened, and gladly accommodated every single request. The workmanship is top-notch. They perfectly sealed the exterior wall where the lineset exits, helped me get the Kumo Cloud Wi-Fi connected to my phone, and hauled away all the old debris, leaving the site spotless. As a testament to their technical skill, when I asked about the refrigerant line vacuum test, they had pulled it down to 350 microns--which is a great number and proves they don't cut corners! Pics attached of the final setup. If you want an HVAC company that is honest in the office and expert in the field, we highly recommend the Galaxy team!

    fair honest and respectful. They're not here to upsell you. They're here to improve your quality of…read morelife through heating ventilation and air-conditioning. They came out to fix my air-conditioning, which went out in the recent heat wave. It was a simple repair so they said no charge. This type of customer service is unheard of today's economy. I could think of at least one other service that would have tried to sell me a brand new system.

    MechPros Heating and Air Conditioning

    MechPros Heating and Air Conditioning

    (101 reviews)

    This summer we moved into our home (no AC) in the middle of a heat wave. Kate at MechPros went…read moreabove and beyond to prioritize our installation so that we could live comfortably in our home as soon as possible. We received several quotes for the service and MechPros gave us a competitive estimate for a Mitsubishi heat pump and air condenser. Everyone at the company is extremely knowledgable. The other companies we were speaking to had actually recommended units that were too big for our home, but Paul gave us a full load calculation report that thoroughly reviewed our system's needs for which a smaller unit was suitable and more efficient. Overall, I would absolutely recommend MechPros. Kate, Paul, and Ross are a great team to work with, extremely responsive to questions and concerns and actually care that you are satisfied with the end result. If you are looking for HVAC service look no further!

    Wow. What a terrific experience. Our heating wasn't working (all fan and no heat) so we called…read moreMechPros. Even though they were very busy this week they were able to squeeze me in. Paul came out and tracked down the rather obscure problem (caused innocently enough by another HVAC company who came out earlier in the year to repair the air conditioning). He repaired the problem and presented me with a very fair invoice for his work. I would recommend these folks without any hesitation. They are knowledgeable, efficient, and reasonably priced. And as a big plus, very friendly.

    D.N. Heating and Air Conditioning - hvac - Updated May 2026

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