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    Comfort Dynamics

    3.4 (5 reviews)
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    Services - Comfort Dynamics

    HVAC installation or replacement

    HVAC system repair

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    Spot Free HVAC Air Services - Carrier Performance Series 37MURA Heat Pump

    Spot Free HVAC Air Services

    (419 reviews)

    Interviewed 5 companies for our project, super glad we went with Spot Free. We have a single story,…read moreabout 2600sqft home, with floor vents for forced heating. The gas furnace was about 25 years old and rated for a 1000 sqft home and the ductwork under the house was ripped and torn. Our house wasn't heating, our gas bill was $400 a month alone. Instead of trying to fix the current system, we wanted to upgrade to AC/heat and modernize with ceiling vents. We landed on a hybrid system: 4 ton variable heat pump outside, a backup gas furnace in the attic, whole house filter, 2 zones for the house because of our layout with two gen 4 nest thermostats, r8 ductwork, 15 ceiling vents, 2 air intakes, and all the permits. Their quote included a 3 year warranty on labor, whereas the other 4 companies were only 1 year. Nice bonus perk. The project took 5 full days to complete, and they are coming back Monday for a partial day for final touch ups. Anson came by same day and walked through the property with me, getting the full picture of what we would need. He literally drew everything out, saying it's very important that I understand what is going on because it is permanent. Anson cleared up a ton of questions I had. We talked over vent location, system size, zoning, equipment, everything. He took his time and was very patient. The quote he gave was very competitive to the other 4 I received. I decided on Spot Free because of Anson's care in explanations, his patience and detail, their quality of yelp reviews, the labor warranty and finally their price. I kept the contract though because of Jamie lol she is such a sweetheart. One of the other companies, bigger named and 2k+ reviews offered to price match, but I loved Jamie so much, as well as Anson was so quick to answer my questions over text, and the labor warranty was better. Decided to stay with them even with the price match, although that was very generous of the other company to do. The install itself went super smoothly. Brandon was the lead communicator with us on the project. He, and the whole team, did an amazing job! I felt like he kept us in the loop about everything important, in a non-invasive way, we got the vents mostly where we wanted them (beams/structure dependent), and we could still live in the house mostly uninterrupted with what I felt was still a ton of privacy given the scope and nature of the work. Honestly didn't even notice they were here for the most part, my husband and dad napped through most of the noise lol! The amount of care the team had for our belongings was also very impressive, and noted. They covered everything with plastic sheets, including stuff in our garage like our stroller. That attention to detail was super kind! They also fully cleaned up after themselves every day! Vacuumed, swept, taped up the work in progress vents, removed sheeting, etc. They were also all super careful to keep doors closed, we have 2 cats and I never worried they would be let out. It was a pleasure having the team here! The vents look super clean! Very well done. The thermostats work great, Brandon helped get them set up on our phones in the google home app and patiently, after what I know to be a long day, taught us the various settings so we could get started and ensured all parts of the system were working, much appreciated! We have heat! This is excellent! And the system is so so so quiet! It's just night one after install, but the whole house is an even temperature. Looking forward to playing with the app and sensors to fine tune our comfort here, but it's so easy and it just works so far! I'm super excited for summer, to test the AC out. I'm also looking forward to our next PGE bill, to see if maybe we are saving money lol! Spot Free HVAC is 10/10, wonderful company and people!

    Amazing, knowledgeable and friendly service. We are completely pleased with the work they did for…read moreus.

    Atlas Heating - Chris safely disconnects the electrical on old unit before starting work

    Atlas Heating

    (365 reviews)

    West Oakland

    Aaron Bright of Atlas Heating was friendly, considerate, and professional. He called when we had…read morebeen told he would call, to let us know when he would be at our house, and arrived on time. We were told the costs clearly, in advance, and the costs were very reasonable. We have an aging gas furnace (that we plan to replace with electric, but want to get a little more time out of), and it decided to work correctly while Aaron was looking at it, which made it a bit tricky for him to diagnose the issue. He told us the two things that were mostly likely causing the problem. We decided to ask him to replace the part that was mostly likely to be the failing part; but it was completely our decision, with no pressure from Aaron. He had the part in his truck, and replaced it quickly, along with the filter (which we had also asked him to replace). This was our first time calling Atlas Heating. Thanks to Aaron's excellent work, we will definitely be calling again, for future maintenance if we keep the furnace for that long, or for his help when we switch to a heat pump.

    Top Level: Initial screw-up, great recovery…read more Atlas heating installed our furnace nearly 20 years ago and it has worked well until recently. We started having problems with it, so we had a technician come out to perform preventative maintenance. However, less than a week later, it died completely and I could not revive it. I called Atlas, thinking that I would be a priority for service, assuming they would stand behind their work. Instead I was told that I could not get scheduled for service until 5 days later, and the money I had spent on the maintenance was essentially forfeit, as I would receive no credit towards the repairs. Instead, I went with a different company that diagnosed and repaired the problem two days later. After the rather disappointing interaction with Atlas, the owner called and was mortified at how I was treated. She was extremely apologetic and offered to not only refund the cost of the preventative maintenance, but tried to give me even more money for the poor handling of my case. While I did accept the refund, I did not think it fair to take more money. We parted on good terms and when it comes time to replace my furnace (in the near future), Atlas will definitely be part of the process. I would leave five stars, but have to deduct one for the initial poor handling of my case.

    Artisan Air Heating and Cooling - We're honored!!!!!

    Artisan Air Heating and Cooling

    (168 reviews)

    Artisan heating and cooling are very responsive. Cody the owner gives attention to every detail…read more I'm selling a home and they installed new ducting. Cody is so considerate punctual and respectful of your home. His price is transparent and fair . No surprises. You can tell he cares. I highly recommend Artisan honest quality and easy to work with. No doubt definitely use them again .

    Artisan Air was recommended to us by family friend and now I need to give a big thanks to our…read morefriend as well. We had such a great experience. It is a bummer when your 20 year old HVAC goes out in the middle of winter, but having someone come out and take care of you during a time like that is such a relief. Our Carbon Monoxide detectors starting going off, which really indicated a serious problem. Ed came out and explained the issues with our furnace in detail and gave us options of repair vs replacement and the various replacement options. We elected to go with a hybrid Gas/Electric/Heat Pump system. The quote was fair, I mean this stuff is expensive, but we knew the ball park costs going in and the quote was reasonable. Ed helped us figure out how to make sure we had the right hook-ups, venting location and place in the house for a new air intake port that could work in our 80 year-old house with the least intrusive modifications. Luis and Devon came out to do the work. It was a 2 day process and they were friendly, knowledgeable and pleasant to be around. If someone is going to be in your house for 2 days it is always great to have them be nice people, which they were. Cody, the owner, came by each day to check in and answer our questions and make sure we understood how the system worked. When the work was finished, everything was cleaned up and tidy. We could not have had a better experience and been more well taken care of in our time of crisis. We are very satisfied and the work was done 100% to our hopes and expectations

    Velasco's Heating and Air Conditioning - Services and installation.

    Velasco's Heating and Air Conditioning

    (73 reviews)

    Fruitvale, East Oakland

    I originally was going to replace my outdoor ac unit…read more After meeting with them and reviewing my options, I opted to replace my existing AC and gas furnace with a new full electric heat pump system as gas furnaces are getting phased out in 2030 in California. The estimate appointment, equipment procurement , and install was a breeze with a quick turnaround. Angel (the owner) was very helpful, answered every single question I had, and work through the estimate with me to make sure it worked with my budget. Once the equipment was at their shop, it only took 1 day for them to get started and completed the job in only two days, on time and on budget! I truly recommend their services

    We recently had Angel and his team at Velasco's Heating & Air Conditioning install a Bosch 20 SEER…read moreheat pump system with duct upgrades, and the results far exceeded expectations. The system passed all HERS inspections, but what really stood out was the duct leakage test: only ~4% leakage, which means about 96% of the air is being delivered into the home. For context, most homes lose 20-30% of air through leaks, and even many "good" installations only get down to 7-10%. Angel's results are better than code requirements and show true attention to detail. Angel was professional throughout, and his crew -- Julio and Felipe -- worked hard, were polite, and left the work area clean each day. We can already feel the difference in comfort, and knowing the installation was done right gives us peace of mind. If you're looking for an HVAC team that delivers top efficiency, full code compliance, and workmanship above the industry standard, I highly recommend Angel and his team.

    Galaxy Heating & Air Conditioning

    Galaxy Heating & Air Conditioning

    (984 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.

    Comfort Dynamics - hvac - Updated May 2026

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