1. Gamma Air Conditioning And Heating

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Downey, CA

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Gamma Air Conditioning And Heating

4.5 (74 reviews)
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3 months ago

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2 years ago

They were fast and very reasonable on price. Very happy with the service. I definitely recommend.

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3 years ago

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3 years ago

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Roberto G.

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2 years ago

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5 years ago

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Roberto G.

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5 years ago

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5 years ago

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Roberto G.

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7 years ago

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Roberto G.

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8 years ago

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Roberto G.

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9 years ago

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Roberto G.

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5 years ago

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10 years ago

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8 years ago

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9 years ago

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8 years ago

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7 years ago

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7 years ago

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Roberto G.

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8 years ago

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6 years ago

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Roberto G.

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7 years ago

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Roberto G.

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9 years ago

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8 years ago

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10 years ago

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7 years ago

Be advised. Gama won't service your ac unit through the LADWP program if your house is older than the year 2000

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8 years ago

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9 years ago

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12 years ago

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10 years ago

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11 years ago

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11 years ago

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9 years ago

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11 years ago

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10 years ago

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11 years ago

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10 years ago

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9 years ago

Very reliable, efficient and knowledgeable. Highly recommend!

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7 years ago

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10 years ago

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10 years ago

Great AC company. I use them for all my stores and my home. Never had a problem and the prices are very fair.

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Review Highlights - Gamma Air Conditioning And Heating

“Robert and his team have been great and have gone above and beyond the call of duty for us.”

Mentioned in 21 reviews

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Southwest HVAC - Working the Pasadena trade show this weekend

Southwest HVAC

(655 reviews)

Our A/C stopped working during this horrible heat wave, and after calling 11 different HVAC…read morecompanies, this was the only company that was able to get me scheduled the soonest. They originally booked me for Saturday but told me they would call if an earlier appointment became available. To my surprise, they contacted me the very next day because of a cancellation. Our technician, Fabian, was outstanding. He was extremely knowledgeable, professional, and thorough. He took the time to explain what was causing the issue and also educated us on the importance of routine A/C maintenance to help prevent future problems. I really appreciated that he answered all of our questions without making us feel rushed. The entire experience, from scheduling to the repair, was excellent. It's hard to find a company that's responsive, honest, and reliable, but this one exceeded our expectations. We will definitely continue using them for all of our future heating and air conditioning needs. Highly recommend!

Extremely disappointed with Southwest HVAC…read more I called Southwest HVAC in April to have my AC serviced before summer because I have a newborn at home and wanted to make sure our system was reliable before the hot weather hit. I specifically took the initiative to have the unit maintained ahead of time because keeping my family comfortable and safe was a priority. During that visit, Southwest HVAC charged me $1,000 for a capacitor and a hard-start kit. I thought the price was extremely high, but I agreed to pay it because I trusted that I was paying for professional service and, more importantly, peace of mind that my AC would be ready for the summer. Fast-forward ONLY FIVE MONTHS and my AC won't even turn on. Naturally, I called Southwest HVAC expecting them to stand behind the work they had performed just five months earlier. Instead, I was told I would have to pay another $100 diagnostic fee just for them to come out and look at the system. That's what I find completely unacceptable. You charged me $1,000 to service and repair my AC, and less than five months later the system isn't even turning on--and your response is essentially, "Pay us another $100 and we'll take a look." If you are going to charge customers premium prices for HVAC work, I expect a reasonable level of accountability when the equipment fails shortly after you serviced it. I shouldn't have to pay another fee simply to find out whether the work I already paid you $1,000 for was done properly or whether the components you installed have failed. The timing is especially frustrating because I specifically had this work done BEFORE summer precisely so I wouldn't end up in this situation. I have a newborn in the house, and now I'm dealing with a non-functioning AC in the middle of summer after paying this company $1,000 for service only five months ago. $1,000 in April. AC completely dead in September. Another $100 just to get someone to diagnose it. That is not what I consider good customer service, and it certainly isn't what I expected when I paid Southwest HVAC to service my system. I would strongly recommend getting a second opinion and comparing prices before giving this company your business. Based on my experience, I am extremely dissatisfied with both the service and the way they handled the situation afterward.

Shalom Heating & Air - Brand New job completion

Shalom Heating & Air

(227 reviews)

Outstanding. Top-tier contractor. I hired Shalom Hearing &…read moreAir to install a brand new heating and air-conditioning unit for entire home of above 1500 ft.² back in 2019. We've loved having central air every single second today nearly 7 years later I needed to have the coolant line and some gas lines moved about 4 feet over pr because we're doing a remodel. The technician Malachi came out and after doing some EXCELLENT work, he told me that he was the one that originally ran everything seven years ago and then he's been working there for 20 years. I don't know how you can do any better than that. EXCELLENT craftsmanship competitive prices what more can ask for??!! Thanks Jose!!!

Orlando from Shalom HVAC was excellent from start to finish. After we moved into our new home, he…read morecame out and did a thorough assessment of our HVAC system, which had several issues: asbestos insulation, leaky and crushed ducts, an undersized 2.5-ton condenser, and an aging furnace. He clearly explained what was going on and laid out multiple options, including just replacing the ductwork or doing a full system install. What stood out was how honest and non-pushy he was. He took the time to educate me and let me make the decision without any pressure. I initially leaned toward just replacing the ducts, but ultimately chose a full system replacement for long-term reliability and peace of mind. Orlando and his crew worked hard and were very professional throughout the install. They walked me through the new system, explained each component, answered all my questions, and made sure everything was running properly end to end. They also corrected issues with the previous condensate line, handled permits, and were flexible with financing options. Overall, a great experience. I would highly recommend Orlando and Shalom HVAC.

JNA Heating & Cooling - FURNACE CHANGE OUT ADD AC

JNA Heating & Cooling

(56 reviews)

This job involved a Della mini-split dual-zone system. I requested several quotes via Yelp, and JNA…read moreHeating and Cooling caught my attention due to their 5-star rating. Hector was the first to send me a flat-rate quote; he was straightforward and told me explicitly that his service included a vacuum and a pressure test. In contrast, the other companies kept asking me questions--and, without even being on-site yet--were already telling me that my system required additional services. I reached back out to Hector, and we closed the deal. On the day of the job, he arrived right on time with his team. He quickly entered my property, verified that all connections were secure, went up into the attic to ensure everything was in order, and even took the time to insulate some exposed pipes--all at no extra cost. In less than 40 minutes, my system was running perfectly, and I was left with a smile. I highly recommend this company; I feel they are honest, and their service is excellent.

Long over due review but found Hector here read his reviews and decided to call and get a quote. He…read morequickly replied with date to check my old AC and he gave me an excellent affordable price. I scheduled removal of super old AC unit in our condo complex and installed it the following weekend. And it's been over 6 months since he installed it and it was a life saver during the hot summer months. I definitely recommend him - super affordable and very kind and excellent work. Thank you Hector and my bad on long over due review.

Air Time HVAC - Two stage high efficiency condensers

Air Time HVAC

(157 reviews)

My wife and I had an amazing experience with Air Time HVAC. If we could give them 10 stars, we…read morewould! We couldn't be happier with Kyle and his team. They were punctual, professional, knowledgeable, and incredibly thorough from start to finish. Everything was explained clearly, the work was done exceptionally well, and they truly went above and beyond. We had a very bad experience with a contractor a couple of years ago, which left us pretty hesitant when hiring contractors again. Kyle and his team completely restored our faith. We also had a few unexpected hiccups unrelated to their work, and they were incredibly accommodating. They worked around those issues and our busy schedule and still delivered exactly as promised. It's rare to find a professional like Kyle who is this knowledgeable, respectful, and genuinely committed to doing things right. He and his team are exceptional, and I would have absolutely no hesitation recommending them to anyone. If you're looking for HVAC or AC work, look no further. You won't regret calling Air Time HVAC!

I had to buy a new HVAC. The expense is A LOT. I talked with two other contractors who have done…read morework for me in the past, and I connected with Kyle at Air Time for a quote. I went down the rabbit whole with the size and type of system to install. Kyle had the best solution along with the best quote. They cut a second intake vent into my ceiling, something the other guys didn't think about when they were trying to sell me on their more expensive systems. You can't buy a system that's too big for your house. They brought the best solution forward. The energy bill went down substantially. And Kyle and Juan have been super-responsive to a couple issues that came up. I highly recommend them.

Gamma Air Conditioning And Heating - hvac - Updated October 2026

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