Long over due review Grateful to have worked with Sasoun on the install for a heat pump and ducting for a new construction ADU in summer 2025. We received multiple estimates and Sasoun stood out from the pack. He is on time, honest, provided fair pricing on quality equipment (carrier) and was just wonderful from estimate to install completion. We have since used CalStar to do repairs on our main home AC. He was quick to get parts and repair before an upcoming heatwave. We always appreciate how prompt and honest he his with any questions or issues we have with our systems. We also used him to install mini split in our garage. Every job we have done with Sasoun we have been very happy with. He is truly a professional who is skilled in his trade, honest, fair and just an awesome human being all around. read more

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They replaced the condenser coil for our HVAC. We received multiple quotes and went with Calstar as they offered the best price with no upsell. We were very happy the quality of the work and communication was great. It is a family run operation, the owner and his dad did all the work. We again have a nice cool house! read more

Sasoun was great to work with! He's very knowledgeable, responsive, and patient in answering my questions. He did an excellent job installing my mini splits, and I'd definitely recommend him! read more

Sasoun was great! AC broke last night in midst of 100 degree heat wave. Sasoun responded promptly and gave an early repair window first thing in the morning. Came out, did a thorough job diagnosing the problem (busted starter at the condenser), and repaired with a replacement part; all within 30 minutes. Professional, thorough, and effective. Couldn't ask for anything more. read more

Exactly what I needed to find, small business, family owned and honest pricing. Quick turnaround, fast proposal and invoicing. Professional work and honest expertise. Work was done on a mini spilt in the garage. Will use them in the future for any servicing. Stay away from the big business who give out coupons for discounted ac servicing read more

They came quickly. It had snowed (yes snowed!) and my furnace stopped working. Of course it was Sunday but they arrived at 830am. Had to order a part and came back Monday to finish the job. read more

Sauson came out to fix my AC on such short notice. Great quality and value. Prices are reasonable and fair prices. Sauson is trustworthy and I will use him again. read more

Don't go anywhere else for your heating/air conditioning needs. After receiving a wide range of estimates and contradictory information from various HVAC companies, we were extremely fortunate to find Sasoun on Yelp. The information he gave us was clear and accurate for our home, and his estimate was reasonable and realistic. His work was superlative and professional, and he went above and beyond our expectations. We are delighted with our heating and cooling system and only wish we had found Sasoun and Calstar years ago. There is a reason why all of the reviews are 5-star - truly deserved! read more

I've had reason to call Calstar at least 4 times in the past few years for help with 2 aging AC units. Sasoun has been responsive and able to repair quickly every time I need it. His work is reliable and reasonably priced and his instincts are good too; once giving me advice just from a phone call that fixed a problem. This is my go-to resource for HVAC issues and that's what we all need is a reliable tradesperson. read more

Calstar is excellent. I've used them twice and both times the service was outstanding. Most recently, our AC went out on one of the hottest days of the summer and Sasoun fit us in the same day. He quickly identified the issue and had the parts on hand to repair it right away. Honest, fast, and fairly priced. Highly recommend! read more

I messaged a few vendors to get availability for a check up on my hvac. It was a bit difficult to filter through companies w inflated reviews (as you know a lot of vendors offer discounts if you give them positive reviews-- I'm not a fan of that practice). I settled on Calstar as I wanted to support a local business.. Sasoun was prompt in communicating, showed up on time, and worked efficiently. He let us know we had an electric filter (which we never use) that was impeding the flow of the unit so he capped that off and the hvac now performs much better. Very honest in his assessment and highly recommend him and his team for any of your hvac needs! read more

Recently, our AC system broke down and stopped blowing cool air. We sought quotes from various vendors, but while most quoted high prices and were unresponsive to our questions, Calstar stood out by providing quick responses and very reasonable pricing. It turned out that the issue was with the old motor, and ordering an original replacement would have taken months. The Calstar team, specifically Sasoun and Mike, followed up with us daily and offered solutions that made the best technical and commercial sense. Eventually, we were able to have an aftermarket motor installed at a very reasonable price. Sasoun and Mike even came to our house after hours to install it and addressed all my follow-up questions professionally. read more

Quick, honest service! Diagnosed the problem and did sell unnecessary service. Thanks!

If you're searching around like I was, you can stop searching -- Messaged Calstar via Yelp and got a REAL response right away -- they answered my questions, set a time for the next business day, and gave me a very reasonable quote with an explanation of what it covered. Sasoun and Mike showed up on time and answered all of my questions, serviced my A/C, and taught me some simple things to do to maintain my system. Then, without any conversation about it, he invoiced me for LESS than the quoted estimate -- which was unexpected and surprisingly honest and decent. read more

Sasoun and his crew at Calstar Heating & Air did an amazing job replacing my 35 year old furnace and air conditioning unit. Initially I was nervous about a large expenditure, but right away I could tell that his knowledge & expertise came from many years of experience. He was honest about my installation options and performed timely work over 3 days. I highly recommend his company for anyone needing HVAC service. read more

The only HVAC contractor I trust. Sasoun and his team have now done several projects for me, including full re ducting and 2 mini split installs. He also just correctly diagnosed and quickly fixed a wiring issue with my hvac that the warranty company incorrectly diagnosed. His prices are fair and reasonable and he does exceptional work and is also a pleasure to work with. When it was very hot he went out of his way to get our reducting project done in one day instead of 2-3 that it normally would take by hiring a larger crew, without charging me more for that. He is quite literally the only hvac contractor I will ever call to work on my properties. The best!! read more

We contacted Calstar because our HVAC was malfunctioning, and we had such a great experience. Sasoun was very professional, prompt, knowledgeable, and friendly. He came to assess our HVAC within hours of our call, diagnosed it right away, and even had the part to fix it on the spot. We will be using Calstar for any future HVAC needs! read more

I highly recommend CALSTAR HVAC services to everyone. Sasoon is a professional with very broad knowledge of HVAC systems. Made a phone call for his services and Sasoun was there the next day. Systematic troubleshooting got the problem resolved. Thank you Sasoun. read more

Sasoun helped fix our A/C that broke down during the heat wave. He was able to do a thorough inspection and fix the problem with the condenser and reset the fuse box. Thank you for your prompt service! read more

thank you for squeezing me in only to get here, look around, and confirm that nothing seems wrong. Needless to say, I'll be calling you when the next thing *IS* wrong.... read more

I've never encountered such an honest vendor before, and this is not an exaggeration. To give you a bit of background, I was looking for an HVAC technician to recharge my unit with 407c Freon Coolant. I contacted about half a dozen vendors for quotes, and they all quoted prices ranging from $250 to $400 per pound. To replace 12 pounds of coolant, they quoted between $3,000 and $4,800, which I thought was outrageous. But then I contacted Calstar Heating & Air Conditioning, and Sasoun replied that the coolant costs just $55 per pound. I could hardly believe the price. He came to my house within three hours and completed the job, including some insulation patchwork, and only charged me for the coolant, which was $660. I am blown away by his honesty; it's incredibly rare to find such people in a world where everyone seems to be trying to take advantage of you. Mr. Sasoun, you are an honest person and a gentleman. I will definitely reach out to you for any future HVAC work. Thank you so much! If I could, I would give you a 10-star rating. read more

Sasoun and team recently fixed my heater. He came out quickly after my first call to help diagnose the problem and did a quick interim fix. Later he worked with me on the timing to do a longterm fix and fit within my schedule. He also did a couple extra things while he was there within the original quote. I highly recommend Calstar. read more

Very caring, punctual and far and beyond service. Highly recommend for all AC heating needs. New AC unit pricing was very reasonable and installation was a breeze. read more

AC unit was blowing air that wasn't cold at all and they made it the same afternoon when the soonest any other company could arrive was the following morning. Most companies were telling me they couldn't make it until a few days later, even though I explained it was an emergency because I had a newborn in the house. Calstar came through and fixed the system within two hours and at a reasonable price. They even had the two parts that had gone bad on hand. read more

I called for 3 quotes to repair a broken heater. 2 of the 3 said that the entire furnace unit would need to be replaced, around $6,000. Luckily the 3rd estimate was Calstar and Sasoun fixed the issue for only $785 by replacing the bad circuit board. He was very responsive, informative, on time, and genuine. It sucks not knowing if you're being taken advantage by people who know you're ignorant of the issue and technology, but Sasoun is as trustworthy as they come. read more

Sasoun is great... My air conditioning unit has given me major problems over the years. I have had several companies come out and service the unit but they all ended with more questions than answers. After calling Sasoun, he was able to troubleshoot and fix the problems quickly. The service and work is incredibly effective and I will not use anyone else. He is knowledgeable and professional and always available when I call him. I will not call anyone else. read more

I called Calstar when I noticed my air conditioner HVAC system, was not cooling as it should. Sasoun took the call and told me he would be coming in the afternoon and a couple hours later, he let me know that he could come earlier than he anticipated. Sasoun came in on time and quickly diagnosed the problem. I was so glad he was able to fix and diagnose the problem quickly. Calstar Heating and Air Conditioning is everything you want in a company: Quick response, on time, and fast diagnosis/ repair. They will be my go- to company for any future repairs. Thank you, Sasoun and Calstar for the great experience! read more

Our heater wasn't working, nest and the furnace were giving up and malfunctioning, our house dipped to 60 degrees and we have three little ones at home. I was desperate on a Saturday! Sasoun (on his day off) took the time to come and help us out! He's a dad of two and understands what it means to go above and beyond for the little human beings that are counting on you to provide a warm, cozy home. Customer service: just wow! I was juggling a crying baby at home. The heat was on within minutes! Of course he worked his magic in our crawl space and got everything restored. I love how thorough he was in his diagnostics and gave us wonderful advice in allowing our vents to circulate air properly to the rest of the house and to help prevent damage to our equipment. I'm so thankful to Sasoun for helping us restore warmth back to our home. Not only is he polite, friendly, and kind, but he is very knowledgeable and detailed in his help and explanations! read more

Sauson provided very professional knowledgeable service in a timely manner, rectifying an issue I was having with our downstairs thermostat. He also spent extra time discussing the state of our hvac system and offered options on how to reasonably improve its performance. Highly recommend and will be using him again in the future. read more

Sasoun is great and I highly recommend Calstar. Sasoun has helped us a couple times over the years, once during a heatwave he got our AC back up and running. More recently he's helped us balance the airflow to different rooms by adjusting the dampers. The dampers took him a couple trips (getting temp in different rooms right is a bit touch and go) but he treated it as a single service call in terms of price. I thought I needed him to add a damper for a certain room but when he went into the attic he found that it already had one and told me he would adjust the one that's already there instead of installing one. I'll spare my dear readers additional detail and just close by saying that each time we've worked with Sasoun we've found him to be honest, methodical, competent, punctual, and pleasant. read more

The team was on time!!! Not pushes and didn't charge show up fee!! Highly recommend Calstar Heating & Air Conditioning. Thanks! The Blohm Family read more

Calstar came to the rescue! We had a leak that we weren't sure where it was coming from and after my 3rd plumber figured it out that it was the Hvac, Calstar repaired it on site. They helped us greatly by avoiding breaking open a wall and running a pipe over the roof to drain into the garden. This saved us thousands of dollars and lots of time. These guys are the best! I'm so thankful! read more

Calstar Heating & Air Conditioning - The new pipe to drain the condensation. - Heating & Air Conditioning/HVAC Near Me - La Crescenta, California

I am so glad I found Calstar heating AC. Sasoun came out and inspected the system in a home we are purchasing, as well as the ducts. Changed the filter and educated us in all the options for our system. I learned a lot about energy efficiency and better optimization. What a wonderful experience, will be having Calstar do maintenance until we can change our system to a more updated system. Highly recommend this company. read more

Sasoun and his partner installed a brand new air conditioning and heating system at my business including all the duct work and finishing touches. I had 4 other quotes and they came in the lowest, but price aside they were also the most professional, honest, and respectful couple of gents I've done business with. They showed up at 6 am to finish the job in one day. They made sure everything was done properly and to code, they also came back 6 months later to replace the filter and to make sure everything was running smoothly.. Wow who does that ??? Sasoun does thats who! I was thoroughly impressed and highly recommend Calstar Heating & Air Conditioning to any home owner or business owner. read more

Calstar Heating & Air Conditioning - Beautiful New Carrier Unit. - Heating & Air Conditioning/HVAC Near Me - La Crescenta, California

Excellent responsiveness and service. Highly recommended for any size HVAC issue or project

My AC unit wasn't turning on for over 24 hours in 90+ degree weather. My house felt like a furnace. I left a message for Sauson and he came same day. He worked on my AC unit in the middle of the day under the blistering sun. He got my AC up and running again very quickly. I recommend Sauson and his team to anyone with air conditioning issues. read more

Calstar Heating & Air Conditioning - AC unit fixed within minutes! - Heating & Air Conditioning/HVAC Near Me - La Crescenta, California

Great prompt job! Sasoun showed up exactly on time. Performed quick professional repair.

My old York HVAC went out during the coldest days in January 2024 and I was really worried I would need a brand new system. I searched for a repairman and I found Sasoun with Calstar. He replied to me right away, asked what was going on, gave me an estimate, and an arrival window of time. He also said that the service visit was $100 and that would go towards fixing the problem. He was professional at troubleshooting and found that a fuse and a Capacitor needed to be replaced. I am grateful for the heat and I would recommend this company for fixing your heating or air conditioning! Thank you Sasoun! read more

As a realtor, I have met and worked with numerous A/C specialists, and I can confidently give 10 Stars to Sasoun for his professionalism, knowledge, guidance, honesty, and advice for future plans. Sasoun's knowledge of different products, and their pros and cons is amazing!!! Call him with 100% peace of mind. You'll save a lot of money! read more

Did a good job helping me repair my mini splitter. He was knowledgeable, polite, and did a good job