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Sinclair Air Systems
Family-Owned and Operated for 30+ years!
Sinclair Air Systems is a family-owned and operated HVAC contractor with over 30 years of experience, proudly serving Los Angeles County. Specializing in AC install, repair, and maintenance, we strive to deliver top-notch services that bring year-round comfort to your home or business. Our team of certified professionals is not only committed to providing reliable and energy-efficient installation solutions but also offers comprehensive AC maintenance and service plans to keep your system running at its best. With a legacy built on quality and integrity, Sinclair Air Systems is your go-to HVAC contractor for all your heating, cooling, and air quality needs. Experience the peace of mind that comes from partnering with a trusted family business dedicated to exceeding customer expectations
Served areas
  • Covina, West Covina, Baldwin Park, Glendora, Azusa, San Dimas, La Puente, Walnut, Duarte, Monrovia, El Monte, Diamond Bar, Irwindale, Charter Oak, Valinda, South San Jose Hills, Avocado Heights, Rowland Heights, La Verne, Pomona, Arcadia, Temple City, Rosemead, San Gabriel, Hacienda Heights, Sierra Madre, Bradbury, Claremont, Vincent, Mayflower Village, North El Monte, South El Monte, Montebello, East San Gabriel
Business details
  • Year established: 1980
  • Employees: 10
  • Licensed
  • Insured
Highlights and features
  • Family Owned
  • Fast Service
  • Quality Guaranteed
  • 10 Year Warranty on New Equipment
Associations and certifications
  • EPA Universal
Payment methods
  • Cash, Checks, Debit cards, Credit cards, Mobile payments, Bank transfers, Cryptocurrencies, Financing available
Services
Welcome to Sinclair Air Systems, the leading provider of residential AC installation in Los Angeles County. As a family-owned business with over 30 years of HVAC expertise, we specialize in installing energy-efficient central air conditioning systems perfect for Southern California homes. Our customizable solutions and top-of-the-line products ensure consistent cooling, lower energy costs, and quiet operation. Choose us for a comfortable home, no matter the season
Sinclair Air Systems is your go-to local AC company for reliable residential HVAC repair in Los Angeles County. With a seasoned team of professionals, we quickly diagnose and fix any system issues to ensure year-round comfort. Our wide range of services includes everything from troubleshooting errors to installing new parts. Count on us for fast, efficient HVAC repair services that stand the test of time.
With years of expertise, we deliver efficient and professional solutions tailored for your business's heating and cooling needs. Understanding the importance of a reliable HVAC system in a commercial setting, our certified technicians employ the latest technologies and durable equipment to ensure smooth operations. When you choose Sinclair Air, you're not just opting for an HVAC service—you're investing in a partnership committed to your comfort and success.
Commercial HVAC Service Sinclair Air is your reliable commercial AC service contractor in Los Angeles County, offering specialized HVAC maintenance packages for businesses. Recognizing the complexities of commercial HVAC systems, our professional team conducts routine inspections, preventive maintenance, system diagnostics, and emergency repairs to ensure peak efficiency. We're more than just a service provider; we're your partner in creating a comfortable and efficient workspace. Contact us today to keep your commercial HVAC system performing optimally and prolong its lifespan.
Reviews (21)
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Mr. Lynch
Jul 31, 2023
Spoke with Susie, awesome lady there! Caitlin you as well. Tech showed up at 0800ish, even though my AC unit is a bit old, he was able to complete the routine maintenance and refilled the refrigerant. MANY MANY thanks to Sinclair Air for coming out. I know you guys are super busy, again, thank you!
David Ventura
Jul 21, 2023
After years with an HVAC system we enjoyed, we decided, after 22 years it was time to replace the furnace and condenser. We called Sinclair Air System's and spoke to the office manager, Susan. She was very professional and knowledgeable. She scheduled an appointment for us with the owner, Rick. He explained to us the unit that will fit exactly what we needed. Giving our approval, work started the next day, remove the old A/C and replaced with a new state of art unit.

We are completely satisfied with the work done and pleased with our new Air Conditioner Unit. Thank you Rick and your crew at Sinclair Air Systems for your professional approach and assistance. Just know, when assistance is needed in the future you will be our first call.
Ruby Z.
Jun 05, 2023
I recently had an HVAC system installed by Sinclair Air Systems and I couldn't be happier with their service. The team was professional, punctual, and highly skilled. They explained the process clearly, worked efficiently, and left my property spotless. The installed system has been running perfectly. I'd highly recommend Sinclair Air Systems for their top-notch service and quality workmanship!
Amber S.
Jan 31, 2023
If I could give this company 10 stars, I definitely would. Thank you so much Rick for your professionalism, punctuality, and honesty. When I first called Sinclair Air Systems, Rick answered all my questions with no hesitation. He seemed very honest and someone who wouldn't take advantage. Front office, Susie made an appointment with us, she was a doll.

Very nice and also very professional. Rick came out next day, fixed our heater situation and made recommendations without pressing a sale. You will now be our #1 for our heating/Ac issues. Thank YOU!
Denise M.
Jan 25, 2023
I needed to relocated my AC unit. Rick, Susie, and the team were great. They squeezed me in and got it done same week, price was a steal. I will definitely be calling them back when it's time to upgrade my old unit.
Alan Mannino
Oct 28, 2022
I had been putting off a new system for years and finally pulled the trigger. Through a friends recommendation I called Rick. Rick came to my house and explained all that I should be doing in an honest manner. He gave me a price for the complete system and never once had to change his price. I got top of the line service and products and my system runs so well my kids have to tell me to turn it off because I like it cold. Great relationship with the owner Rick and his crew that was clean and always on time. I give them a 10 Thanks Rick
Lawrence Larry C.
Oct 20, 2022
TBH, I thought they quoted me high but the other companies quoted me the same. They are very punctua and professional. And the office lady is very friendly. I would recommend this company is you want things done the right way.
Audrey Macias
Sep 16, 2022
Excellent service, poor guy almost got stuck under the house! But he totally fixed my problem for a reasonable amount and fairly quickly. Thank you.
Terry C.
Jun 28, 2022
My AC unit outside was not working properly yesterday the inside air was not cold! This morning when I called Sinclair the lady was really helpful and had Rick get back to me quickly, he squeezed me in this morning and got here within 10 minutes because I happened to be very close to their office, they looked at my AC unit outside and his guy quickly removed the panel and they replaced the capacitor! Price was great and AC working like brand new again! Blowing cold air once again! Lucky to have this done quickly because of how hot these days are! GREAT JOB!
Anthony J.
Apr 16, 2022
Great service! Rick was very thorough and diagnosed the issue quickly and precisely. Pricing was more than reasonable and the job was done faster than I expected. Thank you Sinclair Air Systems! Rick is the man!
Matt Collier
Jan 03, 2022
Outstanding Customer Service! Dealt with consummate professionals every step of the process. They were able to squeeze me in on short notice and kept me apprised of the technicians arrival time. The technicians were punctual, professional, polite, and fast! Excellent pricing as well. Thanks to Emily, Greg, Carlos and Susie for taking care of my ac issue. Would not hesitate to recommend them to anyone.
K. J.
Oct 11, 2021
Used them on 4 homes/rentals I've owned. Referred them to 2 others who used them and were happy. Good work. solid work. Come back if needed. Explains the real underlying problem. Offers affordable or higher end fixes. Also gives reasonable options depending your short or long term needs. Office staff always gets back to you right away. All the work on all the homes still running well. 6-7 yrs later with no issues. Very good at electric work too as they replaced my main circuit board panel as well. Will continue to use them for sure.
Alicia R.
Sep 28, 2021
Excellent customer service! Sinclair Air had my a/c up and running in minutes. Highly recommend their services.
Juan Johnny Martinez
Mar 20, 2020
These people are just awesome! Did everything they could to get my install done A.S.A.P even over the triple digit holiday weekend. And he beat everyone else's prices. They genuinely care. We appreciate you! The Martinez Family
Jeff Ferrazzano
Jan 27, 2019
Even though it was a hot day with many calls before mine, Sinclair Air Systems made it out to my mother in-laws house same day and fixed problem. As my mother in-law is elderly having the air working was very important. They did a great job and a fair price.
Angie Benavides
Dec 30, 2018
Excellence customer service Rep by the name of Susie. Very honest and helpful. I would only call this company in the future for any Air Condition issues or. concerns. Thank you very much City of Covina Angie B
Yolanda V.
Aug 27, 2018
I can't say enough good things about this company. Their customer service is stellar. Susie in the office is a delight to talk to and she actually calls you back when promised. My second story is unbearable in the summer and it was recommended by 2 other companies that I should have another unit installed for the upstairs - to the tune of $10,000 and $12,000. Rick came out and looked at the registers and said they were not the proper type and wasn't distributing the air properly.

He came back the day he promised with said registers and installed them. He was neat, clean and respectful of my home. This Company is honest, professional and really knows the air conditioning business. Thank you Rick - I can freeze meat upstairs now and you didn't have to install another unit to the tune of $12,000.
Ramiro Rubalcaba
Feb 01, 2018
Sinclair AC is awesome and they are now my go to AC company. I contacted them when my AC when out during an awful heatwave and they were able to get a technician out to my home same day. The office staff was super friendly, professional and efficient. When the technician arrived he was also friendly, professional and knew what he was doing. He quickly identified the problem, had the part in his vehicle and repaired my AC in less than an hour. The price was great. Thank you Sinclair AC! I give you my highest recommendation! Ramiro Rubalcaba
Steven Soto
Jun 08, 2017
Well let me start by thanking each and everyone of you(Rick, Susie, Miranda, Steve, Billy, Anibal, Dennis, Todd, & Darin) for making my experience with Sinclair Air systems clearly preeminent. They are 90% complete and I love what they have done. The pride & attention to detail Rick and all his crew put into their work is very hard to find when working with multiple craft.

It is clear to me at Sinclair Air Systems Rick sets the bar for excellence, and his team easily surpasses that bar. I will continue using Sinclair and will recomend to eveyone I know.! Update.3/26/17 Sinclair Air systems is now completed with the installation in my home. My wife and I could not be happier. This is a company that goes the extra mile to get things done correct.

Sorry for the late finishing review, they actually finished the next day after I wrote my previous review. I just took a while to get back to update. BOTTOM LINE! If you use Sinclair Air systems you a guaranteed good prices, excellent work, & great customer service. DO NOT GO ANYWHERE ELSE! YOU WILL BE SORRY!
Mike S.
Jun 24, 2016
Back when we were remodeling and decided to add Central Air, only Sinclair agreed to do the install and reasonably priced. The other two companies we called advised us that the ceiling crawl space was just not high enough even if the section only had beams at that time which should make the install possible if not easy. Rick showed up and did not see any problems and got the units installed and coordinated with the electrician and contractors.

Almost ten years later, Rick shows up again and saves the day. Last Sunday, during the expected heat wave, our unit would just turn on for a few seconds then shut down. We realize it was a busy time for service calls with temperatures at over 105 so we just waited until they have someone who can come over since we survived without A/C before although that was 10 years ago. So, Rick shows up today and diagnoses that the unit just needs freon, calls his office as he goes to another call. 20 minutes later, Eddie shows up with the freon, charges the unit and we are good to go again hopefully for another 10 years. But if this unit goes out, we know who we can count on to give us a great price and properly replace the unit. i hope Sam and Miranda are still there to take our calls
Ron Riggio
Feb 15, 2015
The other reviewers don't know what they are talking about. This guy knows everything about air conditioning, and he showed up immediately (even though it was evening), worked in the dark, and fixed the problem. Awesome service from a terrific guy.