My AC was broke and I needed someone to come out, diagnose the problem and give me an estimate. What I got was a complete jerk who kind of glanced at my unit and then game me a quote for a gold-plated replacement. While he was here he'd ask me questions and mock my answers. I had another guy from Sinclair service my AC 3 years ago who was nearly a rude. They may do good work, but they're rude and take advantage of the customer. I'll NEVER do business with them again. read more

I called them 3 times for a estimate. Each time i was told they would get back to me. Never did

Ricky was excellent, great customer service. He went waaay beyond and fixing my problem. He was so helpful, and patient. I needed a part for the job that I thought I already had but couldn't find it. He took time to help me get the part. If you need AC service give Sinclair Systems a call. They are polite, professional and knowledgeable, traits that are hard to come by nowadays. 7/31/25 read more

Recently had Sinclair come out for a hvac inspection and couldn't be happier with their service and professionalism. We have been fortunate in that we haven't had any issues with our system over the past 10 years but wanted someone to check the freon level. My wife coordinated the inspection with Sinclair since a few other owners in our community had used them in the past. When Rick showed up, I kept scratching my head as to why he looked familiar and couldn't pin point where I had seen/met him even though he didn't recall ever servicing our unit. Rick ended up adding ~ 2 lbs of refrigerant and changed out the switch and capacitor. Appreciated his honesty while pointing out what parts were likely to fail in the near future and knew I didn't want them to go out during a heatwave. After the work was completed, I finally remembered that Sinclair was the company that installed the hvac system at my parent's house back in 2004. Crazy to think I've know Rick for over 18 years!! Couldn't be happier with their work and would recommend them in a heartbeat! read more

I recommend Sinclair Air Systems. We needed to have a dryer vent to be unclogged. It was in bad shape. The vent was unclogged to my satisfaction. I am a delighted customer. read more

Sinclair Air Systems - Vent opening to the exterior of the house is cleaned out of dirt and lint. - Heating & Air Conditioning/HVAC Near Me - La Verne, California

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Rick and his team really do have exceptional customer service. Greg came to take a look at our A/C that stopped blowing cool air only a month after having refilled the refrigerant for the first time in 7 yrs (after experiencing the lack of cold air blowing in the heat of summer). He found what he thought was the only problem (valves near the compressor weren't tightened all the way) and was gonna call it a day after seeing that the pressure seemed to hold, but thankfully he stayed a lil longer and realized the pressure was indeed dropping. After getting some refrigerant and a leak sniffer dropped off for him, Greg was able to diagnose a big leak in the evaporator coil. Rick called to let me know what the situation was and expressed sympathy for what I've been having to deal w/ (e.g. $$ down the drain from all the paid-for refrigerant leaking out in a month) and gave me a good offer for 1) the leak detection work and 2) the work that'd be needed to replace the evaporator coil. I was talking w/ another HVAC company at the time (for quotes) that had come the day before and suggested using a UV sealing liquid that works in 70% of cases and doubles as a way to detect where a leak is in the future. That company called me in the middle of my talking w/ Rick's team (e.g. Susie who processes payments), and when I shared that the leak was found and what was recommended, the other company's owner said he'd still go w/ his plan w/ the UV sealing liquid cuz it's cheaper and had worked in all cases of his except 1. I felt stuck and unsure at that point what to do. Rick called me to follow-up on what my decision would be, and after I shared what I heard from the other company (fully intending to still go w/ Sinclair Air Systems since they found the leak, but just unsure which solution to implement), he explained the details and reasoning for why it made sense to do the replacement of the whole evaporator coil. I felt confident going w/ that solution after the call. I was also appreciative of Susie's initiative on our call when she was exchanging payment details w/ me where she picked up on the fact that it would be a lot to Zelle the whole amount over in 1 go & thus why I wanted to put it on a credit card. They have a transaction fee that's added on top of the bill if a credit card is used, which is kind of significant, but they were willing to split that btwn us. One more story before I finish is that they included for free a safety switch for if condensation accumulation was too great. That was unbeknownst to me, and thankfully, came into use right after b/c some time after Greg left after final touches, the compressor fan stopped working. I called and left a voicemail and was called back by the team for confirmation that they'll return the next day to figure out what went wrong. Greg returned and said he was pretty sure what the issue was, which is that the safety switch got triggered, which means he needed to make s'more adjustments for the evaporator coil to be properly elevated (was tricky due to the new one being a different size, and our crawl space/attic above the garage not having much room to maneuver within). Rick's team is personable and knowledgeable, and I've made sure my neighbors know about Sinclair Air Systems' honest work. read more

A year ago, Rick and his team replaced our 20+year old system with an AC Pro air conditioning unit and heater. They also installed a Quiet Cool whole house fan. We have been very happy with their work! I waited a year to post as I wanted to see how the units worked and it's been great!! They were hard workers who kept us abreast of what they were doing and any problems were quickly handled. We would highly recommend Sinclair Air Systems! read more

Was able to get same day service and addressed the issue promptly. Will consider for future issues.

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!!!!! read more

Sinclair Air Systems - Capacitor - Heating & Air Conditioning/HVAC Near Me - La Verne, California

I had Sinclair installed my a/c in 2015. I called Susan to make an appointment for the maintenance since my a/c stopped working. She responded very quick and had the technician came the next day. The technician is very knowledgeable regarding the issue and work professional. Overall they fix the issue and I'm definitely recommend this company. The cost is reasonable. read more

So thankful for Sinclair Air! We needed help updating our thermostat and were able to get a quote and installation done on the same day! Very kind & honest father-and-son duo that we had the pleasure of meeting. Thank you Rick & Ricky for your amazing service, and Susie for helping us coordinate everything! read more

I had a problem with my air conditioner and called Susie. I could not have received a more positive response. The serviceman was very professional so polite. Thank you Susie and Rick. read more

CONSUMER BEWARE****Do not use this company. If you are even considering using this company understand that the price of installation is not worth the numerous issues. Call around, look at reviews, go to cslb.ca.gov/ Rick is the owner; and wife Susie in office. Rick attempted to install a broken AC unit. He lied about the job, said frozen AC unit meant our AC was working. If he gives you a price and it seems too good to be true, well it is. He will also tell you how other companies are ripping you off and how honest he is. They were also practicing with a suspended license and just got it reinstated. They spent a week+ to install a broken unit that we later found out was entirely different unit from our contract. Rick was rude and condescending, and when he had to come back to our house to "attempt to fix the unit", he was angry. He had informed us how busy he was to fix his broken unit. This man is a liar and unprofessional. He lied about a wrong ac unit and ac issues we had. I am shocked if anyone had a positive outcome for the horrible work performed. This bad installation could have caused our attic to flood with their "botched incomplete installation " Sinclair Air did not pull a City Permit which is required. They would not have been able to do so with an expired license. I would not have given a star but had to for review. read more

Another great experience with Sinclair Air Systems! With temperatures over 100° and no a/c, it's a real problem. I reached out to Sinclair Air and was greeted by Susie - how nice to call a business and have an actual human answer the phone and assist you! Between dealings with Susie, Rick, and the technician, they were able to get our issue resolved and I will sleep a whole lot better tonight with my a/c running again. Everyone we dealt with was attentive and professional from beginning to end. Very reasonably priced and great service - we are happy customers for life! read more

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. read more

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. read more

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!!!!! read more

My husband was told he needed an appointment for a quote, so he set one up for 12:45-1pm. When I got there and tried to park, where they told us to, one of their workers (according to him) tried to hit my car with their truck! Needless to say I cancelled my appointment but the person who answered said that no appointment was needed and didn't have one. We're service and dangerous read more

I just had a new heating and AC system put in by Sinclair Air, I got a few estimates but when I met the owner Rick I knew I was going to go with them! Great guy, super friendly, The company has been around a long time, great price and customer service, The workers were nice and friendly and Rick was over toward the end making sure everything worked perfect, I highly recommend them if you need a new AC system! read more

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! read more

So in April we contacted Sinclair Air for a quote to replace our HVAC system. They quoted us $4800 for the system. We didn't commit because we were working on other remodeling projects and our funds were tied. Sinclair Air offered us a deal, we would pay a portion of the $4800 when the system was installed and the rest later. That was pretty generous, and they were slow at the time so it worked out for both of us. The installer came to install the system, checked out the existing system and said we needed new ducts, we have about 7 ducts total and they wanted an additional $1500 for that. Seeing that they were already there, we figured we had no choice and agreed. While taking the old system down from our attic, the ladder for the installer slipped and he dropped the old system and left a nice gash on our closet door and door trim. While removing the old thermostat, he left a nice gash in the wall. Not only t hat but dirty hand prints all over the house. He made one more mistake that would not be discovered until June 16th and the reason for this post. Apparently while installing the system, he stepped on a pvc pipe for the drain. By doing so all the condensation from the system didnt drain, but accumulated in the ceiling. On June 16th we came home to a leaking ceiling. No one has been in the attic since the HVAC install so we called Sinclair Air, they sent a tech out on June 17th, Wednesday, and discovered the error. We were told someone would call us back on Thursday. We did not receive a call, so we called Sinclair Air, they told us they have been busy and have not met with the tech in the office. We took pictures of the damage, and emailed them. The tech already spoke with someone from Sinclair Air over the phone and notified them of the issue. I call Sinclair Air again on Friday at 2pm to see what the status is. At this time the lady told me she was the only one at the office and was busy. It is summer season and is probably very busy for them, but how they run their office is not my business or problem. If they decide to not staff enough employees to handle the busy season, it is a decision they make that impacts customer service. The lady told me they will call me Monday. I wait for their call Monday and around 4pm again with no calls from them I call to see what the status is. The lady has Rick call me and he goes into a spiel on how he offered me the payment plan and he asked if I got quotes from other companies. I told him him I did not seek quotes from other companies and I simply went with him. He goes on about how he offered the payment plan and how he probably saved me at least $1200 from competitors and I should be patient as he tries to get his paint guy out here. He said he would call me back on Wednesday the 24th to schedule the paint guy to come out. Again like the rest, no call from them. Accidents happen, we were calm and patient with them. I only expect one thing, if you say you are going to do something, do it, dont make me chase after you for an update. The least I expect is to keep me updated, dont make me call to get an update when you forget to call. How a company responds when there is an issue speaks volumes, so far Sinclair Air gets a fail in that department. read more

Sinclair Air Systems - Ceiling damage left by Sinclair because they left a drain pipe disconnected. - Heating & Air Conditioning/HVAC Near Me - La Verne, California

Excellent customer service!! Sinclair Air had my a/c up and running in minutes. Highly recommend their services.

I called about 2 weeks ago to get a free quote. My 30 year old AC was dead. 5 days to get a tech to my house. He told me exactly what I told him and wanted to charge me $95 for a service call! Nothing to service, AC was dead! Suzy at the office promised me a free quote. 2 weeks later still no quote, they charged me $95 for nothing! After that they refused to answer my calls or return any messages. Once I finally got a hold Rick he just yelled at me and said "they are overwhelmed" and hu. NOT TO OVERWHELMED TO CHARGE ME FOR NO WORK DONE.... BEWARE read more

This company was extremely difficult to schedule with - we kept playing phone tag with the receptionist who would rarely call back when she said she would. When we finally got an initial diagnostic appointment, they charged us far more than other companies, did not wear masks, and left dirt all over our floor. The repairs required follow-up, but after a week, we didn't hear anything from them, so we tried calling to check on the status. The receptionist did not know and said they would get back to us, which they did not. After another week, we got fed up and let them know we were going to go with another company. The receptionist was apologetic and said that the repair guy would likely get in touch with us. Several weeks later, we have not heard a peep from them. We went with another company that was extremely easy to schedule with and completed the repairs needed quickly. read more

Called these guys a couple times and was told they would call me back to schedule appointment, and they didn't callback. Sinclair was original installer of my AC system over 10 years ago and the system barely kept house cool on hot days and ran all the time. Been with these guys for years, but always felt system wasn't sized right or something was wrong. Finally decided to call someone else today, and first observation they made was that the intake duct wasn't the right size - too small - for 4 ton system. Lots of other stuff to say but just not happy with this company. read more

My air conditioner was not cold. I asked them to repair it. I asked for a leave of absence and waited at home. They finally arrived. After two hours, I went to check it. People left early and didn't say anything. A few days later a bill for the inspection fee of $145 was sent. Called to ask and no reasonable explanation was given. I don't recommend getting them to fix it. read more

Worst experience ever. Bad communication. Horrible customer service. No sense of urgency. Every issue created by Sinclair is met with excuses. Unprofessional technicians. With no etiquette or customer service skills. If I could rate them 0 stars I would. read more

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. read more

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 nack 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! read more

Horrible experience! My wife and I were recommended to Sinclair by a friend. Our 30+ year old a/c died and we knew that. All we wanted was a quote to compare with other companies. Their tech came over and right away started working. We thought it was part of the quote process (they were the first company we called). Their tech said our a/c needed to be replaced. Really! Your not telling us anything new. As you can imagine we were appalled when he asked for $95 service fee! He said don't worry, that money could be applied to the overall cost of the new a/c. As if he was positive we were buying from them! We foolishly paid in exchange for a quote. A WEEK later still no quote but they sure took our money! My wife called to follow up and rudely they said they were backed up and hung up on her!! If that's the customer service we can expect before, i feel bad for the people who actually purchased. Keep the quote. We'll take our business somewhere else. read more

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. read more

The worst service ever .They do not call when they say they will. When they can not fix your heater they give you a song and dance. After that they will not return because they can't fix it . They are good at guessing what is wrong and pay reguard less of weather they fix it or not. They just guess. They where never on time .Always 2 to3 hours late They stink read more

I'm in my cool home thanks to Sinclair Air Systems. From the first time I called the receptionist was pleasant and called me back with the status of their arrival time. They gave me several options for the repair work. They were hard workers, courteous and cleaned up when the job was completed. When closing the work-order, Rick Cortez offered additional energy saving ideas. Staying COOL. Thanks to the Sinclair team. read more

Sinclair Air Systems - Heating & Air Conditioning/HVAC Near Me - La Verne, California

I called Rick for advise on some electrical issues I started having which have nothing to do with the Air Conditioning. Rick called me right back and asked me to come in and get some supplies (at no charge, that just doesn't happen these days!) I dropped in for a quick visit picked up the supplies he offered. I no longer am having the electrical problems THANK YOU RICK AND SUSIE!!! Lunch was delicious as well (another sweet gesture.) I can not say enough about Sinclair Air. Our home is a happy cold home again. I Thank God for good people in the world like Rick and Susie. I highly recommend Sinclair Air Systems for all your heating and cooling issues. Loni Dena Pomona, CA read more

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 read more

I have to say, these guys are great people. I've used them at my office and at my house and my parent's house. They offer great service and have really jumped thru hoops for me. I'll be a customer for a long time. read more

ABSOLUTELY FANTASTIC SERVICE...... I called 7:00 am and Eddie the technician was at my door. By 10:00 am. Eddie was very professional and knowledgeable. Susie and Rick, thank you thank you. Cannot wait for quote and installation of new and efficient unit! read more

Warning! Do not do business with this company. First of all, they are terrible with their scheduling. Good luck even getting a quote or work done in a timely manner. They never call back, you always have to reach out to them! This company is a scam. While mid installation, they said they will add on more than the original price! Also, after fully installing our AC, our bill was $1,000 more than what we talked about from the start!! After we dealt with that nightmare, the A/C didn't even work correctly! It was blowing unevenly! Then when we tried to schedule another appointment for them to fix it, they kept on pushing back the date and never showed up until months later! If you are wanting a new a/c unit, do not go through this company. read more

So first off I would like to thank the entire staff at Sinclair air!! Thank you so so much! I don't know how you guys did it in peak season and record breaking heat waves of the week to come out to my house and replace my entire unit all in ONE day! WOW! You guys have very empathetic and caring staff that work extra hard. I really appreciated that. So on Thursday evening my AC went out and was not working all night. It was 90 overnight so my wife took the kids to my in laws' house because it was unbearable. I called Friday afternoon requesting for someone to come and check out my unit. I spoke to Miranda who said she would have to call me back because everybody was in the field. She called later saying she was going to send out Rick. I got the horrible news that the motor was out, which I kind of figured after talking to several other friends who work on AC units (but were out of town since it was Labor Day weekend). Rick gave me a reasonable estimate, I thought about it and worked up a deal. That same afternoon the unit arrived and I had two guys work on it then later came Rick again (the owner). I felt I was in great hands because he was easy to establish trust and good rapport with. It felt even better chilling in a house with 76 inside and about 100 outside that same evening. Thank you again guys! read more

I posted a one-star review in 2014 after Sinclair installed my new unit. After three years of on again, off again, performance by the unit, which intermittently would start or not start, it was discovered that the thermostat had been improperly installed -- one wire was left completely out of the "loop" and caused the unit to malfunction. This again represented totally shoddy workmanship on the part of Sinclair. I cannot believe that this company is still in business and seriously warn people NOT to use this company. read more