top of page



Fay K-Covina, CA.

To Whom it may concern,

I recently had a new Coleman furnace put in my mobile home, but before Mr. Cortez just replaced it- he and his crew checked everything out thoroughly to see if my old heater could be fixed.

Being a senior of 83 years old and a former teacher he did everything possible to save me money, he was very professional, did excellent work and I certainly would highly recommend Sinclair heating and air conditioning to anyone who needs his service.


Fay Kulp


Dena & Max - Diamond Bar, Ca.

"Dear Rick,

Your Team is Awesome!

Thank you for getting my heater repaired "ASAP." It was freezing in this house for the Past 2 months! I did not want to become a pest so I dealt with it, finally I decided it was time to call. Previously I had to wear 2 robes, scarf, beanie and my uggs, but now its so wonderful and warm in here!! So I sincerely thank you and your team and greatly appreciate the service.

I am grateful for all you have done. God Bless you. Merry Christmas and Best Wishes for you all for a New Year filled with much happiness and good health!!"

Todd - Whitter, CA.


Dear Rick,

Thanks again for the excellent effort on the recent system installation you completed for me in Whittier. Having spent the last 30 years in the Southern California construction industry, I've had the opportunity to clearly discern the difference between companies that "really" care about the client and those who just care about the check. Your professionalism and superior service is appreciated. I won't hesitate to contact you regarding upcoming projects."


Rob - West Covina, CA.

I had been putting off installing central air conditioning for at least five years because I feared the costs and labor involved would not be worth the benefit of a cool house. In waiting, my family endured summer after summer of record breaking heat with just a swamp cooler in the living room. When I finally broke down and began pricing contractors, I came across Sinclair Airs Ad in the Tribune and was impressed that the ad mentioned a senior discount. When I compared the quotes, Sinclair came out lower than the others I had received. It isnt common for an advertised senior discount to reflect actual savings, but Ricks price was fair and saved me a lot of money.


Jose M.

Covina, CA

Just a note to tell you how pleased we are with the new 5 Ton Carrier/Bryant heating and air conditioning system you and your crew installed in our house a few days ago! I could not believe how fast the whole thing went, from our pleasant phone conversation a few days prior, to the turn-on of this modern, high efficiency system. Our old air conditioning/heating system was the original installed 30 years ago!!

Your crew was marvelous, very courteous and absolutely tops in performing their jobs. This was a major R & R and it took only a few hours. And it works so well! The system is much quieter than our old antique. The air is colder. The blower is about three times as powerful. I am really impressed. The controller is very smart as well. Amazing what a difference a few years makes!

I had no other quotes than yours, and signed on immediately because I knew you were offering us a really good price for the system! I will pass the word to all of our friends and hope they will become your customers also. Feel free to share this letter with prospective customers.


Joann - Altadena, CA.

Thanks so much for the way you quickly handled the minor issues that came up yesterday. Personally visiting my home to take care of things was a nice touch.

I also wanted to take the time to commend the various personnel at Sinclair Air. During my first call to your office, I was greeted in a very professional and cheerful manner by Miranda, which gave me a positive feeling about your business right from the start. This feeling continued through my meeting with you and then throughout the day of installation. You have a wonderful team of guys working for you who represent your company well. Steve, Joe, Johnny and Sean were courteous, friendly and respectful. They also seemed to work very well together and we heard lots of please and thank you used among them even when they did not know we were listening. Steve and Joe stayed behind to test the heating and air system to be sure everything was working properly. Steve also took the time to be sure I understood my new equipment and patiently answered all of my questions.

It has been a really good experience working with your company. I have already referred Sinclair Air to one of my co-workers and would not hesitate to do the same with anyone else who is looking for an air/heating contractor. You have my best wishes for much success to you and your business and judging by the way you dealt with me and my family, I have faith that your company will thrive.


Sinclair Air Systems 721 E. San Bernardino Rd. Covina, Ca 91723 California State Contractors License #724978

bottom of page