EXCELLENT  
  
 Based on 143 reviews 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Carlos Bonilla 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
I reached out since my parents were having issues with their AC. They went out to diagnose the issue, picked up the part and had the unit running that same day. Thanks to Mario my parents were able to sleep that night with AC. Its hard to find knowledge, trustworthy people who take pride in their work. Look no further and give them a call!

Owner's reply
Carlos, thank you for the kind words and for trusting us to help your parents. We're so glad Mario and the team could diagnose the issue, get the part, and have the AC running the same day so they could sleep comfortably. We appreciate you recognizing our commitment to knowledgeable, trustworthy work. Thanks for recommending us.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Jazmin Rodriguez 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
Having the yearly maintenance plan is a huge plus! I called Mario to set up a maintenance check, and I was quickly scheduled in, and had his team come by to unclog drain pipes, switch filters, and do a maintenance check on the attic and outside AC unit.  I always waited to call Mario until something was messed up, now I can have peace of mind knowing my system is in good condition when he checks during summer and winter maintenance. Highly recommend!

Owner's reply
Jazmin, thank you so much for the kind review and for trusting our yearly maintenance plan. I'm glad Mario and the team were able to get you scheduled quickly and take care of the drain pipes, filter changes, and the attic and outdoor AC checks. It means a lot to know the maintenance visits are giving you peace of mind. We appreciate the recommendation and look forward to keeping your system in great shape for summers and winters to come.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 John Karrer 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
Great company to do business with. I was expecting to buy a new system. The tech looked at my unit and said he could fix it and a new unit would not be necessary. He fixed it for a very fair price. The other estimates stated I had to have a new system period! Thank you for your honest and professional service.

Owner's reply
John, thank you for the kind words and for choosing us. We’re glad our technician was able to repair your unit and save you the expense of a new system. Honest, professional service and fair pricing are priorities for our team. Please reach out anytime if you need assistance in the future.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Julio Carrasco 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
I had a great experience with Cool Masters AC & Heating. Mario was professional, friendly, and explained everything clearly throughout the service visit. They arrived on time, diagnosed the issue quickly, and got everything taken care of efficiently. The quality of the work and customer service was excellent, and I really appreciated how honest and respectful they were. I would definitely recommend Cool Masters AC & Heating to anyone looking for reliable HVAC service. Thanks again, Mario!

Owner's reply
Thank you for the kind review, Julio. We're thrilled Mario provided professional, timely, and honest service and that everything was handled efficiently. We appreciate your recommendation and are glad the quality and customer service met your expectations. Please call us anytime for future HVAC needs.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Andres Diazgranados 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
Professional service, reliable, and helpful hardly recommended

Owner's reply
Thank you, Andres, for your kind review! We truly appreciate your recommendation and are glad you had a great experience with our team. Providing professional, reliable HVAC service and helping our customers find the right solutions is always our top priority. Thank you for choosing Cool-Masters AC & Heating LLC. If you ever need AC repair, heating services, or routine HVAC maintenance, we’re always here to help!
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 TTI Imaging 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
Mario and Cool Masters are simply the best ! In the hottest spell we've had a long while, my AC blower motor decides to give up the ghost. Mario came, diagnosed and repaired on the spot and my family went to bed, COOL !

Owner's reply
Thank you so much, Mike, for taking the time to leave us such a great review! We truly appreciate your kind words and are glad Mario was able to quickly diagnose and repair your HVAC system when you needed it most. We know how important a working air conditioner is during the Texas heat, and we’re happy your family was able to enjoy a cool, comfortable night. Thank you for trusting Cool-Masters AC & Heating LLC with your AC repair. If you ever need HVAC repair, maintenance, or a new system in the future, we’re always here to help!
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Ronak Patel 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
I’d avoid saying he “fixed the Freon leak” because you don’t know that yet. Based on the invoice, he added leak sealant and UV dye, but the leak hasn’t been confirmed as repaired.

A more accurate review would be:

Mario was excellent. My upstairs AC wasn’t cooling, and he arrived on time as scheduled. He performed a thorough diagnosis, explained what he found, and gave me a fair and honest assessment. Instead of trying to upsell me on expensive repairs or a new system, he worked with me to find the most economical solution. He added refrigerant, installed leak sealant with UV dye, and got my system cooling properly again while giving us a plan to come back and locate the leak if it returns. I really appreciated that he took the time to explain everything and answer my questions. He’s a trustworthy, honest guy, and I wouldn’t hesitate to use him again. I would absolutely recommend Mario to my family and friends.

Owner's reply
Thank you so much for your thoughtful review, Ronak. We truly appreciate you taking the time to share your experience and for highlighting the importance of accurate communication. At Cool-Masters AC & Heating, we believe in honest HVAC diagnostics, transparent recommendations, and finding the best solution for every customer—not simply recommending the most expensive repair. We’re glad Mario was able to get your air conditioning system cooling again and explain the next steps if additional AC repair is needed. Thank you for trusting us with your home comfort, and we look forward to helping you whenever you need reliable heating and air conditioning service.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Estela Chavira 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
They are very good, professional, and honest about everything; they know what they are doing. I recommend them 100%.

Owner's reply
Thank you, Estela, we really appreciate your kind words and 100% recommendation. We're glad our team's professionalism, honesty, and expertise made your experience positive. We look forward to serving you again whenever you need us.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 moon din 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
good service

Owner's reply
Thank you for your kind review, Moon Din. We're glad you enjoyed our service and look forward to serving you again soon.
  
 
  
 
 
 
 Posted on Google  
 
  
 
 
 Jimmie Benton 
 
 
 
 Trustindex verifies that the original source of the review is Google. 
Timely, professional, quality work.
Reasonable price!!

Owner's reply
Thank you Mr Benton; we appreciate you giving US your feedback, thank you for sharing your experience and the trust working with US.
  
 
  
 
 
 
   
 
 Verified by Trustindex  
Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more