Cornerstone AC & Heat LLC

Joseph is an incredible and very knowledgeable Technician. Every time I need him for repair, he is always a text or call away. He is very great at explaining the problems, and is just as quick at finding the solution! Would highly recommend! He has assisted several times on repairs and is proficient every time!

This company was very resourceful. Talked me through some trouble shooting before coming out. Jospeh gave exceptional service and prices were very fair. I would recommend to anyone 10/10. Very communicative!

We had a wonderful experience with Joseph & the Cornerstone team! Joseph was able to come out the day I called, was very professional and personable, and his pricing was fair. He got the repairs done within two days, and we’re super happy with the service! We’ll definitely reach out to him if we ever need help again in the future. 10/10 recommend!

I only called to inquire about a problem I have with my thermostat, so I called Cornerstone and spoke to Joseph, he advised what I should do to save money and fix the issue. Followed his recommendation and my thermostat was working next day - he even texted me next day to do a follow up - this is what I call five start service - you are definitely on my speed dial for my AC and Heating services

I have used Cornerstone for many years. I find them to be very Trustworthy, Skilled and Reliable. I have never had an issue with any of the work performed at my home or any of my rental properties. I highly recommend the Company!

My a/с didn’t cool ,I called this company and on the same day a technician came to me, at a time convenient for me.He arrived on time,checked everything professionally, determined the breakdown and fixed everything quickly. He helped me understand something about good work of my a/c ,checked everything and made sure that everything works good,only then left my house.Very polite, friendly and honest. Thank you for great service,I highly recommend this company

Very Prompt response and did a great job making repairs. Joseph did an awesome job!!

Joseph at A/C & Heat Cornerstone installed an Easystart for my AC. He did a good job with a reasonable price. I would recommend anyone who needs A/C work.

Joseph with Cornerstone AC & Heat LLC always does a great job for us and has installed 2 new AC systems and keeps our AC and furnace systems working well!He also advises us on new technologies and equipment that can help purify the air in our home and installed an air purification system.Joseph is very thorough and he always does a great job!

I called, and Joseph was at my house in less than 30 minutes. After looking at the system and telling me what he thought, he had the part and had the ac back up and running within an hour. Could not be any happier! These guys have become my new AC repair company. Thanks again, Joseph!

My HVAC system malfunctioned, and Joseph responded promptly, arriving within an hour on a Saturday night. He efficiently diagnosed and repaired a faulty relay, demonstrating professionalism in both communication and workmanship. The service was provided at a fair price and I will certainly rely on them again for any future HVAC issues.

I had heater issue and called Joseph to come to take a look at the issue. In no time he was able to fix it and explain to issue to me. He has earned my trust. If I need any work to be done on my AC/Heater, I will reach out to him in the future.

Joseph is truly a gentleman, very honest and give fair price on any AC/Heating job.My heating went out, I called him and he shows up in heavy rain and fix my problem.I definitely recommend him.

Have all my a/c and heating serviced by Cornerstone. Extremely reliable and trustworthy.

Great work by Joseph. Very professional.I would highly recommend this company for any AC / Heat fixes.

I highly recommend Cornerstone AC abd Heating. Our family have been their client for many years. They are experts in their field, very honest, never try to make a quick buck because of high demand. Few days ago my AC stopped working. Joseph was at my house the same morning! Problem was fixed right away. Luckily (or is it him being resourceful) he had spare parts in his truck. Personally, Joseph is a very nice person, very polite, knowledgeable and professional.

I replace my AC system moving from R22 to R410, Work was completed in 1 day. Employees very professional. Ive been using this company since 2005. Excellent service.

We have use Cornerstone AC & Heating for the past 9 years. We had a problem and called and seed service on Sunday. They were very reasonable, on time, quick diagnosis and very professional. Joseph stayed and helped program our new EcoBee thermostat that he installed. I highly recommend Cornerstone AC all you needs. Fantastic company.

Quick and friendly service, even on a hot and humid Sunday evening when my AC went out. Problem resolved within hours. Highly recommend Joseph.

We called and within 1 day we had our technician Joseph come out and repair the problem. Great service and always dependable. Thank you Cornerstone.

We have used Cornerstone for more than 20 years.They are very honest, dependable, and most important reliable.About a month ago I called Joseph in a panic on a Saturday when it was over 100 and our AC went out.He was at our house that afternoon and had the system back up and running soon after. He also let us know that what he repaired was a warranty part and would process the claim for us.We highly recommend Cornerstone for all you’re repairs and maintenance!

Very thankful for cormerstone ac and Joseph reaching out to help me even after hours on next door then being able to come by super early and fixed the issue!!!! Fairly priced and so nice. Ac is everything here in texas!! Thank you so much!!

Highly recommend coming here for your AC services/issues. Joesph was very friendly and provided great service and price with troubleshooting and fixing my AC. Even provided improvements recommendations for easier maintenance.

Joseph is very thorough and always on time. Does a great job and I would highly recommend.

Joseph reviewed by a/c system completely to address what exactly is necessary to fix

Excellent Service. We are very happy with Cornerstone AC & Heat, who was referred to us by a longtime resident of our neighborhood.

Joseph is thoughtful, honest, and thorough - great service and value!

Cornerstone has been our go to business for the last 10 years. Always honest, professional and on time.

Cornerstone is always great. Diagnoses problem and corrects them quickly. Professional, yet friendly.

Mike and Joseph worked long hours and successfully found what the prior A/C system installers forgot - to properly ground the system. This year, Joseph came out and checked the A/C - which was operating heroically during our 100+ degree months!

Cornerstone has kept our old AC unit running for many years. They show up in a reasonable amount of time, and let us know exactly what we need - not what they want to sell!

I have had him out Many times, he is always tells me the problem and fixes it with minimal costs. He is on the customers side.

They did an excellent job and prices are reasonable.

New thermostat works well and a. Clean drain line is keeping us cool and comfortable!

Great quick service! Will definitely call them again if I have any ac needs!!

Joseph did a great job. Will definitely have him back when needed.

Love these guys, very friendly, honest and knowledgeable

Happy with the service provided.

Knowledge full, courteous and reasonably priced..

Always great service

We received a quality services at a fair price!

Great people to count on for service to your system, fair and honest.

Always excellent service! Joseph is A1!!

Very professional, respond timely, good value for money spent.

Thorough and professional!

Very responsive and trustworthy.

Great service. They came out the same day I requested services and they were very detailed in explaining the issues with my system. I recommend their services.