The technician arrived less than 2 hours after I first called and less than halfway through the 4-hour time window they gave me on the phone. He was friendly, quick, thorough, and informative, and gave me tips to prevent the problem from recurring.

I called in the morning and the technician came out the same day. He quickly diagnosed the problem, showed us what caused it, and made the repair. This was my first experience with Cornerstone Contractors, but I will definitely call them again if I need service. I recommend them highly.

Cooled My House After Another AC Company Left Us Hot. Yesterday we called another AC company that came out and looked at our unit, but couldn`t do anything that day and left us without AC and told us they couldn`t do anything until Monday at the earliest. We called (company name) this morning and they came out within two hours of us calling them. They found a work-around that is allowing our house to be cooled off while parts arrive so they can do the real repair. Next time something breaks I`ll definitely be calling (company name) first!

Great Service. I have used these guys repeatedly, they are knowledgeable, prompt, very service-oriented. Best ac service in town.

We were dealing with a system that was ridiculously noisy and inefficient. I called out Cornerstone Contractors, who sent out their technician. He was extremely professional and polite. We decided to replace the system. He and his helper knocked the job out quickly, leaving us with a whisper quiet system. I would recommend them to anyone with HVAC needs.

Very satisfied with the HVAC service they provide. Used them for several years.

Prompt AC service. Solved my problem.

HVAC service was very quick! When I really need a good technician at my home I will call Cornerstone Contractors.

We are very pleased with the work you do for us. Our AC work better than ever. You folks rushed right out and gave us a hand on short notice.

We were pleased with the service and the price. We will call again for sure!

Our air conditioner went out and we had one company came out for an estimate for a faulty fan motor and capacitors, gave us a quote for over $1000.00 dollars to replace it. Contacted Cornerstone Contractors and they gave us for one third of the other company price, they came out the next day early and replaced all parts. Their service was efficient and the price was very reasonable. I highly recommend Cornerstone Contractors, Thanks for saving the day especially when our temperature is reaching very high.

Cornerstone Contractors always gives me excellent and prompt air conditioning service which include the duct cleaning and check of the freon. Also, Cornerstone Contractors saved me money by their excellent advise. I am fully satisfied with the Cornerstone Contractors cause they really know what thay do!

Excellent experience from start to finish. Almost instant response to initial inquiry. Personable, friendly and very professional employees.

All of the work was performed on a very professional basis. Installation ran into a few bumps as our home is a slab ranch with a tiny closet area for the furnace and AC, however everything was figured out and both units operate very efficiently.

We have a new air conditioner and it still has warranty, but the service center doesn`t want to send a worker even to check the problem. They say if we want we can bring the air conditioner to them. So I had to call a HVAC professional. While I was checking yellow pages I found this one. It`s an unpleasant feeling to give your almost new purchase in the hands of some1 you don`t know. But I have to say that in just few hours the conditioner was working very well, like before. I recommend this professionalist!

This is to thank you for the excellent service your Service Advisor provided to me recently. My air conditioner was malfunctioning, he checked out the system, diagnosed the problem, and corrected it. He was competent and courteous. I would certainly recommend your company based on his performance.

We are extremely satisified with Cornerstone Contractors. and thier Service Manager has excellent knowledge and expertise in the AC field." Also, we definitely will have them install our next new Trane system.