G S M A/C & General Contractor INC.

We have been using GSM since 2004. Not only for all our business locations, but for my home too! Guillermo is the best, and I consider him my friend! He is the most honest, straight forward person I have ever met. He's never tried to "make a quick sale" for the money. He's always had what's best for the customer mindset, not for his bottom line. I can't recommend anybody but him! Thank you, my friend!

Guillermo did a great job repairing my A/C!

They are great! Came out the same day my husband called, gave an estimate to replace the a/c unit. Came early the next day, were very professional and quick, got it done! I am very happy with their services!

Mr. Sammartin came out and serviced my HVAC the same day. He was professional and he had the part that I needed on his truck. I definitely would recommend him and I will be using him for all future HVAC services.

Guillermo and Michel showed up promptly at my house after I called them about my AC system not cooling enough. They methodically diagnosed the root cause of the problem and gave me a competitive price. They did the repairs and service in the most professional and efficient way. Worksite neat and tidy after work.
Courteous, professional, experienced, knowledgeable and amazing crew!!!
I will not hesitate to recommend them to anyone who needs AC work done by true professionals.

Guillermo is the best! He's saved my old unit a couple times and is worth his weight on gold. Highly recommend him and his crew.

I loved their attention, perfect treatment, perfect work, punctual and efficient. Recommended

Mr. Martin provided amazing services today in less than an hour. He saved me from a full day of this Houston heat because the night was a rough one. I look forward to doing business with GSM in the future. Thanks for your honesty and excellent customer service.

Guillermo and Michel of GSM A/C & General Contractors were fantastic. The group was prompt, thorough in their evaluation, and did great work in much less time than expected. They were all respectful, cleaned up after themselves, and really did a great job overall. We would gladly recommend them for any and all HVAC needs.

Excellent service on the phone and in person, very professional and friendly, fast and efficient.