Since 1955, Hamil, Harrison & Co. LLC. has been serving customers in Ennis, Texas and the surrounding areas. We offer quality heating, cooling, HVAC equipment installations and more. As a full-service HVAC company, our team of technicians work hard to provide every customer with the highest level of service possible.

As an authorized Trane dealer, we offer the highest quality of systems for your home or business. From system installations and repairs to cooling/heating equipment cleaning, we can help. At Hamil, Harrison & Co. LLC it is our mission to complete every job on time and within the budget we have set.

We will do what needs to be done to ensure your HVAC equipment is running at peak efficiency. It is our dedication to our customers that truly sets us apart from other companies and has allowed us to grow in our industry over the years. For service you can trust and rely on for all of your heating and cooling needs, call us 972-875-5747 today!

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About Us Report

Hamil, Harrison & Co. LLC opened our doors in 1955 to provide the Ennis community with quality heating and air repairs, installation, and maintenance. Today, James Davis, Scott Payne, and Mike Harrison own and manage the company, which includes a team of technicians and office staff.

Services Report

At Hamil, Harrison & Co. LLC we work to provide our customers with kind and courteous service. We go out of our way to make sure that every customer is happy with the work they have received. Our technicians are certified and trained in our field of work, and continuously keep up to date with any changes occurring in the world of HVAC services.

Faq Report

The average lifespan of a system is 15 years. You may get more or less out of a system depending how hard it is used. There is always a more efficient unit coming along, which is always a good reason to upgrade your system. Your heating, cooling, or air quality system is responsible for approximately 65 percent of your power bill.

We understand that choosing a heating and air company you can trust can be difficult. When you deal with Hamil, Harrison & Co. LLC you can be sure that you will work with qualified professionals that have your best interests in mind and will provide you with the highest quality of work.

Reviews (10)

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Ted Redd

May 22, 2021

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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Just good old fashioned service. Called in on a Saturday morning and before noon we were back up and working. Victor showed up explained to my wife what the problem was fixed it and was out in no time. Professionalism at it's very best. Great service and price. Pleasure doing business with this company.
Service: AC repair

Renae Stiff

May 02, 2021

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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
WOW! After calling over half a dozen other AC Repair Companies that couldn't make it same day... Hamil Harrison had someone out AND MY REPAIR DONE with ONE HOUR! WOW Very knowledgeable and friendly repair-man (Angel). And very reasonable rates! Thank you Hamil Harrison! Nothing is worse than no AC in Texas!
Service: AC repair

Jenny Allbright

Jun 18, 2020

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This place is the absolute best!!! The are kind, honest, professional, fast, and so on. We have had the owner and Victor help us! They are amazing!! We will never go elsewhere. We have referred and continue to refer them to all our friends and family!!
Services: AC installation, AC repair, HVAC repair

Donna Trantham

Oct 06, 2019

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Great service! Was here within 30 minutes when I didn't even call until right before they closed. Victor Garcia was our technician, he was courteous, knowledgeable and honest. We were very satisfied with the service received, and have already noted our calendar to call again for maintenance. Highly recommend!

Casandra Ball

Sep 12, 2019

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I called this morning, they were out right after lunch, had the necessary parts on the truck and had my AC running in less than an hour. Bonus points Victor fixed the temperature control in the house without being asked. Respectful, thoughtful and professional.

Emily S.

Sep 15, 2017

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I gave 5 stars because every has said their service great. I don't know because I didn't hire them I'm just here to comment on one of their drivers. One of their drivers was at a complete stop the drove into a turn lane cutting me off. Not only is this rude but it put me and my five children's lives in jeopardy. I'm sure they have great service though :)

Matt P.

Dec 22, 2015

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Hamil, Harrison & Co. LLC did a very fine job on my heating and cooling units. They answered any of my questions when asked and finished right on time as expected. Very satisfied!

Kenny Carpenter

Dec 10, 2015

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I have been using this amazing company for over two decades! They have done quite a bit of work on my AC units, a lot of check ups, repairs, etc. They are consistently wonderful, from the office staff to their service technicians. I highly recommend them to anyone in the area.

Cody Prince

Jul 27, 2015

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I've done business with Hamill, Harrison & Co. a few times now and had great experiences every time. Their service techs are always competent, helpful, and friendly, no matter what the job is. I can't think of anything they can improve on, they are quite good.

Kelsey Dahlgren

Oct 15, 2014

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Hamil & Harrison & Co are as good as they get in regards to high quality service. They were absolutely perfect with the installation of our new unit that was put in at the beginning of the year. The installation was timely and they answered all of our questions. They even made sure to instruct us on how to use the new unit! I couldn't be more impressed with their company!