Serving Ennis and all of Ellis and Navarro Counties
BUILT ON TRUST. POWERED BY EXPERIENCE.
Full Service Residential & Commercial
HVAC INSTALLATION & MAINTENANCE
Phone: 972.875.5747
Hours: M-F 7:30am-4:30pm
For 70 Years:
Experience You Can Trust,
Quality You Can Count On
ABOUT HAMIL, HARRISON & CO., LLC
Since 1955, Hamil, Harrison & Co. LLC has proudly served the Ellis and Navarro communities with dependable, high-quality heating and air conditioning service. What began as a small, locally owned business has grown into a trusted HVAC company now led by James Davis and Scott Payne, alongside a dedicated team of skilled technicians and knowledgeable office staff.
Experience You Can Trust
As homeowners and families ourselves, we understand how disruptive a heating or cooling issue can be. That’s why we prioritize professional service, affordable solutions, and long-term reliability. Our technicians are fully licensed, insured, and continuously trained in the latest HVAC systems and technologies to ensure we deliver top-tier service to every home and business. From small repairs to full system installations, Hamil, Harrison & Co. LLC has the experience and tools to get the job done right, the first time, and at a price that makes sense.
WHAT OUR CUSTOMERS SAY
We fully recommend Hamil-Harrison for any HVAC issues. They have been our #1 go to company for years because of their prompt response time, trustworthiness and honest pricing. We are always confident that the job will be completed to our satisfaction!
These gentlemen are the very best. They come out quickly, assess things and typically carry a supply of parts with them to get you up and going as soon as possible. They do honest and dependable work. They are genuine people who truly care about their customers and don’t try to rake you over the coals with things that are not needed.
WOW! After calling over half a dozen other AC repair companies that couldn’t make it the same day, Hamil Harrison had someone out AND MY REPAIR DONE within ONE HOUR! Very knowledgeable and friendly, and very reasonable rates!
OUR SERVICES
RESIDENTAL HVAC
MAINTENANCE & REPAIR
VENTILATION SYSTEMS
CUSTOM FILTER SERVICES
COMMERCIAL HVAC
ENERGY SAVING SYSTEMS
EMERGENCY SERVICES
BI-ANNUAL PREVENTATIVE MAINTENANCE
Licensed and State Registered Service Technicians
TACLA35040C
TACLB56943E
OFFICIAL TRANE® DEALER
and COMFORT SPECIALIST
Hamil, Harrison & Co. LLC is proud to be a certified Trane Comfort Specialist—a distinction awarded only to HVAC contractors who meet Trane’s strict standards for technical expertise, customer satisfaction, and ongoing training. As an official Trane contractor, we’re equipped to install and service some of the most reliable and energy-efficient air conditioning systems on the market. This certification is more than a badge—it’s a promise that you’re getting top-tier products and service from a team that Trane trusts.
Get in touch
We’d love to hear from you! Whether you have questions, need a quote, or just want to chat about your HVAC needs, our team is here to help. Rest assured—we won’t spam you or share your information with anyone. Simply leave us a message and the best way to reach you, and we’ll get back to you as soon as possible with the answers you’re looking for.
Prefer to talk now?
Call us at 972-875-5747.