“He quickly diagnosed the problem, got our system running again, and made sure everything was working properly before he left.”
Andrea Fabricius, Google
Tomball, Texas
Firefighter-owned. That is not marketing, it explains the hours we keep.
Steadfast AC Service is a family owned, firefighter-owned HVAC contractor run by James Dillon out of unit C4 on FM 2978 in Tomball. Our own posted office hours are Monday to Friday, 8:00 AM to 5:00 PM, and we are closed Saturday and Sunday. After-hours emergency service is genuinely available on top of that, and the Google reviews back it up: a Sunday night, a Father's Day, a technician back the next morning to check his own work before he considers a job finished.
We are a York dealer, but we service all makes and models, because most homes and businesses around Tomball, Spring, Cypress and The Woodlands are not running a single brand by the time we get the call. Steadfast AC Service LLC holds Texas licence TACLA166258C, regulated by the Texas Department of Licensing and Regulation.
Unit C4, FM 2978
A real shop, not a truck and a phone number.
The address is 23802 FM 2978 Rd. Ste C4, Tomball, TX 77375. Nothing on this site or on our own listing points anywhere else, and it never will.
Serving Tomball, Spring, Cypress and The Woodlands. A shop that stays put in one town is also a shop that keeps answering the phone in that town, year after year.
Equipment
York dealer, but not York only
We install York equipment and stand behind it, but a repair or maintenance call is never turned away because a system was put in by somebody else. We handle all makes and models. If a part is genuinely cheaper somewhere else, that is what gets said out loud on the visit, not left for you to find out later.
Paying for it
Financing through Synchrony
A full replacement does not have to be paid for up front. We offer several financing plans through Synchrony Financial, including same as cash options, and we publish our own Houston-area cost guidelines so you have a real number to plan against before we ever quote your home specifically.
5.0 stars, 312 reviews
What people wrote when nobody asked them to.
James, Chris, Daniel and Nate are the names that keep showing up. Three of the reviews describe the same thing from different nights: a free thermostat diagnosis with a recommendation to buy the part cheaper elsewhere, a Sunday night callout, and a technician who came back the next morning just to check his own work.
“Chris was with us in an hour. Temperature outside was minus 5 degrees C ( 23 degrees F). He talked me through the troubleshooting and diagnostics and identified the thermostat as the problem. Steadfast did not charge for the visit and advised me to purchase a replacement thermostat elsewhere. Really honest, helpful and friendly.”
Michael Duddy, Google
“They showed me several different options to correct my balancing issues between my upstairs/downstairs units. I will be using them for all my future HVAC needs.”
Kirk Aden, Google
Mon-Fri 8am-5pm, after-hours available
Call the shop. James, Chris, Daniel or Nate will pick up the job.
See the full list of what we handle, or go straight to contact.