Keep Your Home Comfortable Year-Round

Backed By Over 40 Years Experience In The HVAC Industry - Specializing In Residential & Light Commercial.
Licensed & Insured HVAC Contractor TACLB24067E

A technician holds a colorful HVAC manifold gauge set while servicing outdoor air conditioning units on a rooftop.

Maintain Reliable Heating and Cooling

Delivered with straightforward pricing and steady response times

Mark's AC SERVICE provides heating and cooling services to homeowners in Watauga and the surrounding communities. Whether you're dealing with a system breakdown or planning an upgrade, you're working with an independent contractor who brings more than two decades of licensing and over 40 years of industry knowledge to every job.


You'll know what to expect from the start—no inflated estimates, no unnecessary upselling. Each service is handled with the same attention to detail, whether it's a diagnostic visit, a coil cleaning, or a full system replacement.


Mark's AC SERVICE operates as a locally owned business, which means more affordable rates and a direct connection to the technician who completes your work. Every repair and installation reflects a commitment to consistent workmanship.


Reach out to discuss your heating or cooling needs and schedule a service visit.

A black icon of over-ear headphones.

Speak With Us!

(817) 320-4144

Rely on Independent Service and Honest Pricing
Locally owned and offering more affordable rates than larger companies.

You deserve straightforward advice and dependable work, and that's exactly what we provide.

A HVAC manifold gauge set with red, blue, and yellow hoses connected to an outdoor air conditioning unit.
Black icon of an air conditioner unit with a wrench, a snowflake, and heat waves, representing HVAC repair services.

AC System Repair and Replacement

Fast response times ensure your cooling system is back up and running when you need it most.

A white wall-mounted boiler with a digital display, connected to pipes and a red expansion tank against a green wall.
A black icon of a four-section radiator with heat waves rising above it.

Heating Repair and Furnace Installation

Dependable heating solutions delivered with the consistency that comes from decades of hands-on work.

A technician holding a dual-gauge manifold set to service an outdoor air conditioning unit.
A black icon of a wall-mounted air conditioning unit with a snowflake symbol on the left side.

AC Diagnostics and Coil Cleanings

Thorough inspections and preventive maintenance help extend the life of your equipment.

A white digital thermostat mounted on a smooth, light-grey wall next to a large window.
A circular gauge icon featuring a snowflake on the left and a sun on the right, with a needle pointing to the cold side.

Thermostat Services and Duct Repair

Licensed and insured service that addresses both comfort control and airflow efficiency.

A black gear icon surrounded by symbols for snowflake, flame, water drop, and wind, representing HVAC or climate control.

How Service Unfolds

When you contact Mark's AC SERVICE, you're starting a process built on clarity and responsiveness.

From the initial call to the completed work, you'll understand the scope, the timeline, and the cost before anything begins. Fast response times mean you won't be left waiting when your system goes down.



Each visit includes a thorough assessment, a detailed explanation of what's needed, and a plan that fits your situation. You'll receive upfront information about repairs, replacements, or maintenance options, so you can make informed decisions without pressure.


The services cover a full range of heating and cooling needs:

A black checkmark inside a black-outlined circle on a white background.

AC system repair and replacement that restores comfort quickly and efficiently

A black checkmark inside a black circle.

Heating repair, furnace installation, and furnace repair designed to keep your home warm through colder months

A black checkmark inside a black circle on a white background.

Diagnostics, coil cleanings, and duct repair that address performance issues before they escalate

A black checkmark icon inside a circle.

Thermostat services that improve control and efficiency across North Richland Hills, Keller, and Fort Worth

Get in touch to set up a diagnostic visit or request a repair estimate.

A gray central air conditioning unit sits on a concrete pad next to a brick exterior wall near a grassy lawn and trees.

Independent, Licensed, and Accountable

Mark's AC SERVICE operates without the overhead and pricing structures of large HVAC companies, which translates to more affordable rates for homeowners across Watauga and nearby areas. As an independent contractor, Mark stands behind every job personally, bringing hands-on expertise to each installation and repair.


Licensed and insured, the business reflects a standard of professionalism built over decades of real-world work. You're not dealing with rotating crews or corporate service models—you're working directly with a technician who has spent over 40 years refining his craft and over 20 years operating as a licensed contractor.



Schedule your next HVAC service with a contractor you can count on.

Areas We Serve

Watauga, TX

Keller, TX

North Richland Hills, TX

Fort Worth, TX

Roanoke, TX

Featured Resources

AC System Repair in Watauga, TX: Fast, Affordable Service You Can Trust

By Mark’s AC SERVICE • April 2, 2026
AC system repair in Watauga, TX restores cooling, improves airflow, and extends system life with 40+ years of experience and honest, affordable rates.

Get Your Free Estimate

Contact us today and our team will get back to you quickly.

Contact Us

A gray outdoor heat pump unit mounted on concrete blocks against a dark horizontal-slatted wall.