We proudly serve North Dallas and the surrounding suburbs across the DFW Metroplex including the following: North Dallas, Highland Park, University Park, Richardson, Mesquite, Garland, Wylie, Sachse, Murphy, Plano, Allen, Lucas, Fairview, Frisco, Mckinney, Princeton, Colony, Carrollton, and Little Elm.

At Williams Air, we offer a comprehensive range of HVAC services for both residential and commercial clients, including: Expert diagnostics and repairs for all major HVAC brands Preventative maintenance and tune-ups through our maintenance plan New HVAC installations and system replacements Total home comfort solutions, such as air quality upgrades and smart thermostat installations

Our affordable maintenance plan includes:

• Two tune-ups per year (Spring and Fall)

• 15% off all HVAC repairs

• Priority scheduling for faster service This plan is available for both residential and light commercial customers and helps you prevent costly breakdowns while keeping your system running efficiently year-round.

Absolutely! At Williams Air, we have the expertise and equipment to manage HVAC systems for both single-family homes and light commercial buildings. We offer tailored heating and cooling solutions to meet your unique needs.

If your HVAC system is over 10 years old, running inefficiently, or frequently needing repairs, it might be time for a replacement. Our technicians will conduct a thorough diagnostic assessment and give you honest recommendations. If a new system is the most cost-effective solution, we'll present options that fit your needs and budget, and you decide how to proceed.

Williams Air is a local, family-owned business, not a corporate franchise. When you call us, you’re speaking to real people from your community, not a 1-800 number. With over 40 years of combined HVAC experience, our reputation is built on integrity, transparency, and quality workmanship. We treat every customer like a neighbor because that’s exactly who you are.

Our certified technicians service and install all major HVAC brands, including Carrier, Trane, Lennox, Rheem, Goodman, and more. No matter what system you have, we have the expertise to repair, maintain, or replace it efficiently.

Regular maintenance extends the life of your HVAC system, keeps it running efficiently, lowers your energy bills, and helps prevent unexpected breakdowns. Our tune-ups ensure your system performs at its best through every season.

Yes. We know HVAC breakdowns don’t wait for convenient times. That’s why we offer priority scheduling and quick response times for urgent service calls especially, for our maintenance plan members.

To book a service appointment with Williams Air, simply call us at 972-279-2665 or 972-279-4328, or fill out our contact form. Our friendly, local team will promptly confirm your appointment and ensure your home or business is comfortable again.