Serna Services repairs all makes and models of A/C units and HVAC systems.

We Keep You Comfortable In All Conditions

With Serna Services, you don't have to endure the cold in your home or office.

For over 13 years, we have provided the most attentive HVAC services to both residential and commercial customers in Limestone County. We can help you take the chill off a winter night with a dependable, quality heating system.

We work with you to ensure your home or business is the most comfortable and energy-efficient possible. We service all makes and models of air conditioners, furnaces, heat pumps, and more.

High-efficiency furnaces and heat pumps allow you to keep the air in your home or business warmer without seeing your energy bills skyrocket.

If you are building a new home, let us custom design an HVAC system that features the most up-to-date units and controls. We provide heat load calculations for all new construction applications.

One of our experienced technicians replaces an air filter in a customer's HVAC unit

Preventive Maintenance

Serna Services offers service contracts that make regular maintenance easy. Don’t let small issues turn into big problems. We will catch and fix them quickly, saving you money and keeping your system running efficiently and cost effectively for years to come.

Nothing is worse for an HVAC system than neglect. Contact us today to set up a bi-annual service rotation where we come out and thoroughly clean your HVAC and prepare it for the next season.

24 Hour Emergency Service

No matter the time of day, Serna Services is on-call, ready to serve your HVAC needs.

If your system malfunctions, your family could be in danger from the severe Texas heat or cold. Call us immediately, so we can expedite your repair and ensure your family’s comfort and safety.

Contact us today at (254) 562-7000 to speak with one of our customer care consultants!

A technician makes adjustments on an HVAC unit