When your air conditioner or heater breaks down, you need fast, reliable HVAC service you can count on. At 1st Response, we specialize in diagnosing and repairing all makes and models of heating and cooling systems across Keller, Southlake, and the greater DFW area. Whether it’s an emergency AC repair, unusual noises, weak airflow, or a system that won’t turn on, our experienced technicians are ready to respond. We treat every call like an urgent response—because your comfort can’t wait.

Upgrading your HVAC system? Our expert team at 1st Response provides professional air conditioning and heating installation throughout North Texas. We offer energy-efficient solutions tailored to your home’s size, layout, and budget. From complete system replacements to new home installations, we ensure every job is done right the first time. Serving Keller, Roanoke, Haslet, and surrounding communities, we’re the go-to crew when comfort needs a fresh start.

Prevent costly repairs and extend the life of your HVAC system with our routine maintenance services. At 1st Response, we provide seasonal tune-ups, safety checks, and system cleanings to keep your AC and heating units running at peak performance. Regular maintenance not only saves energy—it helps catch small issues before they become expensive problems. Serving homeowners throughout DFW, we’re your trusted partner for long-term HVAC health.