Southern Utah residents know that having a reliable cooling system is essential for getting through the summer. Thompson Plumbing, Heating, Cooling & Electrical is your source for reliable cooling services, from maintenance to repair to replacement. Our family-owned and -operated company has been installing, replacing, maintaining, and repairing air conditioners since 1996.

Systems We Service
We’re proud to provide services on various cooling systems. Our team is knowledgeable in providing repairs, replacement, and maintenance for the most common types of AC systems in Southern Utah, including:
- Central air conditioners
- Heat pumps
- Ductless mini-splits
To schedule AC services in St. George, contact us today.
AC Repair
There’s nothing worse than waking up to a broken air conditioner or heat pump. We offer AC repair, including emergency and same-day services, so you aren’t left sweating in a sweltering house. Our technicians have years of experience, so you can trust us to diagnose the problem quickly and accurately. We also arrive in fully stocked trucks to increase the chances of fixing your AC in one visit.
AC Installation & Replacement
Whether you need your existing AC system replaced or get a brand-new unit installed, our AC installation and replacement services are here to do the job. We care about our customers’ needs, so we’ll never call a job complete until you’re thrilled with the results.
Our team will work with you to determine the right equipment for your Washington County home, whether a central air conditioner, a heat pump, or a ductless mini-split. Then, we’ll size your unit carefully to ensure it meets your needs. Finally, we’ll expertly install the equipment to maximize efficiency and longevity.
AC Maintenance
Reduce the chance of a midseason breakdown and lower your energy bills with routine AC maintenance. We recommend scheduling maintenance once a year, at the end of winter, before you turn on your system for the first time. Inspections from Thompson Plumbing, Heating, Cooling & Electrical include:
- Check and calibrate the thermostat for accurate temperature control.
- Inspect and tighten all electrical connections.
- Lubricate moving parts to reduce wear.
- Test system controls for proper startup and shutdown cycles.
- Replace the air filter to maintain airflow.
- Clean the evaporator and condenser coils.
- Measure the refrigerant charge and inspect for leaks.
- Examine and clean crucial components.
- Run a system test to evaluate cooling performance and airflow.
Such checks are designed to improve reliability and help your cooling system run at its peak. Join our Home Maintenance Membership, where you can benefit from maintenance, priority service scheduling, discounts, and more to prolong the life of your air conditioner, heat pump, or ductless mini-split.
Choose Thompson Plumbing for AC Services in St. George
An air conditioner that runs properly makes you more comfortable, improves indoor air quality, and gives you peace of mind. We offer special offers and financing options to reduce stress in your HVAC services. Let us check all the boxes while drawing on three decades of experience as a locally owned and operated HVAC company in Washington County.
Call us today to schedule dependable AC services. We’ll help you stay cool all summer long!