Residential & Commercial Services

From homes to businesses, Quality Air Service is committed to offering exceptional heating and cooling services to customers across Washington, St. George, and Southern Utah. Our knowledgeable and experienced team can handle everything from air conditioning and furnace installation, to repairs, maintenance, and more.

What We Offer

We use quality HVAC products and are trained to complete every job quickly and efficiently. Whether it’s routine maintenance or an emergency, we’re always dedicated to meeting your needs.

Installation & Repair

Is your furnace or air conditioning having issues? We provide repairs, replacements, and installations of a wide variety of heating and air conditioning systems.

HVAC Maintenance

Make sure your current system is operating smoothly and efficiently with our trusted maintenance services. We can also help you find ways to reduce your energy bill through a thorough cost-benefit analysis.

Air Quality Systems

Never underestimate the impact your home’s air quality has on your health. We can help you find a reliable air quality system that fits your needs.

Filter Service

Having a hard time installing that hard to reach filter? Let us know what kind of filter you need and we’ll be happy to swing by and install it for you.


Q: How often should my HVAC unit be serviced?

A: We recommend preventative maintenance for your HVAC system to be done twice a year. The spring preventative maintenance prepares your A/C for the warmer weather and then a fall tune-up readies your furnace for the cooler temperatures. These multi-point tune-ups provided by our experts allow an opportunity to inspect, tighten electrical connections, measure current & voltage, inspect drains, ensure proper system cycles, clean air coils; check refrigerant levels, clean and adjust the blower compartment. Our multi-point inspections allow early detection of broken or malfunctioning parts.  

Regular maintenance of your heating and cooling equipment helps the equipment run as efficiently as possible and also lengthens the life of your system.  Even the manufacturers of heating and cooling equipment recommend that annual maintenance and cleaning extend the life of your system.  We believe that regular maintenance does exactly that.

Q: What type of filter should I be using?

A: We recommend a “Mid–Grade Pleated Filter.”  These filters are rated between MERV 5 and 8. They trap a majority of airborne particles. The surface is a V-shaped chevron pattern.

Q: How often should my AC filters be changed?

A: There are many factors that affect the frequency of filter changes from the type of filter; usage, weather, and allergens to name a few. When using a mid-grade pleated filter, we recommend changing AC filters every 90 days or following the filter manufacture recommendation.

Q: What temperature should I set my thermostat?

A: There is no industry standard for temperature setting. A comfortable temperature is up to the individual. We recommend setting the temperature for whatever is comfortable.

Q: Is there anything I should check prior to calling for service?

A: In a situation where your HVAC is not working at all, it’s always recommended that you check the batteries in the thermostat and the electrical breaker.

Interested in our HVAC services? Contact us today!