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INDOOR AIR QUALITY LEWISVILLE, TX

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Whole-Home Air Purifiers, UV Lights, Duct Cleaning, & Air Quality Assessments Backed by a Lifetime Parts Warranty

At Koala-T Heating & Air, we've installed more than 4,000 indoor air quality systems across Lewisville and the surrounding DFW communities. Every product we install comes with a lifetime parts warranty, designed to last for the lifetime of your home, backed by industry-leading certifications and 50+ positive reviews. Choose us for a professional air quality assessment and improve your indoor comfort.

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4,000+ IAQ Systems Installed

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Lifetime Parts Warranty on ALL IAQ Products

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Licensed (TACLA00153892E)

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BBB Accredited

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Amana Advantage Specialist

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OUR 4 INDOOR AIR QUALITY SERVICES FOR LEWISVILLE HOMES

The Environmental Protection Agency reports that indoor air can be two to five times more polluted than outdoor air, and in North Texas, the outdoor air isn't doing us any favors either! Denton County sits inside the 9-county Dallas-Fort Worth ozone nonattainment zone. In 2024, our region recorded 43 Ozone Action Day alerts. The ozone season runs from March through November, and every particle of pollen, dust, and combustion byproduct out there eventually ends up inside your home.

If you're dealing with poor indoor air quality, we can help you with the following IAQ services:

UV LIGHT INSTALLATION

Your HVAC system's evaporator coil is one of the most common places for bacteria, and biofilm to grow because it stays damp for much of the North Texas cooling season. We install UV-C lights to help control microbial growth by continuously sterilizing the surface where contamination forms. ASHRAE and the EPA recognize UV-C as an effective method for coil treatment.

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COIL-SANITIZING UV-C LIGHTS

Mounted above the evaporator coil and use 253.7 nm UV-C to keep the coil clean and reduce biofilm, odors, and bacterial growth risk, with bulbs typically replaced every 12–24 months.

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WHOLE-HOME IN-DUCT UV AIR TREATMENT SYSTEMS

Installed in ductwork to reduce bacteria, viruses, and odors as air passes through. We install Premier One Products systems such as the MUV7-50DR.

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Every UV system we install includes a lifetime parts warranty on the housing, cell, and ballast, while bulb replacements remain the homeowner's responsibility.

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ELECTRONIC FILTER & WHOLE-HOME AIR PURIFIER INSTALLATION

We install electronic filtration and whole-home air purification systems such as Aprilaire and Trane CleanEffects, which upgrade your HVAC beyond standard 1-inch filters to capture fine particles like smoke, bacteria, and PM2.5 that basic filters often miss. These offer MERV 13-level performance recommended by the EPA and ASHRAE for residential indoor air quality.

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BLOWER WHEEL CLEANING

Just 1/10th of an inch of dust on your blower wheel can reduce HVAC airflow by 20% or more. Most HVAC companies never look at the blower wheel during a tune-up, but we're different. We offer professional blower wheel cleaning for HVAC systems in North Texas homes, removing built-up dust mites (which thrive in humid environments), pet hair, and debris that can restrict airflow and reduce efficiency, using a careful process that involves removing the blower assembly, cleaning and balancing the wheel, and testing performance to guarantee the unit can operate smoothly and efficiently.

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EVAPORATOR COIL CLEANING

Our professional evaporator coil cleaning for Lewisville HVAC systems focuses on removing biofilm, dust, and debris that build up on the coil and reduce efficiency. We use non-corrosive foaming cleaners applied safely to restore heat transfer and improve airflow, helping prevent higher-than-necessary energy use and coil-related faults.

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RELATED SERVICES

Indoor air quality is one piece of the puzzle. Here are the related services that often go hand-in-hand with our primary IAQ services:

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AIR QUALITY ASSESSMENT

Formal indoor air quality testing with particulate, humidity, and VOC measurement. Best for families with asthma, allergies, or unexplained symptoms. Diagnostic-first approach before any product recommendation.

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DUCT CLEANING

NADCA-standard duct cleaning to remove accumulated debris, dust, and biological growth from your entire duct system. Often recommended alongside blower wheel cleaning and coil cleaning for full-system results.

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AC MAINTENANCE & TUNE-UPS

Spring AC tune-ups include evaporator coil inspection and blower wheel check. The smart way to catch indoor air quality issues before they become full-system problems.

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JOEY CLUB™ MEMBERSHIP

Annual maintenance membership with two seasonal tune-ups, 15% off repairs, priority scheduling, and included indoor air quality inspections at every visit. Starting at $160/year.

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EMERGENCY SERVICE AVAILABLE  24/7 

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THE KOALA-T DIFFERENCE: LIFETIME PARTS WARRANTY

The Only Lifetime Parts Warranty on IAQ Products in North DFW

No other HVAC company we've found in the Lewisville or greater North Texas area offers the warranty that we offer on indoor air quality products. Most warranties cover parts for 1, 3, or 5 years, but we offer lifetime coverage for as long as you own your home.

We only install IAQ products we've tested, trust, and service ourselves, which is why we feel confident offering such extensive coverage.

Alongside this unbeatable warranty, our indoor air quality work is backed by four guarantees:

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NO-SWEAT PRICING™

The price we quote is the price you pay

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COOL IN 24 OR IT'S ON US™

System running within 24 hours of our first visit, or we waive the service fee

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KOALA-FIED TECHNICIANS™

Background-checked, licensed, in uniform, on time

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THE KOALA-T SEAL™

If we can't solve it, you don't pay

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INDOOR AIR QUALITY SERVICES ACROSS LEWISVILLE AND THE NORTH DFW SUBURBS

Koala-T Heating & Air is based in Lewisville, TX, right off Highway 121. We're here to improve indoor air quality across Denton County and the northern DFW suburbs. If you're within about 30 minutes of Lewisville, we can likely help. Ask us about our assessment methods and technology — we're happy to help!

Our primary service areas for our air conditioning services include:

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Lewisville, TX

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Flower Mound, TX

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Highland Village, TX

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The Colony, TX

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Carrollton, TX

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Coppell, TX

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Corinth & Lake Dallas, TX

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Castle Hills

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INDOOR AIR QUALITY SERVICES FAQ

We don’t believe in high-pressure sales or artificial timelines. Here is the straight truth about how we clean, what it costs, and what your home actually needs based on EPA guidelines.

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STILL HAVE QUESTIONS?

If you don't see your specific concern addressed below, our team is here to help. Contact us directly to learn more about our lifetime parts warranty and custom solutions for your Lewisville home.

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CONTACT US FOR PROFESSIONAL AIR QUALITY SOLUTIONS IN LEWISVILLE

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Investing in our IAQ services can help you not only improve your own well-being, but also enhance your property value and appeal. Whether you're dealing with a musty smell from your HVAC's vents, chronic allergies or asthma attacks that flare up indoors, a coil that needs cleaning, or anything else related to indoor air pollution, Koala-T Heating & Air is ready. Schedule a free in-home IAQ assessment, and we'll walk through your system with you and give you honest options based on our findings.

Call us to speak to Nathan, our founder, or book your service online using the form below.

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