Indoor Air Quality Services in the Greater Austin Area
Breathe easier with professional indoor air quality services for your home. Since 1977, McCullough Heating & Air Conditioning has helped Central Texas families with filtration, purification, humidity control, and duct solutions. We back our work with transparent pricing and a 100% satisfaction guarantee, and we’re proud of our 4.8 rating from 3,091 reviews. Serving the Greater Austin Area, including Austin, Round Rock, and Cedar Park. Schedule an IAQ assessment today and ask about our free AprilAire high performance filtration system with qualifying system replacement.
Each image is a real worksite photo, reflecting the quality and dedication in every project.
Why Choose Us
What Our Customers Say
"Vinny has been the only one who was able to fix the problem and we now have great air quality."
"Humidity control and centralized air filter/purifier means no more changing of multiple ceiling filters but instead one centralized filter in the attic every 6 months."
"Shawn did a great job getting our ductwork repaired and balanced and came back to make sure it was right."
Answers to Common Questions
View All FAQsHow much does professional air duct cleaning service cost?
Professional air duct cleaning service cost depends on your home and duct condition; McCullough Heating & Air Conditioning confirms pricing after a quick on-site inspection. The biggest driver is the size of the system and how many supply and return vents you have. We routinely service homes across the Austin area, so bids reflect real conditions in Central Texas dust and pollen. A technician will often open a couple of vents and the plenum (the main air box) to check debris, sealing, and leakage before quoting. If ducts are intact and only lightly dusty, cleaning can wait; after remodeling or with visible buildup, plan to clean and consider duct sealing for longer-lasting results.
Your estimate typically changes with:
- Duct length and the number of registers/returns
- Level of debris or microbial growth requiring agitation or sanitizing
- Access issues like attic height or tight chases
- Add-on services such as duct sealing, coil cleaning, or high-MERV filter upgrades
Ask for before/after photos from the supply trunks and main plenum to verify results.
Updated: 2026-03-13
Need help in Barton Creek, TX? Call (512) 588-5937 or book online.
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Helpful Tips & Maintenance Advice
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Where We Work
What areas do you serve for indoor air quality services?
We serve the Greater Austin Area, including Austin, Round Rock, and Cedar Park. You’ll find the complete list of cities we cover below.