“Just had our heating system serviced in preparation for cooler weathers. Also had our water heaters flushed. Excellent work. The techs were knowledgeable, friendly, courteous, and thorough. Service covered under our maintenance agreement so service to four HVAC units, two tankless propane water heaters, and one electric tank water heater cost me nothing!”
Ductwork that keeps every room comfortable
Leaky or poorly insulated ducts in a hot Texas attic waste energy and cause hot and cold spots. We seal, insulate, repair and design them.
- Duct sealing and repair
- Insulation for hot attics
- New duct design for even comfort

Highland Lakes & North Austin
Why hire a licensed heating and air contractor for ductwork?

- Family-owned since 1997Serving our Highland Lakes and North Austin neighbors for 29 years.
- Upfront pricingYou approve the price before any work begins.
- Licensed and insuredTexas HVAC license TACLA00108111E.
- Lifetime labor guaranteeIf our work fails, we come back and fix it free.
What customers say about Ductwork
Ductwork questions we hear most
Find answers to common plumbing, heating and air conditioning questions from our expert team.
Common signs of leaky ductwork include rooms that are consistently too hot or too cold, higher-than-expected energy bills, excessive dust in your home, and your heating and air system running longer than it should. In Texas, where most ductwork runs through unconditioned attic space, leaks are extremely common and can waste 20-30% of your conditioned air. We use diagnostic tools to test your ducts and pinpoint exactly where the leaks are.
Texas attic temperatures can easily reach 140°F or more in summer. When your cold, conditioned air travels through uninsulated or poorly insulated ducts in that extreme heat, it can warm up by 10-20 degrees before it even reaches your rooms. This forces your AC to work much harder and drives up your energy bills. Properly insulated ducts maintain the temperature of the air and dramatically improve system efficiency.
Absolutely. Leaky ducts in your attic or crawl space can pull in dust, insulation fibers, mold spores, and other contaminants and distribute them throughout your home. Poorly sealed duct connections also allow humid outside air into the system, which can promote mold growth inside the ducts. Sealing and cleaning your ductwork is one of the most effective ways to improve the air quality in your home.
Most ductwork is designed to last 15-25 years, but in Texas attics where temperatures are extreme, flex duct can deteriorate faster. The connections, tape, and insulation break down over time, leading to leaks and reduced efficiency. If your ductwork is over 15 years old, we recommend a professional inspection to assess its condition and identify any areas that need repair or replacement.
Yes, we design and install complete duct systems for home additions, renovations, and new construction. Proper duct design is critical to system performance—it ensures the right amount of airflow reaches every room. We calculate the correct duct sizes, plan efficient layouts, and use quality materials to deliver a system that keeps your home comfortable and your energy bills low.
Have a question that's not listed here? Give us a call and we'll be happy to help.
Members save 15% on ductwork
One membership covers plumbing, heating and air. It includes spring and fall heating and air tune-ups, an annual whole-home inspection, and a 2-year repair warranty.
Join Brandenburg One →- 15% off service, 5% off installs
- 2-year repair warranty
- 2-hour arrival window
Our other HVAC services
We offer a full range of heating and air conditioning services to keep your home comfortable year-round.
Proudly serving the Highland Lakes & North Austin
Ductwork near you — find your community:
A licensed pro you can put a face to

Josh Chachere
Certified HVAC Technician

Kyle Shafer
Registered HVAC Technician

Alex Zharov
Certified HVAC Technician
Licensed & regulated in Texas
- Master Plumber (RMP)
- Lucas Brandenburg, RMP-42793
- LP Gas
- 10829
- HVAC (TDLR)
- TACLA00108111E
Need ductwork service?
Someone answers in about 30 seconds, day or night, and you get the price before any work starts.
- Licensed & insured
- Upfront flat-rate pricing
- Lifetime labor guarantee