Duct Leakage Testing in San Marcos, TX
Need help with a Duct Leakage Test in San Marcos, TX? Our team of certified professionals delivers accurate duct leakage testing to assist homeowners, builders, and contractors in meeting Texas energy code regulations.
According to the 2018 International Energy Conservation Code (IECC), newly constructed residential dwellings must undergo duct leakage testing whenever any portion of the HVAC system, such as the air handler or ductwork, is installed beyond the conditioned space. If your home or building requires professional compliance testing, we are available with reliable and cost-effective testing services in San Marcos, TX, and neighboring locations.
What Is a Duct Leakage Test?
A duct leakage test examines the air loss occurring in the HVAC duct system. When ducts leak, the consequences may include:
- Wasted energy leading to inflated utility expenses.
- Temperature fluctuations that make maintaining indoor comfort a challenge.
- Decreased system performance, causing HVAC units to overwork.
- Declining air quality caused by unfiltered contaminants seeping into the ducts.
A duct blower system is used in duct leakage testing to pressurize the ductwork and measure how much air is escaping. If too much air is leaking, properly sealing the ducts can lower energy waste and help your home pass necessary code requirements.


Do You Need a Duct Leakage Test in San Marcos, TX?
You may need a duct leakage test if:
- You are building a new home that requires energy code compliance.
- Your HVAC system’s ductwork or air handler is located outside the conditioned space (e.g., in an attic, crawl space, or garage).
- You are experiencing high energy costs and suspect leaky ducts
- Your home has uneven heating and cooling issues.
- You want to ensure your HVAC system is operating efficiently.
When duct leakage testing is needed for your home or project in San Marcos, TX, we deliver quick scheduling and same-day results to support your progress.

Texas Energy Code Requirements for Duct Leakage
Under the 2018 IECC, homes in Texas must meet specific duct leakage limits:
- If the air handler or ducts are outside the thermal envelope, total duct leakage must be 4 CFM per 100 sq. ft. or lower.
- If the entire duct system is inside the conditioned space, a duct leakage test is not required.
Failing to meet these requirements can delay your project. Our expert technicians ensure quick and accurate testing to help you pass your inspection.

Our Duct Leakage Test Process
Our certified duct leakage testing process includes:
Step 1: System Preparation
- All registers and vents are sealed.
- The duct blaster fan is connected to the air handler or a return vent.
Step 2: Pressurizing the System
- The fan pressurizes the duct system to detect leaks.
- A digital pressure gauge measures total air loss.
Step 3: Analyzing the Results
- We compare the leakage rate to Texas energy code limits.
- If the system passes, we provide a certified report for compliance.
- If the system fails, we offer recommendations for sealing improvements.
We ensure your project stays on schedule by providing same-day results and guidance on how to meet duct leakage requirements.
Why Choose Us for Your Duct Leakage Test in San Marcos, TX?
When you choose us for your Duct Leakage Test in San Marcos, TX, you benefit from:
- Certified Professionals – We provide accurate, reliable, and code-compliant testing.
- Fast Scheduling – Get your test done quickly to avoid project delays.
- Same-Day Reports – Receive your results immediately.
- Affordable Pricing – Competitive rates with no hidden fees.
- Expert Guidance – If your home doesn’t pass, we help you find solutions.

Book Your Duct Leakage Test in San Marcos, TX Today
Need a duct leakage test in San Marcos, TX? We make the process fast and hassle-free. Call us today at (888) 496-4661 to schedule your test or book online!
Duct Leakage Testing Providers in San Marcos, TX
Below is a list of energy rater who provide duct leakage testing in San Marcos, Texas:
To be added to this list please email [email protected]