Duct Leakage Testing (Duct Blasting) in Greenville–Spartanburg

Leaky ducts can cost you money, energy, and comfort. Our duct leakage testing (duct blasting) service accurately measures your system’s air loss, helping you meet code requirements and improve efficiency.

Is Your HVAC System Leaking Money?

If your home or building has leaky ductwork, you’re probably losing more than just air — you’re losing comfort, energy efficiency, and money. Our professional duct leakage testing (also called duct blasting) measures how much air escapes from your duct system and pinpoints problem areas.

Whether you’re a homeowner trying to improve airflow or a builder needing to pass energy code requirements, Collins Mechanical is your trusted partner for accurate, affordable duct testing.

What Is Duct Leakage Testing?

Duct leakage testing uses pressurization equipment to measure how much air is escaping from your HVAC system’s ductwork. A fan is connected to the system, and the air pressure is monitored to detect leaks.

This process is required by code for most new homes in South Carolina — but even in existing homes, it’s one of the most effective ways to improve efficiency and comfort.

Who Needs a Duct Leakage Test?

Builders & Contractors:

• Need to meet state energy codes
• Require certified third-party testing
• Want to ensure homes are tight, efficient, and up to standard

Homeowners:

• Experiencing high energy bills
• Uneven room temperatures
• Poor airflow from vents
• Want to boost system efficiency

How the Process Works

1. We seal off registers and connect a calibrated fan to your HVAC system.
2. We pressurize the duct system and monitor how much air leaks out.
3. You receive a detailed report with leakage measurements, and we walk you through the results.
4. If needed, we’ll recommend next steps to improve your system’s performance.

Testing takes less than an hour in most homes and provides fast, actionable insights.

Duct Blasting Pricing

• Starts at $275 for a standard 1,500–2,000 sq. ft. home with one HVAC unit
• Average cost is $325 depending on complexity
• Builder discounts available for volume testing

Want to combine duct testing with a blower door test? Ask about our discounted bundle rate!

Why Choose Collins Mechanical?

✔ Veteran-owned & operated
✔ Code-compliant, certified testing
✔ Serving Greater Greenville–Spartanburg
✔ Fast turnaround on results
✔ Trusted by homeowners and builders across Upstate SC

We’re more than just an HVAC company — we’re your local efficiency partner.

Serving the Upstate South Carolina Region

We proudly provide duct testing in:
Greenville, Spartanburg, Greer, Taylors, Simpsonville, Fountain Inn, Boiling Springs, Duncan, Lyman, Five Forks, and surrounding areas.