Failing Duct Tests? DALT Helps Commercial Contractors Stay Compliant

When it comes to large-scale commercial HVAC installations, duct performance isn’t an option; it’s a dealbreaker. Contractors who skip or underestimate duct air leakage testing (DALT) risk failed inspections, costly delays, and frustrated clients.

DALT is a critical service that evaluates how well ductwork holds air under pressure. During the test, technicians pressurize the duct system to its design limit and measure how much air escapes. The results must meet strict leakage thresholds based on duct size. If the system fails, the contractor is responsible for locating and sealing the leaks before retesting.

This process isn’t optional. Many commercial projects require DALT to meet building codes and engineering specifications. Failing the test can halt progress, trigger rework, and damage reputations.

Beyond compliance, duct sealing has a direct impact on system performance. Properly sealed ducts can increase airflow, improving energy efficiency and comfort while reducing operational costs.

DALT is a scalable service that applies across the board—from new construction to retrofits. For contractors, it’s not just a box to check; it’s a safeguard against future problems and a way to deliver quality assurance to clients.

Ignoring duct leakage testing can cost you time, money, and trust. Investing in DALT ensures your commercial HVAC systems perform as designed, and pass inspection the first time.

Ready to Improve Your System?

Whether you're working on a new commercial build or retrofitting an existing system, DALT is a smart investment in performance and compliance. Our team offers duct leakage testing and sealing services across the board, tailored to meet your project’s specific needs.

Fill out our contact form today to schedule a consultation or request a quote. We’ll get back to you promptly with the next steps.