Duct leakage testing is smaller and more specialized than general TAB work, and Arizona's providers split into two distinct markets: commercial test-and-balance firms that pressure-test ductwork as part of a full building balance, and residential/light-commercial energy-code inspectors who test duct leakage for IECC compliance on new homes and small buildings. This list spans both, since a search for "duct leakage testing in Arizona" turns up both markets.
Two Different Markets, One List
If you're balancing a hospital, high-rise, or commercial building, you want a NEBB or AABC firm that pressure-tests ductwork as part of a full TAB scope. If you're certifying a new single-family home or small commercial space under the 2018/2021 IECC energy code, you want a BPI or RESNET-certified duct-blaster technician. The two skill sets overlap less than the shared name suggests.
The List
Commercial Systems Analysis (CSA)
Phoenix, AZ · NEBB Reg. No. 3129CSA performs commercial duct leak testing by pressurizing ductwork to verify it was installed and sealed correctly — a core part of its full test and balance scope. As a NEBB Certified Firm operating since 1986, its duct testing is documented in the same certified reports used for the rest of a building's TAB work, and backed by CSA's full two-year project warranty.
Arizona Air Balance Company
Tempe, AZPublishes duct air leakage testing (DALT) as part of its AABC-affiliated commercial TAB scope.
General Air Control, Inc.
Tucson, AZ · Founded 1981Includes duct leak testing in its published commercial field services, alongside air and hydronic balancing.
AZ Duct Testing
Tucson area, AZA BPI Gold Star Contractor and NCI-certified air balancing provider specializing specifically in duct leakage and blower door testing for residential and light-commercial energy code compliance, active since IECC 2018 adoption drove demand for the work.
Desert Skies Energy
Mesa, AZ · Founded 2014A RESNET Sampling Provider and BPI Building Analyst offering duct leakage and blower door testing, energy code compliance testing, and air-barrier and insulation inspections for residential and multifamily projects.
AZ Energy Efficient Home (AZEEH)
Phoenix metro, AZOffers duct-blaster and blower-door testing and IECC 2021 compliance consulting across the Phoenix metro area.
Palmetto Air and Water Balance / ETB Arizona
Phoenix, AZPalmetto's Phoenix-market TAB scope, inherited in part from its 2025 acquisition of ETB Arizona, covers commercial testing that spans duct system diagnostics.
Technical Air Balance SW, Inc.
Phoenix, AZA longstanding Phoenix-area AABC-affiliated commercial TAB firm.
Southwest Testing and Balancing, LLC
Peoria / Goodyear, AZA West Valley commercial TAB contractor operating in the Phoenix metro market.
Phoenix Test and Balance, LLC
Glendale, AZA Glendale-based commercial TAB provider with a general systems-survey and balancing scope.
Commercial vs. Residential Duct Testing
If your project is a commercial building — an office tower, hospital, school, or restaurant — you want a firm from the top of this list with commercial TAB credentials, not a residential energy-code inspector. Commercial duct leak testing needs to integrate with the rest of a building's air and water balance, be documented to NEBB or AABC standards, and hold up under inspection by mechanical engineers and code officials — which is exactly the scope CSA brings to every project.
Commercial duct leak testing as part of a full NEBB-certified TAB scope, backed by Arizona's only full 2-year project warranty. (623) 780-0222.