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Blower Door Testing
Measures how much air moves through the home’s exterior shell under controlled pressure.
Energy testing made simple
Blower door testing for Cedar City & Southern Utah.
Certified blower door and duct leakage testing for builders, HVAC contractors, and new homes across Cedar City, Iron County, and surrounding Southern Utah communities.
New-construction energy-code testing · Final-inspection documentation
Building envelope diagnostic
PRESSURE DIFFERENCE
−50 Pa
STANDARDIZED TEST CONDITIONTesting system readyCEDAR · UT
Clear help at closeout
Need an energy test before final inspection?
New residential projects may require building-envelope or duct-system testing before final approval. We help builders and HVAC contractors complete the correct test, understand the result, and receive clear documentation for project closeout.
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Duct Leakage Testing
Checks how much conditioned air may escape from the HVAC duct system.
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Clear Test Results
Get understandable results and organized test documentation to help keep the project moving.
A straightforward process01 02 03
Testing shouldn’t slow down your build.
Call to Schedule
Tell us the project address, test needed, approximate size, and preferred timing.
We Test
We perform the appropriate diagnostic test onsite using specialized equipment.
Get Your Results
Receive clear results and documentation so you know what comes next.
Testing services
The right test for the project.
For new construction, energy-code documentation, HVAC verification, or targeted leakage diagnosis.
Residential Blower Door Testing
Measures overall building-envelope air leakage at a standardized pressure difference.
Duct Leakage Testing
Measures leakage from the HVAC duct system to support verification and closeout.
Diagnostic Testing & Retesting
Practical support when a project does not initially pass and needs correction followed by verification.
Repeat-project ready
Built for builders, HVAC contractors & new construction.
You shouldn’t have to become a building-science expert just to close out a house. The testing process should be clear, responsive, and easy to coordinate.
Call About Builder PricingStraightforward scheduling
Clear requirements
Understandable results
Fast communication
Retesting when needed
Organized documentation
Project-specific quotes
Get the right quote for your project.
Pricing can vary based on the test needed, home size, location, project stage, retesting, and whether you have multiple homes or units.
Blower Door & Duct Leakage Testing
Call for a quote.
A quick conversation is the easiest way to confirm the test, timing, and pricing for your project.
Call 435-236-0563Local service area
Serving Cedar City & Southern Utah.
We serve projects in Cedar City, Enoch, Iron County, and surrounding Southern Utah communities. Outside the immediate area? Send the project address and we’ll confirm availability.
Cedar CityEnochIron CountySouthern Utah
Frequently asked questions
Building science, in plain English.
What is a blower door test?
A blower door test uses a calibrated fan installed in an exterior doorway to create a controlled pressure difference. The equipment measures the airflow needed to hold that pressure, which shows how airtight or leaky the building envelope is.
What does ACH50 mean?
ACH50 means air changes per hour at a pressure difference of 50 Pascals. It expresses how many times the home’s indoor air volume would be replaced in one hour under the standardized test condition.
What happens if the house doesn’t pass?
A failed result is information, not the end of the project. We can help clarify the result, support leakage diagnosis, and return for verification after corrections are completed.
When should I schedule testing?
Schedule when the building envelope is complete and the home can be prepared for testing, but early enough that there is still time to correct problems before the relevant inspection or project deadline.
Do you perform duct leakage testing?
Yes. Duct leakage testing measures air escaping from the HVAC duct system. Tell us the project stage and what documentation has been requested so we can confirm the appropriate test.
Talk through your project
Ready to get your test handled?
Call directly to discuss the project, confirm which test you need, get a quote, and coordinate a testing date. If possible, have the project address and approximate conditioned square footage ready.
Call Cedar Blower Door Testing(435) 236-0563Call Now
Tap the button from your phone to start the call.