Total Home Solutions provides large building and commercial airtightness testing services for Part 3 construction projects, including multi-unit residential and commercial buildings.
These services are delivered in collaboration with our parent company, Integrity Building Performance, allowing us to offer high-capacity testing equipment, specialized expertise, and proven methodologies for large and complex buildings.
Large building airtightness testing evaluates uncontrolled air leakage through the building envelope using calibrated high-capacity fan systems. Unlike residential blower door testing, Part 3 testing assesses the entire structure as a single pressure system, providing accurate performance data for large and complex buildings.
Results are reported in accordance with applicable standards and code requirements, commonly expressed as air leakage rates such as L/s·m² or ACH@75 Pa.
Airtightness testing may be required or requested for:
Testing is typically performed near project completion but can also be planned earlier to support envelope quality control.
✔ Whole-building airtightness testing for large and complex structures
✔ High-capacity fan systems suitable for towers and large floor plates
✔ Coordination with builders, consultants, and site teams
✔ Clear documentation for AHJs, engineers, and energy advisors
✔ Support for new construction and major retrofits
All testing is coordinated through Total Home Solutions, with specialized testing services provided by Integrity Building Performance.
Effective airtightness control helps reduce:
Proper testing supports durability, performance, and long-term building value.
If your project requires Part 3 airtightness testing or you are considering a performance-based compliance path contact Total Home Solutions early to ensure smooth coordination and accurate testing.
Contact us to discuss your project!
