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Air Tightness / Blower Door Testing & Building Diagnostic Services

Leak Doctor is a leading provider of air tightness and blower door testing services, as well as building diagnostic services for Canadian homebuilders, HVAC contractors, and manufacturers. Our primary mission is to improve the quality of homes through our team of trained technicians and inspectors, who inspect, identify, and recommend corrections for persistent home challenges.


Our air tightness and blower door testing services help to ensure that homes meet or exceed the building code requirements for energy efficiency and ventilation. Our trained technicians use state-of-the-art equipment to identify any air leaks and recommend the necessary corrections to improve the performance of heating and cooling systems, ventilation and ducting systems, and building envelopes. https://www.leakdoctor.ca/netzeroenergyhomes



In addition to air tightness and blower door testing, our building diagnostic services can identify and recommend corrections for a range of persistent home challenges, including unexplained cold air drafts, inconsistent temperatures throughout the home, ventilation and ducting systems, drafts and leaky building envelopes, and excessive moisture-related damage/indoor air quality issues.


Our services and equipment are fully backed by Natural Resources Canada, and we help lead our clients through the entire process from start to finish. We explain all documents and reports in full to help alleviate the frustration that can come along with air tightness and blower door testing.


Leak Doctor’s building diagnostic investigations have been performed in thousands of North American homes and can include building code compliance testing, building program verification and testing (ENERGY STAR®, R-2000, LEED® for Homes, HERS®, Net Zero), residential and large building air-tightness testing and verification, air barrier integrity inspection, air tightness benchmarking, HVAC on-site diagnostics and troubleshooting, air duct testing, IECC insulation compliance inspection, water management inspection, and thermal enclosure inspection/level 3 thermography.


By utilizing our services, builders can improve the energy efficiency of their homes and ensure they meet or exceed the building code requirements. HVAC contractors can identify and correct any issues with heating and cooling systems, ensuring optimal performance and energy efficiency. Manufacturers can improve their products by identifying any issues with ventilation and ducting systems.



In conclusion, Leak Doctor’s services are essential for improving the quality of homes in Canada. Our team of trained technicians and inspectors provide air tightness and blower door testing services, as well as building diagnostic services, to identify any issues with heating and cooling systems, ventilation and ducting systems, and building envelopes. By working with us, home builders, HVAC contractors, and manufacturers can ensure that homes are built to a high standard and meet or exceed the building code requirements for energy efficiency and ventilation.


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