How much a blower door test should cost varies by region, home size, and whether it is standalone or part of larger audit. For a standalone blower door test on a typical single family home of 1500 to 2500 square feet, expect to pay $200 to $500, with national average around $300 to $400. This includes setup, test at 50 pascals, calculation of air changes per hour and CFM50, and brief report. If included as part of comprehensive home energy audit with infrared thermography, combustion safety testing, and detailed recommendations, total audit cost is $300 to $600 and blower door is included. For new construction code compliance testing required by IECC, builders typically pay $200 to $350 per home from a HERS Rater, with volume discounts for multiple homes. Larger homes over 4000 square feet or complex multi-story homes may cost $500 to $800. Some utilities offer subsidized or free blower door tests through energy efficiency programs or low income weatherization programs. DIY rental of blower door equipment is possible in some areas for $50 to $100 per day, but professional testing with calibrated equipment and proper interpretation is recommended for code compliance and accuracy.
1 votes
Marked as accepted