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Our “Whole Home Performance Check-Up” uses building science to help us diagnose and create a treatment plan that will increase your home’s energy efficiency & comfort, lower your utility bills, reduce your carbon footprint, improve the indoor air quality, and extend your structure’s durability. It is so much more than a clipboard audit that some companies call an “Energy Audit”. We have three levels of our “Whole Home Performance Check-Up.” The Fundamental Plan, Diagnostic Plan and Comprehensive Plan.

Call us for a free phone consultation to see which one is right for you.
Pre-test: We interview the homeowner to see what specific problem areas we need to address and if there are any areas of the home that are preferred for us not to enter. We will also need copies of the last year's worth of utility bills. If you don’t have copies, they are easily available from your utility company. Test day prep instructions will be left with you or emailed to you ahead of time. 

Some of the tests that are done in our Comprehensive “Whole Home Performance Check-Up” include:
1. Combustion Safety

This is an essential series of safety tests that we perform in all combustion appliance zones (CAZ) prior to performing Blower Door and Duct Blaster tests. The combustion analysis of gas appliances includes your water heater, furnace, cooktop, oven, and fireplace. These tests include: gas leak detection, combustion draft pressure measurements, and carbon monoxide production & spillage evaluations for each vented appliance. These tests are conducted under worst-case conditions. Combustion safety test results must be acted upon according to the Combustion Safety Action Level table. A preliminary and post-installation safety inspection of all combustion appliances must be completed whenever changes to the building envelope and/or heating system are part of the work scope. 
2. Blower Door Test

This test determines where there are air leaks in the building envelope. The Blower Door test involves fitting an adjustable fan inside a flexible nylon frame that's placed into an exterior door frame. The fan pulls the air out of the house, lowering the air pressure inside. The higher outside air pressure will gain access to the interior through unsealed cracks and openings (a process called infiltration), in places like door jams, window and floor moldings, and even recessed lighting fixtures. While the house is depressurized, we tour the house with a smoke puffer to find these holes in the building envelope.

We document these sites in both written and picture form so they can be later identified for air sealing upgrades. The blower door fan is attached to a pressure gauge (Manometer), which measure airflow and the relative leakiness of a building. Air Changes per Hour (ACH) is a measurement of how many times the volume of air in a building leaves or enters the building, in one hour. We determine this by the fan pressure measurement and calculate cubic feet per minute (CFM) of airflow through the fan. Leakier houses have higher ACH’s, and therefore higher cooling and heating expenses, and increased problems with comfort, indoor air quality, health, and moisture intrusion.
3. Thermography or Infrared Scanning

This test determines variations in surface temperature, and is very effective in identifying areas needing repair without having to dismantle or uncover walls or other structural elements. While the house is still pressurized and there is a 10 degree temperature difference between the inside and outside, we tour the house with the infrared camera to check for air leaks, missing or poorly installed insulation, thermal bypasses, thermal bridges, and moisture issues. We document problem spots with both thermal imaging and digital cameras.
Air Ducts Repair & Air Duct Replacement
Lic # CAC1817947
License # CAC1817662 & CFC1425927