Blower Door Testing

blower door test energy home efficiency long island powersmith

Blower Door Testing

Test your “sealed” doors and windows with our specialized blower door.

You may think your home is air tight, but our blower door test will determine scientifically whether it is adequately sealed.

We begin this test by attaching a temporary cover over your front door’s exterior frame. This cover includes a variable-speed fan, air pressure gauges and an airflow manometer.

When we start the fan, the calibrated gauges and manometer precisely measure how much indoor air the fan can pull out. The more air, the more wasteful your home’s “envelope” is. (Some air leakage is required to avoid condensation and stale, contaminated air, but we know these parameters.)

FREE retest following our retrofit.

Once our certified technicians retrofit your home with required sealants and patches to eliminate unwanted airflow, we will conduct another blower door test free of charge.

Our gauges will demonstrate the wastefulness “before” and the energy efficiency  “after.”

And for many years to come, you will be blown away by a lower monthly energy bill!

Start saving by scheduling your Home Energy Audit today! Call us at (631) 647-4701

Client Testimonials


They spent the whole time checking out our house from top to bottom, every seam and window — they didn't miss anything! It wasn't like any other experience I've had with a company. I would definitely recommend Powersmith! 

Dan Kirk & Alice Restivo - Home Energy Audit, Hicksville, NY


From the very first day, the first person I met was absolutely great. He went through the audit with me and what to expect... Everything was done in one day! 

Deneka Alexander, Wyandanch, NY