Videos

Blower Door Test

During a blower door test, the fan pulls air out of the house, lowering the pressure inside.  The higher outside air pressure then flows in through all unsealed cracks and openings.

our service area

We serve the following areas

North CarolinaSouth Carolina Our Locations:

GSM Services
1535 W May Ave
Gastonia, NC 28052
1-704-864-0344