Air Tight Insulation of West Covina

Top quality job by top quality workers. Highly recommend

We hired Air Tight Insulation to address serious energy loss in our West Covina home, and the experience was outstanding. Their team used a blower door test to scientifically pinpoint where our home was leaking air. The sealing work they performed was incredibly meticulous—around windows, doors, attic hatches, and all penetrations. The crew was professional, clean, and thorough. Our home now feels solid, quiet, and maintains a perfect temperature. This is true building science expertise.

I'm really happy with the job that was done. They said what they were going to do and delivered. Highly recommended