ALL BAY INSULATION & AIR DUCT CLEANING Since opening in 2000, All Bay Insulation & Air Duct Cleaning has been proud to serve the Bay Area and San Diego areas. Our team is proud to provide air duct cleaning, replacement, attic insulation & other attic services. We’re committed to not only providing top quality service, but going above and beyond to ensure our customers are completely satisfied. Contact us now for a free estimate. CRAWLSPACE SEAL SPECIALISTS Homeowners dealing with a damp crawl space in an older home can easily remedy the problem with one simple project: Encapsulation. Most older homes feature venting, a practice that was once thought to be ideal for countering humidity problems. Today, however, we know now that vented spaces do little to combat humidity, and they can actually cause moisture problems.Once you've created and maintained an encapsulated, dry space, you can ensure that your building materials stay dry, the structure remains strong, and that you make the best of your home's energy usage.