Ventilation Fans

Crawl Space Ventilation Fans Available in San Francisco, Sacramento, San Jose & Nearby

What It Does:

Venting a crawl space with outside air brings summer humidity and cold winter air into your home, which leads to damaging mold and rot underneath your home.

The Crawl-O-Sphere™ Crawl Space Fan provides another way to ventilate a crawl space environment-- with the already-conditioned air present in your home. The Crawl-O-Sphere™ is for use only in homes with central air conditioning.

The Crawl-O-Sphere™ is intended as part of our crawl space vapor barrier system. When combined with our crawl space moisture barrier and vent covers, it provides a cost-effective way to keep a crawl space dry.

Installation Time:

Mounting a Crawl-O-Sphere™ in between the floor joists and installing a vent to the floor above will be done within the specified time frame for the rest of the job.

Properly Ventilating A Crawl Space

There are many products on the market these days that are used to ventilate crawl spaces. Some suggest taking air inside your crawl space and blowing it out of the house. Others recommend blowing air from the outside into your home. But what if it's damp, humid, or cold outside?

At Foundation Repair of CA, we recommend installing a crawl space dehumidifier over using a crawl space fan. However, if you're looking for a more economical way to dry your space, the Crawl-O-Sphere™ is the way to go.

Since an encapsulated crawl space becomes part of your housing envelope, you can dry it without significant changes in your home's energy efficiency. Depending on the size of your crawl space, this system will typically draw between 15 and 80 cubic feet of air per minute from the home above.

Call us for a free crawl space fan quote today!
Get a FREE Quote!

We service Sacramento, Modesto, Vacaville, Fairfield, Redding, Chico, Grass Valley, Citrus Heights, Suisun City, Yuba City, Roseville, Carmichael, Clovis and many nearby areas in California.

our service area

We serve the following areas

  • Alta
  • Angels Camp
  • Applegate
  • Camino
  • Camptonville
  • Cassel
  • Challenge
  • Colfax
  • Columbia
  • Cool
  • Copperopolis
  • Diamond Springs
  • Dutch Flat
  • El Dorado
  • Fall River Mills
  • Fiddletown
  • Forbestown
  • Garden Valley
  • Glencoe
  • Grass Valley
  • Greenwood
  • Hat Creek
  • Jackson
  • Jamestown
  • La Grange
  • Lotus
  • Mcarthur
  • Meadow Vista
  • Mokelumne Hill
  • Mountain Ranch
  • Murphys
  • Nevada City
  • North San Juan
  • Old Station
  • Pine Grove
  • Pioneer
  • Placerville
  • Planada
  • Plymouth
  • Rescue
  • Rough And Ready
  • San Andreas
  • Snelling
  • Somerset
  • Sonora
  • Sutter Creek
  • Tulelake
  • Vallecito
  • Volcano
  • Wilseyville
Our Locations:

Foundation Repair of CA
1813 Rutan Drive Unit A
Livermore, CA 94551
1-925-359-7775