Ventilation Fans

Crawl Space Fan Installation in Greater Washington D.C.

A ventilation fan installed for a crawl space in Lanham

Crawl space fans are an economical option if dehumidifiers are unobtainable.

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.

To get started on crawl space ventilation in Greater Washington D.C., call NV Waterproofing & Foundation Repair for a free estimate. Our crawl space services are second to none!

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 NV Waterproofing & Foundation Repair, 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.

Contact us for a free estimate for a crawl space fan

If you're concerned about ventilation in your crawl space, we can help you find the right solution for your home. NV Waterproofing & Foundation Repair services Arlington, Washington D.C., Alexandria and many nearby areas in Virginia, District of Columbia, and Maryland. Schedule a free estimate with us today!

Looking for a price? Get a no cost, no obligation free estimate.

our service area

We serve Ashburn and the nearby area

VirginiaMaryland
  • Adamstown
  • Ashton
  • Barnesville
  • Beallsville
  • Bethesda
  • Boyds
  • Braddock Heights
  • Brinklow
  • Brookeville
  • Brunswick
  • Buckeystown
  • Burkittsville
  • Cabin John
  • Chevy Chase
  • Clarksburg
  • Damascus
  • Dayton
  • Derwood
  • Dickerson
  • Gaithersburg
  • Garrett Park
  • Germantown
  • Glen Echo
  • Glenelg
  • Highland
  • Ijamsville
  • Jefferson
  • Kensington
  • Knoxville
  • Middletown
  • Monrovia
  • Montgomery Village
  • Mount Airy
  • Mount Rainier
  • New Market
  • Olney
  • Point Of Rocks
  • Poolesville
  • Potomac
  • Rockville
  • Sandy Spring
  • Silver Spring
  • Spencerville
  • Suburb Maryland Fac
  • Takoma Park
  • Tuscarora
  • Washington Grove
District of Columbia
  • Washington
Our Locations:

NV Waterproofing & Foundation Repair
7780 Progress Ct
Gainesville, VA 20155
1-703-722-8580
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