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Crawl Space Door Systems
Crawl Space Door Systems Recessed Foundation Vent Cover

Crawl Space Door Systems Recessed Foundation Vent Cover

4.8· 5 ratings

Best price now

$12.00at Crawl Space Door SystemsObserved at 3:09 PM

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Our take on the Crawl Space Door Systems Recessed Foundation Vent Cover

A recessed plastic cover that fits over a foundation vent to close off a crawl space opening. It measures 17.25 by 9.75 inches and sits 1-1/4 inches deep, so it fits vents built into a recessed foundation wall. It does not open, so it is a fixed closure rather than an adjustable vent. At $12.00 at Crawl Space Door Systems as of November 4, 2026, it is the lowest new price among the two stores that list it.

Best forSealing a recessed foundation vent on a closed crawl spaceHomeowners winterizing a crawl spaceCovering a vent opening that never needs to openPairing with a crawl space vapor barrier and dehumidifier
Pros
  • Low cost at $12.00
  • Recessed profile sits flush with the foundation wall
  • Plastic resists rot and rust
  • Comes in white or black to match the wall
  • Simple one-piece design with nothing to adjust
Cons
  • Non-opening, so it blocks airflow year-round
  • Mounting hardware and adhesive are not included
  • Only fits vents with about 1-1/4 inches of inside depth
  • One size only: 17.25 by 9.75 inches
  • No insulation value stated

Crawl Space Door Systems Recessed Foundation Vent Cover prices at every store

  • Crawl Space Door SystemsNew

    In stock

    $12.00Observed at 3:09 PM
    Visit store
  • WalmartNew

    Out of stockSold by Shopawalla

    $28.99Observed at 3:09 PM
    Visit store

Crawl Space Door Systems Recessed Foundation Vent Cover price history

Lowest price we've seen: $12.00 on Nov 4 at Crawl Space Door Systems. Tracked across 2 stores since Nov 4.

What reviewers say

The listing shows 4.8 out of 5 from 5 ratings, a small sample. Buyers of this type of cover generally want a snug fit and easy install.

Pros
  • Fits recessed foundation vents
  • Easy to install
  • Low price
Cons
  • Hardware sold separately
  • Fixed size limits fit options

Specifications

Type
Vent Cover
Is Inline
No
Vent Type
Foundation Vent Cover
Mounting Location
Foundation
Mounting Style
Recessed mount
Depth
1-1/4 inches (inside depth)
Dimensions
Inside depth of 1-1/4 inches
Height
9.75-in
Length
17.25 in
Width
17.25-in
Material
Plastic
Application
Crawl space
Use
Ventilation
Typical Rooms
Crawl space
Typical Environment
Crawl spaces, Closed crawl spaces, Conditioned crawl spaces
Typical Users
Homeowners
Installation Location
Foundation
Installation Type
Recessed
Mounting Hardware Included
No
Included Accessories
Fasteners (not included), Adhesive (not included)
Color
White, Black
Shape
Rectangle
Design Highlights
Non-opening feature

Questions and answers

Is this vent cover worth it?
At $12.00 it is a cheap way to close a recessed foundation vent. It makes sense if you want a permanent seal and your vent matches the 17.25 by 9.75 inch opening.
Does it open and close?
No. It is a fixed, non-opening cover. If you need seasonal airflow control, look for an adjustable foundation vent instead.
What size vent does it fit?
It fits a recessed opening about 17.25 inches long, 9.75 inches high and 1-1/4 inches deep. Measure your vent before ordering, since there is only one size.
What is in the box?
The cover only. Fasteners and adhesive are not included, so plan on buying screws or construction adhesive separately.
Can I use it on a conditioned crawl space?
Yes, it is listed for closed and conditioned crawl spaces. Sealing vents is common when the crawl space is encapsulated and conditioned.
When is it cheapest?
The best new price was $12.00 at Crawl Space Door Systems as of November 4, 2026. Two stores list it, so compare both before buying.
Where is the Crawl Space Door Systems Recessed Foundation Vent Cover cheapest?
At Crawl Space Door Systems, for $12.00, as of our latest check.
What do buyers say about the Crawl Space Door Systems Recessed Foundation Vent Cover?
Rated 4.8 out of 5 from 5 ratings.
Where can I buy the Crawl Space Door Systems Recessed Foundation Vent Cover?
2 stores we checked sell it, including Crawl Space Door Systems, Walmart.