Foundation Vents are a small item that makes a big difference on airflow, moisture control, and passing inspections, especially on crawlspaces, garages, and older foundations. We stock options contractors can install fast and homeowners can use for clean replacements, including flood vent styles for areas where water is a concern. You can pick up from our Brentwood, East Setauket, or Riverhead yards, and we deliver across Long Island and NYC when you need material on site.
We keep a range of Foundation Vents on hand for common foundation openings and different wall types:
Block Vent
Premier Vinyl Vent
Steel Vent
Flood Vent
Overhead Garage Door Model (1540-574)
Wood Wall Model
Quick tip from our counter: bring your opening size, or snap a photo with a tape measure in the shot. We see a lot of replacements where the “standard size” is not actually standard.
We carry two dependable lines, and which one you pick usually comes down to the job requirements.
Monarch: Great for standard block and foundation venting when you want straightforward fit and durable everyday options.
Smartvent: The right direction when the spec calls for engineered flood vent solutions or you’re working in a flood zone and need the correct model for approval.
If you’re a contractor bidding flood zone work, tell us the municipality and what you’re trying to meet. We can help you narrow it down before you place the order.
Contractors use Foundation Vents on new builds, additions, foundation repairs, garage walls, and crawlspace ventilation. Homeowners usually need replacements after rust, impact damage, or when the vent gets buried by grade changes.
Real-world tip we give all the time: don’t wait until after landscaping to think about vent height. Final grade and paving can choke off airflow or put the vent too low, and then you’re dealing with moisture problems and callbacks.
Pick up at Brentwood, East Setauket, or Riverhead and we can load you fast, especially if you call ahead with counts and sizes. If you’re running multiple sites or tight on labor, we deliver Foundation Vents across Long Island and NYC and can stage the drop so it lands where your crew is working.
Another practical tip: if you’re installing around the whole perimeter, add a couple extras for breakage and last-minute plan changes. It’s cheaper than losing half a day to a re-run.
Call ahead with your quantities, opening sizes, and whether you need a flood vent style, and we’ll stage your order for pickup or delivery. Stop by our yard and talk to us, or ask about delivery anywhere on Long Island and into NYC.
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Pour in place system Available in nominal and full wall widths Available with two vent insert options: Manually operated, easy to open vinyl vent insert – opens from outside Thermostatically controlled vinyl vent insert – vent automatically opens at 70° F and closes at 40° F.

System available in a variety of wall widths – easily installed in poured concrete or concrete block walls without modification Welded frame for maximum structural strength and rigidity Vent opens and closes with ease, allowing ventilation in any season Insert constructed aluminum with aluminum screen

Vent Size Rough Opening Flood Coverage Air Ventilation
16-in. x 8-in. 16-in. x 8-in. 200 sq. ft. n/a
Overhead Garage Door Model Shown in White

Vent Size Rough Opening Flood Coverage Air Ventilation
16-in. x 8-in. 16 1/4-in. x 8 1/4-in. 200 sq. ft. n/a
Flood Vent Shown in Stainless Steel

Vent Size Rough Opening Flood Coverage Air Ventilation
32 1/2-in. x 16-in. 33-in. x 16 3/8-in. 800 sq. ft. n/a
Flood Vent Multi-Frame Shown in Stainless Steel”

Vent Size Rough Opening Flood Coverage Air Ventilation
16-in. x 16-in. 16 1/4-in. x16 3/8-in. 400 sq. ft. n/a
Flood Vent Stacker Shown in Stainless Steel”

Vent Size Rough Opening Flood Coverage Air Ventilation
32 1/2-in. x 16-in. 33-in. x 16 3/8-in. 800 sq. ft. 204 sq. in
Smart Vent Multi-Frame Shown in Stainless Steel
This product is currently out of stock and unavailable.

Vent Size Rough Opening Flood Coverage Air Ventilation
14 1/2-in x 8 1/2-in. 14 1/2-in x 8 3/4-in. 200 sq. ft. n/a
Overhead Garage Door Model Shown in White

Vent Size Rough Opening Flood Coverage Air Ventilation
Varies, see Spec Sheet. n/a Varies per model Varies per model.
Pour-in-Place Vinyl Bucks Shown in Stainless Steel
This product is currently out of stock and unavailable.

Vent Size Rough Opening Flood Coverage Air Ventilation
16-in. x 8-in. 16 1/4-in. x 8 1/4-in. 200 sq. ft. 51 sq. in.
Smart Vent Shown in Stainless Steel

Vent Size Rough Opening Flood Coverage Air Ventilation
32 1/2-in. x 16-in. 33-in. x 16 3/8-in. 800 sq. ft. 204 sq. in
Smart Vent Multi-Frame Shown in Stainless Steel
Address: 70 Comsewogue Rd SUITE 9 (end of the road)
Setauket-East Setauket, NY 11733
Phone: (631) 928-4665