Exterior Sills for Windows, Brick and Stone

Exterior Sills
  • Free Shipping direct to your jobsite or home
  • Engineered for aesthetics, durability and light weight
  • Architecturally Designed to match high-end precast concrete homes
  • Will not Rot, Warp or Infest like inferior wood products
  • Light Weight means it can be installed during construction, or after as a renovation
  • Painted any color of your choosing after installation
  • View more Exterior Window Trim Ideas

Stucco Window Sills

Our Stucco Window Sills are engineered in various sizes and shapes to architecturally enhance your home's curb appeal. Sills are engineered with a sloping top, which forces water to run off instead of pooling on the sill, where it can cause possible water damage to your home.

Made from light weight polystyrene (styrofoam) with an acrylic-modified cement coating and an embedded fiberglass mesh, our products are visually stunning, cost effective, and durable.

Unlike wood, our materials are inorganic and will not warp, rot or become infested. Unlike concrete, our product is light weight and doesn't require structural engineering, which means it can be easily added as a renovation. Unlike PVC or Vinyl, our materials do not expand and contract, which leads to less wear over time and less maintenance.

Replacing Window Sills

Our product can be used to replace existing wood or concrete window sills. With pre-existing wood sills, you'll want to remove the offending product and properly remedy the area by removing any moisture or mold, then adding a weather barrier before installing our product. With concrete window sills, it's typically easier to notch out the back of our product and simply install it over the existing sill.

Sills are designed to be installed at the base of the window, with the rest of the window framed with exterior window trim.

exterior window trim
  • Take $100 Off Orders Over $1000 with Coupon BULK10
Click Product Image For More Information
Sill 001more information

Sill 001

4 1/2" Height x 3 1/2" Width x 8' Length. One of the more economical styles of sills, Sill 001 has a classic design that incorporates a drip-edge to...
$80.00 per 8' piece
Sale: $60.00(25% off)
Sill 002more information

Sill 002

5" Height x 4" Width x 8' Length. Great substitute for a concrete sill, Sill 002 is a simple, clean design for those who prefer a modern appearance...
$80.00 per 8' piece
Sale: $60.00(25% off)
Sill 003more information

Sill 003

5 1/2" Height x 4" Width x 8' Length. For those that like the traditional appearance of Sill 001 but find it too small for their window size, Sill...
$88.00 per 8' piece
Sale: $66.00(25% off)
Sill 004more information

Sill 004

6" Height x 4" Width x 8' Length. The first of the more ornate designs, Sill 004 has a style that can not be imitated with anything other than...
$88.00 per 8' piece
Sale: $66.00(25% off)
Sill 005more information

Sill 005

5 3/4" Height x 4" Width x 8' Length. A multi-stepped window sill, the half-dozen shadows created by the multiple levels adds contrast and depth to...
$88.00 per 8' piece
Sale: $66.00(25% off)
Sill 006more information

Sill 006

6" Height x 4" Width x 8' Length. Sill 006 has a very "top heavy" design with a drip edge at the top and a slender leg. This unique design is seen...
$88.00 per 8' piece
Sale: $66.00(25% off)
Sill 007more information

Sill 007

6" Height x 5 1/2" Width x 8' Length. By far the most common molding used as a transition from EIFS / Stucco above to stone veneer below. Sill 007...
$104.00 per 8' piece
Sale: $78.00(25% off)
Sill 008more information

Sill 008

6 3/4" Height x 3 3/4" Depth x 8' Length
$92.00 per 8' piece
Sale: $69.00(25% off)
Sill 009more information

Sill 009

6 1/2" Height x 4 1/4" Width x 8' Length
$92.00 per 8' piece
Sale: $69.00(25% off)
Sill 010more information

Sill 010

6 1/4" Height x 3 1/4" Width x 8' Length
$88.00 per 8' piece
Sale: $66.00(25% off)
Sill 011more information

Sill 011

6 5/8" Height x 4" Width x 8' Length
$96.00 per 8' piece
Sale: $72.00(25% off)
Sill 012more information

Sill 012

8" Height x 3 1/2" Width x 8' Length. Sill 012 was designed for a very sleek design that has a large footprint on the wall without protruding out...
$100.00 per 8' piece
Sale: $75.00(25% off)
Sill 013more information

Sill 013

6 3/4" Height x 3 5/8" Width x 8' Length
$96.00 per 8' piece
Sale: $72.00(25% off)
Sill 014more information

Sill 014

4" Height x 2 3/8" Width x 8' Length. The most cost effective of all sills, providing a slope for drainage and a drip edge.
$72.00 per 8' piece
Sale: $54.00(25% off)

Window Sills not only increase the curb appeal of your windows, but are also designed to prevent water damage around windows. Sills are designed with a slope running from back to front to force water away from your windows, preventing water from accumulating and leaking into your windows. The inorganic styrofoam, fiberglass mesh and modified cement they are manufactured from ensure the sills will never rot or permit mold growth because of water and moisture.

Because of this, our exterior sills make an ideal window sill replacement for those who have know the trouble of replacing a window sill. Exterior sills may be adhered to brick, stone, stucco, ICF and EIFS and siding.

Common misspellings: sil, cill, cil

We supply exterior window sills for construction projects and renovations across the continental U.S., including California, Florida, Nevada, Texas, Ohio and New York. Are you a designer, builder or architect working on your next project? Contact us today with any questions or to get CAD details for blueprints.

Decoramould is an exterior sills supplier for home renovation, retrofits and alterations throughout the U.S.A. and Canada. Customers can buy exterior sills online, and have their exterior sills purchase shipped directly to them.

Our sills look like high end concrete sills, but weigh only a fraction as much - and often cost only a fraction as much as well. They can be installed during the initial construction of a home or building, or added on as decorative sills after construction. Installation is as easy as adhering them to the wall surface, for more information see installation instructions.

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