Estimate

Indow Instant Estimate

Enter your window dimensions below to see an instant estimate and start your order! Get in touch with us if you have any questions about window compatibility, pricing, performance, selecting the right acrylic grade, or if you have non-rectangular windows.

For IndowPRO and 50+ window commercial orders, please contact our commercial sales team.

We need two dimensions for each window in your your estimate, rounded to whole inches. You'll capture production-quality measurements once you're ready to order.

Here’s how:

window insert installation

STEP 1

Identify the place in your window to install your insert. Some windows have more than one frame step, shown above in blue and yellow.

window insert installation

STEP 2

For the inserts to fit there must be at least 5/8″ of flat space all the way around. Measure width and round up to the nearest inch.

window insert installation

STEP 3

The frame step must be unobstructed by window hardware or blinds. Measure the height and round up to the nearest inch.

Room
Window Description
Width
in
Height
in
Acrylic Grade
Trim Color

Add 2 more inserts to unlock a 10% sale discount!

Enter postal code to estimate shipping & sales tax

Postal Code

* Discount valid for residential customers who place a deposit by 2/20/26 and submit final payment by 3/20/2026. Shipping & sales tax not included. Cannot be combined with other offers.

Online estimates are available for rectangular window inserts. Additional charges may apply for oversized inserts, non-rectangular inserts, mullions, and other unique customizations. Please contact a Fit Specialist for an estimate involving specialty shaped inserts and other unique window configurations.

Connect With A Fit Specialist

Have a question or need some guidance building the right order for your space? Our expert Fits Specialists are available to assist you!