Flat window well cover 71x45 on plastic well

Flat Window Well Covers

Our flat window well covers are made from clear, virtually unbreakable polycarbonate, custom-designed to fit any shape, size, and type of basement window well.

  • Lifetime warranty on every polycarbonate cover
  • Supports up to 400 pounds of static weight
  • Crystal-clear, UV-coated polycarbonate that won’t shatter or yellow
  • Rust-free aluminum components are used for strength and long life 
  • Egress-compliant for egress-sized wells

See the examples above of installed window well covers that might resemble your personal project. Fill out our printable window well cover measuring guide and ask for a Free Estimate.

Custom Flat Window Well Covers 

A Flat polycarbonate window well cover from Window Well Experts gives you a virtually unbreakable cover for your basement window well. Our engineering team designs each cover from your measurements and photos, taking into account any obstructions and window types. Each cover helps to keep out snow, rain, debris, and animals, and Flat covers ship with a lifetime warranty.

Flat covers are an economical alternative to sloped covers, built with the same heavy-duty polycarbonate and design process. Each cover ships with rust-free aluminum hardware and instructions for easy DIY installation. Optional quick-release locks and wall hinges with a prop-up bar are available at additional cost.

See our estimate form to request a quote, or contact us with questions on sizing, hardware, or the best price on a new cover.

Get a Free Estimate!

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We Ship Anywhere in the Continental United States

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Why Pick A Flat Window Well Cover?

Polycarbonate has 250 times the impact resistance of glass and 30 times the strength of acrylic, which is why a flat polycarbonate cover from Window Well Experts outlasts the PVC and acrylic alternatives on the market. UV treatment keeps the cover clear instead of yellowing, and the polycarbonate supports up to 400 pounds while letting natural light reach the basement. Paired with our lifetime warranty, that’s peace of mind that few other window well covers offer.

Measurement Guide

Get our printable PDF with instructions on how to measure your window well for any style window well cover.

Product Features

Engineered for long-term basement protection. Built for strength, durability, and weather resistance.

400 lb Static Load

Safely supports an accidental step, snow buildup, or a fallen branch

Seals Out the Elements

Keeps snow, rain, dirt, yard debris, and animals out of your window well

Economical Alternative

Same heavy-duty polycarbonate and process as sloped covers, in a flat design

DIY Installation

Easy do-it-yourself install with all rust-free aluminum hardware and instructions included

Optional Add-Ons

Quick-release locks and wall hinges with prop-up bar available at additional cost

Lifetime Warranty

If a cover ever fails under normal use, we replace it. Please see the details here.

We Ship Window Well Covers Nationwide

Window Well Experts ships bubble window well covers anywhere in the continental United States. Orders go directly to your home or work site so contractors and homeowners can install them on arrival. Our covers are manufactured in the USA and arrive ready for DIY or professional installation, with all hardware included.

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Extreme Durability

Our window well covers are built to last. With a Lifetime Warranty, you can rest assured that your basement is protected!

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Direct shipping

To anywhere in the Continental United States!

Order your window well now & we will ship it directly to your home or work site.

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FREE Consultation

Having doubts about which window well cover type is best for you? Call now and get a free consultation with a Window Well Expert!

Frequently Asked Questions

With UV treatment and lifetime warranty coverage, our polycarbonate covers are built to last for decades. We don’t see the yellowing, cracking, or shattering that’s common with acrylic or low-grade plastic covers.

Our flat covers safely support up to 400 pounds of static weight, so they handle an accidental step, fallen branch, or accumulated snow without breaking. They’re not designed as a regular walking surface, so for load-bearing applications and a more “walkable” surface, a steel grate is the right product.

Yes. We build flat covers in egress-compliant sizes for egress-sized wells, and quick-release locks are available as an add-on to help prevent unauthorized access from outside your home, and keep your covers in place in high wind areas. Always check your local egress codes before installing any cover over an egress window.

Use our measuring guide to capture the width and projection of your well, then submit those numbers and photos with your order. Our engineering team designs every flat cover to your specific situation. Contact us if you’d like help measuring before you purchase.

Yes. Flat covers are custom-built for any window well type, including concrete, metal, plastic, paver, and timber wells. Send us your measurements, and we’ll engineer a cover to fit.

We ship to every state in the continental United States. Shipping rates and timing are calculated at checkout.

Get a Free Estimate

By Sending Us Your Window Well’s Measurements

Have Questions Or Need Help Measuring Your Wells? No Worries! Our Experts Are Available To Take Your Call

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A Top Brand You Can Count On

Window Well Experts has grown into a top brand in the window well category by building covers that last across all different types of wells, and standing behind every single unit we ship. Every bubble cover ships with our lifetime warranty, which is rare in this product category and a big part of why homeowners across the country choose us over alternatives. When you buy a window well cover from us, you’re buying peace of mind.

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R. DiLiello, Montgomery, PennsylvaniaR. DiLiello

I'm very happy with the window well covers! But, I was most impressed with the Customer Service. They spent a lot of time answering my questions and helping me through the process. Very much appreciated talking with the sales team.
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J. Laird, Rapid City, South DakotaJ. Laird

Excellent service and the covers survived their first golf ball sized hail storm. We don't have a Home Depot but we have a Menards.
Bubble dome cover with size 34 x 14 15. Perfect for elongated metal vents with windows going above the lip of the well.
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Michael S., Jackson, WyomingMichael S.

We went through two sets of the cheap Home Depot window well covers, which disintegrated within 1 year (like our neighbors). Spending more to get durable wells from Window Well Experts is well worth it!
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Get a Free Estimate on Your Flat Window Well Cover

Tell us the size of your basement window well, and we’ll send you a free quote on a custom polycarbonate flat cover built to fit. Contact us or submit your info using the button below, and a Window Well Expert will follow up with sizing, pricing, and shipping options.

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