Ultra Protect 41 in. x 19 in. Semi-Round Clear Polycarbonate Window Well Cover-SR400 - The Home Depot

Ultra Protect

Model # SR400

Internet # 100372035

Store SKU # 194194

41 in. x 19 in. Semi-Round Clear Polycarbonate Window Well Cover

Ultra Protect 41 in. x 19 in. Semi-Round Clear Polycarbonate Window Well Cover

This item has been discontinued.
The Home Depot no longer carries this specific product.

$69.00 / each


Model # SR400

Internet # 100372035

Store SKU # 194194

Store SO SKU # 666213

The "Ultra Protect" basement window well covers are designed with "Safety" and "Security" for your home and family in mind. These professional grade lightweight basement window well covers are built using clear impact resistant, UV-resistant, polycarbonate sheet plastic and structural grade aluminum. Installing an "Ultra Protect" basement window well cover over your open basement window well minimizes the risk of persons or animals falling into deep, uncovered, unprotected basement window wells, preventing possible serious injury. When properly installed using our solid steel “SAF-T Lock” locking system (included) these covers will support a minimum of 250 lbs. This locking system features a pull pin release that quickly unlocks the cover from inside the basement window well without the use of a tool (required by building codes) making for a quick and easy exit in the event of an emergency. The model SR400 (41 in. x 19 in. semi-round) window well cover is designed for use over typical corrugated steel window wells. After installation this cover can be trimmed (if needed) to the profile (plus up to a 1 in. overhang around the perimeter) of any type basement window well (steel, concrete, block, timber etc.) by using an ordinary jigsaw equipped with an aluminum cutting blade (8 to 12 teeth per in. blade for best results) making for a perfect fit window well cover over any type window well. Also see our Window Well Egress Escape Ladders.

  • Basement window wells are the #1 entry point for home invasions. Deter intruders with "Ultra Protect" basement window well covers
  • Minimizes the risk of persons falling into deep, uncovered, unprotected basement window wells preventing possible serious injury
  • Made with clear impact resistant, UV-resistant, polycarbonate sheet plastic and structural grade aluminum
  • Installation hardware includes our “SAF-T Lock” locking system helping keep your home and family safe and secure
  • Cover will support a minimum of 250 lbs when properly installed using our “SAF-T Lock” locking system (included)
  • 21 stock sizes to choose from for next day shipping
  • Can be trimmed to the profile of any semi-round shape window well for a perfect fit
  • When choosing an “Ultra Protect” Basement WindowWell Cover be sure to choose a cover large enough to cover the entire well opening plus a minimum 1/2 inch overhang of the window well perimeter. View installation instructions for more details
  • Durable and Lightweight so even young children can lift the cover off and exit quickly in the event of an emergency
  • Reduces draft and keeps out unwanted animals, debris, and precipitation
  • Meets or Exceeds IBC & IFC building codes
  • Practice emergency escape routes so all family members become familiar with unlocking windows and climbing out window wells safely
  • Also see our window well egress escape ladders
  • Lifetime Warranty

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.


Assembled Depth (in.)  19 in  Assembled Height (in.)  1 in 
Assembled Width (in.)  41 in  Product Length (in.)  41 
Product Width (in.)  19  Thickness (In.)  1/8 
Hardware Included  Yes  Light transmittal  Yes 
Locking system  Yes  Material  Plastic 
Product Weight (lb.)  7 lb  Returnable  90-Day 
Weight Capacity (lb.)  250  Window Well Part  Cover 
Warranty / Certifications
Manufacturer Warranty  Lifetime Warranty 


Rated 4.2 out of 5 by 14 reviewers.
Rated 5.0 out of 5.0 by Lexan Superior to Cheap Plastic! These covers, while expensive, are much stronger than your run-of-the-mill junk covers which crack at the first hint of pressure. The installation is a bit involved and requires access to the inside of the window well from the interior of the basement. My basement windows are all glass block and therefore the wells are inaccessible from inside, so I had to modify the installation procedure. After installing the brackets I used heavy duty velcro cut into small pieces on top of each bracket instead of the more secure cotter pins. It works, but obviously wouldn't protect against somebody just lifting the cover off. September 30, 2012
Rated 5.0 out of 5.0 by Found it at Home Depot After a long, tough search on line, I finally found this GE Lexan window well cover at Home Depot. Price is reasonable, considering it's strength. I had one of these from years ago and its never failed me. Despite heavy snow this winter that crushed and broke the "flexible plastic" ones we always see, this version is strong, flat and ready to do the job better. If you have a flush window well, it'll really make your life easier. Spend a little extra money and ensure yourself years of peace nad no maintenance beyond a little cleanup here and there. Well worth the cost, especially if you can get it on the free shipping specials. May 9, 2010
Rated 5.0 out of 5.0 by Looks & functions great Likes that it lays flat, is non-obtrusive & attractive (no colors to conflict with home paint, etc.) Does job as intended. While instructions indicate installing lots of brackets, ours fit nicely under well & siding cavities without brackets. Wind doesn't move. April 29, 2014
Rated 4.0 out of 5.0 by Worth the price and worth taking time to custom install. To get a professional look I trimmed the cover to custom fit each window well. I had 7 window wells to cover and each one did require a custom cut. It was well worth the time to do this - - takes about 1-1 1/2 hours for each window well. Installation was pretty easy but if you are attaching to concrete foundations you should use a hammer drill to get the holes into the foundation material. I would not recommend standing on the covers even though the info indicates a 250 lbs. load. No way on that stat. May 12, 2013
Rated 5.0 out of 5.0 by great window well cover easy to install, works well, supports my weight without a problem. alot better than those cheep plastic covers. June 15, 2006
2 >>


Standard Shipping includes delivery by small parcel service. Processing time varies by product.

Orders for this item may be expedited for an additional fee.

Other Delivery Options:

Express and Expedited shipping options are also available. Estimated arrival times are available in checkout.

If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.