Window Well Covers and Drainage in South Bend

Window well covers and drainage are the two things that keep an egress well from becoming a basement flood. Clear polycarbonate covers ($150 to $600) shed South Bend’s snow and leaves while still opening from inside, and well drainage repairs or new builds ($300 to $1,000) cover gravel beds, tie-ins to the footing drain tile or sump, and dry wells dug below frost depth for houses that have neither. Both belong on every new well, and both can be added to an existing one.

The South Bend water problem, specifically

Three facts explain most flooded wells in South Bend.

The snow. On the 1991 to 2020 normals, South Bend averages 64.5 inches of snowfall a year: 13.7 inches in December, 21.6 in January, 16.1 in February. That is lake-effect, Lake Michigan sitting 20 miles to the northwest and rarely freezing over. A window well is a bucket that fills with drifting snow all winter and melts in a hurry in March, when the ground beside it is still frozen and cannot absorb anything. The National Weather Service calls mid-winter through early spring the wettest stretch of the year here.

The ground. The Indiana Department of Natural Resources describes the South Bend and Mishawaka area as surface sand and gravel over a clay and glacial till layer 20 to 100 feet thick, with thick clay locally under both cities. Water runs down through the sand fast and stops on the clay. A well bottom that sits at or near that transition is exactly where the water pools.

The river. The U.S. Geological Survey notes that depth to water in the St. Joseph aquifer system is small and that groundwater flows toward the St. Joseph River. Along the Near Northwest, Keller Park, River Park, and the Mishawaka riverfront, the water table itself can rise into the well during a wet spring.

What the code says about drainage

Section R310.2.3.2 of the 2020 Indiana Residential Code requires window wells to be designed for proper drainage by connecting to the building’s foundation drainage system (the footing tile required by R405.1) or by an approved alternative method. There is an exception for foundations on well-drained sand and gravel soils, Group I in the Unified Soil Classification System.

Some Michiana lots genuinely qualify for that exception, particularly on the sandier ground north of the river. Many do not, and the ones that look like they do are the dangerous ones: sand at the surface, clay at four feet. Relying on the exception is the risky call. Every well should get an outlet.

How a well gets drained

Tie-in to footing drain tile. The best case. Most South Bend houses from the 1950s on have a perforated drain loop at the footing that runs to a sump. We dig to it, adds a perforated drop from a gravel bed under the well, and connects. The well drains the way the foundation does.

Tie-in to the sump line. Where the tile is silted shut but the sump is working, a dedicated line runs from the well bed to the sump crock. Common in 1920s and 1930s houses that got a sump added in the 1980s or 1990s.

Dry well. Where there is no tile and no sump, the usual situation in the Near Northwest, Sunnymede, and River Park houses that predate footing drains, the answer is a gravel-filled pit dug below the 36-inch footing depth Indiana’s code table sets for St. Joseph County, sized to hold and slowly release a lake-effect melt. On clay this is what makes the difference; the gravel volume is the storage.

Gravel bed and fabric. Under every well, whichever outlet is used: washed stone over filter fabric so silt does not clog the bed in five years.

Grading. The well should not be the low point of the yard. Backfill should go in lifts with the surface sloped away from the house. A surprising number of “well leaks” are really downspouts dumping next to the well.

Covers

A cover keeps snow, leaves, mulch, and small animals out of the well, which is most of what clogs a drainage bed. In South Bend a cover is the difference between a well that holds a foot of packed snow and one that holds none.

What a good cover looks like:

• Clear polycarbonate, bubble or flat, so the window still gets light.
• Sized to the well, sitting on the rim or clipped to it, with a snow load rating that means something in Michiana.
• Openable from inside without tools or a key. The 2020 Indiana Residential Code requires that bars, grilles, covers, and screens on an egress opening be releasable or removable from inside without keys, tools, or excessive force. A cover screwed down from outside turns an escape route into a trap, and it fails an inspection.
• Load-rated so a child or an adult stepping on it does not go through.

Standard sizes are the low end of $150 to $600. Deep wells, oversized walkout-style wells, and composite wells with odd geometry get custom-fit covers at the high end.

Covering a very large well

Some Michiana houses, especially newer ones with a finished lower level, have wells far bigger than a stock cover: a run of 10 to 16 feet along the foundation, or a well that projects 5 feet or more out from the wall. Those are custom work, and a few things decide the price and whether the cover passes.

Measure three numbers, not two. The length along the foundation wall, the projection straight out from the wall at the widest point, and the shape of the rim (straight, rounded corners, or stepped). Measure to the outside of the rim, since that is where the cover sits. Photos from above and from both ends save a second visit.

Expect a very long well to be covered in sections. For scale, the large custom polycarbonate covers one maker shows in its gallery run roughly 60 to 82 inches on the long side (82 x 40, 79 x 50, 77 x 44 inches), framed in aluminum and rated to about 400 pounds depending on style. A 16-foot well is about twice the longest of those, so ask anyone quoting it how many pieces it is built in, how the joints are supported, and how the joints shed water and snow.

The piece over the window has to open from inside. The releasable-from-inside rule applies to whatever covers the escape path, so on a sectional cover the section in front of the egress window needs a hinge, prop, or escape hatch that works without tools, keys, or a ladder from below. The fixed sections elsewhere on the rim do not, but they still need to carry a person’s weight.

Snow is the load to plan for. A long, nearly flat cover holds drift the way a carport roof does. A slight built-in slope away from the house, and a back panel or flashing where the cover meets the siding, keep the melt from running back into the well.

If you send the three measurements and photos through the form, the quote can come back with the number of sections, which one opens, and a price, before anyone drives out.

Signs your well needs this work

• Water line or silt stain inside the well after a thaw
• Rust-through or bowing on a corrugated well
• Efflorescence or damp drywall on the basement wall below the window
• A sump that runs constantly in March while the well is full
• Snow packed into the well all winter with no cover
• Mulch or leaves filling the bottom of the well

Any of those is a reason to book the free measure. Drainage repair on an existing well is usually a short job in season. Full well replacement, if the steel is gone, is covered on the window well installation page, and a new egress opening comes with all of this built in on the egress window installation page.

Service area

South Bend, Mishawaka, Granger, Osceola, Elkhart, and Goshen. Drainage work needs thawed ground, roughly April through November. Covers install any month. Prices are on the pricing page.