Window Well Covers in Grand Rapids, MI
An open egress well is a bucket pointed at the sky in a city that collects around 75 inches of snow a year. A cover is the cheapest part of the whole assembly and the one that decides how much work the drainage has to do.
What a cover is actually for
Four jobs, in rough order of importance.
Keeping water out. This is the big one. Every inch of rain and every melting snowbank that lands inside the well has to be handled by the stone core underneath it. Cover the well and you remove most of that load before it ever becomes a drainage problem. In our clay soils, that's the difference between a drainage system working comfortably and working at its limit every spring.
Keeping debris out. An uncovered well fills with leaves, and a well full of leaves becomes a compost bin sitting against your foundation with a window in it. It also clogs the stone core, which is how a well that drained fine for six years suddenly doesn't.
Safety. A four-foot-deep hole in a yard is a genuine hazard for small children, and wells routinely trap animals — we find frogs, chipmunks, rabbits and the occasional very unhappy cat. A cover ends that.
Comfort. A covered well is a buffer of still air outside the window, which measurably reduces drafts and condensation on the glass through a Michigan winter.
The rule that matters
Covers, grates and grilles are permitted over an emergency escape opening or its well — but only if they can be released from the inside without keys, tools or special knowledge, and only if the opening still meets its minimum dimensions with them in place.
Read that carefully, because it rules out a lot of what's sold. A cover fastened down with screws is not compliant. A heavy steel grate that an adult can shift but a ten-year-old can't is a problem. A cover that sits low enough to catch the casement sash as it swings open is a failure even if it lifts easily.
The practical answer is a cover that lifts or hinges upward from inside the well, sized with enough height to clear the sash swing. We check that by opening the window with the cover installed before calling for inspection — the same way the inspector will.
The four kinds you'll be offered
Polycarbonate dome
The usual answer for egress wells. The dome shape sheds snow and rain, gives clearance for the sash to swing, and passes daylight so the room doesn't go dark. Sized to the well, secured with releasable clips. Choose a UV-stabilized panel — cheap acrylic yellows and goes brittle within a few Michigan winters.
Flat polycarbonate
Lower profile and less obtrusive where the well sits beside a patio or walk. Sheds less snow, so it needs adequate thickness and support for the accumulation we get here. Works well on shallower wells where sash clearance isn't tight.
Metal grate
Strong enough to walk on, which matters where a well sits in a path or a driveway edge. Passes water straight through, so the drainage below has to be right. Must still be releasable from inside — the walk-on versions often aren't, so specify carefully.
Mesh or screen
Keeps leaves and animals out, keeps water in. Cheap, and fine on a non-egress well with good drainage. It's not the answer for an egress well where you're trying to reduce the water load.
Custom sizing beats stock, most of the time
Stock covers are made for stock wells. If you have a standard corrugated steel well in a common size, a stock cover fits and there's no reason to pay for more. Once your well is a custom width — which it usually is on an egress installation sized around a wide casement — a stock cover either overhangs, leaving gaps that funnel water where you don't want it, or sits inside the rim and lets everything past the edges.
A cover that doesn't seal at the rim does maybe half the job. The measurement takes ten minutes; the difference lasts as long as the well does. Covers are a small line on our cost page and one of the few places where spending slightly more clearly pays.
Two other things worth specifying: mounting hardware that resists corrosion, because it lives in a wet environment, and a snow-shedding profile if the well faces north where accumulation lingers.
Buying one yourself? Measure the outside rim of the well at its widest points, note the depth, and check the height your casement sash needs to swing. Then confirm that whatever you're buying releases from inside. Those four numbers prevent nearly every cover that ends up returned.
Will a cover make the basement dark?
A clear polycarbonate cover passes most of the daylight. A grate passes nearly all of it. Solid or heavily tinted covers do cut light noticeably, which matters if the room is a bedroom relying on that window for its glazing area. Clear is the default for a reason.
Will condensation form under the cover?
Some, in shoulder seasons — warm damp air, a cold panel. It's normally minor and clears on its own. Covers with a small ventilation gap at the foundation side manage it better, and they still keep out the vast majority of rain and snow.
Can it hold the snow we get?
A properly specified polycarbonate cover with adequate thickness and support handles normal accumulation. What causes trouble is a thin panel spanning a wide well with nothing under the middle. On wide egress wells we use a supported cover rather than a single unbraced sheet.
Does a cover replace proper drainage?
No, and this is worth being blunt about. A cover reduces how much water reaches the well; it doesn't handle what still gets there from groundwater, wind-driven rain and runoff along the foundation. A well without a stone core will eventually hold water even under a cover. The cover makes good drainage easier, not unnecessary.
Do you install covers on wells you didn't build?
Yes, that's a large share of the cover work we do. We'll measure the existing well, check the sash clearance and the release hardware, and fit a cover to it.
Cut the water load before it reaches the drain
A cover sized to your well rim, clearing your sash swing, releasable from inside. Measured and fitted on existing wells as well as new ones.