Basement Finishing in Cascade, MI

Cascade Has the Best Unfinished Square Footage in Kent County

Cascade Township homes are built on substantial lots, with substantial basements to match. Nine-foot pours, daylight windows, walk-outs to the back yard, framed mechanicals tucked neatly to one side. A lot of these lower levels are sitting on 1,000–2,500 square feet of usable space that's never been touched — drywall, flooring, lighting, and a plan away from doubling the way the house functions.

Finishing a Cascade basement is almost always the highest-leverage construction project a homeowner can run. The shell is already there. The foundation is already done. Insulation, drywall, mechanical extensions, and finish work get you the same livable square footage that an addition delivers — at roughly a third to half the cost. Whether the goal is an entertainment level, a kid space, an in-law suite, or a full apartment for a returning college kid, the lower level is the answer.

Thornapple Construction handles Cascade basement finishing end-to-end. In-home consultation, 3D design before we touch a stud, fixed-price contract that locks the number, one project lead managing every trade and inspection. The result is a lower level that reads like the rest of your home — not a finished basement.

Permits & Inspections

Cascade Township requires a building permit for any basement finish that adds habitable space, plus separate trade permits for electrical, plumbing, and mechanical work. We pull every permit and schedule every inspection — rough-in, insulation, and final — directly with the Cascade Township Building Department. You never have to step into a municipal office.

Egress windows are non-negotiable for any basement bedroom or sleeping space. Michigan code requires a minimum net clear opening of 5.7 sq ft, with a minimum 20" width and 24" height — most code-compliant installs end up around 28" x 44" or larger. Sill height tops out at 44" from finished floor, and the window well has to allow full opening and unobstructed escape. We handle excavation, the window unit, the well, and the cover.

Waterproofing matters more in older Cascade basements. Some homes off the Thornapple River corridor and in the older established neighborhoods sit on slightly higher water tables. Before we frame a wall, we inspect for efflorescence, hairline foundation cracks, and any history of seepage. If anything needs to be addressed, we address it before the drywall goes up — not after.

Cascade Neighborhoods We Serve

Cascade Township proper — full lower-level finishes across the township's established subdivisions and newer build-outs.

Thornapple River-area properties — walk-out lower levels for the riverfront and river-adjacent homes, with extra attention to grade-level moisture management.

Cascade Village area — family-room and entertainment-level finishes for the village-core homes.

Cascade / Forest Hills border — properties along 28th Street and the eastern township line, often larger-lot homes with walk-out potential.

Whispering Woods and surrounding established neighborhoods — full basement finishing and apartment conversions in the mature Cascade subdivisions.