A basement in your Oak Brook home can carry a full bath, a wet bar and real living space, and we plan the plumbing and wiring before the walls close.
We finish basements by fixing the water first, then framing, insulating, wiring and plumbing, then closing everything in with drywall, ceilings, flooring, doors, trim and paint. Walls stand on treated bottom plates, and the rough-in for a bath or wet bar goes in while the framing is open and the inspector can see it. A full design-and-build basement runs under our ONIT Restoration brand, the same company with a crew that does basements all day. ONIT Solutions takes on repairs to an already finished basement, partial finishes and single trades such as framing or drywall.
Oak Brook is a regular stop for us, and the crew comes in on I-88, I-294, Route 83, 22nd Street and York Road. The village sits in DuPage County next to Oakbrook Terrace, Hinsdale and Elmhurst, and large lots are part of its character. If your basement is a big one, the plan matters more than the square footage. A bathroom placed close to the main stack or an existing ejector pit costs less to plumb than one on the opposite side of the room, so we map where the drains can run before we draw a single wall.

Seepage, sump function and the discharge line get checked and fixed before we cover anything.
Drain, vent and supply lines for a basement bath, tied into a gravity drain or an ejector pit depending on where the main line sits.
A bar sink, a dedicated circuit for a fridge or ice maker, and counter outlets where code calls for them.
Treated bottom plates, insulated outside walls and framed soffits that leave room around ducts and pipes.
If a guest room is part of the plan, code requires an egress window, and we cut the foundation, set the window and build the well.
Drywall, ceilings, flooring, interior doors, trim and paint, inspected and finished.
We start with an on-site visit to check for moisture and see where the plumbing can go, and the written estimate lists each trade on its own line. If you add a room or upgrade a finish after we start, that change gets priced in writing and waits for your sign-off. The crew works in the order the inspections require, so rough-in is approved before insulation and drywall cover it. We close with a walkthrough of the finished space and a punch list we work through before we leave.
Call or text (815) 585-1750 and we will walk your Oak Brook basement and map out the plumbing with you.
Call or text (815) 585-1750
Email matt@onitcc.com