Basement Bathroom Additions in Chesterfield, Missouri

Chesterfield homes and this kind of project

Our first visit for a basement bathroom in Chesterfield is spent on the rough-in stubs, the depth of the main drain and whether an ejector pit already exists, which tells us how large 1970s to 1990s two-stories and newer estate homes to the west were put together.

The housing stock here: large 1970s to 1990s two-stories and ranches in established subdivisions, with newer estate homes to the west.

Most boom-era basements have a three-pipe rough-in in one corner, sometimes bumped or filled with debris, which we clear and test.

Foundations and basements in Chesterfield

Many Chesterfield basements were finished in the 1980s and are now on their second life. We strip them, fix insulation and wiring and rebuild to current taste. Walkouts are common on the rolling terrain.

Homes built in Chesterfield between the late 1970s and the 2000s nearly all have full poured basements, and a large share were finished once already by an owner or handyman, often without permits. We open a few walls before quoting, because what is behind them decides whether this is a refresh or a rebuild.

What is included

For Chesterfield homeowners our basement bath scope covers drain location and camera inspection, any slab cutting and re-pour, ejector basin where needed, supply and vent piping, a ducted exhaust fan on a timer, GFCI-protected circuits, waterproofed shower walls, tile, vanity, toilet and glass.

We take on basement bathroom work across Chesterfield, from neighborhoods off Clarkson, Baxter and Olive to Chesterfield Valley commercial district and the Wild Horse Creek Road corridor.

What we watch for

Ejector basins in older Chesterfield finishes are sometimes unsealed or unvented, which is where sewer smell in a basement usually comes from. If you already have one, we check the lid gasket and vent connection as part of our visit.

Working on generous, rolling lots with mature trees, as we do in Chesterfield, we plan access for a plumber, an electrician, a tile setter and a finish carpenter before the first delivery arrives.

Permits and approvals in Chesterfield

For a basement bathroom at a Chesterfield address, the paperwork goes to Chesterfield's planning department together with the St. Louis County permit process. Expect underground plumbing, rough plumbing, electrical and final inspections.

Interior work like this normally does not involve subdivision trustees, though dumpsters and working hours sometimes do, and we check.

Schedule and getting to you

On site, a basement bathroom in Chesterfield generally runs three to five weeks.

Chesterfield is down I-64 and over the Daniel Boone Bridge, just under half an hour from our Wentzville base. We plan crew days and deliveries around that drive so you get full working days on site.

What moves the price in Chesterfield

We price basement bathroom additions in Chesterfield from a site visit, not a square-foot figure. These are the items that change the number.

• Ejector pit and pump if gravity drainage is not available.
• Shower type: a prefabricated base with tiled walls costs far less than a fully tiled curbless shower with glass.

More detail

Our step-by-step method for this work, and the factors that move its price, are laid out on the main basement bathroom additions page. More about the area is on our Chesterfield page.