Fenton is the part of Genesee County where the ground stops being flat. Lake Fenton alone covers 845 acres, the largest lake in the county, and there's a lot more water south and west of it. Build houses on ground that slopes toward water and you get walkout basements, split-level slabs, and lower levels that were designed from the start to be lived in rather than stored in.
That housing is genuinely different from the rest of the county, and it needs a different install plan. Not a harder one. Just one where somebody thought about it before drilling.
A walkout is not a free pass
The common assumption is that a walkout must test lower, because one wall is above grade and there's a door letting air through. It does change how the lowest level breathes. What it doesn't change is the slab, which is still poured on soil, and the soil is where radon comes from.
Walkouts and daylight basements test above 4.0 pCi/L often enough that assuming otherwise is just guessing. Split-level slabs add a second wrinkle: the lowest level may sit at two different depths, and suction that reaches one section doesn't automatically reach the other. That's a diagnostic question, answered on the walkthrough, not something to find out from a disappointing retest.
On a lake home, the pipe route is part of the job
Most houses have one elevation nobody looks at. A lake home doesn't. The water side is the reason the house exists, and running a white pipe up it would be its own kind of damage.
So the route gets planned first. The riser goes up the road side, through the garage, or up a utility chase into the attic with the fan mounted out of sight and out of living space. Exterior runs get schedule-40 pipe painted to match the siding. On older cottage properties that have been added onto over the years, we also check what is actually under each section, because a place that started as a summer cottage and grew twice can easily be part slab, part crawlspace, part full basement, and each of those wants something different.
The guarantee doesn't move for any of it: below 4.0 pCi/L, designed for under 2.8, verified by a post-install test before we call the job finished.
Frequently asked
Will the pipe be visible from the lake side of the house?
Not if we plan it. On a lake home the water-facing elevation is the one that matters, so the riser goes up the road side, through a garage or utility chase, or inside to the attic. Where an exterior run is genuinely the only option, it's schedule-40 pipe painted to match your siding, and it reads as a downspout from thirty feet away.
Our basement walks out, so one wall is above ground. Doesn't that mean lower radon?
Not reliably. A walkout changes how the lowest level breathes, but the slab's still sitting on soil and that's where radon comes from. Walkouts test high often enough that we'd never assume one is fine. Test it, then you know.
Fenton is one of the places we work most, but the guarantee is the same everywhere in the county. See how the systems work, what they cost, or send a test result for a firm quote.