filtration soiling dark lines baseboards

Vacuum the edge with a crevice tool first. Seal the gap under the baseboard if you can reach it — that's the actual cause.

The method

1. Vacuum the edge with a crevice tool first.
2. Don't scrub. You'll fuzz the fiber and make the line more visible.
3. Seal the gap under the baseboard if you can reach it — that's the actual cause.
4. Change your HVAC filter more often.
5. Accept that it needs specialist treatment.

Why the common fix backfires

That's filtration soiling. Air is being pulled through the carpet edge and the fiber is acting as a furnace filter. The particles are microscopic and lodged deep, so surface scrubbing does nothing.

The honest limit

Filtration soiling often only partially reverses even with professional treatment. We tell you what we expect to get before we start, not after.

Serving Galt, Lodi, Elk Grove, Herald, Wilton, Sacramento. Call (916) 919-7642.