What Are Those Black Lines Under My Doors and Around Baseboards?

Filtration Lines Around Baseboard

If you have light colored carpet, you may have experienced dark lines appearing around your doorways and along baseboards.  These dark lines are called filtration soiling because it comes from air passing through the carpet as it attempts to get through the crack between the carpet and the baseboard or under a closed door.

As air passes through the edge of the carpet pile, this microscopic soiling is deposited there (hence the term filtration soiling). This occurs over a significant period of time and is not noticed until a buildup has occurred.

This type of soiling is difficult to remove because the soil particles are so fine that they penetrate deep into the carpet pile, sometimes into the backing of the carpet.

Can it be removed? Sometimes. With specialized products, time and effort, reasonable results may be achieved. A regular carpet cleaning will not eliminate these lines.

To help prevent filtration soiling, vacuum the edges of your carpeting on a regular basis. Also, be sure to change your AC filters monthly and reduce the burning of candles and incents. When cleaning these areas, be careful around the tack strip on the edge of the carpeting, it could nick your fingers!

Tru-Clean is a Certified Partner with the prestigious Institute of Inspection, Cleaning and Restoration Certification (IICRC) and the International Carpet & Rug Institute.  In addition, we are A+ rated with the Better Business Bureau and a four-year-in-a-row-winner of the coveted Angie’s List Super Service Award.

For all of your carpet, tile, upholstery or mattress cleaning you can depend on our experienced technicians to deliver a phenomenal service.

For more information about Tru-Clean please visit us online at www.trucleansurfacecare.com or call us anytime at 239-541-4888 in Lee County, 239-206-1935 in Bonita Springs, Naples or Marco Island or 941-621-2198 in Punta Gorda or Port Charlotte.


Dark lines on carpeting around baseboards, dark lines on carpeting, carpet cleaning, tile cleaning, upholstery cleaning, mattress cleaning

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