Problem · Black streaking

Black Streaks on House Siding in Waldorf, MD

Serving the DMV — Washington DC, Prince George’s, Montgomery, Howard and Baltimore counties, Northern Virginia, Waldorf and Southern Maryland.

Gutter-line streaking

The classic tiger-stripe pattern under gutters and downspouts.

Treated at the root

Solution kills the organism rather than just removing the color.

Gutter faces included

The gutter exterior itself is cleaned, since it is the source of the run-off marks.

No pressure damage

Low-pressure application protects seams, trim and any painted surfaces.

Common questions

Is black streaking dangerous?

It is an appearance and maintenance issue rather than a structural one, but organic growth holds moisture against the wall, so it is worth removing.

Why does it come back?

Spores land constantly in this climate. Treating rather than blasting slows the return considerably — usually about a year.

Can I do it myself with bleach?

You can damage plants, streak the siding and reach only the first storey. A soft wash covers the whole wall evenly with plant protection built in.

Areas we serve

Waldorf · White Plains · La Plata · Bryans Road · Accokeek · Fort Washington · Indian Head · Hughesville · Charlotte Hall · Clinton · Upper Marlboro · Brandywine · Baltimore City · Baltimore County · Montgomery County · Howard County · Washington DC · Alexandria VA · Northern Virginia and the surrounding Southern Maryland, Baltimore and Northern Virginia communities.

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