Mold, Mildew & Algae Removal That Kills Growth at the Root

Maryland's humidity makes exterior growth a when, not an if. Green film on north-facing siding, black streaks on the roof, slick algae on shaded concrete. It's all alive, it's all spreading, and rinsing it off just schedules its return. We treat growth with biocidal detergents that kill it completely, so surfaces stay clean for years instead of months.

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Rated 5.0 by DMV homeowners · Fully insured

Kill It, Don't Rinse It

Pressure washing mows the lawn; soft washing pulls the weeds. Our detergent solution penetrates the growth's root structure on siding, roofing, stone, and concrete. That's why soft-washed surfaces stay clean 2-4x longer than pressure-washed ones. And why we guarantee the results.

Where Growth Shows Up (and What It's Doing)

Siding: green algae and black mildew feed on the surface and creep behind panels.
Roofs: black-streak algae eats limestone filler in shingles.
Concrete and stone: algae creates a serious slip hazard.
Decks and fences: mildew accelerates graying and rot.

Our Process

1
Identify. Algae, mildew, mold, lichen, and moss each need a different dwell time and mix.
2
Protect. Landscaping pre-rinsed and covered; pets and kids just stay inside during treatment.
3
Treat. Biocidal soft wash solution applied and allowed to work.
4
Rinse & verify. Low-pressure rinse and a walk-through with you.

The Proof

Before & After

Real results from real DMV jobs. No filters, no tricks.

soft washing a hard-to-reach upper gable, dark mildew streaks removed above the second story, Maryland — Upper Gable: Mildew Streaks Removed

siding and soffit cleaning on an almond vinyl gable above a stone foundation, green algae removed, Maryland — Gable and Soffit: Growth Killed Off

screened porch cleaning, siding, screens and lattice skirting washed and climbing vine cleared, Maryland — Screened Porch: Siding and Screens

mildew removal from vinyl siding on a shaded corner between two chimney chases, Maryland — Shaded Siding: Mildew Killed at the Root

porch ceiling and beadboard cleaning, black mildew removed from the painted boards around the fan, Maryland — Porch Ceiling: Mildew Cleaned Off Beadboard

house washing siding and window trim, green algae cleaned off the sashes and surround, Maryland — Siding and Trim: Green Algae Cleared

Answers

Frequently Asked Questions

Is exterior mold dangerous?

It's mainly a property problem. It degrades siding, roofing, and wood, and shaded algae on walkways is a real slip hazard. Heavy exterior growth can also creep into vents and trim.

Will it come back?

Eventually. Spores are airborne. But because we kill the root structure, expect years of clean instead of one season.

Is the treatment safe for pets and plants?

Yes, once rinsed. We protect landscaping during the job and use biodegradable solutions.

Can I just use bleach from a sprayer?

Straight bleach browns plants, streaks siding, and doesn't have the surfactants to penetrate growth. The mix, dwell time, and rinse matter. That's the job.

How much does it cost?

Growth removal is priced as part of the surface being cleaned. House wash, roof wash, or concrete cleaning rates apply. No separate upcharge.

Pressure washing or soft washing?Which one your surfaces actually need, and why using the wrong one costs you.

Stop feeding the growth. Get a free treatment quote today.

Get My Free Quote Call or text 301-450-2759

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