Since 1989 · Front Royal, VACall540-514-5916
Vinyl siding on a house gable covered in green and black mildew streaks
The same gable wall after washing, clean tan siding

Power washing in Front Royal since 1989

House and roof washing, driveways, decks, fences, storefronts, and truck fleets across the northern Shenandoah Valley, Loudoun, and Fauquier. Owner-operated and insured.

Get a free quoteor call 540-514-5916

Free quotes, usually from a few photos. We reply within 24 hours.

Chem-Clean's silver pickup towing the enclosed trailer that carries the water tank

Since 1989

Front Royal, VA. Our own rig and our own water, with the owner on every job.

The Northern Virginia Daily 2023 Best Of badge, Front Royal and Warren CountyThe Northern Virginia Daily 2025 Best Of badge, Front Royal and Warren County

Best of Front Royal & Warren County

The Northern Virginia Daily, 2023 and 2025.

5 stars on Google, Facebook & Yelp

  • Insured. Certificate of insurance on request.
  • Satisfaction guaranteed. If we missed anything, tell us and we'll come back and make it right.
  • Free quotes. Most jobs priced from a few photos, within 24 hours.

What we wash

Every photo on this page is our own work. Drag the line to compare before and after.

House washing and soft washing

Algae and mildew grow wherever the sun doesn't reach: the north wall, the side facing the woods, under the eaves, and below any gutter that drips. They show up as green streaks, black specks, and a gray film that dulls the color of the siding.

We wash vinyl, brick, stucco, fiber cement, painted wood, aluminum, and log siding, and each one gets the method it can take. Too much pressure cracks vinyl, forces water in behind it, and roughs up log siding, so most houses are soft washed and only the hardest surfaces see high pressure. Brick isn't one of them. On brick, we start at 100 psi with a wide fan tip and keep it at 400 psi or less.

You don't need to be home. We bring our own water, and we'll use your outside spigot if you have one.

Vinyl siding on a chimney chase streaked with green algae
The same chimney chase after washing, even tan siding
Log siding on a gable darkened by weathering and grime
The same log gable after washing, warm natural wood
White vinyl siding between two windows, gray with mildew along every lapBefore
The same wall after washing, clean white siding around the windowsAfter
Corner of a white vinyl shed, both walls gray and streaked with mildewBefore
The same shed after washing, clean white siding on both wallsAfter

Roof cleaning

The black streaks on a shingle roof are algae, not dirt. They're usually worst on the north and shaded sides, and the wind carries the spores from one roof to the next.

High pressure strips the granules that protect a shingle, so we clean roofs by soft washing: low pressure and a solution that kills the growth at the root. We clean asphalt shingle, metal, slate, and cedar shake roofs, and we take off moss and lichen along with the algae.

A clean roof usually stays clean for most of the year, often all of it. We recommend a yearly wash.

Ranch house with a streaked gray roof and dull siding, a worker on the roofBefore
The same ranch house after the roof and siding were washedAfter

Concrete and driveway cleaning

Concrete is porous, so mildew, algae, red clay, tire marks, and leaf stains soak into it. A light gray driveway darkens over a few years, and a shaded walk turns green and slick.

Concrete can take real pressure, so this is where pressure washing does its best work. On driveways and patios we use a surface cleaner, which leaves an even finish instead of the stripes a wand leaves behind. We wash driveways, walks, steps, ramps, and patios, along with brick, pavers, and flagstone.

Oil stains vary. Some come out completely and some only lighten, depending on the stain.

Concrete steps and front walk darkened with grime
The same steps and walk after washing, light gray concrete
Brick entry steps dulled with dirt and mildew
The same brick steps after washing, bright red brick and clean mortar
Concrete patio below a pair of glass doors, green with algae around a drain grate, with steps belowBefore
The same patio and steps after washing, even tan concrete around the drainAfter

Deck and wood cleaning

Bare wood turns gray in the sun and green in the shade, and either way it gets slick when it rains.

Wood is softer than it looks. Too much pressure leaves boards fuzzy or gouged, so we match the pressure to the wood. We wash wood decks, steps, and railings, and composite decks too. The deck photo below was taken mid-job, washed on one side and not yet on the other.

Weathered gray wooden steps with green growth
The same wooden steps after washing, fresh golden wood
Pressure-treated deck boards, the left half still gray and the right half washed to fresh wood
White porch stair railing and balusters coated green with algaeBefore
The same railing after washing, clean white rails and balustersAfter
Gray, weathered wooden steps between chain-link gate postsBefore
The same steps after washing, fresh brown woodAfter

Fence cleaning

White vinyl fence shows every streak of green and black, usually starting on the side that faces the woods or the side the sprinklers reach. Panels and gates wash back to white.

We wash wood fences too, with the same care we give a deck.

White vinyl privacy fence streaked with green and black growth
The same fence after washing, clean white panels

Gutter cleaning and rust stain removal

Packed gutters overflow, stain the siding, soak the fascia, and dump water next to the foundation. We clean them out, flush the downspouts, and wash the outside of the gutters on one-, two-, and three-story homes.

Orange stains are iron. Well water leaves them below spigots and sprinklers, and metal caps and flashing weep rust down stone and brick. Pressure alone won't lift rust, so we use a dedicated rust remover that takes it off most surfaces.

Stone chimney with orange rust streaks running down from the cap
The same stone chimney after rust stain removal
Painted floor with a dark rust streak running out from under a stone column
The same floor after rust stain removal, still wet from washing
Gutter packed with dead leavesBefore
The same gutter cleared outAfter

Not sure what it needs? Text a few photos to 540-514-5916. We'll reply within 24 hours with a free quote.

Get a free quote

Soft washing or pressure washing?

Most people call all of it power washing. There are two different methods, and we use both.

Pressure washing

High-pressure water that scours grime off hard surfaces. It's the right tool for concrete, brick walks, pavers, and most flatwork.

Soft washing

Low pressure with a cleaning solution that kills algae, mildew, and moss where they grow. It's the safe way to clean siding, painted surfaces, and roofs.

We use cleaning solutions only when a job calls for them. You don't need to know which method you want. Tell us what's dirty and we'll choose the right one.

Commercial and fleet washing

Our rig carries its own water tank and hose reels, so we can set up anywhere on your property. We've washed gas stations, pharmacy lots, restaurants, and apartment buildings, and whole fleets on the customer's own yard.

Storefronts, gas stations, and parking lots

Gum, fuel and oil drips, tire marks, and the black film that builds up at the doors. We wash the sidewalk, the entry, and the lot.

Restaurants

Grease tracks out from the kitchen door, and drive-through lanes and entries collect spills. We wash all of it, dumpster pads included.

Apartments, HOAs, and property managers

Siding, walks, breezeways, and stairwells on multi-family buildings. We work directly with property managers and HOAs.

Fleet washing

Semis, trailers, box trucks, buses, and equipment, washed on your yard or lot so nothing has to leave the property. Wheels included. We wash the postal delivery fleets at the Woodstock, Strasburg, Middletown, and Maurertown post offices.

Chem-Clean rig beside a restaurant, the lot wet from washing
Chem-Clean water tank trailer set up at a gas station storefront at dawn
White shuttle bus with a dirty, streaked side
The same shuttle bus after washing, bright white
Chem-Clean rig and pickup truck parked in a pharmacy parking lot
Aluminum semi-truck wheel after cleaning

What businesses ask us

  • Hours: We work around your schedule, early, late, or on weekends, so you can stay open.
  • Schedules: One-time or recurring, as often as you need.
  • Water: We bring our own if there's no spigot on site.
  • Paperwork: Insured. Certificate of insurance on request. We invoice businesses.

What to expect

  1. Tell us what needs washing

    Send the form on our contact page, or call or text 540-514-5916. A few photos of the job are usually enough to price it.

  2. Get your free quote

    We reply within 24 hours. For an unusually complex job, we'll come out and look at it first. Quotes are always free.

  3. Before wash day

    Close windows and doors, and move cars, grills, furniture, and potted plants out of the way. Keep pets inside while we work. You don't need to be home.

  4. Wash day

    We arrive with our own water. If you have an outside spigot, we'll use it. Plants get wet down before we start and rinsed when we're done.

  5. Payment and our guarantee

    Pay by check, card, cash, Zelle, or Venmo. Satisfaction guaranteed. If we missed anything, tell us and we'll come back and make it right.

Who does the work

Chem-Clean Mobile Power Wash Inc. was incorporated in Virginia on September 1, 1989, and it is still based in Front Royal. The owner does the work himself, usually with his wife, so the person who quotes your job is the person who washes it.

Everything we need rides on the rig: a pickup and a trailer with its own water tank and hose reels. That's how the same crew can wash a house on a hillside in Warren County and a row of semis on a truck yard.

The Northern Virginia Daily 2023 Best Of badge, Front Royal and Warren CountyThe Northern Virginia Daily 2025 Best Of badge, Front Royal and Warren County

The Northern Virginia Daily gave Chem-Clean its Best of Front Royal & Warren County award in 2023 and again in 2025. It's the paper's yearly community award for local businesses that go above and beyond.

In the community

  • Place card reading: The Logan Maiatico Foundation welcomes Chem-Clean Mobile Power Wash as a Diamond Level Sponsor

    Logan Maiatico Foundation

    Chem-Clean was a Diamond Level Sponsor of Logan's 21st Birthday Bash. The foundation honors Logan Maiatico and gives Live Like Logan scholarships to Skyline High School graduates.

    About the foundation

  • A child's handwritten card in colored marker: Dear Chem Clean, thank you for donating money for us to go to Kings Dominion. You are a legend.

    Garland R. Quarles Elementary

    We helped fund the 4th grade class's trip to Kings Dominion, and the whole class sent thank-you cards.

  • Navy Blue Jays team shirt with Chem Clean Mobile Powerwash under the team name and a Little League patch on the sleeve

    The Blue Jays

    Our first team sponsorship: a Little League team with the Chem-Clean name on the front of its shirts.

Where we work

We're based in Front Royal, in Warren County. Most of our work is in the northern Shenandoah Valley, from Front Royal up through Winchester, and we regularly cross the Blue Ridge into Loudoun and Fauquier.

Humid summers, hardwoods over the roofline, and houses set against shaded hillsides give algae and mildew everything they need. Around here, most houses are due for a wash every year.

Shenandoah Valley

Loudoun, Fauquier, and Manassas

Don't see your town? Ask. There's no travel fee and no minimum job charge.

What customers say

5.0 stars on Google (7 reviews) · 5.0 stars on Facebook (27 reviews) · 5.0 stars on Yelp

A homeowner and a man in a Chem-Clean cap stand together outside on a sunny day, about to talk to the camera
Her house, just washed, in her own words

  • Amazing results! My house has never been washed and I wasn't sure it would come clean but it looks brand new. I will recommend to everyone!

    Mike, Google review,

  • We recently hired this company to power wash our home's siding, clean the windows, and clean the gutters, and we were very pleased with the results. The crew arrived on time, was courteous and professional throughout the entire job, and completed all the work as promised.

    The siding, windows, and gutters all look great, and they took care to leave the property clean when they finished. Their pricing was fair, and the quality of the work exceeded our expectations.

    I would gladly recommend this company to anyone looking for reliable, professional exterior cleaning services.

    Bernie, Google review,

  • The team at Chem-Clean did a great job on our house. Easy to schedule and make payment. We agreed to an appointment while we were at work and they did not disappoint. All the exterior were cleaned and I was amazed at how they came out. They had not been cleaned in a long time, a few areas were the sun does not hit were really bad too. We live on a well water supply but Chem-Clean brings their own water which is what I wanted. They used a soft clean technology instead of high pressure water, so it was gently on our vinyl siding too. Nothing was damaged, same with all our plants and yard decorations. I would definitely be using them again. If you are looking for a family owned, operated and local business to wash your house, give me a call.

    Caleb, Google review,

  • If you have ever lived through a renovation, the dirt stays with you after the contractor leaves. I hired Chem-Clean to clean our large windows, inside and out. These were not normal sized windows, but Bryan and his cousin, Jimmy, did an outanding job, leaving no streaks, smears, or specs. Our windows were so clean that our vistas improved after losing the sheetrock dust and dirt collected during two years of renovation.

    William, Google review,

  • They were prompt, had a great price and did a fantastic job. Everything is sparkling clean

    Kathryn, Google review,

  • We use Chem Clean for house washing and window cleaning. Excellent service and pricing.

    Vallie, Google review,

  • Great customer service!

    Cari, Google review,

Questions people ask

How much does power washing cost?

It depends on the size, the number of stories, the surface, and how much is growing on it, so we price each job. Quotes are always free, there's no minimum job charge, and most jobs can be priced from a few photos texted to 540-514-5916.

Do you soft wash or pressure wash?

Both. We pick whichever is best for the surface. Roofs are mostly soft washed, and concrete usually gets pressure.

Is it safe for my plants, pets, and kids?

Yes. We use cleaning solutions only when the job needs them, we wet down plants before we start and rinse them after, and once everything is dry it's safe for pets and kids.

Do I need to be home?

No, you don't need to be home.

Do you need my water?

We bring our own water in the trailer's tank. If you have an outside spigot, we'll use it, which saves a trip to refill.

Will the black streaks on my roof come back?

Eventually. The algae spreads on the wind. A clean roof usually stays clean for most of the year, often all of it, which is why we recommend a yearly wash.

How often should I have my house washed?

Once a year for most houses, roofs, and decks around here.

Can you get rust and oil stains out?

Rust, yes: we use a rust remover that takes it off most surfaces. Oil stains depend on the stain. Some come out and some only lighten.

Are you insured?

Yes. We're insured and can send a certificate of insurance on request.

What if you miss a spot?

Satisfaction guaranteed. If we missed anything, tell us and we'll come back and make it right.

How do I pay?

By check, card, cash, Zelle, or Venmo. We can invoice businesses.

What months do you work?

All year. Call or text 540-514-5916 and we'll get back to you within 24 hours.

Do you work for businesses?

Yes: storefronts, parking lots, restaurants, apartment buildings, HOAs, and fleets. We work around your hours, come as often as you need, and invoice businesses.

Is there anything you don't do?

Nearly all of our work is outside: soft washing, pressure washing, windows, and gutter clean-outs. If you need something specific done inside, ask. We don't do painting.

Request a free quote

Tell us what needs washing and where. We'll reply within 24 hours with a price, and there's no minimum job charge.

Get a free quote

Or call or text

540-514-5916

Open year-round. We get back to you within 24 hours.

Get a free quote