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Pressure Washing
Professional Pressure Washing Services
Lawn Theory pressure washes driveways, walkways, patios, decks, and commercial lots across Northern Virginia — matching the correct PSI and technique to each surface, from hot/cold pressure washing on concrete and pavers to gentle soft-wash chemistry on siding, fencing, and wood decking. Every quote is written, line-item, and delivered within 24–48 hours of your walkthrough.
The Short Answer
Professional pressure washing in Northern Virginia is typically priced per square foot: driveways run about $0.15–$0.35/sq ft, patios and walkways about $0.20–$0.40/sq ft, decks about $0.35–$0.60/sq ft, and whole-house exterior packages (siding + driveway + walkways) often bundle for $400–$800 depending on square footage and buildup severity. Hard flatwork like concrete, pavers, and brick can safely take true pressure washing at higher PSI, while siding, fencing, and wood decking get a soft-wash approach — low pressure plus the correct detergent — so the surface gets clean without cracking, etching, or forcing water where it doesn't belong. Most driveway or patio jobs finish in two to four hours; full commercial lots and multi-surface packages can run a full day. Every quote is written, line-item, and delivered within 24–48 hours of your walkthrough.
What's Included
Every Hard Surface, Cleaned Correctly
Our pressure washing service covers the exterior hardscapes that take the most abuse from Northern Virginia weather — each surface gets the PSI and technique it actually needs, not a one-size-fits-all blast.
- Driveways — concrete, asphalt, and paver driveways stripped of oil stains, tire marks, and algae film.
- Walkways & sidewalks — front walks, side paths, and pool decks cleared of mildew and clay staining.
- Patios — concrete, paver, and flagstone patios brightened and restored for entertaining season.
- Wood & composite decks — soft-washed to remove mildew and gray weathering without splintering boards.
- Siding — vinyl, brick, stucco, and fiber-cement soft-washed with biodegradable detergent.
- Fences — wood, vinyl, and aluminum fencing cleared of mildew, dirt, and green algae streaking.
- Retaining walls — block, stone, and timber walls freed of mud staining and moss buildup.
- Commercial lots — parking lots, storefront entries, and walkways for HOAs and property managers.
Surfaces We Pressure Wash
Concrete and pavers can take true pressure washing at higher PSI to lift oil stains and ground-in algae, while brick needs a gentler touch to protect mortar joints. Wood decking gets a soft wash — low pressure plus the correct cleaner — so grain isn't torn up or splintered, and vinyl siding gets the same soft-wash approach used on the rest of the house exterior so panels never crack or trap water behind them.
What drives your price and timeline: square footage (more surface, more time), buildup severity (oil stains and years of algae cost more than routine maintenance), surface type and material (each gets its own pressure and chemistry), and access (tight side yards, steps, and landscaping add setup time). Spring and fall are the best pressure-washing seasons in Northern Virginia — spring clears pollen and winter grime, fall gets hardscapes ready before holiday guests arrive.
How We Work
Our Pressure Washing Process
Consultation
We walk your property, identify each surface material, oil stains or algae buildup, and any landscaping or access concerns before quoting.
Proposal
A written, line-item quote within 24–48 hours — surface-specific method, price tier, and scheduling options.
Wash & Rinse
Correct PSI and detergent for each surface, applied with proper technique, then a thorough rinse — protecting plants, pets, and adjacent surfaces.
Local Knowledge
What Northern Virginia Hardscapes Actually Deal With
- Pollen film builds up fast on hardscapesHeavy spring oak and pine pollen coats driveways, walkways, and patios every year, staining lighter-colored concrete and pavers within days if it isn't rinsed off before it bonds to the surface.
- Humidity feeds algae on shaded concrete and paversNoVA's humid summers keep shaded patios, north-facing walkways, and pool decks damp longer than sun-exposed areas, which is exactly what green and black algae need to establish and spread.
- Clay-based soil leaves stubborn mud stainingNorthern Virginia's red clay soil tracks onto driveways, walkways, and patios after rain and lawn work, and it bonds into concrete pores if it isn't pressure washed off within a season or two.
- Winter road salt leaves a chalky residueDe-icing salt tracked in from the driveway and street builds a dull, chalky film on concrete and pavers by late winter — an early-spring wash resets the surface before it's ground in further.
- HOA exterior-appearance standards are commonMany communities across Fairfax, Loudoun, and Prince William counties require driveways, walkways, and siding to be kept free of visible algae, mold, and stubborn staining as part of community appearance standards — we can provide a wash date and photos if your HOA asks for proof of compliance.
- Spring and fall are the best washing windowsSpring clears winter salt residue and early pollen before it bonds; fall clears summer algae growth and prepares hardscapes for holiday guests and winter weather.
Why Lawn Theory
Why Homeowners Choose Us For Pressure Washing
Right PSI & Technique Per Surface
Hot or cold pressure washing for concrete and pavers, soft wash for siding, decking, and fencing — never one machine setting for every surface.
Eco-Friendly Detergents
Biodegradable cleaning solutions break down algae, mildew, and stains without harming landscaping, mulch beds, or nearby lawn.
Licensed & Insured
Every crew and every job is fully licensed and insured in Virginia, so you're covered from walkthrough to final rinse.
Satisfaction Guarantee
If buildup remains visible after your wash, we come back and address it — no extra charge, no hassle.
Pressure Washing Across Northern Virginia
Pressure washing and soft washing across Arlington, Alexandria, Fairfax, Loudoun & Prince William counties. Pick a county to see where we work.
Get My Free EstimatePopular Areas in Fairfax County
Do not see your town? We likely serve it — just ask.
What Neighbors Say
Trusted on Driveways and Patios Like Yours
“Our driveway had years of oil stains and algae we thought were permanent. The crew pressure washed it in about three hours and it looks brand new — no damage to the paver joints either.”
“They explained why they'd soft-wash our deck instead of blasting it with a wand, and I appreciated that. Came out clean without a single splintered board.”
“Written quote same day, on time for the appointment, and our HOA letter about the driveway staining is officially resolved. Would use again for our patio next.”
Complete Your Exterior
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Questions
Pressure Washing — Common Questions
What's the difference between pressure washing and soft washing?
Pressure washing uses high-force water alone and belongs on hard flatwork like concrete, pavers, brick, and stone that can handle it. Soft washing uses low water pressure combined with biodegradable detergents to kill algae, mildew, and mold on siding, wood decking, and fencing without cracking panels or tearing up wood grain. We match the method to the surface on every job — hard surfaces get true pressure, softer materials get the gentler chemical approach.
How much does pressure washing cost in Northern Virginia?
Pricing is typically per square foot: driveways run about $0.15–$0.35/sq ft, patios and walkways about $0.20–$0.40/sq ft, and decks about $0.35–$0.60/sq ft. Whole-house exterior packages that bundle siding, driveway, and walkways often run $400–$800 depending on square footage and buildup severity. Every quote is written and line-item, delivered within 24–48 hours of your walkthrough, with the exact price depending on surface type, square footage, and access.
How often should I have my driveway or patio pressure washed?
Most Northern Virginia homes benefit from a pressure wash once or twice a year — spring clears winter salt residue and early pollen, and fall resets hardscapes before the holidays. Shaded patios, north-facing walkways, and surfaces near trees may need more frequent attention since they hold moisture longer and grow algae faster than sun-exposed areas.
Is pressure washing safe for my plants and pets?
Yes. We use biodegradable detergents and pre-wet or cover sensitive plants and mulch beds before applying any cleaning solution, and the rinse step dilutes and washes away residual detergent. We recommend keeping pets indoors during the service and until surfaces are fully rinsed and dry, simply as a precaution.
Can pressure washing damage my concrete or pavers?
Not when it's done correctly. Using too high a PSI or the wrong nozzle angle can etch concrete or blast sand out of paver joints, which is why we match pressure and technique to your specific surface and re-sand paver joints if needed after the wash. Our approach is designed to clean thoroughly without damaging the surface underneath.
Will pressure washing satisfy my HOA's exterior-appearance requirements?
In most cases, yes. Many communities across Fairfax, Loudoun, and Prince William counties require driveways, walkways, and siding to be kept free of visible algae, mold, and mildew staining as part of community appearance standards. We can provide the service date and before/after photos if your HOA requests documentation of compliance.
What's the best season for pressure washing in Northern Virginia?
Spring and fall are the two best windows. Spring clears winter road-salt residue and early pollen film before it bonds to concrete and pavers; fall clears summer algae growth and gets hardscapes ready before holiday guests and winter weather arrive. Extreme summer heat and winter freezing temperatures are best avoided for detergent-based cleaning.
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Pressure Washing Price Calculator
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Written, line-item quotes in 24–48 hours. No pressure, no generic ballparks.