Veteran-owned. Fully insured. Trusted across Arlington, Alexandria, Fairfax, Loudoun & Prince William. We plan your outdoor project like a mission — and build it to outlast us.
Why homeowners choose us for high-value outdoor work.
Three things done exceptionally well for Northern Virginia homeowners: outdoor living built on engineered foundations, exterior cleaning that restores curb appeal, and landscaping that keeps it all sharp.
Fertilization, aeration, sod, mulch, and landscape care that keeps the sharpest lawn on the street.
Explore Lawn Care
Patios, decks, outdoor kitchens, fire pits, and pergolas — designed around your life, built on engineered bases that outlast Virginia freeze–thaw.
Explore Outdoor Living
House washing, roof cleaning, and pressure washing that strips grime, not warranties. Soft-wash safe on every surface.
Explore Exterior CleaningWe are not a one-and-done crew. We treat every property like a build site: measured, planned, executed, inspected. That is the Theory — the proof is in the yard.
On-time crews, clean job sites, zero shortcuts. The details are where discipline shows.
Products and practices safe for kids, pets, and the Chesapeake watershed.
Same crews, same faces — accountable to neighbors, not a franchise office.
Quotes in 24–48 hours. We show up when we said, and we answer when you call.
One expert plan for your property — then disciplined execution. Here is how it works.
Walk your property with a real expert. Straight answers and a custom assessment, free.
A line-item plan with firm pricing. No surprises, no upsells, no pressure.
A disciplined crew executes on schedule — and we do not call it done until you do.
Do not take our word for it — here is what your neighbors say after working with us.
My backyard never looked better! Lawn Theory designed and planted everything. Super friendly team, highly recommended.
We hired Lawn Theory for pressure washing and landscaping. It is like we have a brand new home. Five stars!
They built our patio and outdoor kitchen, and now it is everyone’s favorite spot. Fantastic work.
Size, base engineering, material tier, and site access set the price — in that order.
Short answer: September through mid-October — fall gives seed warm soil and cool air.
Single services start at $199 and whole-house exterior packages start at $649.
From Arlington rowhouses to Loudoun estates, we bring the same disciplined standard to every property line. Pick a county to explore the areas we serve.
Get My Free EstimatePopular Areas in Fairfax County
Do not see your town? We likely serve it — just ask.
Book a free, no-pressure on-site walkthrough and get a written, line-item quote in 24–48 hours. Veteran-owned, fully insured, 100% local.
“My backyard never looked better! Lawn Theory designed and planted everything. Super friendly team, highly recommended.”
Jamie W. · Vienna, VA
“We hired Lawn Theory for pressure washing and landscaping. It is like we have a brand new home. Five stars!”
Sarah M. · Arlington, VA
“They built our patio and outdoor kitchen, and now it is everyone’s favorite spot. Fantastic work.”
Mark D. · Fairfax, VA
Drop your email for seasonal tips and to book your free walkthrough.
Lawn Theory brings precision and pride to high-end outdoor living across Northern Virginia — engineered patios and hardscapes, precision lawn care, and surface-safe exterior cleaning. Measured, planned, executed, inspected.
