Window Cleaning in Herndon, Virginia

Fairfax Water's supply to Herndon runs moderately hard to hard, meaning it carries dissolved calcium and magnesium. When irrigation overspray or rainwater dries on glass without being wiped away, those minerals leave behind spots that bond to the surface. Left alone through repeated cycles, this buildup etches into the glass and becomes progressively harder to remove, which is why we treat hard-water spot removal as its own step rather than an afterthought to a standard wash.

Herndon's tree canopy includes oak and pine, both of which release heavy pollen loads through April and May. Pine pollen is large and settles directly onto surfaces like glass, while oak pollen is lighter and recirculates with wind, meaning a single cleaning early in spring often needs a follow-up before the season ends. We time service recommendations around this pattern instead of treating spring as a one-visit job.

Every exterior window service includes screen removal, screen mesh cleaning, and track clearing. Sap, pollen, and mineral residue collect in these areas first and migrate back onto clean glass within days if they're skipped, so we treat them as part of the same job rather than an upsell.

Late spring, after peak pollen has passed, and again in fall before winter rains bring another round of hard-water spotting, covers most Herndon properties well. Homes under heavy tree cover may need a mid-summer sap check as well, which we can assess on-site. Our crews work Herndon regularly, so scheduling is usually available within the week outside the spring rush — and every visit ends with before-and-after photos of the finished work.

Yes. We adjust pressure and solution strength for older glazing and wood-frame windows common in Herndon's established neighborhoods, using hand and pole techniques suited to the frame material rather than a single aggressive method across every property. Our crews work Herndon regularly, so scheduling is usually available within the week outside the spring rush — and every visit ends with before-and-after photos of the finished work.

Lawn Theory was founded by an 8-year U.S. military veteran of Operation Iraqi Freedom, and that background shows up in how the job runs: a defined checklist, no skipped steps, and accountability for the result. Exterior window cleaning done right requires the same discipline as any detail-critical task, and that's the standard we hold on every Herndon property.

Most homes land at $8–$15 per exterior window including screens and sills — a typical 25-window colonial runs $200–$375. Bundling with house washing saves on both. Quotes are written and line-item. Palladians, transoms, and true divided-light windows quote a touch higher for the detail time — the walkthrough counts every pane so the quote is exact. Serving Herndon and all of Fairfax County.