Dirty windows make a beautiful home look tired. They also let in a fraction of the natural light your house was designed for, and over time the buildup of pollen, hard water spotting, and microbial film acid-etches the glass permanently. Most homeowners in Haymarket and Gainesville assume the gray haze on their windows is permanent weathering — in nearly every case it is not. It wipes off cleanly with the right water and the right tool.

Cornerstone Property Care provides professional exterior window cleaning across Haymarket, Gainesville, Dominion Valley, Piedmont Country Club, Heritage Hunt, and Evergreen Country Club. Interior cleaning is available on a case-by-case basis (see below).

Why professional window cleaning

• More natural light — clean glass transmits noticeably more visible light, particularly in north-facing rooms in winter
• Longer glass life — pollen, tree sap, and hard water acid-etch glass permanently if left for years; twice-yearly cleaning prevents the etching
• Curb appeal — clean windows are the single most visible exterior upgrade on any home, cheaper than landscaping and faster than painting
• Resale value — listing photos with hazy windows reduce perceived value; a pre-listing clean pays back many times over
• HOA appearance standards — Dominion Valley, Piedmont, and Heritage Hunt all flag visibly dirty exterior glass on architectural reviews

Our water-fed pole system

For exterior windows above the first floor, we use a professional water-fed pole system. The same approach commercial high-rise window cleaners use, scaled to residential. Here is what that means for you:

• Pure water — tap water is filtered through reverse osmosis and deionization until every dissolved mineral is removed. When pure water dries, there is nothing left behind to streak or spot
• Carbon fiber telescoping pole — reaches three-story dormers, gables, and arch transoms from the ground
• Soft natural-bristle brush head — agitates dirt without scratching the glass or damaging window frames
• No ladder on your home — no risk of dented siding, no boots in the landscaping, no soapy runoff on shrubs, no dropped buckets
• Works in any light — pure water dries clear in sun or shade; traditional squeegee methods streak in direct sun
• Safer for everyone — the leading cause of window cleaner injuries is ladder falls; eliminating ladders eliminates the risk

For ground-floor exterior windows in tight spaces and detail work around frames, we use traditional squeegee, microfiber, and hand tools. Right tool for the job — same streak-free result either way.

What is included

• Glass — exterior of every window on the home
• Frames — exterior wiped down as part of the pole pass
• Exterior sills — pollen, dust, cobwebs cleared
• Glass doors — exterior of French, sliding, storm, and sunroom panels

Available add-ons

• Screen cleaning — removal, brushing, rinsing, and re-installation, priced per screen as an add-on to the base wash
• Interior window cleaning — available on a case-by-case basis; the homeowner needs to be present at the property for the duration of the interior portion of the clean
• Hard water spot removal — for glass with mineral deposits from sprinklers or driplines, additional treatment time required

How often

• Standard residential — twice a year, spring and fall
• Pollen-heavy timing — late April and early October hit the optimal windows for Northern Virginia
• New construction (first 12 months) — quarterly; cement, stucco, and brick dust is harsh on fresh glass
• Listing prep — one deep clean within two weeks of professional listing photography
• After a house wash — exterior windows always need a touch-up after pressure washing splash; we bundle this automatically

Common Northern Virginia window jobs we handle

The custom and semi-custom homes in our footprint have a few specific window challenges. We are set up for all of them:

• Toll Brothers and NVHomes builds in Dominion Valley and Piedmont — 18 to 22 foot great-room glass walls reached from the ground with the pole system, no scaffolding required
• Second-story dormers and Palladian arch windows — geometry that makes ladder access dangerous and slow is straightforward with a pole
• Heritage Hunt townhomes with sunroom additions — combination of standard windows and sliding glass handled in one visit
• Estate homes with deep front porches and arched transoms — pole geometry handles what ladders simply cannot
• Storefronts and small commercial windows — we also handle commercial property care for small offices and HOA clubhouses in the area

Bundles that make sense

Window cleaning pairs naturally with several other services on a single visit:

• Windows + gutter cleaning — same twice-yearly cadence, same pole system, one trip
• Windows + house wash — house washing splashes the glass; we always detail the windows after the wash dries
• Spring estate package — windows, gutters, house wash, and a junk haul on the same half-day visit, one invoice
• Annual recurring — spring and fall windows + gutter combo on a fixed schedule, no need to call us each season