Proudly Serving Charleston & Surrounding Areas
Preferred Services Group provides commercial window cleaning in Charleston, SC and surrounding counties. Service includes interior and exterior glass cleaning, frame and sill wiping, screen cleaning, and high-rise reach work for storefronts, office buildings, medical facilities, and industrial properties. We use professional squeegees, deionized water systems, and streak-free solutions to deliver crystal-clear results. One-time, monthly, quarterly, and annual schedules available. Call (843) 478-2114.
Crystal-Clear Windows That Make Your Business Shine
First impressions matter. Smudged, streaked, or grimy windows tell customers your business doesn't sweat the details — and that's a message no medical office, retail storefront, or corporate building can afford to send.
Our window cleaning crews use professional-grade squeegees, lint-free cloths, and pure-water systems to deliver flawless results on every pane — interior and exterior. We handle ground-level glass, upper-floor windows with extension poles, and partner with certified high-reach specialists for taller buildings.
Whether you need a one-time deep clean before a big event, quarterly maintenance, or a regular monthly schedule, we tailor our window service around your facility's needs and customer traffic.
What's Included
Streak-Free Results
Professional squeegees and lint-free finishing wipes leave glass crystal-clear without streaks, drips, or residue.
Interior & Exterior
Inside and out — we clean both sides of every window, plus frames, sills, and tracks for a complete refresh.
Storefronts & Lobbies
Customer-facing glass kept spotless to project a clean, professional brand image at every entry point.
Safe Methods
Trained technicians use proper ladders, safety equipment, and OSHA-compliant practices for every height.
Flexible Scheduling
One-time deep cleans, monthly, quarterly, or annual programs — scheduled around your business hours.
Detail Inspections
Every job ends with a walk-through to confirm spotless results before our team leaves your property.
What We Cover
Window Cleaning by Service Area
Local pages with city-specific information, neighborhoods we cover, and frequently asked questions.