
With over 14 years of experience, GS Maintenance LLC provides reliable residential and commercial cleaning services across Maryland and Pennsylvania. Our goal is to create cleaner, healthier spaces while helping homes and businesses make a great impression.
Power Washing, for restaurants, parking lots, dumpsters, drive-thrus, homes, decks, patios, boats, heavy equipment, trucks, and fleets.
Window Cleaning, streak-free results using purified water systems.
Carpet Cleaning, deep cleaning for cleaner, fresher carpets.
Floor Restoration, grout cleaning, VCT stripping & waxing, hardwood, and marble care.
Care, Consistent, high-quality cleaning with close attention to detail.
Gym & Fitness Floor Maintenance, including rubberized floors, indoor tracks, and specialty surfaces for facilities like gyms and fitness centers.
Solar Panel Cleaning, improving energy efficiency with safe, streak-free maintenance.
Perfection in every detail. here’s a glimpse of the transformations our team delivers every day.






"I have been using Oscar and his company for the past 2 years. They are professional and always do an outstanding job! We have used them for services at our home for carpet cleaning, regularly use them for residential cleaning of our home, and we have used them for commercial cleaning at our restaurant. I highly recommend Oscar and his company!"
Michelle Hollander
"They did a fantastic job giving the ReStore a deep cleaning and managed to get out tile floor shining , which I thought could never happen. He is very responsive, professional, and had great communication. I highly recommend his services!"
Aberdeen ReStore
"These guys are amazing! Great customer service, communication and work ethic! They gave me an estimate and stuck to it, they texted me to remind me of our appointment and were on time! They worked so hard to get all the green stuff off of my house, my deck, my mailbox, front porch and front bricks as well as my driveway and back patio. I cannot express how thankful I am for their work and professional attitude. They were also very kind and respectful and displayed professionalism in every aspect of the job, which was huge!"
Janice Chan
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