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Maintenance Tips for Fiberglass Windows

If you’re a homeowner in the NYC Metro Area, you’ve likely chosen fiberglass windows for their strength, longevity, and efficiency—but even the toughest materials benefit from proper care. The good news? Fiberglass window maintenance is simple and stress-free when done correctly. With a little attention each season, you can keep your windows looking and functioning like new for decades.

fibreglass windows

How to Maintain Fiberglass Windows With Ease

One of the best parts about fiberglass is how low-maintenance it is. But that doesn’t mean you can ignore upkeep altogether. Knowing how to maintain fiberglass windows helps extend their lifespan and ensures they continue to insulate your home properly—an essential feature in a climate as dynamic as New York City’s.  Start with regular inspections. At least twice a year (ideally spring and fall), give your windows a thorough once-over. Look for signs of wear like damaged weather stripping, debris in the tracks, or buildup around the frames.

Smart Cleaning Techniques for Lasting Shine

Cleaning fiberglass windows is a breeze, and it doesn’t require harsh chemicals. In fact, it’s best to avoid abrasive cleaners that might scratch or dull the surface. Use a soft cloth or sponge with mild dish soap and warm water to wipe down frames. For the glass, a streak-free window cleaner or a homemade solution of vinegar and water works well. Always rinse thoroughly and dry with a lint-free cloth to prevent spotting. If you have painted fiberglass frames, check the paint’s condition and touch up as needed using products recommended by your window manufacturer.

Keep Moving Parts in Top Shape

One of the most overlooked fiberglass window care tips is lubricating hardware. Hinges, locks, and tracks should be cleaned and lubricated yearly to prevent stiffness or malfunction. A silicone-based lubricant works best—just avoid oil-based options that can attract dust and grime. While inspecting these parts, make sure to remove any debris that might be trapped in the tracks, especially after a storm or during NYC’s pollen-heavy seasons. A small vacuum attachment or soft brush can help with this task.

Routine Upkeep for Long-Term Payoff

Long-term fiberglass window upkeep includes checking seals and caulking to make sure your windows remain airtight. If you notice any cracking or peeling around the edges, reapply a high-quality caulk designed for exterior use. Doing this not only preserves energy efficiency but also keeps moisture from seeping in and causing structural issues.

Partner With the Pros

For homeowners in the NYC Metro Area, keeping fiberglass windows in top condition doesn’t have to be a burden. With a few simple steps each year, you’ll enjoy all the performance and style benefits fiberglass has to offer. Need expert advice or a professional inspection? Contact Home Supply Window & Door for guidance on maintaining your fiberglass windows or upgrading to a new set built to last in New York City’s demanding environment.