If your Grand Rapids home has storm windows, you might assume they protect your main windows from dirt, pollen, and grime. While storm windows do add a layer of protection against the elements, they need regular cleaning just like any other glass surface on your home.

At Moonwalker Window Cleaning, we see storm windows on homes throughout West Michigan — and we know firsthand how neglected storm windows can cause problems over time. Here is what every homeowner should know heading into fall.

What Storm Windows Actually Do

Storm windows are secondary windows installed on the exterior or interior of your main windows. They provide an extra layer of insulation and help reduce energy costs during Michigan winters. Many Grand Rapids homes — especially older ones in Heritage Hill, Eastown, and Alger Heights — still rely on storm windows for seasonal protection.

But that protective barrier traps moisture, pollen, dust, and debris between the storm window and the primary glass. Over time, this buildup leads to foggy glass, hard water stains, and even mold growth in the window tracks.

Why Dirty Storm Windows Are More Than a Cosmetic Problem

When dirt and moisture accumulate between your storm window and primary window, several issues can develop:

Hard water staining: Mineral deposits etch into glass over time, becoming permanent if left untreated
Mold and mildew: Trapped moisture creates the perfect breeding ground in window tracks and frames
Reduced natural light: Two layers of dirty glass dramatically cuts the sunlight entering your home
Seal deterioration: Grime buildup can degrade weatherstripping and seals, reducing the energy efficiency you installed storm windows for in the first place

Cleaning both the storm window and the primary window behind it is the only way to maintain clarity, protect your glass, and keep your home healthy.

When Should You Clean Storm Windows in Michigan?

The best times to clean storm windows in Grand Rapids are during the seasonal transitions:

Late summer / early fall: Before you button up for winter, clean the interior face of storm windows and the exterior of primary windows. This removes summer pollen, dust, and hard water spots before they get trapped all winter.
Spring: After removing or opening storm windows, clean off winter grime, road salt film, and condensation stains.

Right now — late August — is the ideal window to schedule a cleaning before fall sets in. Once temperatures drop and storms roll through West Michigan, you will not want to deal with window maintenance until spring.

How Moonwalker Cleans Storm Windows Safely

Our team uses water fed pole technology with pure water to clean exterior storm windows from the ground. No ladders touch your home or building — ever. Our water fed pole system reaches upper-story windows safely while delivering a streak-free, spot-free finish.

For interior storm windows and the space between the storm and primary glass, our crew works at ground level using small 4-foot step ladders for access only when needed. We never lean ladders against your home or siding.

Because we use pure water with no chemicals, there is no soapy residue left behind to attract new dirt. Your storm windows stay cleaner longer, and there is zero risk to your landscaping, pets, or family.

Can You Clean Storm Windows Yourself?

You can certainly wipe down the interior glass and vacuum out the tracks. But for a thorough cleaning — especially upper-story windows or hard-to-reach exteriors — professional cleaning is safer and more effective.

DIY storm window cleaning often means removing heavy glass panels, balancing on ladders, and dealing with awkward angles. It is time-consuming, risky, and rarely produces the same results as professional-grade pure water cleaning.

With 15 years of family-owned experience, Moonwalker Window Cleaning handles storm windows on homes across Grand Rapids, Kentwood, East Grand Rapids, Wyoming, Grandville, and the surrounding communities. We know the quirks of West Michigan homes and we get the job done efficiently.

Get Your Storm Windows Cleaned Before Fall

Do not let another Michigan winter seal in months of grime between your storm windows and primary glass. A professional cleaning now means clearer views, better insulation, and protected glass all season long.

Call Moonwalker Window Cleaning today at (616) 889-1243 or request a free estimate online. We serve Grand Rapids and all of West Michigan with safe, eco-friendly, no-ladder window cleaning — powered by our all-electric Tesla fleet.