How to Clean and Maintain Various Window Styles

Your windows can get dirty and lose their shine over time, so if you’re wondering how to keep them clean and in good shape, we’ve got you covered. In this guide, we provide window cleaning tips and advice for maintaining different windows. We also discuss what to avoid doing so you don’t damage your windows and can extend their lifespan.

Instructions for Cleaning Different Window Styles

Every window style has features that influence cleaning method. Understanding these differences will help you clean effectively and avoid potential damage.

1. Double-Hung Windows

Traditional double-hung windows have one lower and one upper sash that both slide up and down to let in fresh air, but many newer models have tilt-in sashes that make cleaning easier. Here’s how to clean them:

First, clean the frames and sills with a dry cloth to remove loose dirt.
If your windows tilt inward, unlock them and tilt them so you can reach both sides of the glass from inside. If they don’t tilt, you’ll have to go outside to clean the outside of the windows.
Spray glass cleaner on the glass, then wipe with a microfiber cloth from top to bottom.
Use a soft brush or a vacuum to remove dirt and debris from the grooves where the windows slide, which are called the tracks. This extra step will help them open and close smoothly.
Wipe away any remaining moisture with a dry cloth before restoring the sashes to their closed position.

2. Gliding and Sliding Windows

The key to keeping gliding and sliding windows in good shape is cleaning the tracks since they move left and right along the frame:

Open the window all the way so you can reach both sides of the glass and the tracks.
Use a small brush or a vacuum to remove dirt and debris from the tracks. If the tracks are dirty, it will be hard to open and close the window.
Wipe the frames with a dry cloth.
Spray glass cleaner on both sides of the glass, then wipe with a microfiber cloth. If possible, gently remove and clean the sashes before reinserting them.
Ensure everything is completely dry to keep the window working smoothly and prevent rust or mold from growing.

3. Casement and Awning Windows

Casement windows are hinged on the side and swing outward like a door, while classic awning windows are hinged at the top and open outward from the bottom. Both styles make cleaning from inside your home remarkably easy.

Swing casement windows open all the way, or crank awning windows open as far as they go to let you reach both sides of the glass from inside.
Use a dry cloth to clean the window frame, especially the parts you can see when the window is open.
Spray glass cleaner on the glass, then wipe with a microfiber cloth.
Clean the crank mechanism and hinges. Use a soft cloth to remove dust and grime, so they keep working smoothly.
Wipe away all moisture using a dry cloth to prevent water spots from forming and ensure the components remain in good condition.

4. Picture, Bay and Bow Windows

Picture windows are large, fixed panes that don’t open, while bay and bow windows extend beyond your home’s exterior walls, creating those beautiful nooks and panoramic views. The challenge with these windows is often their size and the angles involved.

For picture windows, you may need to use a pole with a microfiber cloth. Ensure that you clean carefully, section by section, so you don’t miss any spots. For bay and bow windows, clean each section of glass separately, like you would any other window. Take your time and use a squeegee to get a nice, streak-free finish.

General Window Maintenance Guide

Cleaning keeps your windows looking good, but regular maintenance ensures they continue to function properly and protect your home efficiently. Here’s what to do:

Inspect Seals and Weatherstripping

The seals around your windows keep air from leaking in or out. If air is leaking, you’re wasting energy and could get moisture problems. Check your window seals and weatherstripping for cracks or gaps at least once a year. On a windy day, feel around the window to see if you feel any air coming through. You can also hold a candle near the window and see if the flame flickers. If you find damaged seals, contact a professional to replace them immediately.

Lubricate Moving Parts

Your windows have hinges, locks and tracks that need occasional lubrication to operate smoothly. A silicone-based lubricant is most effective for this purpose. Apply it sparingly to hinges, sliding tracks and lock mechanisms about twice a year or whenever you notice stiffness or squeaking. This simple step reduces wear on these components and extends their functional life.

Maintain the Window Frames

Your window frames need attention, too, but how you care for them depends on what they’re made of:

Wood windows: Check for rot, peeling paint or scratches. If you find small problems, sand them down, fill them in if needed, and repaint or stain them. You need to do this regularly to keep your wood window frames protected.
Vinyl windows: Vinyl frames are relatively low-maintenance – you generally only need to clean them with a soft cloth and soapy water.
Aluminum windows: Clean them like vinyl frames, using a soft cloth and soapy water. If you have tough grime, use a cleaner that’s safe for metal. Avoid using anything too acidic or alkaline, and always rinse and dry them thoroughly to prevent water spots from forming.

What to Avoid When Cleaning and Maintaining Your Windows

Knowing what to avoid is just as important as knowing what to do when it comes to maintaining different windows. Avoiding these mistakes will prevent damage and help your windows last longer:

Abrasive cleaners and sponges: These can scratch the glass and damage the window frames. Instead, use soft cloths and gentle, nonabrasive cleaning solutions.
Pressure washers: High pressure can break window seals, force water into the frame and even damage the siding around the window. It’s better to clean windows by hand or with a regular garden hose.
Ammonia-based glass cleaners: These cleaners are especially bad for Low-Emissivity (Low-E) glass, which has a special coating that ammonia can strip away. Instead, use mild soap and water or cleaners made for coated glass.
Using razor blades on glass: Even small scratches from a blade can damage the glass over time. They can spread, especially when the glass gets hot or cold. If you have something stuck on the glass, try a special glass cleaner or call a professional instead of risking damage.

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Ready to discover how much easier window maintenance can be? Schedule a free consultation with Renewal by Andersen^® to learn more from our window experts today.