Posted on March 21st, 2025

When it comes to window cleaning, not all glass is created equal. Professional window cleaners know that using the right tools and techniques for each type of glass can make the difference between a spotless shine and a streaky mess. Whether it's residential window cleaning, commercial storefront maintenance, or tackling specialty glass, the right approach ensures a crystal-clear view every time.

Understanding Different Types of Glass

Professional window cleaners often encounter a variety of glass types, each requiring its own technique and cleaning solution. Here’s a breakdown of the most common types and how professionals handle them:

1. Tempered Glass
   Tempered glass is durable but prone to scratching if not handled properly. Professionals use soft, lint-free cloths and squeegees with rubber edges. A mild, streak-free glass cleaner works best, and cleaners are careful not to use harsh chemicals that can etch the surface.
2. Low-E Glass (Low Emissivity)
   Low-E glass is coated to improve energy efficiency, making it sensitive to abrasive materials. Window cleaning professionals use non-ammonia, non-vinegar-based cleaners and soft microfiber cloths to maintain the glass’s integrity. Gentle pressure is key to avoid disturbing the coating.
3. Tinted Glass
   Cleaning tinted glass requires caution, as harsh chemicals can cause the tint to fade or peel. Professionals prefer soap and water solutions, applied with a microfiber applicator and removed with a squeegee. They make sure to dry the edges carefully to prevent water from seeping into the tint.
4. Textured or Frosted Glass
   These types of glass are often decorative and require a more meticulous approach. A soft-bristle brush and a mild cleaning solution help get into the crevices without damaging the surface. Squeegee handles with a swivel feature make it easier to navigate uneven textures.
5. Insulated Glass Units (IGUs)
   Insulated glass can be prone to fogging or condensation between panes if seals are damaged. While cleaning the exterior is straightforward, addressing interior moisture issues may require replacement. Professional cleaners may advise clients to check seals regularly.

Choosing the Right Tools and Supplies

Different glass types require different tools. Here are some key window cleaning tools professionals swear by:

• Squeegee Handles and Blades: Traditional handles are great for flat glass, while swivel handles offer more flexibility for pole work. Complete squeegee sets often include multiple blade sizes to handle varying glass surfaces.
• Glass Cleaners: Ammonia-free and streak-resistant cleaners are preferred to maintain clarity and protect coatings.
• Microfiber Towels and Cloths: Essential for wiping down glass without leaving fibers or streaks behind.
• Extension Poles: Useful for reaching high or hard-to-access windows without compromising safety.
• Cleaning Solutions: Depending on the glass type, professionals may use specialty soaps or water-fed systems to minimize spotting and streaking.

Tackling Marks and Residue

Even after a thorough cleaning, some glass surfaces may have persistent marks. Professional window washers know that using a razor scraper on flat, uncoated glass can remove stubborn grime or paint. However, this tool is never used on coated or tempered glass, where it could cause permanent damage.

Seasonal Window Cleaning Considerations

Weather can affect how glass reacts to cleaning solutions. For example, in colder months, professional cleaners may add antifreeze agents to their solutions or use hot water to break down grime without causing thermal shock to the glass.

Investing in Quality Window Cleaning Tools

For those starting a new window cleaning business or looking to upgrade their toolkit, investing in durable squeegee handles, complete squeegee sets, and high-quality microfiber towels is crucial. Choosing the best handle for squeegee work, whether traditional or swivel, can make a significant difference in efficiency and results.

Achieving Year-Round Shine

To keep windows looking pristine year-round, professionals recommend setting up a consistent cleaning schedule. Regular maintenance prevents the buildup of hard water stains and mineral deposits, which can be difficult to remove once settled.

By mastering the art of handling different glass types and using the right tools, professional window cleaners ensure that every job leaves a lasting impression. Whether it’s residential, commercial, or storefront cleaning, proper technique and quality supplies make all the difference.