🧼 How to clean your windows like a professional (Complete guide)

Josep M Carulla Guia
May 3
2 min read

Window cleaning is one of the most delicate tasks in home or commercial maintenance. Achieving spotless, streak-free transparency not only enhances the appearance of any space but also conveys care, hygiene, and professionalism.

At Net i Pulit, a professional cleaning company based in Sant Cugat del Vallès, we’ve prepared this guide so you can learn how to clean your windows like a pro, using the same methods and tools we use every day. And if you’d rather leave it in expert hands, we’ll also tell you when it’s best to hire a specialized service.

🧰 Recommended tools and products for effective window cleaning

To get a truly professional result, it’s essential to use the right materials and techniques. These are the basic tools we use in our window cleaning service:

Professional squeegee and scrubber
Bucket with warm water and neutral soap (or a few drops of ammonia)
Microfiber cloths or lint-free chamois
Scraper for tough stains (lime, paint, etc.)
Telescopic pole for high or hard-to-reach windows
Distilled water (especially in hard water areas)

Avoid common commercial glass sprays with perfumes or alcohol, as they often leave streaks or residues. Professional-grade tools and products are key to achieving perfect clarity.

🧽 Step-by-step: how to clean windows without leaving streaks

Pick the right time of day: Avoid direct sunlight so the product doesn’t dry too fast and leave marks.
Prepare the cleaning solution: Warm water with neutral soap or a few drops of ammonia.
Thoroughly wet the glass with the scrubber or cloth.
Use the squeegee from top to bottom, in straight lines, wiping the rubber after each pass.
Dry the edges and corners with a clean microfiber cloth.
Repeat on the other side if needed for perfect clarity.

Follow these steps and you'll achieve a professional, streak-free finish.

💡 Pro tips from cleaning experts

Use distilled water to prevent limescale spots.
Work in straight, consistent movements—avoid random or circular wiping.
Don’t use paper towels: They can leave fibers and scratch the surface.
Keep your cloths clean and dry: Don’t reuse dirty rags.
Optional: Polish with newspaper for a classic sparkling finish.

🏢 When is it better to hire a professional window cleaning company?

While it’s possible to clean your own windows, there are times when hiring professionals is safer and more efficient:

Windows at height (exterior windows, skylights, glass façades)
Large glass surfaces (commercial premises, offices, stairwells)
Heavy dirt or post-construction residues
Lack of proper tools or time

At Net i Pulit, we use certified equipment, telescopic tools and safety systems to deliver fast, secure and spotless results.

📍 Window cleaning service in Sant Cugat and surrounding areas

Looking for professional window cleaning in Sant Cugat, Rubí, Cerdanyola, Terrassa or the Vallès area? At Net i Pulit, we offer fast, high-quality and no-hassle service tailored to your needs.

✅ Window cleaning for homes, offices, communities and shops✅ Experienced and insured team✅ Fast response and no-obligation quote

📞 Call us at [93 589 00 13] or visit www.netipulit.cat to request more info.

Did you find this guide useful? Stay tuned for more upcoming blog posts with expert advice on professional cleaning—like deep cleaning flats, stairwells, end-of-work cleaning and more.