what do professional window cleaners use to clean windows

Professionals mostly use a simple mix: high‑quality tools plus either a mild detergent solution or pure, filtered water, depending on the job.

Quick Scoop

• Pros rely on squeegees , applicators/scrubbers, microfiber cloths, and sometimes long water‑fed poles with brushes.

• For the actual cleaning liquid, they commonly use:
  • A bucket of water with a small amount of specialist window detergent or mild dish soap.

* Or “pure water” (deionized/RO water) run through water‑fed poles for streak‑free exterior cleaning without added chemicals.

• Professional detergents are usually low‑suds, streak‑free formulas designed to give good “glide” for the squeegee and cut grease without harsh residues.

Core Tools Pros Use

• Squeegee (with replaceable rubber blade) for pulling dirty water off the glass in smooth strokes.

• Applicator/washer (often a microfiber sleeve on a T‑bar) to spread the solution and loosen dirt.

• Microfiber cloths or detailing cloths to wipe edges, frames, and any remaining drips.

• Scrapers or blades (used carefully) for paint, stickers, or baked‑on debris.

• Telescopic or “reach and wash” poles with soft brushes to clean high windows from the ground.

What’s In Their Bucket?

Many pros keep it surprisingly minimal and consistent so they can work fast and avoid streaks. Common options include:

• Specialist window detergents
  • Examples: branded professional liquids and concentrates designed for window cleaning.
  • Features: low suds, good glide, cuts grease, dries clear, often biodegradable or low‑odor.
• Mild dish soap “pro mix”
  • A small squirt in a large bucket of water, just enough for slip and degreasing.
  • Often paired with squeegees for traditional hand‑cleaning.
• Pure water systems
  • Purified via RO/DI filters, then pumped up water‑fed poles.
  • Used especially on exterior glass for a chemical‑free, spot‑free finish once it air‑dries.

Pros may switch between a detergent mix (for very dirty or greasy glass) and pure water (for regular maintenance cleans), depending on the building and level of buildup.

Quick HTML Table (Gear Snapshot)

html

<table>
  <thead>
    <tr>
      <th>Item</th>
      <th>Main Purpose</th>
      <th>Typical Use</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Squeegee</td>
      <td>Removes dirty water and solution for a streak‑free finish.[web:2][web:8]</td>
      <td>Used after scrubbing to pull water off glass in smooth passes.[web:2][web:3]</td>
    </tr>
    <tr>
      <td>Applicator / Scrubber</td>
      <td>Applies solution and loosens dirt on the glass.[web:2][web:3]</td>
      <td>Dipped in bucket, scrubbed over window before squeegeeing.[web:2]</td>
    </tr>
    <tr>
      <td>Professional detergent</td>
      <td>Adds slip, cuts grease, and helps prevent streaks.[web:4][web:7]</td>
      <td>Mixed in small amounts with water in a bucket.[web:4]</td>
    </tr>
    <tr>
      <td>Pure water (RO/DI)</td>
      <td>Chemical‑free cleaning that dries spot‑free.[web:2][web:5]</td>
      <td>Fed through poles and brushes for exterior windows.[web:2][web:5]</td>
    </tr>
    <tr>
      <td>Water‑fed pole & brush</td>
      <td>Reach high windows safely from the ground.[web:2][web:5]</td>
      <td>Common on modern homes and commercial buildings.[web:5]</td>
    </tr>
  </tbody>
</table>

A Quick “Like‑a‑Pro” Example

If you wanted to copy a traditional pro setup on a ground‑floor window, you might:

1. Fill a bucket with cool water and add a small amount of window detergent or mild dish soap.
2. Use an applicator or sponge to scrub the entire pane, including edges.
3. Squeegee from top to bottom in overlapping strokes, wiping the blade on a cloth between passes.
4. Detail the edges and sill with a dry microfiber cloth.

TL;DR: Professional window cleaners mostly use high‑quality squeegees, applicators, microfiber cloths, and either a mild detergent mix or pure filtered water (with water‑fed poles) to get fast, streak‑free results.

Information gathered from public forums or data available on the internet and portrayed here.