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Schüco — Window Cleaning Guide

🇩🇪 Germany · Last reviewed by Justin Orloff

schueco product

Quick Facts

founded

1951

hq

Bielefeld, Germany

primaryMaterials

Thermally broken aluminium

glazingPartner

Specified per project - typically Saint-Gobain or AGC

marketTier

Premium

Brand at a Glance

  • Founded: 1951
  • HQ: Bielefeld, Germany
  • Market position: Global leader in aluminium window, door, and facade systems - one of the largest system houses in Europe
  • Frame materials: Aluminium (thermally broken, powder-coated and anodised finishes)
  • Key ranges: AWS 75, AWS 90 (windows), ASE 60, ASE 80 (lift-and-slide doors), FWS 50, FWS 60 (curtain wall facades)
  • Glazing options: Double and triple glazed. Argon gas fill. Low-E coated as standard. Solar control available. Uw from 0.79 W/m2K.
  • Where they sell: Worldwide - 80+ countries across Europe, Asia, Middle East, Americas
  • Warranty: Project-specific through fabricator partners. Surface warranty tied to Qualicoat-certified coating.
  • Website: schueco.com
  • Official care documentation: schueco.com - Care & Maintenance section
  • Brand-specific resources: Schuco ServiceApp, Schuco Design software, local fabricator network

Product Range

  • AWS 75 / AWS 90
  • ASE 60 / ASE 80
  • FWS facade

Why This System

Powder coat is typically Qualicoat Class 2 - strong, but not invincible. Many installations use anodised finishes which require a different chemistry than powder coat. Facade systems have continuous gaskets that benefit from periodic inspection.

Step 1 of 2: Manufacturer Recommendations

Official Care Guidance

No official guide published. The steps below are based on Justin Orloff's 25 years hands-on experience with this system.

Step 2 of 2: The Orloffs Protocol

The Orloffs Protocol

This is how I clean Schüco windows. The tools and technique below come from 25 years of daily professional work on the glass. Every step has been tested on real installations and adapted specifically for Schüco systems.

Follow these steps in order. Each one builds on the last. This is the same sequence I use on every Schüco installation.

  1. 1

    Preparation -- before any water touches the glass

    Fill the bucket with at least 10 litres of water. Add soap for cleaning power -- enough to cut through environmental deposits, not so much you are fighting foam.

    Before touching the glass, brush down the surface to remove loose dust, spiderwebs, and debris. Any grit left on the glass during the wash phase risks scratching during agitation.

    Check the aluminium frame condition before you start. Confirm which cleaning product is safe for that surface before opening any bottle.

    Cover anything below the windows that cannot be moved.

  2. 2

    Agitation -- apply and work the solution

    Dip the microfiber T-bar completely into the soap water, both sides. Remove excess water with your hand so it does not drip. Apply the solution across the entire glass surface with overlapping passes.

    The goal is to fully dissolve and release every deposit from the glass surface. Anything not released during agitation gets transported across the glass by the squeegee as a smear.

    For stubborn spots -- insect marks, salt residue, environmental deposits -- re-apply soap water and allow it to soak for a full minute before agitating again. Use more soap water, not more pressure.

    For panels above arm reach: attach the T-bar to an extension pole. Work in sections -- top first, then middle, then bottom -- keeping each section wet until you squeegee it.

    Rinse the T-bar cover regularly during the job. A dirty applicator causes microscopic scratches that accumulate over time.

  3. 3

    Detail the frame edge before squeegeeing

    Use your 100% cotton towelling rag, finger pressed into the fabric, to work into every junction and remove pooled soap water before the squeegee pass.

    This prevents drips running down onto already-cleaned areas during squeegeeing and keeps soap water out of drainage channels.

    On Schueco aluminium frames, pay particular attention to the bottom edge where glass meets the frame sill -- water pooled here runs into drainage openings and leaves residue over time.

  4. 4

    The squeegee

    Tilt the squeegee at a slight angle so soap water spills from one side of the channel only -- not both. If the rubber is jumping or squeaking, either the rubber is not lubricated enough or the glass surface has warmed.

    Cutting in: start with the rubber blade making first contact on a dry edge of the glass.

    Side to side: horizontal passes across the panel. Works well on wide sections. Top to bottom: vertical passes down the panel. Works well on tall narrow sections.

    The J tune: one smooth unbroken motion top to bottom, wrist rotating at each end to reverse without lifting the rubber. The most efficient method on larger panels -- but it requires training before applying it to premium glass.

    Wipe the rubber dry after every pass. Overlap each stroke by 2-3 cm.

  5. 5

    Final edge detailing

    After squeegeeing, there is always a residual line of water along the bottom edge and at the panel sides. Take a dry cotton rag, fold to a clean corner, and detail these edges in one smooth pass.

    On Schueco frames, the bottom edge where glass meets the sill requires the most careful attention. Water left here runs into drainage and leaves residue that affects the next clean.

    Rotate the rag to a clean section after every pass. If the rag picks up grit at any point, replace it immediately.

  6. 6

    Frame wipe and hardware check

    On Schueco powder-coated aluminium frames: use pH-neutral cleaner only, never abrasive pads or steel wool. Dry immediately after wiping.

    Check that all drainage openings are clear and unobstructed. Water must be able to flow freely -- a blocked channel leads to accumulation that affects seal performance over time.

    Operate every opening window through its full range. Stiff handles or resistance at locking points indicate hardware that needs lubrication. Flag it to the owner rather than forcing it.

Watch the Window Cleaning Manifesto hereSee these techniques in action. Free, 5 minutes, lifetime access.

What NOT To Do

  • Do not use any cleaner with a pH below 5 or above 8.
  • Do not use solvent thinners on the frame.
  • Do not assume powder coat protocol works on anodised - it does not.

Bundle Kits and Tool Recommendations

Bundle Kit

Orloffs Squeegee Pro Pack flat lay
Pro KitThe full professional setup. Brass squeegees, T-bar with applicator cover, tool belt, rags, soap, and bucket. Everything from the daily tool list in one box.Shop now
Orloffs Squeegee Pro Pack bundled

Cleaning Frequency

Clean every 4–8 weeks depending on environment.

Frequently Asked Questions

How often should I clean Schüco windows?
For Schüco windows, we recommend cleaning twice a year depending on your local environment. Coastal or urban locations may need more frequent cleaning.
What tools do I need for Schüco windows?
Professional cleaning of Schüco windows requires a brass squeegee, T-bar applicator with microfiber cover, tool belt, 100% cotton rags, bucket, soap, and an extension pole.
What should I avoid on Schüco windows?
Do not use any cleaner with a pH below 5 or above 8.
Does Schüco publish an official cleaning guide?
Schüco has not published an official cleaning guide. The protocol on this page is based on Justin Orloff's 25 years hands-on experience.
Can I use a water-fed pole on Schüco windows?
Yes, purified water via a water-fed pole is one of the safest methods for Schüco glass. Ensure TDS is at or near zero before use and avoid directing high-pressure water at seals or gaskets.

Field Notes

On commercial facades, schedule cleans to avoid direct sun on the wash side. Detergent flashes off too fast and streaks are guaranteed.

Justin Orloff