Fenster Ludwig — Window Cleaning Guide

Quick Facts

Brand at a Glance

Product Range

Why This System

Step 1 of 2: Manufacturer Recommendations

Official Care Guidance

Glass

• ✓Lukewarm water with mild dish soap or purpose-made glass cleaner.
• ✓Microfibre T-bar applicator on wash, professional squeegee on pull. Fresh rubber.
• ✓Check for soft coatings before using any abrasive or hard tool on the glass surface.
• ✓On triple-glazed units, do not lean weight against an open sash.

Frames

• ✓PVC frames: pH-neutral cleaner on a damp cloth. No bleach, solvent, or abrasive.
• ✓Aluminium outer cladding on composite windows: pH-neutral cleaner, soft cloth.
• ✓Timber inner faces: damp cloth with timber-specific mild cleaner, minimal moisture. Check finish condition first.
• ✓Clear drainage slots at the bottom of every frame at every clean.

Hardware

• ✓Wipe hardware dry after every clean. Steel hardware on timber-alu frames rusts if left wet.
• ✓Lubricate tilt-and-turn mechanisms and hinge points annually with light machine oil.
• ✓On older hardware generations, locate all lubrication points before applying oil - the points may differ from current production.

Step 2 of 2: The Orloffs Protocol

The Orloffs Protocol

Pro Tools

My daily tool list. This is what I carry to every job.

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

Pro Tips

• ★ Spring cleans on Alpine Austrian properties need extra dwell time on glass - pollen loads from surrounding woodland can be significant and bond to glass surfaces.
• ★ Dark woodgrain foil PVC frames run warmer than white frames in direct sun - schedule summer cleaning for early morning or late afternoon when the profile has cooled.
• ★ Timber inner faces on composite windows with oak grain need less moisture than softwood frames - oak is denser and absorbs less, but residue left on the surface shows more clearly.
• ★ Check corner welds on dark foil frames at every visit in the first five years of installation - heat expansion stress shows up earliest at the welded corners.
• ★ Older tilt-and-turn hardware generations on Austrian regional manufacture often use a separate hinge lubricator point that is set back from the hinge face. Look for a small cap or slot on the hinge body.
• ★ Hard water mineral deposits from Alpine water supplies appear as white scale at the bottom of the glass unit. A diluted white vinegar solution removes scale without damaging glass or seals.
• ★ On large fixed-light panels, assess ladder or reach tool access before starting. A fixed light that cannot be accessed from outside safely should be flagged before the job is booked.

What NOT To Do

Bundle Kits and Tool Recommendations

Cleaning Frequency

Glass: 2x per year minimum (Spring and autumn. High-pollen Alpine locations may need a third clean in early summer.). Frames: 2x per year (Same visit as glass. Timber inner face condition checks at every visit.). Drainage slots: Every clean (Alpine debris loads are higher than urban - prioritise drainage at every visit.). Hardware lubrication: Once per year (Older hardware generations may need bi-annual lubrication.)

Frequently Asked Questions

Field Notes

“Austrian regional manufacturers like Fenster Ludwig produce products well-matched to their local environment. The challenge for the cleaner is that the same property often contains multiple generations of windows with different hardware specifications. Alpine pollen in spring is the most demanding soiling condition on Austrian windows. Budget extra time on first spring cleans. Dark woodgrain foil profiles are very common in Austrian residential properties - check corner welds as a standard part of every clean on these products.”

Justin Orloff