Gaulhofer — Window Cleaning Guide

Quick Facts

Brand at a Glance

Product Range

Why This System

Step 1 of 2: Manufacturer Recommendations

Official Care Guidance

Glass

• ✓Use mild soapy water and a soft cloth.
• ✓No solvent-based cleaning products on any surface.
• ✕No ammonia-based window sprays - this rules out most commercial glass cleaners.
• ✓No bleach on any surface.
• ✓No abrasive cloths, steel wool, or stiff brushes.
• ✓No sharp tools near the glass, frames, or seals.
• ✓No high-pressure water directed at frame joints, drainage channels, or hardware.

NATURELINE - Pure Timber

• ✓Use only a soft damp cloth with mild soapy water - nothing abrasive, nothing with ammonia.
• ✓Painted and oiled surfaces scratch and stain easily.
• ✓Wood exterior surfaces need additional skilled care depending on weather exposure - contact your Gaulhofer installer for wood-specific maintenance products and intervals.
• ✕The 30-year warranty requires maintenance at the intervals specified by your installer - do not skip.

FUSIONLINE & INLINE - Timber/Aluminium

• ✓Aluminium exterior: soft cloth with mild soapy water - handles regular cleaning without issue.
• ✓Timber interior: mild soapy water and soft cotton cloth only - no harsh products.
• ✓Gaulhofer describes the aluminium exterior as practically maintenance-free - regular mild cleaning maintains the appearance.

ERGOLINE - uPVC/Aluminium

• ✓Soft cloth and mild soapy water on both uPVC interior and aluminium exterior.
• ✓Rinse thoroughly after cleaning to prevent residue buildup in the profile channels.
• ✓No solvents - they degrade uPVC surfaces and damage rubber gaskets.
• ✓No ammonia - damages uPVC and seal materials over time.
• ✕No bleach - discolours uPVC and weakens the frame material.

Hardware

• ✓Oil approximately once per year.
• ✓Contact your Gaulhofer specialist partner for this work - Gaulhofer recommends specialist servicing for hardware adjustment and lubrication.

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 Gaulhofer 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 Gaulhofer 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 Gaulhofer 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 Gaulhofer 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

• ★ Identify the range before you start - NATURELINE, FUSIONLINE, INLINE or ERGOLINE. Frame care differs.
• ★ Clean the frame first, every time. Most streaks come from dirt the squeegee picks up at the frame edge.
• ★ More soap water, not more pressure - Gaulhofer prohibits razor blades and sharp tools on every surface.
• ★ Ammonia-based glass sprays damage every Gaulhofer frame material. Mild soapy water only.
• ★ On NATURELINE, follow the installer's wood-care schedule precisely - the 30-year warranty depends on it.

What NOT To Do

Bundle Kits and Tool Recommendations

Cleaning Frequency

Glass: 2× per year minimum (Spring after winter grime, autumn before the cold months. Quarterly in Austrian cities.). Timber/alu and uPVC/alu frames: 2× per year (Mild soapy water removes pollution deposits from exterior surfaces.). NATURELINE pure timber exterior: Per installer schedule (Follow the maintenance schedule your Gaulhofer specialist provided - the 30-year warranty depends on it.). Hardware: 1× per year (Oiled and inspected by your Gaulhofer specialist partner.)

Frequently Asked Questions

Field Notes

“Glass: 2× per year minimum, quarterly in Austrian cities with pollution, pollen, and construction dust. Timber/alu and uPVC/alu frames: twice-yearly mild soap wipe-down keeps exterior surfaces clean. NATURELINE pure timber exterior: maintenance per installer's schedule - 30-year warranty depends on it. Hardware: annual oiling and inspection via Gaulhofer specialist partner.”

Justin Orloff