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Europe ยท Window Manufacturer

Gilje โ€” Window Cleaning Guide

๐Ÿ‡ณ๐Ÿ‡ด Norway ยท Last reviewed by Justin Orloff

gilje windows

Quick Facts

Founded

Established Norwegian manufacturer

HQ

Dirdal, Norway

Materials

Timber and wood-aluminium composite

Specialty

Traditional Norwegian window and door systems

Market

Norway (two factories, 250+ employees, 120,000 windows/year)

Brand at a Glance

  • One of Norway's largest window producers
  • Traditional Norwegian timber construction alongside wood-alu systems
  • 120,000 windows per year across two Norwegian factories

Product Range

  • Timber casement and tilt-and-turn windows
  • Wood-aluminium composite windows
  • Exterior doors

Why This System

Gilje windows are built for Norwegian conditions - coastal salt air, heavy rain, frost and ice. Timber units are treated and primed for durability, but they require more attention during cleaning than fully clad systems. The wood-alu range gives the same Norwegian aesthetic with lower maintenance demands on the exterior.

Norway's coastal exposure means Gilje frames accumulate salt deposits quickly, particularly on west-facing elevations. Pure timber units need gentle handling - aggressive brushing or high-pressure water damages the surface finish. Orloffs clean Gilje timber frames with low-pressure rinse, soft brushes and careful attention to painted or stained surfaces.

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 Gilje 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 Gilje systems.

Pro Tools

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

1Microfiber T-bar applicator, kept clean and rinsed regularly to prevent grit
2Professional squeegee with a fresh rubber blade
3Extension pole for glass above arm height
4Bucket with at least 10 litres of water and enough soap for cleaning power without excess foam
5100% cotton towelling rags for edge detailing
6Vacuum for sill tracks and base profiles

Follow these steps in order. Each one builds on the last. This is the same sequence I use on every Gilje 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 timber 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 Gilje timber 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 Gilje 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 Gilje timber frames: use a barely damp cloth and dry immediately. Never allow water to sit on timber joints or frame corners -- moisture causes swelling and paint failure.

    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.

Pro Tips

  • Coastal Gilje installations may have salt crystallised around screws and fixings - note this for the property owner
  • Painted timber frames show streaks if wiped when wet - let the rinse water clear before cloth-drying
  • In winter, ice forming in rebates can prevent tilt hardware from operating - advise owners before forcing

What NOT To Do

  • Do not use a pressure washer on painted timber frames
  • Do not use harsh degreasers or solvent cleaners on any Gilje timber surface
  • Do not scrub painted surfaces with anything coarser than a soft cloth

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 โ†’
Orloffs Squeegee Pro Pack bundled

Cleaning Frequency

Twice yearly minimum - more frequently on coastal and west-facing Norwegian properties.

Frequently Asked Questions

How often should I clean Gilje windows?
For Gilje windows, Twice yearly minimum - more frequently on coastal and west-facing Norwegian properties.. Coastal or urban locations may need more frequent cleaning.
What tools do I need for Gilje windows?
Professional cleaning of Gilje windows requires my daily tool list of: Microfiber T-bar applicator, kept clean and rinsed regularly to prevent grit, Professional squeegee with a fresh rubber blade, Extension pole for glass above arm height, Bucket with at least 10 litres of water and enough soap for cleaning power without excess foam, 100% cotton towelling rags for edge detailing, Vacuum for sill tracks and base profiles.
What should I avoid on Gilje windows?
Do not use a pressure washer on painted timber frames
Does Gilje publish an official cleaning guide?
Gilje 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 Gilje windows?
Yes, purified water via a water-fed pole is one of the safest methods for Gilje glass. Ensure TDS is at or near zero before use and avoid directing high-pressure water at seals or gaskets.

Field Notes

โ€œGilje timber windows on older Norwegian homes are often single-glazed with traditional casement hardware. These need very gentle treatment - the paint film is all that protects the timber. On heritage or listed buildings, confirm the cleaning method with the owner before starting.โ€

Justin Orloff