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Europe · Window Manufacturer

Westcoast Windows — Window Cleaning Guide

🇸🇪 Sweden · Last reviewed by Justin Orloff

westcoast-windows product

Quick Facts

founded

1995

hq

Trollhättan, Sweden (UK office: Woolpit, Bury St Edmunds, Suffolk)

primaryMaterials

Bonded aluminium/timber composite (pine standard, oak available)

glazingPartner

Own glazing production

marketTier

Premium

Brand at a Glance

  • Founded: 1995
  • HQ: Trollhättan, Sweden (UK office: Woolpit, Bury St Edmunds, Suffolk)
  • Market position: Scandinavian manufacturer of bonded aluminium/timber composite windows and doors
  • Frame materials: Bonded aluminium/timber composite (pine standard, oak available)
  • Key ranges: Classic, Classic+, Design windows; Composite Terrace and Patio Doors; Composite Sliding Doors
  • Glazing options: Triple glazed as standard; dual sealed units with argon gas fill and warm-edge composite super spacers; U-values below 0.88 W/m²K; acoustic, solar control, safety, fire-resistant, self-cleaning, and obscure glass available
  • Where they sell: Sweden, UK, export markets
  • Warranty: 10-year guarantee on windows, doors, and mechanisms (maintenance-conditional); 10-year glass warranty against inter-pane condensation
  • Website: westcoastwindows.com
  • Official care documentation: westcoastwindows.com/faqs/

Product Range

  • Classic
  • Classic+
  • Design
  • Composite Terrace and Patio Doors
  • Lift and Slide

Why This System

The bonded composite construction - aluminium bonded to timber with butyl tape - is a meaningful difference from aluminium-clad alternatives. The butyl seal is the critical joint and must not be subjected to pressure, abrasives, or high-pressure water. Powder-coated aluminium exterior is durable but not indestructible - abrasive cloths, rough pads, or solvent-based cleaners dull or damage the finish permanently. The timber interior is completely protected from outside by the bonded design - but still needs care from the inside. Saturating it with water or solvents can damage the lacquer finish. Triple-glazed sealed units are factory-certified - post-processing of any kind voids the 10-year glass warranty. Any intervention goes through Westcoast directly. The 10-year warranty explicitly excludes damage caused by lack of maintenance.

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 Westcoast Windows 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 Westcoast Windows systems.

Pro Tools

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

1T-bar applicator with a clean microfibre sleeve
2Professional squeegee with a fresh rubber blade
3Bucket with lukewarm water and one drop of mild pH-neutral dish soap per litre
4100% cotton towelling rags for edge detailing
5Soft microfibre cloth for the aluminium exterior frames
6Separate cloth for interior timber surfaces
7Light machine oil for annual hardware lubrication

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

Pro Tips

  • The bonded joint at the aluminium/timber interface is the critical line on Westcoast windows - never direct pressure or abrasive tools at it.
  • Petroleum-based cleaners, solvents, and caustic products all permanently damage the powder-coat finish - once the finish is degraded, it cannot be reversed on site.
  • Self-cleaning glass, if specified, should not be cleaned with soap water - the photocatalytic coating relies on UV light and water sheeting, and soap residue interferes with it.
  • The date of manufacture is stamped on the spacer bar between the panes - this is the reference date for the 10-year glass warranty.
  • Keep drainage channels clear - blocked channels cause water to pool at the base of the frame where it can work into joints over time.

What NOT To Do

  • Do not use petroleum-based cleaners on any Westcoast surface - frames or glass.
  • Do not use caustic chemicals on frames or glass.
  • Do not use abrasive cloths, scouring pads, or rough materials on the aluminium exterior or glass.
  • Do not use razor blades, putty knives, or sharp tools on glass or frame surfaces.
  • Do not direct high-pressure water at any Westcoast window - glass, frames, hardware joints, or drainage channels.
  • Do not apply heat-reflective coatings or any post-manufacture treatments to the sealed glass units - this voids the glass warranty.
  • Do not cut, grind, or modify the sealed glass units after installation.
  • Do not saturate the interior timber surfaces with water - use a damp cloth only.
  • Do not use solvent-based products on the powder-coated aluminium exterior or interior timber.
  • Do not clean glass in direct sunlight - the soap water dries before you can squeegee it off.
  • Do not skip annual hardware maintenance - the 10-year product warranty is conditional on maintenance being carried out.

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

Glass and frames: 2x per year minimum (Inside and out.). Urban locations: 4x per year (Traffic pollution, pollen, or construction dust.). Coastal locations: 4x per year (Quarterly cleaning of aluminium exterior to prevent salt deposit buildup.). Hardware inspection and lubrication: Once per year. Gasket and seal inspection: Once per year (Or after heavy storms.). Drainage channel clearance: Once per year (More frequently in autumn when leaf debris is heavy.)

Frequently Asked Questions

How often should I clean Westcoast Windows windows?
For Westcoast Windows windows, Glass and frames: 2x per year minimum (Inside and out.). Urban locations: 4x per year (Traffic pollution, pollen, or construction dust.). Coastal locations: 4x per year (Quarterly cleaning of aluminium exterior to prevent salt deposit buildup.). Hardware inspection and lubrication: Once per year. Gasket and seal inspection: Once per year (Or after heavy storms.). Drainage channel clearance: Once per year (More frequently in autumn when leaf debris is heavy.). Coastal or urban locations may need more frequent cleaning.
What tools do I need for Westcoast Windows windows?
Professional cleaning of Westcoast Windows windows requires my daily tool list of: T-bar applicator with a clean microfibre sleeve, Professional squeegee with a fresh rubber blade, Bucket with lukewarm water and one drop of mild pH-neutral dish soap per litre, 100% cotton towelling rags for edge detailing, Soft microfibre cloth for the aluminium exterior frames, Separate cloth for interior timber surfaces, Light machine oil for annual hardware lubrication.
What should I avoid on Westcoast Windows windows?
Do not use petroleum-based cleaners on any Westcoast surface - frames or glass.
Does Westcoast Windows publish an official cleaning guide?
Westcoast Windows 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 Westcoast Windows windows?
Yes, purified water via a water-fed pole is one of the safest methods for Westcoast Windows glass. Ensure TDS is at or near zero before use and avoid directing high-pressure water at seals or gaskets.

Field Notes

Glass and frames: minimum twice per year inside and out. Urban environments with traffic pollution, pollen, or construction dust: quarterly cleaning recommended. Coastal locations with high salt air exposure: quarterly cleaning of aluminium exterior recommended. Hardware inspection and lubrication: once per year. Gasket and seal inspection: once per year, or after heavy storms. Drainage channel clearance: once per year, or more frequently in autumn when leaf debris is heavy.

Justin Orloff