
Africa Β· Window Manufacturer
Hunter Douglas SA β Window Cleaning Guide
πΏπ¦ South Africa Β· Last reviewed by Justin Orloff
Quick Facts
HQ
Cape Town, South Africa (SA operation)
Parent
Hunter Douglas Group, Rotterdam, Netherlands
Materials
Aluminium windows, facade systems, sun control products
Specialty
Aluminium windows and architectural sun control
Market
South Africa - residential and commercial
Brand at a Glance
- South African operation of global architectural products group Hunter Douglas
- Cape Town base serving Western Cape and national commercial projects
- Aluminium windows plus sun control - unique combination of products in the SA market
Product Range
- Aluminium casement and sliding windows
- Architectural facade systems
- Sun control products (louvres, external shading, screening)
- Commercial aluminium systems
Why This System
Hunter Douglas brings European architectural product standards to South Africa. Their sun control product integration with window systems is distinctive. For cleaners, Hunter Douglas aluminium windows in Cape Town are typically in premium commercial or residential settings where appearance is critical.
Cape Town's climate - strong southeaster in summer, winter rain from the northwest, coastal salt air, and high UV - is demanding on aluminium systems. Hunter Douglas aluminium windows with powder coat or anodised finishes need regular cleaning to maintain appearance and protect against salt corrosion on sea-facing installations.
Step 1 of 2: Manufacturer Recommendations
Official Care Guidance
Step 2 of 2: The Orloffs Protocol
The Orloffs Protocol
Since 1999 I've cleaned hundreds, if not thousands, of different window brands and systems. The physics of clean glass don't change from one brand to the next. Follow the steps below and you'll clean your Hunter Douglas SA windows to a professional standard β guaranteed.
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 Hunter Douglas SA installation.
- 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
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
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 Hunter Douglas SA 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
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
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 Hunter Douglas SA 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
Frame wipe and hardware check
On Hunter Douglas SA 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
- Sun control louvres on Hunter Douglas facade systems collect significant dust in Cape Town summer - include in scope on every visit.
- Cape Town southeaster season: sand and debris impact south-facing facades hard - increase frequency in summer.
- Coastal installations: Hunter Douglas aluminium frames on sea-facing properties need weep holes cleared monthly.
What NOT To Do
- Do not use acid descalers on Hunter Douglas powder-coated aluminium.
- Do not ignore sun control products when cleaning - dirty louvres negate clean windows visually.
- Do not use abrasive products on anodised Hunter Douglas frames.
Bundle Kits and Tool Recommendations
Bundle Kit
Cleaning Frequency
Every 6-8 weeks. Monthly on coastal Cape Town installations and during peak southeaster season.
Frequently Asked Questions
Field Notes
βHunter Douglas SA clients in Cape Town are typically in premium homes or commercial settings. The combination of window cleaning and sun control product maintenance is a complete service - offer both as a package. Louvres and external shading elements are often overlooked and greatly appreciated when included.β
Justin Orloff
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