
Asia-Pacific ยท Window Manufacturer
Dowell Windows โ Window Cleaning Guide
๐ฆ๐บ Australia ยท Last reviewed by Justin Orloff
Quick Facts
founded
1860
hq
Australia (19 locations nationally)
primaryMaterials
Aluminium - powder-coated and anodised
glazingPartner
In-house glazing across manufacturing facilities
marketTier
Market Leader - Australian residential and commercial
Brand at a Glance
- Country: Australia
- Founded: 1860
- Locations: 19 sites - NSW, VIC, QLD, SA, WA
- Employees: 850+
- Manufacturing facilities: Nine
- Materials: Aluminium - powder-coated and anodised profiles
- Climate context: Australia-wide - UV index 12+ in summer, coastal salt, inland dust
Product Range
- Aluminium casement windows
- Aluminium sliding windows
- Awning windows
- Aluminium sliding doors
- Commercial systems
Why This System
Dowell's 160-year history means their windows span an enormous age range in Australian housing stock. A 1975 Dowell sliding window has a different powder coat specification - and a different level of remaining UV tolerance - than a 2020 Dowell window. Older frames need gentler handling. Because Dowell manufactures across nine facilities in five states, product specifications have varied across regions and time periods. Do not assume that two Dowell-branded windows in different states have identical finishes. Dowell's commercial product range includes heavier-profile systems with anodised finishes common in apartment and commercial builds from the 1980s and 1990s. Anodised profiles require different cleaning chemistry than powder coat.
Step 1 of 2: Manufacturer Recommendations
Official Care Guidance
Source: ORLOFFS PROFESSIONAL GUIDANCE - BASED ON 25 YEARS FIELD EXPERIENCE ON AUSTRALIAN ALUMINIUM SYSTEMS
Glass
- Pre-rinse glass with clean water before applying cleaning solution. Essential on coastal properties and older windows where salt and dust have accumulated between services.
- Use pH-neutral glass cleaning solution. Avoid acid-based cleaners near aluminium frames.
- Squeegee from top to bottom, overlapping strokes, wipe rubber after each pull.
- Inspect glazing seals, particularly on windows over 20 years old. Cracking and separation are common on older Australian stock.
Aluminium Frames
- Wipe with pH-neutral dampened soft cloth. Never use abrasive pads - on older Dowell frames especially, the powder coat is already compromised.
- Rinse frames thoroughly after cleaning. Solution residue on aged powder coat dries into a film that requires abrasive removal.
- On anodised profiles, use only pH-neutral cleaners. Do not use alkaline cleaners.
- Photograph significant chalking, corrosion, or paint failure before cleaning - protect yourself from claims about pre-existing damage.
Tracks
- Brush and vacuum track channels before introducing water. Australian dust in wet tracks forms abrasive slurry.
- Clear weep holes - older Dowell frames may have weep holes partially blocked by decades of debris accumulation.
- Apply silicone lubricant to track surfaces after cleaning. Do not use petroleum-based lubricants.
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 Dowell Windows windows to a professional standard โ 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 Dowell Windows 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 Dowell 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
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 Dowell 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
Frame wipe and hardware check
On Dowell 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.
Pro Tips
- On older Dowell properties, budget additional time for the first clean - decades of accumulated salt, dust, and grime require multiple passes and more solution volume than a maintained property
- If a Dowell sliding window will not operate smoothly after track cleaning and lubrication, note it and move on - forcing the window risks damaging already aged hardware and puts the liability on you
What NOT To Do
- Do not use abrasive pads on any Dowell aluminium frame - older frames especially have compromised powder coat that abrasion will damage further
- Do not use alkaline cleaners on anodised Dowell profiles
- Do not skip pre-rinsing on coastal properties
- Do not dry-wipe dusty or salt-affected frames - pre-rinse first
- Do not assume all Dowell windows in a property have the same finish - commercial and residential products differ
Bundle Kits and Tool Recommendations
Bundle Kit
Cleaning Frequency
Coastal residential: Every 4 to 6 weeks (Salt air and aged frame condition demand frequent attention). Urban and inland residential: Every 8 to 12 weeks (Standard Australian residential interval)
Frequently Asked Questions
Field Notes
โDowell sliding windows from the 1970s and 1980s often have original rollers that are at or past the end of their service life. Stiff sliding action or rollers that skip on the track are common - note this on your service report rather than attempting to force the window. In WA, Dowell windows near the coast show accelerated corrosion compared to eastern states - the Fremantle Doctor wind drives salt air inland further than typical coastal exposure. Add a coastal salt protocol for any WA property within 10km of the coast.โ
Justin Orloff
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