North America ยท Window Manufacturer
Loewen Windows โ Window Cleaning Guide
๐จ๐ฆ Canada ยท Last reviewed by Justin Orloff
Quick Facts
founded
1905
hq
Steinbach, Manitoba, Canada
primaryMaterials
Timber, aluminium-clad timber, and full aluminium profiles
glazingPartner
High-performance glazing specified per project - triple-pane standard on many Canadian builds
marketTier
Luxury / Architect-specified
Brand at a Glance
- Country: Canada
- Founded: 1905
- Facility: 600,000 sq ft custom manufacturing, Steinbach, Manitoba
- Primary materials: Timber, aluminium-clad timber, full aluminium
- Sizing: Bespoke custom sizing - no standard catalogue
- Market: Luxury residential, architect-specified, US and Canadian high-end builds
- Market tier: Luxury
- Website: loewen.com
Product Range
- Timber windows and doors
- Aluminium-clad timber windows
- Full aluminium windows and doors
- Lift and slide doors
- Pivot doors
Why This System
The timber-aluminium junction on Loewen clad windows is unique in Canadian manufacturing. The aluminium cladding is mechanically fixed over the timber frame with a designed gap to allow for timber movement with humidity and temperature change. Water sitting in this junction - from pressure washing, over-wetting the frame, or blocked drainage - wicks into the timber core and begins rot from the inside out. Loewen powder coat finishes are specified to high standards but they are applied over shaped aluminium profiles with corner radii and joints that collect cleaning product residue. Residue left in these joints discolours the finish over time and is difficult to remove without abrasion. Manitoba winters are extreme - temperatures regularly fall below minus 30 degrees Celsius. Freeze-thaw cycling through spring puts significant stress on all seal and junction points. The cleaning visit following the first spring thaw is the most important diagnostic visit of the year on Loewen windows.
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 Loewen 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 Loewen 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 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
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 Loewen 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
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 Loewen 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 Loewen 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.
Pro Tips
- Keep a separate set of cloths for Loewen timber interiors - never use the same cloth on timber that has touched glass cleaning solution
- On the spring visit, photograph every glazing seal bead, every cladding junction seam, and every piece of hardware before cleaning begins - this documents pre-existing winter damage and protects you from liability
- Apply silicone lubricant to sliding tracks after every clean on lift-and-slide systems - Manitoba winters make metal tracks contract and bind, and a well-lubricated track is the difference between smooth operation and a damaged roller
- If a Loewen casement or awning sash feels stiff to open, do not force it - cold or humidity may have caused the timber to swell slightly. Flag it to the homeowner rather than risk damaging the hinge arm
What NOT To Do
- Do not pressure wash Loewen windows - high-pressure water forces moisture into the timber-aluminium junction and begins internal timber rot
- Do not use acid-based glass cleaners near any timber or aluminium junction - acid attacks both materials
- Do not use abrasive pads or steel wool on powder-coated aluminium cladding
- Do not wet the interior timber frame - use barely damp cloths only and dry immediately
- Do not leave cleaning solution residue in cladding joints or frame channels
- Do not ignore glazing seal cracks after winter - on a Loewen triple-pane unit, a failed seal is an expensive replacement
- Do not use solvent-based cleaning products on any part of a Loewen timber window
Bundle Kits and Tool Recommendations
Bundle Kit
Cleaning Frequency
Clean every 4โ8 weeks depending on environment.
Frequently Asked Questions
Field Notes
โSchedule the first spring clean immediately after the final freeze-thaw cycle - this is the primary diagnostic visit for Loewen windows. Check every junction, seal, and cladding seam for winter damage before cleaning begins. Loewen windows are specified on high-value properties. Owners and architects are aware of the product and its value. Document any seal failures, cladding movement, or hardware issues on every visit - this protects you and builds trust with the client. The timber-aluminium junction is the single biggest risk point on any clad window in a Canadian climate. Never pressure wash. Never over-wet the frame. Always check drainage from the junction channel after cleaning. Large-format Loewen pivot and lift-and-slide panels can weigh significantly more than standard residential windows. Ensure hardware is moving freely before attempting to open for cleaning - forcing a stiff pivot or slide mechanism can damage the locking points.โ
Justin Orloff
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