Asia-Pacific · Window Manufacturer
LX Hausys
🇰🇷 South Korea · Last reviewed by Justin Orloff
Quick Facts
Founded
2009 (as LG Hausys; rebranded LX Hausys 2021)
HQ
Seoul, South Korea
Materials
uPVC, aluminium, architectural glass
Specialty
FENEST uPVC window profiles; full building materials range
Market
South Korea residential and commercial; international export
Brand at a Glance
- South Korea's largest building materials company with decades of window system experience
- FENEST uPVC system designed for Korea's extreme climate range - cold winters, humid summers, yellow dust season
- Aluminium and glass divisions serve commercial and high-rise construction alongside residential uPVC range
Product Range
- FENEST uPVC casement, tilt-and-turn, and sliding window systems for residential and light commercial
- Aluminium window and curtain wall systems for commercial and high-rise applications
- Architectural flat glass including Low-E and laminated units for construction
Why This System
LX Hausys FENEST profiles are engineered for Korea's climate duality: deep cold winters requiring strong thermal performance, and humid summers that stress frame seals and glazing unit edges. The combination of multi-chamber uPVC profiles with energy-rated glazing units is standard across the range - cleaning that damages seals or glazing edges directly undermines the reason these windows were installed.
Korea's yellow dust season (March to May) deposits a fine, alkaline-leaning particulate on every external surface. On uPVC profiles, dry yellow dust ground in by rain becomes abrasive. On Low-E glass, if it is scrubbed rather than soaked and squeegeed, surface micro-scratches reduce coating effectiveness. The correct approach is pre-soak, not scrub.
Step 1 of 2: Manufacturer Recommendations
Official Care Guidance
Step 2 of 2: The Orloffs Protocol
The Orloffs Protocol
This is how I clean LX Hausys 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 LX Hausys systems.
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 LX Hausys installation.
- 1
1. Pre-rinse the entire window - glass, frames, sills, and weep holes - with clean water before applying any solution. Yellow dust and winter road salt must be flushed, not scrubbed.
- 2
2. Apply pH-neutral cleaning solution to the glass. Allow 20-30 seconds dwell time on heavy soiling from dust or pollution.
- 3
3. Squeegee glass top to bottom with clean, consistent strokes. Wipe the squeegee blade after each pass.
- 4
4. Wipe uPVC frames with a damp microfibre cloth and fresh pH-neutral solution. Do not use the same cloth used on glass - transfer of grit causes frame scratches.
- 5
5. Clear weep holes with a soft brush. Humid summers and autumn rainfall pack debris into drainage channels. Blocked weep holes cause water to stand behind the frame base.
Pro Tips
- During yellow dust season, double your cleaning frequency and always pre-rinse before any other step - dry-scrubbing yellow dust on glass or uPVC causes surface abrasion.
- In winter, check for ice at frame bases and weep hole exits before cleaning. Ice in drainage channels means water is trapped inside the frame - do not pressure rinse until it has thawed.
- Never use alkaline or high-pH cleaners on FENEST uPVC profiles - Korean yellow dust is already slightly alkaline and combined residue accelerates profile yellowing.
What NOT To Do
- Do not dry-scrub frames or glass during or after yellow dust season - pre-rinse first, always.
- Do not use abrasive pads or scouring powders on uPVC profiles.
- Do not pressure wash directly into glazing unit edges or frame joints - Korea's thermal systems rely on intact seals.
Bundle Kits and Tool Recommendations
Bundle Kit
Tool Recommendations
pH-neutral window cleaning detergent
View on Amazon [coming soon]14-inch squeegee with fresh rubber
View on Amazon [coming soon]Microfibre cloths for frame wipe-down (separate set from glass cloths)
View on Amazon [coming soon]Cleaning Frequency
Every 6-8 weeks year-round. Increase to monthly during yellow dust season (March to May). Post-winter clean in late March is essential to remove road salt and winter grime from frame bases and sills.
Frequently Asked Questions
Field Notes
“Yellow dust settles in every track groove, weep hole, and frame joint. On sliding FENEST windows, clean the interlock channel every visit during spring - packed yellow dust causes seal wear and operational stiffness within one season if left. On high-floor installations, yellow dust soiling on north-facing elevations is lighter; south and west elevations take the heaviest loading.”
Justin Orloff
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