Europe ยท Window Manufacturer
EgoKiefer โ Window Cleaning Guide
๐จ๐ญ Switzerland ยท Last reviewed by Justin Orloff
Brand at a Glance
- Founded: 1910
- HQ: Aesch, Switzerland
- Market position: Leading Swiss window manufacturer - premium residential and commercial
- Frame materials: uPVC, timber-aluminium composite, aluminium
- Glazing: Double and triple glazed; Minergie-P certified units available; argon fill, Low-E coated
- Key standards: Minergie, Minergie-P, Swiss SIA 318 norm
- Where they sell: Switzerland and adjacent European markets
- Official website: egokiefer.ch
Product Range
- Ego Classic โ timber-aluminium composite, Minergie and Minergie-P certified
- Ego Alu โ aluminium frames for slim sightlines
- Ego Comfort โ uPVC windows for residential renovation
- Ego Sliding โ aluminium sliding systems for large openings
Why This System
EgoKiefer's century of Swiss manufacturing experience and Minergie certification across multiple ranges sets them apart. Every frame is built to Swiss SIA 318 norm with verified energy performance โ not a marketing claim but a certified standard. The timber-aluminium composite range achieves thermal performance most aluminium systems cannot reach without thicker profiles.
Step 1 of 2: Manufacturer Recommendations
Official Care Guidance
Step 2 of 2: The Orloffs Protocol
The Orloffs Protocol
This is how I clean EgoKiefer 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 EgoKiefer 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 EgoKiefer 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 composite 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 Egokiefer composite 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 Egokiefer 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 Egokiefer frames, apply the appropriate product for each surface: pH-neutral for aluminium and glass, solvent-free for uPVC, barely damp cloth for timber. Never cross-contaminate products between surfaces.
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.
What NOT To Do
- Never use acidic or solvent-based cleaners on timber-aluminium composite frames - the junction between wood and aluminium is the most vulnerable point and acid attacks both surfaces simultaneously.
- Never let cleaning solution pool on the timber interior - EgoKiefer lacquered wood surfaces absorb moisture at grain lines and the lacquer can bubble if solution sits for more than a few seconds.
- Never use abrasive pads, steel wool, or razor blades on EgoKiefer glass - Minergie-certified sealed units use Low-E coatings that can be scratched by any abrasive contact.
- Never pressure-wash EgoKiefer windows - high-pressure water penetrates the timber-aluminium junction and accelerates corrosion of the aluminium cladding anchors.
- Never clean in direct sunlight or when surface temperature exceeds 25 degrees C - solution flashes off EgoKiefer coated glass before the squeegee reaches it, leaving residue that bonds to the Low-E surface.
- Never use ammonia or bleach-based products near EgoKiefer hardware - Swiss multi-point locking systems use corrosion-protected steel components that degrade under aggressive chemical exposure.
Bundle Kits and Tool Recommendations
Bundle Kit
Cleaning Frequency
Clean every 4โ8 weeks depending on environment.
Frequently Asked Questions
Field Notes
โEgoKiefer timber-aluminium windows have been producing the same Swiss composite joinery since 1910. What that means on a job is that the timber interior and aluminium exterior have completely different care requirements - and they sit 30 millimetres apart from each other separated by a thermal break. You have to switch your product and your cloth between surfaces on the same frame, and you have to do it without cross-contaminating. It is not complicated, but it is deliberate. Minergie certification on EgoKiefer glazed units means the sealed glass units are tested and certified to Swiss energy standards. The Low-E coating sits on an internal glass surface inside the sealed unit, so your cleaning products cannot reach it directly. What you can do is damage the edge seal over time with aggressive chemistry, which eventually allows moisture into the sealed unit cavity. The visual sign is condensation appearing between the panes - at that point the unit needs replacement, not cleaning. Neutral pH only, every time. In Switzerland, EgoKiefer installations appear in both new construction and renovation projects going back decades. On older installed stock, check the condition of the timber frame interior before assuming a standard visit. If the lacquer is cracking or the timber shows grey weathering at the edges, that signals a maintenance conversation with the building owner, not a cleaning problem. Clean what is there and document what you see.โ
Justin Orloff
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