Skip to content
Hajom logo

Europe · Window Manufacturer

Hajom

🇸🇪 Sweden · Last reviewed by Justin Orloff

Hajom window product

Quick Facts

founded

1911

hq

Hajom, Västra Götaland, Sweden

primaryMaterials

Timber (spruce, oak, teak, ash, meranti, accoya, sapeli), timber/aluminium

glazingPartner

Own glazing production

marketTier

Premium

Brand at a Glance

  • Founded: 1911
  • HQ: Hajom, Västra Götaland, Sweden
  • Market position: Specialist Swedish sliding door and window manufacturer, part of Inwido Group
  • Frame materials: Timber (spruce, oak, teak, ash, meranti, accoya, sapeli), timber/aluminium composite
  • Key ranges: Classic Series, Architect Series, Architect Gen 2
  • Glazing options: Triple glazed standard. Argon gas fill. Low-E energy glass. Warm-edge spacers. U-values from 0.65 W/m²K. Self-cleaning, solar control, and acoustic glass available.
  • Where they sell: Sweden, Nordic markets, selected European markets via Inwido distribution
  • Warranty: 10 years on timber components against rot, 10 years against inter-pane condensation, 10 years on product function. Maintenance-conditional.
  • Website: hajom.com
  • Official care documentation: hajom.com/kopguide/ta-hand-om-dina-produkter

Product Range

  • Classic Series
  • Architect Series
  • Architect Gen 2

Why This System

Large-format glazing demands adapted squeegee technique - full-height sliding panels can be several metres wide, and water management at the frame edges becomes more demanding at this scale. Thermally hardened glass can carry small raised particles in the surface layer - a by-product of the hardening process that makes the glass scratch more easily than standard float glass. Timber thresholds require oiling a minimum of twice per year - not just cleaning. Dry thresholds crack and void the warranty. Hajom supplies timber with base oil only, not a complete finish. The first full treatment must happen immediately after installation. The 10-year warranty is explicitly maintenance-conditional per Hajom's guidelines and TMF standards.

Step 1 of 2: Manufacturer Recommendations

Official Care Guidance

No official guide published. The steps below are based on Justin Orloff's 25 years hands-on experience with this system.

Step 2 of 2: The Orloffs Protocol

The Orloffs Protocol

This is how I clean Hajom 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 Hajom systems.

Pro Tools

My daily tool list. This is what I carry to every job.

1T-bar applicator with a soft microfibre cover (extended handle for large-format panels)
2Professional squeegee with a fresh rubber blade - 35cm or wider for large panels
3Bucket with lukewarm water and one drop of mild pH-neutral dish soap per litre
4100% cotton towelling rags for edge detailing
5Soft microfibre cloth for frame surfaces
6Paraffin wax block or candle stub for track lubrication
7Clear exterior oil for hardwood threshold maintenance

Follow these steps in order. Each one builds on the last. This is the same sequence I use on every Hajom installation.

  1. 1

    Detail the Frame and Track First

    Before any water goes on the glass, wipe down the frame edges with a damp microfibre cloth and mild soapy water. On a Hajom sliding door, the bottom track collects grit, pollen, and fine debris that will transfer onto the glass if not removed first.

    When the squeegee rubber reaches the frame edge, any dirt on that frame transfers directly onto the glass as a streak. Clean the frame first. Every time.

  2. 2

    Agitate the Glass

    Dip your T-bar applicator fully into the soap solution. On a large Hajom panel, use broad overlapping horizontal strokes to wet the entire glass surface before any part of it starts to dry.

    The goal of this step is to dissolve the dirt and release it from the glass surface. If the dirt is not fully dissolved, the squeegee will drag grit across the surface. On thermally hardened glass with surface particles, dragged grit produces scratches that are permanent. Take time on this step.

    Never clean Hajom glass in direct sunlight.

  3. 3

    Detail the Frame Edges Before Squeegeeing

    Run a dry corner of your cotton rag along the top edge and both side edges of the glass panel before starting the squeegee. This removes pooled soap water sitting on the frame.

    If pooled water stays on the frame, the squeegee picks it up as it reaches the edge and carries dirt back across the clean glass. On a panel several metres wide this compounds quickly.

  4. 4

    The Three Squeegee Turns

    Side to side: start at the top edge with a dry rubber. Work across in a straight horizontal line. Tilt the squeegee so soap water spills from one side only. Wipe the rubber dry after each pass. Overlap slightly into the next line down.

    Top to bottom: the same principle in vertical lines. Start at the top corner with a dry rubber, tilt to direct water downward, wipe the rubber after each line, overlap across.

    The J tune: the professional continuous motion from the top of the panel to the bottom in one smooth, unbroken movement. Your thumb guides the rotation at the end of each horizontal pass. On wide Hajom panels, you may need to change the blade mid-job to keep the rubber fresh.

  5. 5

    Edge Detailing

    After squeegeeing, a thin line of water always remains along the bottom edge and at the sides. Fold a dry cotton rag to a clean corner and detail these edges in a single smooth pass.

    Get your fingertip into the joint where glass meets the seal. If left to dry there, residue shows up as a visible line the moment sunlight hits the panel. Rotate the rag to a clean section every few windows.

  6. 6

    Threshold and Track

    After cleaning the glass, check the hardwood threshold. If it looks dry or feels rough, it needs oil - not just a wipe. Apply clear exterior oil according to Hajom's schedule.

    Lubricate the sliding track with a paraffin wax block or candle stub, running it along the track surface and working the door back and forth to distribute.

Watch the Window Cleaning Manifesto hereSee these techniques in action. Free, 5 minutes, lifetime access.

Pro Tips

  • Never use hard scrapers or abrasive pads on Hajom glass - the thermally hardened surface scratches permanently and damage cannot be reversed.
  • Never use products containing fluoride or phosphoric acid on the glass - Hajom specifically prohibits these as fluoride causes the glass surface to rust.
  • Always clean frames and tracks before touching the glass - grit transferred from the track onto a large panel creates visible scratches across metres of expensive glazing.
  • Oil hardwood thresholds at least twice per year - a dry threshold cracks and voids the warranty. This is a financial decision, not just a maintenance one.
  • Lubricate the sliding track with paraffin wax or a candle stub - Hajom specifically recommends this and it costs almost nothing.
  • Keep records of all maintenance performed - the 10-year warranty is explicitly conditional on following Hajom's care guidelines.

What NOT To Do

  • Do not use hard scrapers on the glass surface. Hajom's thermally hardened glass scratches permanently.
  • Do not use abrasive cleaning products or powder-based cleaners on glass.
  • Do not use any cleaning product containing fluoride. Fluoride causes Hajom glass to rust.
  • Do not use any product containing phosphoric acid on the glass.
  • Do not apply adhesive tape or stickers to Hajom glass.
  • Do not clean the glass in direct sunlight. The solution dries before it can be removed and bakes onto the surface.
  • Do not allow stain, paint, or oil to contact hardware, runners, seals, or glass joints during maintenance. Wipe off any contact immediately.
  • Do not close the door or window before surface treatments are fully dry.
  • Do not leave timber frames unfinished or un-oiled after installation.
  • Do not skip the regular oiling schedule on hardwood thresholds. Dry thresholds crack and void the warranty.

Bundle Kits and Tool Recommendations

Bundle Kit

Orloffs Squeegee Pro Pack flat lay
Pro KitThe full professional setup. Brass squeegees, T-bar with applicator cover, tool belt, rags, soap, and bucket. Everything from the daily tool list in one box.Shop now
Orloffs Squeegee Pro Pack bundled

Tool Recommendations

T-bar applicator with a soft microfibre cover (extended handle for large-format panels)

View on Amazon [coming soon]

Professional squeegee with a fresh rubber blade - 35cm or wider for large panels

View on Amazon [coming soon]

Bucket with lukewarm water and one drop of mild pH-neutral dish soap per litre

View on Amazon [coming soon]

Cleaning Frequency

Glass and frames: 2x per year minimum (Inside and out.). Urban, coastal, or south-facing panels: 4x per year (Quarterly cleaning recommended.). Hardwood thresholds: 2x per year minimum (Spring and autumn oiling with clear exterior oil.). New installations: Immediately after installation (Then twice yearly for the first three years.). Sliding track lubrication: 2x per year (Or whenever the door becomes harder to slide.). EPDM gasket inspection: Once per year (Or after heavy storms.)

Frequently Asked Questions

How often should I clean Hajom windows?
For Hajom windows, Glass and frames: 2x per year minimum (Inside and out.). Urban, coastal, or south-facing panels: 4x per year (Quarterly cleaning recommended.). Hardwood thresholds: 2x per year minimum (Spring and autumn oiling with clear exterior oil.). New installations: Immediately after installation (Then twice yearly for the first three years.). Sliding track lubrication: 2x per year (Or whenever the door becomes harder to slide.). EPDM gasket inspection: Once per year (Or after heavy storms.). Coastal or urban locations may need more frequent cleaning.
What tools do I need for Hajom windows?
Professional cleaning of Hajom windows requires my daily tool list of: T-bar applicator with a soft microfibre cover (extended handle for large-format panels), Professional squeegee with a fresh rubber blade - 35cm or wider for large panels, Bucket with lukewarm water and one drop of mild pH-neutral dish soap per litre, 100% cotton towelling rags for edge detailing, Soft microfibre cloth for frame surfaces, Paraffin wax block or candle stub for track lubrication, Clear exterior oil for hardwood threshold maintenance.
What should I avoid on Hajom windows?
Do not use hard scrapers on the glass surface. Hajom's thermally hardened glass scratches permanently.
Does Hajom publish an official cleaning guide?
Hajom has not published an official cleaning guide. The protocol on this page is based on Justin Orloff's 25 years hands-on experience.
Can I use a water-fed pole on Hajom windows?
Yes, purified water via a water-fed pole is one of the safest methods for Hajom glass. Ensure TDS is at or near zero before use and avoid directing high-pressure water at seals or gaskets.

Field Notes

Glass and frames: minimum twice per year inside and out. Urban and coastal environments, or panels facing south or southwest: quarterly cleaning recommended. Hardwood thresholds and exposed oiled timber: oil a minimum of twice per year, spring and autumn. New installations: oil all timber surfaces immediately after installation, then twice yearly for the first three years. Sliding track lubrication with paraffin wax: twice per year, or whenever the door becomes harder to slide. EPDM gasket inspection: once per year, or after heavy storms.

Justin Orloff