Does my insurance cover glass breakage?

Most Luxembourg home insurance contracts include glass-breakage cover. Fermé-Lux is approved by major insurers: we provide photo report, quote, and direct billing may apply depending on your contract.

Can a foggy glass unit be repaired?

No. Fogging between panes means the butyl spacer seal is broken and the argon gas has escaped. No repair is durable — only insulating unit replacement restores thermal performance. The frame stays in place.

How long for a made-to-measure pane in Luxembourg?

Lead time depends on the glazing: a standard Saint-Gobain or AGC double unit arrives sooner than a Stadip laminated or triple unit. In emergency, Fermé-Lux secures quickly with an OSB board.

Tempered versus Stadip laminated — what is the difference?

Tempered glass (ESG / Securit) breaks into small non-cutting pieces — personal safety. Laminated (Stadip 44.2) stays in place via PVB film — anti-burglary and fall protection. Ground floor and shopfronts require laminated; tempered suffices upstairs.

Which insurers is Fermé-Lux approved by?

We work with the main Luxembourg glass-breakage insurers (Foyer, Bâloise, Axa, Allianz, Lalux). For an accurate diagnosis and contract-adapted quote, request a WhatsApp appointment — the amount depends on glass type, dimensions and frame brand.

Technical guide · 7 min

Broken or foggy glazing: what to do, in what order, with which insurance

Broken, cracked, foggy or whistling glazing: each symptom points to a specific cause and lead time. Fermé-Lux secures the opening on the spot, then orders made-to-measure glass. Approved by Luxembourg glass-breakage insurers.

14symptoms

4urgent cases

Fast7 min

Call +352 35 53 78 WhatsApp — send a photo

Fermé-Lux technician fitting a new insulating glass unit with suction lifters

4 urgent cases

Technical guide

Guide — broken or foggy glazing

Carpentry · 14 symptoms

01 UrgentVery frequentDIY possible

Glazing broken by impact (emergency)

Likely causes

Hail, stone, vandalism45%
Break-in attempt35%
Accidental furniture or ladder knock20%

Solution

DIY fix

Secure with tarp and tape, take photos before cleaning for insurance.

Fermé-Lux intervention

Remove broken pane, fit temporary OSB panel, measure, order made-to-measure glass, final install.

Intervention time · 30 min securing + 5-10 d order

SchücoReynaersSaint-GobainAGC

Parts replaced

Custom-made 4/16/4 argon double glazing· Saint-Gobain, AGC

02 To addressFrequentProfessional intervention required

Cracked glass without impact (thermal shock)

Likely causes

Thermal shock sun then sudden cold55%
Glass manufacturing defect25%
Install stress, missing setting block20%

Solution

Fermé-Lux intervention

Full insulating unit replacement — not repairable. Remove bead, extract pane, fit new on blocks.

Intervention time · 2h install after 5-10 d order

Saint-GobainPilkingtonGuardian

Parts replaced

4/16/4 warm-edge insulating glazing· Saint-Gobain

03 SimpleVery frequentProfessional intervention required

Double glazing fogged between panes

Likely causes

Butyl spacer seal broken60%
End of life unit (15-20 years)30%
Original manufacturing batch defect10%

Solution

Fermé-Lux intervention

Replace insulating unit only — frame stays. Measure, order, install on fresh setting blocks.

Intervention time · 1h30 install after 5-10 d order

AGCSaint-GobainGuardian

Parts replaced

4/16/4 argon low-e double glazing· AGC

04 SimpleFrequentProfessional intervention required

Glazing whistling in strong wind

Likely causes

EPDM seals worn or hardened50%
Glazing bead badly clipped30%
Setting blocks shifted20%

Solution

DIY fix

Check the glazing bead is fully clipped inside.

Fermé-Lux intervention

Remove bead, replace EPDM seals, re-block glass, refit bead.

Intervention time · 1h

SchücoReynaersInternorm

Parts replaced

Peripheral EPDM seals· Schüco

05 SimpleFrequentDIY possible

Persistent condensation on inner face

Likely causes

Indoor humidity too high (> 60%)55%
Aluminium spacer thermal bridge30%
Insufficient room ventilation15%

Solution

DIY fix

Air the room 10 min morning and evening, check MVHR.

Fermé-Lux intervention

Humidity diagnosis, warm-edge spacer proposal if recurrent, MVHR check.

Intervention time · 30 min diagnosis

Saint-GobainAGC

06 SimpleFrequentProfessional intervention required

Peripheral seal broken around glazing

Likely causes

EPDM ageing after 10-15 years60%
Direct prolonged UV exposure25%
Aggressive solvent cleaning15%

Solution

Fermé-Lux intervention

Remove bead, strip old seals, fit new EPDM, refit bead.

Intervention time · 1h per window

SchücoReynaersInternorm

Parts replaced

Peripheral EPDM seals· Reynaers

07 To addressRareProfessional intervention required

Blackened spacer visible in unit

Likely causes

Molecular sieve saturated with moisture65%
Degraded butyl seal25%
Glazing at end of cycle10%

Solution

Fermé-Lux intervention

Replace insulating unit — blackening signals end of life. Fit new warm-edge unit.

Intervention time · 2h install after 5-10 d order

AGCSaint-Gobain

Parts replaced

Warm-edge insulating glazing· AGC

08 UrgentRareProfessional intervention required

Nighttime thermal crack at glass corner

Likely causes

Edge/centre temperature gradient too high55%
Internal blind pressed against glass30%
Incompatible solar film15%

Solution

Fermé-Lux intervention

Replace glass with tempered compatible with blind, advise on blind clearance.

Intervention time · 2h install after 7 d order

Saint-GobainPilkington

Parts replaced

Toughened glazing 4/16/4· Saint-Gobain

09 UrgentFrequentDIY possible

Laminated glazing cracked after break-in

Likely causes

Tool attack on ground floor or shopfront60%
Violent projectile impact30%
Targeted vandalism10%

Solution

DIY fix

Photos for insurance, do not remove remaining shards.

Fermé-Lux intervention

Remove damaged laminate, fit made-to-measure Stadip 44.2 or SP10.

Intervention time · 30 min securing + 7-10 d order

Saint-Gobain StadipAGC Stratobel

Parts replaced

Laminated glazing 44.2 burglar-resistant· Saint-Gobain

10 UrgentRareProfessional intervention required

Shopfront glazing after damage or break-in

Likely causes

Night-time shopfront break-in50%
Vehicle impact30%
Façade vandalism20%

Solution

Fermé-Lux intervention

Emergency wooden-panel securing, order commercial laminate, install on receipt.

Intervention time · 2h securing + 5-10 d order

Saint-Gobain StadipGuardian

Parts replaced

Laminated glazing SP10 display window· Saint-Gobain

11 To addressFrequentProfessional intervention required

Argon gas escaped, Ug degraded

Likely causes

Butyl spacer micro-leak55%
Glazing > 15 years at end of cycle35%
Original assembly defect10%

Solution

Fermé-Lux intervention

Replace insulating unit with argon or krypton triple-glazed per thermal goal.

Intervention time · 2h install after 7-10 d order

Saint-GobainAGCPilkington

Parts replaced

Triple glazing 4/12/4/12/4 argon· AGC

12 To addressRareProfessional intervention required

Stadip / SP10 glazed roof damaged

Likely causes

Violent hail on skylight45%
Falling branch or object35%
Fixing defect on profile20%

Solution

Fermé-Lux intervention

Emergency tarp securing, order safety laminate roof, install with new EPDM seal.

Intervention time · 1h securing + 10 d order

VeluxSaint-Gobain Stadip

Parts replaced

Laminated SP10 roof safety· Saint-Gobain

13 To addressRareProfessional intervention required

Deep scratch on tempered glass

Likely causes

Metal scraper on sandblasted glass50%
Furniture or shutter rubbing30%
Abrasive façade works20%

Solution

Fermé-Lux intervention

Depth diagnosis, tempered replacement if structural — tempered cannot be polished.

Intervention time · 2h install after 10 d order

Saint-Gobain SecuritAGC

Parts replaced

Toughened glass ESG custom-made· Saint-Gobain

14 SimpleFrequentProfessional intervention required

Peripheral silicone cracked and visible

Likely causes

UV ageing silicone 10 years60%
Frame differential expansion25%
Incompatible acidic silicone origin15%

Solution

Fermé-Lux intervention

Scrape old silicone, clean, apply new neutral silicone bead.

Intervention time · 1h per window

SchücoReynaersInternorm

Parts replaced

Neutral silicone facade· Sika

Urgent

NEVER do this

01
Never leave a broken pane exposed for more than 6 hours
Immediate break-in risk and insurance may refuse the claim
02
Never touch tempered glass that has just broken
Thousands of cutting shards — use thick gloves and vacuum
03
Keep all pieces for the insurance expertise
The assessor may require visual inspection before claim payout
04
Air the room 10 min after impact or replacement
Glass dust and residual moisture must be cleared quickly

FAQ

Frequently asked questions

4/16/4 argon low-e reaches Ug 1.1 W/m²K — the retrofit standard. Triple glazing 4/12/4/12/4 drops to Ug 0.6 and is justified on north-facing or passive houses. On south façades, double glazing often keeps beneficial solar gains.

In summary

A broken pane must be secured within the hour to preserve your glass-breakage insurance. A foggy or end-of-life insulating unit is replaced without changing the frame — lead time depends on the glazing. Fermé-Lux prepares the insurance file and handles quote, expertise and install.

1A broken pane must be secured within the hour to preserve your glass-breakage insurance.
2A foggy or end-of-life insulating unit is replaced without changing the frame — lead time depends on the glazing.
3Fermé-Lux prepares the insurance file and handles quote, expertise and install.

Call +352 35 53 78 WhatsApp — send a photo

Technical guide

Other technical guides

Continue your diagnosis with these related guides.

20 symptoms · 9 min

Guide — jammed lock

Next guide

Guide — jammed roller shutter

Back to carpentry

URGENCE

Don't stay locked out

Jammed door, broken glazing,
stuck shutter?

Fermé-Lux steps in fast to secure your home or business. Send us a WhatsApp photo for an instant diagnosis.

Call +352 35 53 78 WhatsApp +352 691 54 54 07

Contact

Guide was helpful? — we can also intervene

If the issue persists, we step in with the right part.

Your need

Your closure is down — rapid repair

Type of closure

Which type of closure is concerned?

Your contact details

So we can get back to you quickly

Quote within 24h

Free, no obligation

Photo diagnosis

Via WhatsApp, no call-out

All brands

Original European parts

Your need

Type of closure

Your contact details

Your closure is down — rapid repair

Step 1 of 3

Broken or foggy glazing: what to do, in what order, with which insurance

Guide — broken or foggy glazing

Glazing broken by impact (emergency)

Cracked glass without impact (thermal shock)

Double glazing fogged between panes

Glazing whistling in strong wind

Persistent condensation on inner face

Peripheral seal broken around glazing

Blackened spacer visible in unit

Nighttime thermal crack at glass corner

Laminated glazing cracked after break-in

Shopfront glazing after damage or break-in

Argon gas escaped, Ug degraded

Stadip / SP10 glazed roof damaged

Deep scratch on tempered glass

Peripheral silicone cracked and visible

NEVER do this

Frequently asked questions

In summary

Other technical guides

Guide — garage door faults

Guide — motorised gate faults

Guide — jammed lock

Guide — jammed roller shutter

Jammed door, broken glazing,stuck shutter?

Guide was helpful? — we can also intervene

Your need

Type of closure

Your contact details

Your closure is down — rapid repair

Jammed door, broken glazing,
stuck shutter?