Technical (functional) doors repair
Hydraulic door closer that leaks or slams, cylinder stuck on a plant room door, lock worn out from thousands of cycles, crushed seal: functional doors undergo heavy use and fail without warning. Targeted replacement of Geze/Dorma closer, cylinder, lock and seals. Multi-brand (Geze, Dorma, Fuhr, KFV, Winkhaus, Kaba).

Technical (functional) doors
Slamming closer, stuck cylinder, heavy-duty door: SAV
Servicing, maintenance, adjustment and repair Technical (functional) doors
Sur chaque panne, nous identifions la pièce défaillante et la remplaçons seule — sans toucher au reste de l'installation.
Problem with lubrication on your technical door in Luxembourg?
→ Lubrication
Targeted repair, original parts — on all European brands.
- 01
Lubrication
- 02
Lock replacement
- 03
Cylinder replacement
- 04
Hinge replacement
- 05
Seal replacement
- 06
Handle replacement
- 07
Door closer replacement
- 08
Smartphone home automation
Non-exhaustive list. Symptom missing? Send us a photo via WhatsApp — remote diagnosis in minutes.
The brands we work on
Multi-brand — we repair the entire European market with original parts.


- Fuhr
- KFV
- Geze
- Dorma
- Kaba
- CES
- Iseo
- Eff Eff
What our clients say
“Great service on my garage door! Thanks to Luis and his team for the work! Highly recommend!”
“Fast and flawless repair for two issues on my Hörmann garage door (motor and guide rail replacement). Excellent admin (Sandrine) and technical (Peter) staff.”
“Very satisfied with the installation of my garage door by Fermé-Lux. Clean, fast work with real craftsmanship.”
“A truly committed company that genuinely took it upon themselves to solve my garage door issue. The only ones who really tried to help me. I can only recommend without hesitation.”
“Top service! Exemplary responsiveness, professionalism and speed. Friendly staff. I recommend them 100%.”
“Responsive and professional, no time wasted on long discussions. Relevant analysis, clear questions, anticipation to stay flexible. Very satisfied with the follow-up.”
“Great service on my garage door! Thanks to Luis and his team for the work! Highly recommend!”
“Fast and flawless repair for two issues on my Hörmann garage door (motor and guide rail replacement). Excellent admin (Sandrine) and technical (Peter) staff.”
“Very satisfied with the installation of my garage door by Fermé-Lux. Clean, fast work with real craftsmanship.”
“A truly committed company that genuinely took it upon themselves to solve my garage door issue. The only ones who really tried to help me. I can only recommend without hesitation.”
“Top service! Exemplary responsiveness, professionalism and speed. Friendly staff. I recommend them 100%.”
“Responsive and professional, no time wasted on long discussions. Relevant analysis, clear questions, anticipation to stay flexible. Very satisfied with the follow-up.”
“Great service on my garage door! Thanks to Luis and his team for the work! Highly recommend!”
“Fast and flawless repair for two issues on my Hörmann garage door (motor and guide rail replacement). Excellent admin (Sandrine) and technical (Peter) staff.”
“Very satisfied with the installation of my garage door by Fermé-Lux. Clean, fast work with real craftsmanship.”
“A truly committed company that genuinely took it upon themselves to solve my garage door issue. The only ones who really tried to help me. I can only recommend without hesitation.”
“Top service! Exemplary responsiveness, professionalism and speed. Friendly staff. I recommend them 100%.”
“Responsive and professional, no time wasted on long discussions. Relevant analysis, clear questions, anticipation to stay flexible. Very satisfied with the follow-up.”
Leaking Dorma closer, failed intumescent seal,
EI compliance back on track?
Replacement of Dorma/Geze closer, intumescent seals, Assa Abloy master-key cylinder and periodic inspection on plant rooms or boiler rooms. Signed compliance report for your inspection body.
Other services in the same category
Door sagging, multi-point lock jammed, cylinder forced, door closer leaking: repair multi-brand.
Entrance doors
Sagging door, jammed multi-point lock, forced cylinder: SAV
- Lubrication
- Lock replacement
- Cylinder replacement
- Hinge replacement
Secondary doors
Cellar door stuck, seized lock, worn seals: troubleshooting
- Lubrication
- Lock replacement
- Cylinder replacement
- Hinge replacement
Apartment landing doors
Leaking closer, jammed lock, sagging hinges in condominiums
- Lubrication
- Lock replacement
- Cylinder replacement
- Hinge replacement
Your Technical (functional) doors down? Same-day rapid repair
Call us, send a photo via WhatsApp, or fill in the form.
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
So we can get back to you quickly
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