Security door or reinforcement: decide after assessing the existing door
Published on 4 August 2026 · Verified on 18 September 2026 · The Mestravaux.lu team
You want to strengthen the entrance while perhaps retaining its appearance. Establish what can remain and what must change first. Reinforcement, an upgraded lock and a complete doorset do not necessarily describe the same work or evidence.
The essentials in 30 seconds
- Assess the existing door before selecting a solution.
- List retained and replaced parts in each offer.
- Check product evidence and fitting conditions.
Distinguish the interventions
Fichet distinguishes reinforcing the retained door from replacing it with a security door. Request a list of retained and new parts: the label alone describes neither frame treatment nor finishes.
| Situation | Blindage existant | Porte blindée neuve |
|---|---|---|
| Dormant sain | possible | possible |
| Dormant faible | peu cohérent | ensemble neuf à étudier |
| Aspect à conserver | avantage | façade à valider |
| Passage étroit | impact limité selon système | cotes à recalculer |
Cette grille prépare la comparaison ; elle ne remplace pas le diagnostic du support et du produit précis.
Have the door and surroundings examined
Report frame movement, rubbing, past repairs or visible cracks without dismantling. Ask whether the existing structure can accept the solution and why. Record required passage and occupant needs. Where appearance is prescribed or others share the decision, clarify required agreement before ordering.
Check the claimed security scope
The Police recommends entrance doors of at least RC2 class. Request evidence for the proposed product.
Your project deserves an accurate estimate — it's free.
Request a quoteCompare work and constraints
Separate removal, possible frame retention, reinforcement, lock, support adaptation and finishes. Request finished passage dimensions and threshold treatment. If acoustic, thermal or fire-resistance functions are needed, request their own evidence; a security promise does not answer these questions.
Arrange handover and service
Request demonstration of keys, locks and opening from inside. Record defects and responsibility for corrections. Keep product reference, promised documents, instructions and key-copy information. Clarify help for jamming and spare parts without assuming round-the-clock callouts are included.
Related guides to continue
- Burglar-resistant windows: define reinforcement and verify the offerStart with your home’s access points and the products actually offered. Distinguish claimed system performance from adding an accessory. Aim for defined protection you can use daily, without promising an opening becomes impossible to breach.Read the guide
- PVC, aluminium or timber entrance doors: compare complete productsStart with required passage, opening direction and appearance. Then request PVC, aluminium or timber models meeting the same brief. Material alone establishes neither a performance ranking nor a comparable price.Read the guide
- Sectional, up-and-over or roller garage doors: check the spaceThe door must work with your car, storage, ceiling and pedestrian access. Before choosing a finish, request its occupied volume throughout movement. Opening width alone cannot select the mechanism.Read the guide
- Understand a window quote: product, work and exclusionsFirst check whether offers describe the same openings and finished result. This guide provides a comparison method, not average prices or a legal contract template.Read the guide
Frequently asked questions
Does changing a cylinder mean full reinforcement?
Have the intervention described precisely. Cylinder-only changes do not describe work on the whole door and frame.
Is reinforcement always cheaper?
Compare complete offers after assessment. No verified local price gap is published here.
Can the landing-side appearance remain?
Have the drawing and any constraints confirmed before ordering. Feasibility depends on the existing door and solution.
Does a security-door label guarantee a class?
Request the document matching the offered reference and configuration. A commercial label is insufficient.
Take action
Your project deserves an accurate estimate — it's free.
Request a quote