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LMT

Catalogue · Security Doors

Certified security doors: security, design and insulation

Anti-intrusion security doors in class RC3-RC4, customisable panels, double seal, thermal and acoustic insulation.

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10
Years of warranty
UNI 11673 compatible
Standard reference
IT + AL
Area served
1500–3500
€/pc approx.

Full technical sheet available in the product catalogue.

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Why choose it

The advantages that really matter.

LMT security doors are certified in anti-intrusion class RC3-RC4 according to EN 1627. Steel structure with double locking, European 6-pin cylinder lock, customisable interior and exterior panels.

Anti-intrusion class RC3/RC4

Tested resistance against break-in attempts with professional tools.

European lock

6-pin cylinder with reversible key and anti-drill protection.

Thermal insulation

Uw as low as 0.9 W/m²K with insulating panels.

Acoustic insulation

Up to 42 dB of noise reduction.

Customisable panels

Solid wood, laminate, glass, metallic finishes.

10-year warranty

On structure, lock and panels.

Technical specifications

All certified, all verifiable.

For every window we provide a full technical sheet with Uw and Ug values, certifications and CE marking.

  • Electro-welded steel structure
  • Anti-intrusion class RC3 or RC4 (EN 1627)
  • European lock, 6-7 pin cylinder
  • Double locking (side bolts + top/bottom)
  • Optional digital peephole
  • Coded reversible key
  • Solid wood, laminate, or fibreglass panels

Italian tax incentives on this product

Ecobonus and renovation-bonus rates change every year. Check the current percentages on ENEA and the Italian Revenue Agency before signing.

FAQ

Frequently asked questions about security doors.

How much does a security door cost?
Indicatively from 1,500 to 3,500 € (made-to-measure supply), depending on anti-intrusion class (RC2-RC4), lock, panels and customisations. Free tailored quote.

What is the difference between class RC2, RC3 and RC4?
RC2 resists attempts with basic hand tools, RC3 with more sophisticated break-in tools, and RC4 with power tools. RC3 is recommended for private homes, RC4 for high-risk areas.

Does a security door provide thermal insulation?
Yes, modern doors have insulating panels that achieve Uw 0.9-1.2 W/m²K, comparable to a good window.

Can I choose the colour of the outer panel?
Yes, panels are available in wood, laminate, and custom RAL finishes. The door can be matched to the colour of your windows.

How long does it take to produce a security door?
Made-to-measure production takes 3-4 weeks from order confirmation. Installation (carried out by the installer) typically takes 4-6 hours once delivered to site.

Can I replace the security door of an apartment?
Yes, we supply made-to-measure security doors to replace existing ones too. We guide you through taking measurements and choosing the model; removal of the old door and installation of the new one are handled by your trusted installer. Replacement doesn't require building work if the opening size is compatible.

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