SeceuroShield Lintel Security Shutter

The Shellcast Lintel Shutter System

The Shellcast Lintel Shutter System

For maximum security and minimal visual appearance, SeceuroLintel is a roller shutter contained within a structural lintel and conforms to the latest building regulations. 

Installing roller shutters at the build stage provides enhanced security and a discreet, unobtrusive design without having to compromise on features or accessories. Enjoy all the benefits of a roller shutter but without the visual impact associated with traditional built-on designs. 

The system is popular on new-builds but is also suitable for installation on existing buildings.

Structural upstands capable of carrying up to 288Kn

Full cavity insulation

Rigid window head fixing permissible of large windows or sliding doors

Cavities up to 140mm

Guide cap to prevent water ingress

Engineered to be as secure as it is attractive

Hover over the + symbols to discover the benefits of the SeceuroShield Lintel Security Shutter. 

Key Features

  • The shutter is hidden within the wall construction
  • Can accommodate shutters up to 8000mm in a single span (no other structural roller lintel system on the market can offer this)
  • Can be manufactured with shutters up to 6000mm in height
  • Fully CE compliant
  • Meets all building regulations
  • A choice of slat profiles
  • Designed to minimise cold bridging
  • Lintels available in galvanised or stainless steel

Specialist Options

SeceuroFire Flame Shutter installation Green

Arched & Circular Lintels

The lintel shutter is available with bespoke shaped openings, like arches, circular windows or any almost any other shape you can think of.

SeceuroShield Lintel Shutter around two edges of a building ground floor

Corner Lintels

Whether your walls are straight, curved or cornered our lintels can be adapted to suit your design.

SeceuroShield Lintel Shutter with punched slats

Build Types

The Lintel Shutter can be installed on multiple wall construction materials, including traditional brick & block, timber frame, steel frame, steel cladding or pre-fabricated buildings. 

Opening Former Brace

Supplied head brace ensuring accurate opening sizes

Wall Ties

Supplied wall ties if required, alternative fixing methods possible

Cavity Closer

30 minute fire-rated cavity closer with U-values that conform to the latest part L2 Building Regulations

Corner Elbow

These rigid joints form the corners to the Linframe sub-frame to guarantee parallel openings. This ensures that windows can be measured for tight fitting tolerances

SeceuroShield Linframe

The Linframe is an FCS (full closer system). This provides a complete insulated closer for an aperture which closes the bottom of the shutter's guides, allowing a weather seal finish. Rigid UPVC elbows set an opening size to the exact dimensions required. 

Access Panel

Building regulations stipulate that any structural element of a building must be protected from fire. The lintel shutter access panel gives protection, insulation and can be printed to match your internal finish. 

Common Applications

The lintel shutter is popular across many applications due to its low visual impact and its high resistance against attack. Typical installations include:

SeceuroShield Lintel Shutter installed on a Medical Centre

Medical Centres / Veterinary Surgeries

Medical and veterinary centres are often targeted for medical supplied. The lintel shutter provides reliable protection against break-ins

round lintel shutter on building

Educational Buildings

Schools have proven to be vulnerable premises during the holidays and overnight. The lintel shutter provides protection of expensive and vital school equipment when the building is not in use


Commercial Offices with SeceuroShield Lintel Shutter

Commercial Buildings / Offices

Provides effective security and protects high-value IT equipment, essential for the day to day running of most modern companies

SeceuroShield Lintel Shutter Installed on Community Centre

Sports / Community Centres

Often situated in rural or vulnerable locations, a higher level of security is required as these premises can be targeted for their valuables, such as petty cash, vending machines or sports equipment

SeceuroShield Lintel Shutter on Windows

Residential Properties

For peace of mind whilst away or during holidays the lintel shutter protects your property when you need it to but is concealed when not in use, ensuring the appearance of your property is not compromised

SeceuroShield Lintel Shutter Installation on Modern Retail Premises


With large opening widths the lintel shutter is an ideal solution to modern retail premises. Thanks to the discreet design and choice of slat profiles, you can protect your store without compromising on the exterior appearance


Each month we pick out our favourite projects and feature them here. They could be located in an unusual setting, an architectural masterpiece, a creative application of one of our products or just a really good example of our products in situ. Click the link to see some of our featured projects.

View Gallery