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This Building Is Alarmed Signs
This Building Is Alarmed Signs combine a clear alarm message with a general warning pictogram to show that security protection is in use. They help you alert visitors, contractors and people approaching entrances, perimeter walls or access points before they reach the building.
Where To Display This Building Alarm Warning
Install the sign where people can see it before reaching the premises: main entrances, service access points, reception approaches or visible perimeter walls. Keep it on the normal line of approach, above clutter and clear of doors, gates or foliage that could hide the warning.
Choosing A Practical Viewing Distance
Choose the size by how early the message needs to be read. The 100 x 250 mm option suits close entrances and short approaches; 300 x 500 mm suits longer sightlines. Treat these as practical ranges and reduce them where lighting, angle or visual clutter affects legibility.
| Size option | Practical viewing range | Best suited to |
|---|---|---|
| H 100 x W 250 mm | Approx. 2–5 metres | Doors, entrances and close approach points |
| H 300 x W 500 mm | Approx. 6–12 metres | Perimeter walls and longer building approaches |
What Should Change Once The Alarm Warning Is Visible
A well-positioned alarm warning should change behaviour before someone reaches an entrance: visitors understand that security measures are present, contractors are less likely to mistake an access point for an unrestricted route, and casual intrusion is discouraged.
This Building Is Alarmed Sign Specifications
- Sign message: “This building is alarmed”
- Purpose: warns approaching people that the building is alarmed
- Sign type: warning
- Pictogram: ⚠ General warning symbol
- EN ISO 7010 code: W001
- Symbol conformity: ISO 7010 where applicable
- Shape: rectangle
- Orientation: landscape
- Material options: Rigid Plastic, Vinyl
- Size options: H 100 x W 250 mm, H 300 x W 500 mm
- Finish: glossy film surface / satin
- Photoluminescence: non-photoluminescent
- Reflectivity: non-reflective
- Background colour: yellow
- Text colour: black
- Symbol colour: black
- Display area: indoors / outdoors
- Where to use: building entrances, access points and perimeter walls
- Fitting method: wall mount
- Rigid Plastic fixings: fixing materials sold separately
- Vinyl fixing: self-adhesive backing
- Material thickness: varies by material
- Supplied: single
- Format: symbol and text
Installation Guidance
Frequently asked questions
Should I use this sign or a door-specific alarm warning? If only a particular door is alarmed, choose wording that identifies that door. Use this building-wide message when the broader premises warning accurately reflects your security arrangement.
Which size should I choose? Use H 100 x W 250 mm where people will read the message close to an entrance. Choose H 300 x W 500 mm where you need earlier recognition across a longer approach.
Should I choose Rigid Plastic or self-adhesive Vinyl? Vinyl is useful where you have a clean, smooth mounting surface. Choose Rigid Plastic where you want a separate wall-mounted panel; suitable fixing materials are purchased separately.
Will this sign replace an alarm or other security measures? No. It is a visual warning and deterrent only. The wording should reflect the security arrangements actually in place at your premises.
Can I rely on this sign in darkness? No. The supplied options are non-photoluminescent and non-reflective, so install the sign where normal daylight or artificial lighting keeps the message clearly visible.
Features and Benefits
- ✓ Combines a general warning pictogram with direct alarm wording for fast recognition
- ✓ Uses strong yellow-and-black contrast to separate the warning from surrounding information
- ✓ Landscape design gives the symbol and message clear visual space on approach
- ✓ Offers a close-range format and a larger option for longer building sightlines
- ✓ Makes the presence of an alarm clear before someone reaches an entrance
- ✓ Helps discourage casual unauthorised access without overstating what the sign can achieve
- ✓ Gives visitors and contractors an immediate security cue around unfamiliar premises
- ✓ Helps you match visibility and installation method to the actual location rather than choosing blindly
Compare Site Security Warning Options
For visible monitoring information alongside an alarm message, compare the 24 hour surveillance warning sign for a different security approach. It helps you choose wording that best matches the protection already in place.
Where perimeter protection also needs to be made clear, consider anti-climb product warning signs as a related option. Useful when you want visitors to recognise a physical security measure before approaching it.
If your boundary uses barbed wire, the caution barbed wire warning signs provide a more specific hazard message. This makes it easier to match the wording to the actual perimeter risk.
For other risks around your premises, browse the hazard warning safety sign range before deciding what else needs highlighting. It gives you a broader route to compare warning messages by hazard type.
Estimated Delivery Day
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Based on an estimated 3 working day delivery timeframe from today, excluding weekends and bank holidays. Delivery dates are provided as a guide only and may vary depending on the product ordered, stock availability at the time of purchase, production or printing lead times.



