Do you have a security challenge you cannot solve? Contact us:

office@blackgraben.atand+43 1 236 632 6 455
Black Graben Logo Black Graben specialist security solutions Insured byAllianz- including armed operations
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Insured byAllianz- including armed operations
Construction Site Security

Before the next night costs you your materials

For site managers, developers and general contractors who know: an unsecured construction site weekend can cost more than an entire construction phase. Site guarding, before the damage happens.

Secure your construction site
Insured by Allianz – including armed deployments
20+ years of international experience among our founders
Operating throughout Austria
Our Clients
Specific names remain confidential.
Executives & Corporations
Diplomatic Missions
High-Net-Worth Individuals
Public Figures
Events & VIP Guests
Critical Infrastructure
Institutions & Public Authorities
Executives & Corporations
Diplomatic Missions
High-Net-Worth Individuals
Public Figures
Events & VIP Guests
Critical Infrastructure
Institutions & Public Authorities
The Situation

What unsecured construction sites really cost

Damage on construction sites rarely happens during working hours – it happens exactly when nobody's there.

01

Theft costs time and money

Missing tools or stolen machinery mean standstill – and standstill can mean contractual penalties in the worst case.

02

Accident risk and liability

Who's liable if someone is injured on your unsecured construction site? That's not a question to answer only after the fact.

03

Vandalism on unguarded weekends

Two days off are enough to undo weeks of preparation – and jeopardize the entire project schedule.

The Black Graben Approach

Guarding that follows your construction progress

Our specialized construction site security team provides comprehensive protection against theft, vandalism and unauthorized access. We make sure your site stays secured at all times and your project runs smoothly.

A construction site's security needs change with every phase – from excavation to handover. Our deployment plan grows with it, instead of staying rigid.

Mobile and stationary patrols

Scaled flexibly to site size and risk level – throughout the entire construction period.

Access control for suppliers

Only registered parties get onto the site – traceably documented.

Night and weekend duty

Present exactly when regular site staff aren't there.

Combined with surveillance technology

Patrol duty and modern sensors complement each other instead of replacing one another.

„Non sine periculo“
Not Without Danger

Four elements define a true professional in the security industry: formal education, continuous training, extensive experience, and unwavering commitment.

Who's Behind Black Graben

International experience you won't find elsewhere in Vienna

Construction sites are environments with constantly shifting risks – exactly the terrain where operational experience from high-risk deployments makes the difference.

Tomo Babic, Gründer und CEO von Black Graben
Founder & CEO

Tomo Babic

Over 20 years of experience building and implementing strict security protocols in demanding, constantly changing environments worldwide.

Sasa Kecman, Mitbegründer und COO von Black Graben
Co-Founder & COO

Sasa Kecman

Directed multi-million dollar projects in Iraq and led diverse teams under difficult conditions – experience managing shifting risks that translates directly to construction site protection in Austria.

Allianz Versicherung
Insured by Allianz – including armed deployments
WKO Wien Mitgliedschaft
Member of the Vienna Chamber of Commerce, Security Trade § 129 GewO 1994
Scope of Services

What's included in Black Graben's construction site security service

Black Graben Compared

A fair comparison to standard guarding services and generic security providers – no names, just concrete criteria.

Other Providers
  • Team experienceUsually standard training with no international practice
  • Insurance coverageOften basic liability coverage only
  • DocumentationFrequently incomplete or non-existent
  • Deployment hoursFixed hours regardless of construction progress
Black Graben
  • Team experience20+ years international, UN, OSCE, US government
  • Insurance coverageAllianz, including armed deployments
  • DocumentationFully digital, always available
  • Deployment hoursFlexible per construction phase, including weekends

How We Work Together

1

Site walkthrough

A joint assessment of access points, storage areas and risk zones.

2

Risk assessment per phase

Security needs are reassessed for every phase of the project.

3

Deployment plan

Concrete patrol times and access rules for your site.

4

Ongoing adjustment

The concept grows with construction progress and changing risks.

Frequently Asked Questions

Common questions about construction site security

Is guarding worthwhile for smaller sites too?

Yes – our concept is scalable. Even smaller projects benefit from access control and night duty when material or equipment value justifies it.

Can you flexibly respond to construction progress?

That's exactly what our concept is designed for. We continuously adjust patrol intervals and deployment hours to the current construction phase.

Do we get proof for our insurance in the event of a claim?

Yes, all patrols are documented. We provide these logs to you and, if necessary, to your insurer.

Get in Touch

Get your construction site secured

Tell us the location, construction phase and approximate on-site material value – we'll follow up with a concrete proposal for patrol schedules.

+43 1 236 632 6 455
Monday – Friday: 8:00 AM – 5:00 PM  |  Saturday: 8:00 AM – 12:00 PM
All inquiries are handled discreetly and in strict confidence.