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Construction Site Security & Theft Prevention Guide

How to Use: Walk the entire outside edge of the site at dawn or dusk—thieves scout at these times. Take photos from all four sides. Ask the foreman: “Who has keys? When was the last equipment count?” Mark High (gates open, no cameras), Medium (fenced but dark), or Low (full fence, lights, and tracking) risk. Theft costs over $1 billion each year (National Equipment Register 2025); one stolen $80,000 skid-steer can wipe out a policy savings. Focus on stop, spot, and slow down thieves.


THE BASICS: WHY SITES GET HIT

Construction sites are like open stores full of valuables: $300,000+ in tools and machines every night, no walls, dark corners.

Top Targets (National Roofing Contractors Association 2025):

  1. Copper wire and pipes – $5,000 per truckload
  2. Skid-steers and small excavators – $40,000–$120,000 each
  3. Tools and generators – $50,000 per trailer
  4. Lumber and heating units – easy to carry away

How Thieves Work:

  • Scout on MondaySteal Thursday/FridayGone by Saturday
  • 70% are people who know the site (subcontractors, ex-workers) – National Equipment Register

Your Goal: Make this site harder, louder, and slower to rob than the next one.


INSPECTION CHECKLIST

PERIMETER SECURITY CHECKLIST

Why Check: 9 out of 10 thefts start at fence gaps (National Insurance Crime Bureau).

  • Fencing: 8-foot chain-link, no easy climb panels, no gaps wider than 4 inches
  • Gates: locked with padlock or keypad, closed and latched after hours
  • Signs: “24-Hour Video and GPS Tracking” every 100 feet
  • Plants: trimmed back 3 feet from fence (no hiding spots)
  • Ditch or berm: 2 feet deep around site (stops trucks from driving in)

EQUIPMENT & ASSET PROTECTION CHECKLIST

Why Check: 1 in 4 machines gets stolen each year (LoJack).

  • Locks: keys taken out, fuel shut-off valves locked
  • GPS trackers: on every item worth more than $10,000 (LoJack, Samsara)
  • Anchoring: generators chained to concrete pads
  • Tool trailers: hitch locks and wheel boots
  • Inventory list: weekly photos of serial numbers, saved in cloud

LIGHTING & CAMERA CHECKLIST

Why Check: Good light cuts theft by 80% (Illuminating Engineering Society 2025).

  • Lighting: at least 2 foot-candles on ground, motion-activated floodlights
  • Cameras: 4K quality, 30-day cloud storage, night vision, full view
  • Placement: high on poles (15 feet+), no dark corners
  • Signs: “You Are on Camera” at every entrance
  • Backup power: solar or battery for lights and recorder

ACCESS CONTROL & PEOPLE CHECKLIST

Why Check: 70% of thefts are by people who know the site (National Equipment Register).

  • Sign-in sheet: badge system, photo ID for everyone
  • Subcontractor checks: background review, no one works alone
  • Key control: master log, no extra copies without record
  • Delivery checks: match paperwork, scan driver ID
  • Night guard: random walks or live video monitoring (Deep Sentinel)

EMERGENCY & RESPONSE CHECKLIST

Why Check: Fast alert gets 60% of stolen items back (LoJack).

  • Alarm system: motion and fence sensors, calls police directly
  • Response plan: 24-hour contact list, police arrive in 5 minutes
  • Insurance add-on: scheduled equipment coverage with GPS rule
  • After theft: report to National Crime Information Center within 1 hour, serial number database

QUESTIONS TO ASK FOREMAN

  1. “Who has gate codes or keys? How do you track them?”
  2. “Last equipment count—when and by whom?”
  3. “Any GPS or cameras? Can I see the live view?”
  4. “Ever had a theft or close call? What did you change?”
  5. “Night lighting—does it reach the back of the lot?”

RISK LEVELS

  • High = Open gates, no cameras, tools left out → Suggest attention immediately, fix now
  • Medium = Fenced but dark, GPS on big items only → Add lights and count weekly
  • Low = Full fence, tracked items, live cameras → Best practice

LCA Certified Inspector “Lock it. Light it. Track it.” 

Resources:

  • National Equipment Register Theft Report 2025
  • National Insurance Crime Bureau Construction Guide
  • LoJack Recovery Statistics
  • Illuminating Engineering Society Security Lighting

Disclosure: This guide highlights common risks but is not exhaustive. Always verify local codes and carrier guidelines.

 

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