Detector layouts, zone and expander schematics, panel wiring and device schedules for intruder alarm systems, drafted in AutoCAD to your standards.
We draft intruder alarm drawings for security installers who would rather keep their engineers on site than at a CAD desk. Send the backgrounds and your marked-up detector positions, and we return clean layouts, an overall schematic showing how every zone reaches the panel, and a device schedule that matches both.
We draft to your design and to the grade and standard your project uses, such as EN 50131 grading in the UK and Europe. Detector selection and system grading stay with your designer; our job is to make the drawings consistent, readable and easy to commission from.
Drafters who understand low-voltage and life-safety systems, not just CAD lines.
Your title blocks, layers and conventions, every time.
Delivered in days, quote in one business day.
Accurate, submittal-ready drawings, checked twice.
Backgrounds (DWG or PDF), your markups or design, your title block and the date you need the drawings.
We confirm the sheet list, price and delivery date within one business day, before any work starts.
Your title block, layers and symbol legend. Every sheet goes through a two-stage check.
PDF and DWG, an updated drawing register and a note of what changed since the last revision.
Yes. From your device list we lay out zone numbering and expander allocation on the overall schematic, checked against the panel and expander capacities you give us, and we flag where an expander runs out of inputs.
We draw detector positions with indicative coverage patterns from the manufacturer's data, so gaps are visible on the plan. Final detector selection and positioning stay with your surveyor or designer.
Yes. Many security projects span several systems. We keep device IDs and interfaces consistent across the intruder, access control and CCTV drawings so the set reads as one package.
Yes. Send survey notes, photos or red-line markups and we reissue the layouts, schematic and schedule as a new revision or an as-built set.
Further reading: Intruder alarm drawings: zones and detectors
Send us your scope and we'll come back with a quote and timeline within one business day — confidential, NDA available.