SmartConstructAI · Automation Guide

What is n8n?

The workflow automation platform built for people who want power without paying per task — and for businesses that want to own their automation infrastructure.

n8n (pronounced "n-eight-n" or "nodemation") is an open-source, self-hostable workflow automation tool. It lets you connect apps, trigger actions, and automate repetitive tasks using a visual flow builder — without writing code.
How it works
Workflows in 4 Steps
1
Trigger
Something kicks it off — a webhook, a schedule, a new email, a form submission, or a manual click.
2
Process
Data is transformed, filtered, reformatted, or enriched. Conditions and branches control the logic.
3
Connect
400+ integrations: Gmail, Slack, Airtable, Google Sheets, WhatsApp, OpenAI, HTTP requests, and more.
4
Action
Send a message, update a record, generate a report, post a notification, or trigger the next workflow.
Key Concepts
Terms You Need to Know
Node
A single block in a workflow. Each node does one thing — send an email, query a database, run an AI prompt.
Workflow
A chain of connected nodes that together complete a task from start to finish.
Trigger Node
The first node. It listens for an event and fires the workflow when that event happens.
Webhook
A URL that external apps can call to send data into your n8n workflow instantly.
Self-hosted
You run n8n on your own server (e.g. Digital Ocean). Your data stays yours — no per-task fees.
Expressions
Dynamic values using {{"{{"}} }} syntax — pull data from previous nodes into any field.
Construction Use Cases
What Can n8n Do for a Construction Business?
📋
Automated Progress Reports
Pull data from your site diary or P6, format a weekly report, and email it to the client every Friday morning — automatically.
🔔
RFI & Delay Alerts
When a new RFI is logged, notify the responsible party via SMS or Slack within 60 seconds — no manual chasing.
🤖
AI-Powered Site Diary
A supervisor sends a Telegram voice note → n8n transcribes it via AI → formats and stores the daily record automatically.
📊
Subcontractor Onboarding
New subie fills a form → n8n creates their record in your system, sends onboarding docs, and schedules an induction reminder.
💰
Invoice & Payment Tracking
Log invoices via a form, get Slack alerts when payment is overdue, and auto-generate a monthly AR summary.
📅
Schedule Milestone Alerts
Pull milestone dates from P6 → alert the project team 7 days and 2 days before each milestone is due.
n8n vs the alternatives
Why n8n for Construction SMEs?
n8n (Self-hosted)
~$25/month server cost · unlimited workflows · unlimited executions · your data on your server
vs
Zapier
$49–$799/month · charged per task · data on their servers · limited logic
Code-free for common tasks · code-friendly when needed · 400+ native integrations
vs
Make/Integromat: per-operation billing adds up fast at scale
Need help building your first n8n automation?
SmartConstructAI builds workflow automations for construction SMEs — starting from a single workflow.
smartconstructai.com.au