12 March 2026 · Video tutorial
The System That Runs a €700K Installation Company (Built with Codex 5.3, n8n)
Discover how a custom-built operational system streamlines a €700K installation company, improving efficiency and reducing delays.
Why Most Installation Companies Stall Without This System
Most installation companies rely heavily on owners for daily decisions, causing delays when owners are busy. This system breaks that pattern by providing a clear operational dashboard that guides teams independently, ensuring continuous workflow and client satisfaction.
How the Custom Dashboard Transforms Daily Operations
The dashboard integrates client management, scheduling, production tracking, and real-time updates. Features like QR code review collection, automated status updates, and priority scheduling reduce manual follow-ups and improve transparency across teams.
Automated Tools That Cut Errors and Save Time
From automatic salary calculations based on attendance and location to inventory tracking with color-coded alerts for missing items, the system automates routine tasks. This reduces human error, prevents missed orders, and ensures accurate payroll processing without manual intervention.
Building and Scaling Your Own Operational System
Using tools like Codex 5.3, n8n, and cloud hosting, this system is fully customizable to specific business needs. It supports secure access controls, integrates with Google Calendar and Drive, and logs all actions for accountability. Business owners can replicate this approach to improve efficiency and reduce supervision.
Questions people ask
How does this system improve client review collection?
The system uses a QR code review stop that workers show clients immediately after service, increasing review rates to nearly 90% by simplifying the feedback process.
Can the system handle employee scheduling and holidays?
Yes, employees can request holidays through the system with built-in limits, and the calendar automatically reflects availability to prevent scheduling conflicts.
What technologies are used to build this operational system?
The system is built with Codex 5.3 for coding, n8n for automation, hosted on Render, and uses Supabase for database management, integrating with Google Calendar and Drive for notifications and file storage.
Need this connected to your business?
Show me the bottleneck.
I will look at the process and tell you the smallest useful first version.
Describe your bottleneckContinue learning
Related tutorials
Understand any AI agent through five parts: brain, hands, memory, goal, and feedback, then apply the model to Claude, Codex, and n8n.
How to Connect Domain Email to Gmail and Automate It with n8nConnect your domain email to Gmail, automate sorting and follow-up with n8n, and never miss a lead again. Step-by-step, actionable guide.
Can Claude Opus 4.7 Turn a Gemini Mockup Into a Real App?How Claude Opus 4.7 built a real app from a mockup—under 100k tokens. See step-by-step tactics, pitfalls, and practical automation tips.