Office or site
Workplaces, devices and guests receive suitable, separated access.
Stable, traceable connections
Networks, Wi-Fi and VPN
Vendor-neutral planning, installation and support for networks, Wi-Fi, VLAN, VPN and firewalls with clear documentation.
Stable, traceable connections
The practical value for you
Good coverage, sensible separation and documentation reduce outages and insecure workarounds.
Services covered here
- Network assessment and planning
- Data cabling, Wi-Fi and guest networks
- VLAN, firewall and VPN
- Testing, documentation and optional monitoring
What a project can look like
Secure remote access
VPN connects authorised people only to selected internal resources.
Fault or extension
Bottlenecks are isolated and new areas added predictably.
From briefing to operation
1. Briefing
We clarify the goal, current situation, users and essential requirements.
2. Planning
You receive a rough framework for implementation, scope, timing and price.
3. Delivery
The project is built transparently, with regular feedback whenever useful or requested.
4. Handover
The solution is delivered or installed, tested and explained clearly.
5. Improvement
Support for agreed features and later extensions remain available.
What you receive
- An implemented or installed and tested solution
- Documentation, instructions and an access overview on request
- Training for the people involved
- Optional follow-up support, maintenance and improvements
Clear agreements
I handle data and low-voltage technology. Work on 230-volt systems is carried out by a qualified partner. Measurement reports are available on request.
IT-Service Castel
Frequently asked questions
Who is this service for?
Primarily small and medium-sized businesses, facilities and teams. Ambitious personal passion projects are welcome too.
Do you work on site?
Yes. On-site work is available in Berlin and Brandenburg and, depending on the project, throughout Germany. Travel effort and cost are agreed in advance.
How is the price determined?
Billing depends on the task, scope, risk and required support. You receive a transparent framework before work starts; there are no blanket bargain promises.
Can I get help at night or at weekends?
You can enquire at any time. Guaranteed acceptance, response or restoration times apply only when explicitly agreed. Any surcharge is confirmed before paid out-of-hours work starts.
How can I get in touch?
Directly by email, phone, WhatsApp or through the Castel community on Discord. The form only needs your name, email and message.
Selected service: Networks, Wi-Fi and VPN
Discuss your project
Briefly describe your project. I will clarify the goal, scope and most sensible next step with you.