# Alarm buying guides

Alarm Installers has 8 guides on security alarm installers and monitoring companies, fire alarm systems, CCTV and access control, grouped by country.

## General

- [Check alarm contractor licensing by state](https://alarminstallers.fyi/guides/alarm-contractor-licensing-by-state.md): Use official starting points and record the licence scope before you hire.
- [How alarm monitoring works and what it costs](https://alarminstallers.fyi/guides/alarm-monitoring-costs.md): Understand signal handling, published plan examples and the full cost of a contract.
- [How to choose an alarm company](https://alarminstallers.fyi/guides/choose-an-alarm-company.md): A practical quote, licence and handover checklist for homes and businesses.
- [DIY vs professional alarm monitoring](https://alarminstallers.fyi/guides/diy-vs-professional-monitoring.md): Separate who installs the system from who receives its signals.
- [False alarm ordinances and permits](https://alarminstallers.fyi/guides/false-alarm-permits.md): Compare Seattle and Calgary examples, then check the rule for your own address.
- [Fire alarm inspection rules: build a site-specific schedule](https://alarminstallers.fyi/guides/fire-alarm-inspection-rules.md): Use the NFPA summary as a starting point and ask the authority for the adopted requirements.
- [UL central station certification: what to ask](https://alarminstallers.fyi/guides/ul-central-station-certification.md): Check the station, certification category and property certificate instead of relying on a badge.
- [Wired vs wireless alarm systems](https://alarminstallers.fyi/guides/wired-vs-wireless-alarms.md): Compare installation routes, maintenance and communication paths without assuming one system fits every building.