# Inspection guides

Extinguishers has 8 guides on portable fire extinguisher inspection and testing companies, grouped by country.

## General

- [What does an annual extinguisher inspection cost?](https://extinguishers.fyi/guides/annual-extinguisher-inspection-cost.md): Use published US cost ranges carefully and compare the full scope of each quote.
- [How to check an extinguisher company’s license](https://extinguishers.fyi/guides/check-fire-extinguisher-company-license.md): Check the official agency record and the scope of work before you accept a quote.
- [How to choose a fire extinguisher service company](https://extinguishers.fyi/guides/choose-extinguisher-service-company.md): Compare credentials, scope, records and the total quote before choosing a contractor.
- [Fire extinguisher classes and types: A, B, C, D and K](https://extinguishers.fyi/guides/extinguisher-classes-and-types.md): Match the hazard to the label and avoid treating an ABC extinguisher as suitable for every fire.
- [Fire extinguisher inspection rules for business owners](https://extinguishers.fyi/guides/fire-extinguisher-inspection-rules.md): Separate monthly visual checks, annual maintenance and local licensing before you book service.
- [How many fire extinguishers does a business need?](https://extinguishers.fyi/guides/how-many-extinguishers-business-needs.md): Use hazard assessment and walking routes rather than a simple extinguisher count.
- [Kitchen hood suppression inspection: prepare the visit](https://extinguishers.fyi/guides/kitchen-hood-suppression-inspection.md): Separate suppression service from hood cleaning and check the system scope before booking.
- [Monthly, annual, six-year and hydrostatic extinguisher checks](https://extinguishers.fyi/guides/monthly-annual-six-year-hydrostatic.md): Know which service interval applies to which extinguisher before setting reminders.