# Plumbing guides

Plumber Pros has 8 guides on plumbing businesses listed in public registers and member directories, grouped by country.

## General

- [How to choose a plumber and compare quotes](https://plumberpros.fyi/guides/how-to-choose-plumber.md): Check the licence, define the job and compare the written scope before hiring.
- [Lead service line replacement: start with the water utility](https://plumberpros.fyi/guides/lead-service-line-replacement.md): Use the utility inventory and ask who coordinates work on each part of the service line.
- [How plumber licensing works by state](https://plumberpros.fyi/guides/plumber-licensing-by-state.md): Check the business licence and the qualification of the person who will do the work.
- [Prevent frozen pipes before cold weather](https://plumberpros.fyi/guides/prevent-frozen-pipes.md): Find exposed pipes, review insulation and keep a clear plan for cold periods.
- [Sewer repair and camera inspection: ask for evidence](https://plumberpros.fyi/guides/sewer-repair-camera-inspection.md): Get a usable record of the defect and a clear repair scope before approving sewer work.
- [Tankless or tank: choose for your hot water use](https://plumberpros.fyi/guides/tankless-vs-tank.md): Compare demand, installation work and energy use before changing your water heater.
- [Water heater replacement costs: compare the full scope](https://plumberpros.fyi/guides/water-heater-replacement-costs.md): Use a dated US cost reference, then get a local written quote that covers the full job.
- [When do you need a plumbing permit?](https://plumberpros.fyi/guides/when-you-need-plumbing-permit.md): Check the address and the full scope with the local permit office before work starts.