I need to sort out a few plumbing problems at home and I am not sure how to pick a company. How do you usually check that a plumbing service is reliable before you agree to any work? Real experience would help a lot.

I went through something similar last year when a small leak turned out to be a bigger issue than expected. What helped me most was comparing a few plumbing companies instead of calling the first one I found. I looked at how clearly each of them described warranty coverage and what a satisfaction guarantee really included, because some explain almost nothing. For an example of how a full service list can be laid out, from leak detection and pipe repair to tankless water heater installation and whole house repiping, the link can be used to compare wording with other companies you are considering. In the end I picked the option where timelines and terms were stated plainly.