Yes. Adding specific plumbing services to your LSA profile can change the types of leads you receive because Google uses the services you offer to match your business with relevant customer searches. If you add services such as water heater repair, drain cleaning, or sewer line repair, you may become eligible for searches related to those specific jobs.
That can increase lead volume, but it can also change lead quality. You may start receiving requests for services that are different from the general plumbing work you previously targeted. Only add services you actually provide and can handle.
Review your lead history after adding or removing services and compare the number of qualified leads, booked jobs, and revenue from each service. This helps you see which plumbing services are actually worth keeping in your LSA profile.