Considering residential plumbing in Upland, California? RE Plumbing Services is recorded in this directory for that category; the company can confirm the services it currently handles.
If a supply valve is difficult to operate, describe where it is located and whether nearby connections show signs of moisture. For this type of request, the discussion may involve fixture connections, shutoff valves, visible supply lines, and household drains, depending on the property and the symptoms. Ask what information the provider needs to decide whether a site visit or further inspection is appropriate.
Ask for a breakdown of labor, materials, and any inspection or permit requirements relevant to your situation.