Can I be successfully sued by a customer for painting a house if they bought the paint and it warped their vinyl siding?

Well, it is going to boil down to "causation" as to what allowed the warped the siding...and to what extent a professional in your field 'knew' or 'should have known' abou the applicaiton of paint on this type of material. Yes, a conversation with an attorney and an industry specialist will be important and your next step. By Grace... Shawn Jackson ESQ. (707) 584-4529  Business Development Attorney EMAIL: Attorneys@CaliforniaBusinessDevelopment.com www.CaliforniaBusinessDevelopmentAttorneys.com www.CaliforniaBusinessDevelopmentCenter.com www.CaliforniaBusinessDevelopmentPlans.com www.CaliforniaBusinessDevelopmentIncubator.com                 No communication resulting herein shall create an attorney-client relationship unless a separate retainer agreement is signed by attorney and client. The information provided neither is  legal advice nor is it conveyed in the course of an attorney-client relationship, but is intended merely as a general overview with regard to the subject matter covered. You should not act upon this information without seeking professional counsel such as any attorney in this office in a subsequent email communication (agreement) and the formation of an attorney client relationship.