All materials we supply are guaranteed for (1) holiday season. Individual bulbs are not covered, complete strands only. Contact us via our contact form online, email or at (817) 422 9286 and will will correct any lighting problems within 24 hours. We are not responsible for damaged items due to rain, snow, acts of nature, unnatural causes or breakage due to neglect. We are not responsible for damage to or faulty electrical wiring and systems to property as a result from our services. No guarantee on customer provided lights. An insurance plan may be purchased at an additional charge, which covers the entire season.