Appliances in new homes typically come with warranties, but the specific terms and conditions can vary depending on the manufacturer and the builder of the home. It is common for builders to include warranties on the appliances they install to provide some assurance to homeowners. However, it's important to review the warranty documentation or contact the builder directly to understand the coverage and any limitations.
Regarding your situation with LG claiming that the warranty does not apply because you did not purchase the appliance personally, it's essential to refer to the warranty documentation provided by LG. Warranty terms can vary between manufacturers, and it's possible that LG has specific policies regarding warranties for appliances installed in new homes. Review the warranty documents carefully or reach out to LG's customer support to clarify their policy and understand your options.