Your builder likely provided you with a one-year workmanship warranty with the purchase of your new home. This warranty is intended to protect you from paying for issues arising from faulty construction, defective materials, and improper installations. Having your home inspected after the 11th month and before the end of your 12th month of ownership gives you the greatest chance of discovering most issues and presenting them to your builder.
This type of inspection is a full look at your home from top to bottom and everything in between. Things like uneven building settlement, foundation cracks, improperly installed roofing, plumbing leaks, defective appliances, missing insulation, poor quality painting and trim work and more are all common deficiencies found during 11-month warranty inspections.