Once you decide to buy a new home, make your sales contract contingent on a final home inspection by a professional you hire. Never assume that because a home is newly constructed, it isn’t going to have defects. Municipal inspections for code violations are nowhere near as thorough as an independent professional inspection. If possible, have the home checked during each phase of building, when potential problems are easier to spot. If the builder objects to this, consider it a red flag.
Protect yourself with warranties. All new homes come with an implied warranty from the builder stipulating that any major defect of the structural integrity of the home must be repaired. Ask for a builder’s warranty for a period of time following move-in (a year, for example) that covers any defects in craftsmanship. Preferably, this warranty should be backed by insurance.
Home warranties vary in length, what they cover and typically run from one to 10 years; the manufacturer covers appliance warranties. Make sure any warranty you receive explicitly states what is covered and what isn’t, and what the limitations for damages are. For extra peace of mind, have your real estate attorney look over the warranty to make sure it’s kosher.