Most major systems should be inspected at least once a year. HVAC systems should receive annual service, while plumbing, electrical, roofing, and attic inspections can often be completed during your seasonal home maintenance routine or whenever you notice signs of a problem.

Watch for unusual noises, water leaks, reduced airflow, flickering lights, higher utility bills, unpleasant odors, rust, moisture, or inconsistent performance. These early warning signs often indicate a problem that should be addressed before it becomes more serious.

Many routine inspections are homeowner-friendly, such as replacing HVAC filters, checking visible plumbing connections, testing GFCI outlets, or looking for roof damage from the ground. If you discover anything concerning—or if the inspection requires accessing electrical components, roofing, or specialized equipment—contact a qualified professional.

Start with the systems that affect your home's safety and daily comfort: your HVAC system, plumbing, electrical system, roof, and attic. Use a seasonal checklist to stay organized and inspect one system at a time instead of trying to do everything at once.