Home Systems and Repairs: HVAC, Plumbing, Electrical and Appliances

Every home runs on a handful of systems: heating and cooling, plumbing and water heating, electrical, and major appliances. Knowing how long each one lasts and what repairs typically cost helps you budget, decide between repair and replacement, and judge whether a home warranty is worth it.

Typical lifespans (estimates)

• Furnace: 15 to 20 years. Central air conditioner or heat pump: 10 to 15 years.
• Tank water heater: 8 to 12 years. Tankless: up to 20 years.
• Refrigerator, washer and dryer: roughly 10 to 13 years.
• Electrical panel: decades, but older panels may need upgrading for generators, EV chargers or heat pumps.

Latest home systems guides

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  How Long Do Appliances Last? Lifespan Chart and When to Replace
  How long do appliances last? See typical lifespans for major appliances, HVAC and water heaters, warning signs of failure, and when to repair vs replace.
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  Furnace Replacement Cost: What You Will Pay and How to Save
  Furnace replacement cost in 2025: gas, electric and heat pump price ranges, efficiency ratings, installation factors, financing and ways to save.
• 
  AC Replacement Cost: Central Air and Heat Pump Prices Explained
  AC replacement cost typically runs $5,500 to $12,000 installed. See prices by size, SEER2 rating, ductwork, permits, rebates, and when to repair instead.
• 
  Water Heater Replacement Cost: Tank vs Tankless and What Affects the Price
  Water heater replacement cost by type and fuel: tank, tankless, heat pump. See installed price ranges, permits, venting costs and when a warranty helps.
• 
  Appliance Warranty vs Home Warranty: Which Covers Your Appliances Better?
  Appliance warranty vs home warranty: compare manufacturer warranties, extended plans, credit card protection and home warranties to see which fits you.
• 
  Home Warranty for HVAC: What Is Covered and What Repairs Cost Without One
  An HVAC home warranty can cover furnace and AC repairs, but caps, refrigerant limits and ductwork exclusions matter. See coverage and typical repair costs.