Feb. 03, 2023 What is the average life expectancy of common household appliances and systems?

When you plan to buy a house, one of the most important things to consider is the useful life expectancy of common household appliances and systems so that you can budget for replacement costs. Knowing the expected lifespan of these will help you make informed decisions, reduce financial stress and simplify home ownership.


The average life expectancy of a dishwasher is 9 years. Regular maintenance including cleaning out filters and clearing draining issues can help increase the life expectancy.

Air Conditioner

An air conditioner has an average life expectancy of 15 years. Keeping your air filter clean regularly and getting annual tune-ups can keep your unit running at optimal efficiency.


On average, a refrigerator typically lasts 13 years. To maximize its lifespan, regularly dust around condenser coils and clean interior gaskets in order to reduce energy use and maintain temperature control.


Furnaces tend to last for about 15-20 years on average. Annual maintenance is key for ensuring consistent heating, but be sure to replace outdated models with more efficient ones as necessary in order to bring down high energy bills associated with dated units.

Water Heater

Most water heaters will last about 10-15 years with regular inspection and maintenance; however, tankless water heaters last up to 20 years on average due to their design which does not have any tanks prone to rust or corrosion over time.

Washer & Dryer

The expected lifetime on washers & dryers normally range from 8 to 15 years depending on quality, brand, etc., but regular maintenance with occasional checks by professionals could extend the lifespan further than averages suggest today.  


All roofs must eventually be replaced regardless of material type used or its condition due to weathering effects over time; however, asphalt shingles offer an average lifetime of 12-20 years while metal roofs could last up to 50+ years depending on proper installation and upkeep including periodic inspections by a certified professional.