Typical Service Life of Components of Home

All components of a home have a service life expectancy.  Knowing the typical service life schedules of construction materials help homeowners and homebuyers budget for repairs.

What Should Be Replaced Within 15 Years:

Typical Life Expectancy of Components

Expansion tank/Pressure Regulator Valve: 8-12 years
Toilet Flush Assembly and Flange:  7-15 years
Well Pressure system equipment: 8-14 years
Smoke/CO detectors:  10 years
Deck Stains: 3 years
Exterior paint: 5-10 years
Black Corrugated Downspout sub-surface drain pipes: 12-15 years

What Should Be Replaced Within 25 Years:

Typical Life Expectancy of Components

Roof/Skylights/Chimney cap/Flashing:  20-25 years
Gutter system:  20-25 years
Heating and Cooling Equipment:  15-25 years  (How To Determine Age of Your Heating/Cooling Equipment)
Bathroom/Range Exhaust fans:  15-20 years
Water Heater:  15-20 years  (How to Determine the Age of Your Water Heater)
Well pump: 20 years
Kitchen/Laundry Appliances:  12-20 years
Kitchen/bathroom faucets/fixtures:  15-20 years
Electrical switches/outlets/fixtures:  15-25 years
Concrete/patio/asphalt surfaces:  15-25 years
Fireplaces and flues:  15-25 years
Crawl Space Environment (insulation/ventilation/etc.): 15-25 years

What may need repairs/replacement after 25 years?

Unless a full renovation has taken place, typically some repairs  or pending replacement will be needed in the following categories:

Typical Life Expectancy of Components

Siding/trim:  20-60 years depends on material and installation.
Windows/Doors:  15-40 years
Decks: 15-30 years depending on materials and maintenance
Electrical switches and outlets:  20-35 years
Plumbing:  40-80 years
Tub/Shower surrounds: 20-35 years
Septic System: 25-45 years
Finished Basements: 20-30 years

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