Home Maintenance Lifecycle

Every home component has a predictable lifecycle—reliable function followed by increasing maintenance and eventual replacement. Key intervals: HVAC (15-25 years), roofing (20-50 years), water heaters (8-12 years), appliances (10-15 years), exterior paint (5-10 years). Components installed simultaneously create predictable 'replacement waves' at 10, 20, and 30-year marks. Homeowners should budget 1-3% of home value annually for maintenance—below this, deferred maintenance accumulates as invisible debt eventually due with penalty interest (emergency repairs cost 3-5x planned replacements).

When to use it

When purchasing a home and evaluating true cost, when creating a household budget, when deciding whether to repair or replace home systems, or when experiencing 'surprises' that were actually predictable lifecycle events.

How it can help

Converts homeownership from expensive surprises into a predictable schedule. Practically: (1) list all systems with installation dates and expected lifecycles, (2) project replacement dates into a 10-year budget, (3) budget 1-3% of home value annually into a maintenance fund, (4) schedule inspections for systems approaching end-of-life. The lifecycle model helps evaluate purchases: a 15-year-old house with original HVAC is about to enter an expensive replacement wave. Deferred maintenance compounds like debt.