How Long Does It Last?
Replacement-timing guides for the major components of your home — how many years to expect, the warning signs of failure, and when repair stops making sense.
Last updated: July 2026
Lifespan Drives the Repair-or-Replace Decision
Almost every big home-repair question comes down to the same math: how much life is left in the thing you're fixing? A $600 roof repair is a bargain on a 10-year-old roof and a waste of money on a 24-year-old one. Re-stretching carpet, swapping a fence post, or repainting one wall of siding only pays off if the material underneath still has years to give.
That's why knowing typical lifespans matters more than knowing prices. Once you know an asphalt shingle roof is designed for 15–30 years or a water heater for 8–12, you can read your home's age like a maintenance schedule — budgeting for replacements before they become emergencies and skipping repairs that only postpone the inevitable.
Each guide below covers real-world lifespan by material, the warning signs that the clock has run out, and what stretches (or shortens) the number — then links you to the cost guides and calculators to plan the replacement.
How Long Does a Roof Last?
Asphalt shingles last 15-30 years — metal can hit 70. See the signs it's time.
Read the guide →How Long Does Carpet Last?
Builder-grade wears out in 5-7 years; quality nylon and wool push past 15. Know the difference.
Read the guide →How Long Does a Deck Last?
Wood decks last 10-15 years with upkeep — composite runs 25-30+ with almost none.
Read the guide →How Long Does a Fence Last?
Wood fences last 15-20 years, vinyl 20-30+ — and the posts always fail first.
Read the guide →How Long Does Paint Last?
Interior walls go 5-10 years between coats; exterior paint 5-10 depending on sun and siding.
Read the guide →How Long Does Siding Last?
Vinyl runs 20-40 years, fiber cement 30-50, wood 20-40 with diligent painting.
Read the guide →How Long Does a Driveway Last?
Asphalt lasts 15-30 years, concrete 25-50 — sealing and drainage decide which end you hit.
Read the guide →How Long Does an HVAC System Last?
Furnaces last 15-25 years, AC units 12-17, heat pumps 10-15. Timing the swap saves thousands.
Read the guide →How Long Does a Water Heater Last?
Tank heaters last 8-12 years, tankless 15-20+. Replace before it fails, not after it floods.
Read the guide →How Long Do Windows Last?
Vinyl windows last 20-30 years, wood 30+ if maintained — foggy glass means the seal is gone.
Read the guide →Related Resources
Once you know a replacement is coming, price it out with our cost guides, get exact material quantities from the project calculators, or follow a step-by-step project guide if you're doing the work yourself.