How Much Should You Budget for Home Maintenance?
The Real Numbers

The longer answer is more useful, because averages hide the thing that actually wrecks budgets: maintenance costs are lumpy. You'll spend $800 one year and $14,000 the next, and the $14,000 year is the one that matters.

The 1% rule:budget 1% of your home's purchase price per year. A $400,000 home means $4,000 a year set aside. Simple, and roughly right for a newer home in a mild climate.

The square footage rule: budget $1 per square foot per year. A 2,200 square foot home means $2,200 a year. This one travels better across markets, because maintenance costs track the size of the house more than its price.

Both rules are starting points, not answers. A 5-year-old home and a 35-year-old home of identical size and price have completely different maintenance realities.

Age of major systems.This dwarfs everything else. Roofs last 20-30 years, HVAC 15-20, water heaters 8-12. If your home is 12 years old with all original equipment, you're entering the decade where most of it comes due. Budget toward 3-4%, not 1%.

Climate. Freeze-thaw cycles, coastal salt air, hail regions, and heavy tree cover all accelerate wear on roofs, siding, and exterior systems.

Deferred maintenance you inherited. If the previous owner skipped a decade of upkeep, your first years will run well above any rule of thumb. Your inspection report is the map of that inherited backlog.

One-story vs. two-story, slab vs. crawlspace, city vs. well and septic. Complexity adds cost. A well pump and septic system are two more five-figure components on the clock.

The reason to budget isn't the $200 annual stuff. It's the big replacements.

Roof replacement runs $9,000-25,000 depending on size and material. Full HVAC replacement runs $7,000-15,000. Water heater replacement runs $1,500-3,500 ($4,000-6,500 for a tankless conversion). An exterior repaint runs $4,000-12,000. Major appliance replacement runs $800-3,000 each, and you own five to seven of them.

Every one of these has a roughly predictable lifespan. Which means the year they'll hit is roughly predictable too, if anyone is tracking the ages.

What actually matters

The big expenses are not surprises. They're scheduled events with unknown dates, and the dates become knowable the moment someone writes down how old each system is.

Step 1: List your major systems with their ages. Roof, HVAC, water heater, major appliances, exterior paint, and anything special (pool equipment, well pump, septic). Your inspection report has most of the install dates.

Step 2: Flag anything in the last third of its lifespan.Those are your next five years of big expenses. Price them at today's replacement cost.

Step 3: Set the monthly number. Take your five-year projected total, divide by 60, and automate a transfer to a separate savings account. For most homes this lands between $250 and $600 a month.

A separate account matters. Money labeled “home” doesn't get spent on vacation, and when the water heater dies on a Sunday you make a calm decision instead of an emergency financing decision at 24% APR.

Step 1 and step 2 are the steps people never do, because the information lives in a dusty inspection PDF and a folder of appliance manuals. BTLR reads your inspection report, tracks the age and condition of every major system, and shows you what's coming and roughly when. The budget stops being a guess and becomes a schedule.

The homeowners who never have a financial emergency aren't lucky. They just knew what was coming.

Know what's coming before it hits your wallet.

Upload your inspection report, get your BTLR Score, and see every major system's age and condition in one place.

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