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The $10,867-a-Year Home Maintenance Budget San Antonio Buyers Skip

Zillow and Thumbtack's joint research puts the cost of keeping a home in good working order at about $10,867 a year, and their 1% to 4% rule of thumb scales with the age and condition of the house, while Bankrate's estimate lands near $8,808. The range is wide, but the point is not: the first-year surprise on a San Antonio resale is real, and almost nobody prices it into the offer. Here is the honest maintenance budget before you commit to the payment.

Phyllis Domingo November 3, 2026 6 min read Cost of Living
Exterior of a well-kept single-story brick Texas home at golden hour with a manicured front yard

Zillow and Thumbtack's joint research puts the cost of keeping a home in good working order at about $10,867 a year, and their 1% to 4% rule of thumb scales with the age and condition of the house, while Bankrate's estimate lands near $8,808. The range is wide, but the point is not: the first-year surprise on a San Antonio resale is real, and almost nobody prices it into the offer. Here is the honest maintenance budget before you commit to the payment.

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The numbers, side by side

Different firms measure the same reality with different rulers. Zillow and Thumbtack calculated about $10,867 a year to keep a home in good working order, Thumbtack's own home care index has ranged from about $6,663 to roughly $11,196 across its recent quarterly readings, and Bankrate's estimate of about $8,808 works out to roughly 2% of the national median home price. The classic 1% rule, a dollar a year per hundred dollars of value, now reads as 1% to 4% depending on the age, size, and climate of the house. On a $300,000 San Antonio home, that is a $3,000 to $12,000 a year planning range, and the honest truth is most resale homes in this market sit in the middle of it.

What actually eats the budget in San Antonio

Texas weather does not care about your savings account, and the big-ticket systems here have a shorter working life than the national averages imply.

  • HVAC. The air conditioner runs hard for eight months of the year, and a full replacement runs several thousand dollars. Budget for it, because it will happen.
  • Roof. Hail and summer sun age Texas roofs faster than the 20-to-30-year warranties suggest, and insurance deductibles on a roof claim can run into four figures.
  • Foundation and soil. Expansive clay soils move with drought and rain, and foundation leveling in San Antonio is a real, priced line item, not a rumor.
  • Trees and sewer lines. Mature oaks are beautiful and ruthless about roots, and a sewer-line repair is one of the costliest single jobs a homeowner can face.
  • Water heater, appliances, and the 20 other things that fail on a schedule that has never once consulted your budget.

None of this is a reason not to buy. It is a reason to buy with the line already in the spreadsheet.

Why resale homes need a bigger line than new builds

A new build comes with a builder warranty and new systems, so year one and year two are quiet. A resale home inherits whatever the previous owners deferred, which is why roughly 86% of inspections find at least one issue and why the negotiation statistics keep rewarding buyers who inspect and ask. On a 15-to-30-year-old San Antonio home, the honest planning number is the higher end of the range, and the inspection is where you convert unknown risk into named items with dollar figures.

How to budget honestly

Plan at 1% to 2% of purchase price as the floor, so about $3,000 to $6,000 a year on a $300,000 home, and keep a separate first-year reserve above that for the items the inspection flags. Use the inspection to negotiate: ask for credits or repairs on the real findings, not on a wish list, and sellers in this market are accepting them. If the house is 20-plus years old, have the big systems dated and the roof and HVAC inspected with extra care, because those two items alone can swallow a first-year budget that was never really there.

Phyllis Domingo, San Antonio REALTOR

Written by Phyllis Domingo

REALTOR® · TX License 745926 · 100+ homes sold · Helping families move well in San Antonio and the Hill Country since long before the hard part became normal.

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