On my third house purchase in Texas, I sat across from a seller’s agent who insisted a $9,000 price reduction over “some cracks in the garage” was excessive. It wasn’t the cracks. It was a post-tensioned slab showing a pattern the inspector tied to a plumbing leak that had been running under the foundation for months, with moisture readings in the adjacent wall to back it up. That’s the difference between a defect that reads scary and one that actually moves a number — and after three of these deals, I’ve learned the list of what genuinely changes a price is shorter than most buyers think.
Active moisture intrusion, not old staining
A water stain on a ceiling from a roof leak fixed three years ago is a cosmetic note. Active moisture — a musty smell, elevated readings on a meter, visible mold growth — is a different category entirely, because it implies an ongoing source that hasn’t been resolved. The EPA’s guidance on mold and moisture in homes is blunt about this: mold needs a continuing moisture source to keep growing, so its presence is really a marker that something upstream hasn’t been fixed. That’s what buyers should be pricing, not the mold itself.
Foundation movement with a documented pattern
Hairline cracking in expansive-soil regions like ours is close to universal and rarely worth a price adjustment on its own. What changes a number is a documented pattern — stair-step cracking in masonry, doors that have been planed to close, a slab that’s measurably out of level across a room — especially paired with an inspector’s note that it appears active rather than historic. One or two of those signs alone might be normal settlement. Three or four together, on the same side of the house, is a different conversation.
Electrical panels and wiring that fail current code, not just old code
An older panel brand with a known failure history, aluminum branch wiring without proper connectors, or a subpanel wired without a required disconnect — these aren’t age issues, they’re safety issues, and they typically run $1,800 to $4,500 to correct depending on scope. Buyers often lump this in with “it’s an old house, of course the electrical is old,” but the inspector isn’t flagging age. They’re flagging a specific failure mode with a known fix and a known cost, which is exactly the kind of item that supports a real number in negotiation.
Roof age plus visible deterioration together
An 18-year-old asphalt shingle roof that still looks tight isn’t automatically a negotiating point — asphalt shingles are typically specified for 20 to 30 years, and plenty run past that with no issues. What moves a price is age combined with visible deterioration: granule loss showing bare mat, curling at multiple tabs, flashing pulled away from a penetration. Age alone gets you a conversation about insurance underwriting. Age plus visible failure gets you a repair credit.
HVAC systems near end of life with a failed component
A 14-year-old furnace that’s running fine is a maintenance line item, not a price item — most systems are rated for 15 to 20 years and a working unit near that mark doesn’t automatically justify a credit. A cracked heat exchanger or a compressor that’s already failed is different: that’s an immediate replacement cost, typically $4,000 to $9,000 for a full system, and sellers generally understand that distinction once it’s explained with the actual finding rather than just the unit’s age.
Frequently asked questions
Do inspectors put a dollar figure on defects themselves? Most don’t, and for good reason — pricing repairs is outside a general inspector’s scope. The report describes the defect; buyers or their agents typically get contractor estimates separately.
Is it reasonable to ask for a credit on every item the report lists? No, and asking for one tends to weaken the negotiation on the items that actually matter. Sellers respond better to a short, specific list than a long one padded with minor notes.
What if the seller disputes the inspector’s finding? A second opinion from the relevant trade — a roofer, an electrician, a foundation specialist — is the normal next step, and it’s a stronger position than arguing over the inspection report itself. Moisture readings are one of the most commonly disputed line items, and understanding what those numbers actually represent heads off a lot of that back-and-forth before it starts.