A standard home inspection is not a mold inspection. A good home inspector will point out water stains, leaks, poor drainage, and anything that looks like mold, but the inspection is visual and does not include testing. The national standards that most home inspectors follow specifically say they are not required to determine whether mold is present.
This guide explains what a home inspection covers, when to add a mold inspection, and what buyers and sellers can do if mold shows up during a sale.
What a home inspector looks at
A home inspection is a visual review of the home's major systems: roof, structure, exterior, plumbing, electrical, heating and cooling, insulation, and ventilation. For mold, the useful part is that it looks for the conditions that cause it:
- Water stains on ceilings and walls
- Active leaks under sinks, around toilets, and at the water heater
- Roof damage, missing flashing, and poor attic ventilation
- Grading and gutters that send water toward the house
- Condensation problems and blocked air conditioning drains
- Signs of past flooding, such as staining low on walls or rusted fasteners
What it does not do is confirm that a substance is mold, measure how far it has spread, or look inside walls. The Standard of Practice of the American Society of Home Inspectors (ASHI) says inspectors are not required to determine the presence of molds and mold-like substances, and the other major national association's standards exclude mold in similar terms. Many inspectors will still note visible suspected growth and recommend further evaluation.
What a mold inspection adds
A separate mold inspection focuses on moisture and growth:
- Moisture meter readings across walls, floors, and ceilings
- A thermal camera scan to find damp areas behind surfaces
- Checks of the attic, crawl space, air handler, and ducts
- Air, surface, or material samples when they answer a real question
- A written report with the location, extent, and likely cause
The EPA notes that when mold is visible, sampling is usually unnecessary, so a good mold inspection is mostly about finding the moisture source and the extent of the damage. See what a mold inspection involves and what a mold inspection costs.
Should you get a mold inspection when buying a house?
It is worth adding if any of these apply:
- A musty smell, especially in closets, the basement, or when the air conditioning starts
- Water stains, bubbling paint, or warped baseboards
- Fresh paint on isolated spots of a ceiling or wall
- A history of roof leaks, plumbing leaks, or flooding
- The home is in a flood zone or went through a hurricane
- A finished basement, a crawl space, or an older air conditioning system
- The home sat vacant with the air conditioning off, which in humid climates can lead to mold throughout the house
- Dehumidifiers running in several rooms during the showing
Schedule it inside the contract's inspection period, alongside the general home inspection, so the results arrive while you can still negotiate or cancel.
What happens if mold is found during a home inspection
Mold found during an inspection is rarely a dead end. Buyers usually have several options:
- Get the facts. A mold inspection and a written remediation estimate turn "possible mold" into a scope and a price.
- Ask for repairs. Request that the seller fix the moisture source and have a qualified company remediate the mold before closing, with written documentation and, ideally, independent clearance testing.
- Ask for a credit or price reduction. Some buyers prefer to hire their own company after closing and take a credit instead.
- Walk away. If the contract's inspection period or contingency allows it, a buyer can cancel. Timing matters, so check the deadlines in the contract.
Also ask the seller for records: past insurance claims, remediation reports, and repair invoices. For a condo, ask the association about leaks or remediation in the building.
If you are selling
If you know about mold or past water damage, deal with it before listing when you can:
- Fix the moisture source, and keep the plumber's or roofer's invoice
- Have the mold professionally remediated if it is more than a small area
- Keep the remediation scope, photos, and any clearance results
- Consider a pre-listing inspection so there are no surprises during the buyer's inspection period
Disclosure rules vary by state, but many require sellers to disclose known material defects. Hiding a known mold problem can expose a seller to claims after closing. A documented, completed repair is usually far easier to sell than an open question.
Who pays?
The buyer normally pays for the home inspection and any mold inspection. Who pays for remediation is negotiated. Sellers often pay for the work or give a credit when mold turns up during the inspection period, but the contract, the size of the problem, and the market all shape the outcome.
Buying or selling in Florida
A few Florida rules matter here:
- Seller disclosure. Under the Florida Supreme Court's decision in Johnson v. Davis, a seller of a home who knows of facts that materially affect its value and are not readily observable to the buyer must disclose them. An "as is" contract does not remove that duty.
- Flood disclosure. Since October 1, 2024, sellers of residential property must give buyers a written flood disclosure at or before signing the contract, covering flood insurance claims and flood-related assistance. Since October 1, 2025, it also covers known flooding during the seller's ownership. Mold often follows flooding, so read it closely.
- Separate licenses. Florida licenses home inspectors and mold assessors separately. A mold assessment done for pay on most jobs over about 10 square feet requires a DBPR mold assessor license, and the assessor generally may not remediate the same home within 12 months.
See our Florida mold guide and local pages such as Naples and Sarasota.
Next step
If you own the home, whether you are preparing to sell or have just closed and found mold, call the number on this page to be connected with an independent local mold inspection company. If you are buying, ask your agent to schedule a mold inspection within your inspection period.