Flipped House Red Flags: 9 Signs a Remodeled Florida Home Is Hiding Big Problems

The house shows beautifully. Luxury vinyl plank through the whole first floor, a white shaker kitchen with quartz counters, new light fixtures, gray paint everywhere, and a bathroom that looks like it came out of a magazine. It hit the market eleven days ago and there are already two offers.

Here's the part nobody in that showing is talking about: none of what you just walked through tells you anything about the roof, the electrical panel, the plumbing inside the walls, the air handler in the attic, or what was behind that drywall before somebody painted it.

Flipping is a real part of this market. Nationally, about 8% of all home sales in the first quarter of 2026 were flips — roughly 64,000 houses bought, renovated, and resold in a single quarter, at a typical gross profit around $66,000. Northeast Florida sees plenty of them, from older Riverside and Murray Hill bungalows to 1970s and '80s ranches in Orange Park, Middleburg, and the Westside.

Plenty of flippers do honest work. Some are excellent. But a flip is a business with a deadline and a budget, and the money goes where buyers look. That's the whole problem: buyers look at finishes, and finishes are the cheapest part of the house.

Here's what I look for when I walk into a house that's been recently remodeled — and what you should be asking before you waive anything.

First, a fair word about flips

Not every renovated house is a trap. I've inspected flips where the investor pulled every permit, replaced the roof and the panel, and did better work than the original builder. I've also inspected owner-occupied houses that were far scarier than any flip.

The issue isn't that a house was renovated. The issue is that a renovation hides the evidence an inspector normally uses. In a house nobody has touched, the story is written on the walls — the stain in the ceiling corner, the rust at the water heater, the scorch mark at the panel. In a freshly finished house, that story has been sanded, primed, and painted over. It didn't stop being true. It just got harder to read.

So you're not looking for proof of a bad flip. You're looking for the gap between what was made pretty and what was actually fixed.

1. The permit history doesn't match the work

This is the single most useful thing a buyer can do, and it costs nothing.

Every county and city building department in Northeast Florida — Duval, Clay, St. Johns, Nassau, Baker, Putnam — keeps permit records, and most of them are searchable online by address. Pull the record and compare it to what you saw.

If the listing says "new roof, new HVAC, updated electrical, fully remodeled kitchen and bath" and the permit history shows nothing in the last three years, that's not a paperwork technicality. It means:

• Nobody from the building department ever looked at the work

• There's no inspection record proving it was done to code

• You may inherit an open or expired permit, which can complicate your closing, your insurance, or a future sale

• If something fails later, you're the owner of record, not the person who did it

Florida law does give local agencies a path to administratively close very old expired permits under certain conditions, but that's a cleanup mechanism — not a reason to shrug at unpermitted work on a house you're about to buy. Unpermitted structural, electrical, or plumbing changes are the ones that matter most.

Ask directly: "Which of these improvements were permitted, and can I see the closed permits?" A reputable flipper will hand them over. Hesitation is information.

2. Fresh paint in one very specific place

Whole-house repaint is normal on a flip. That's not the flag.

The flag is one ceiling corner, one closet wall, one section of garage ceiling, or the drywall under a window that's noticeably fresher than everything around it. Spot priming and painting a single area is what you do when you're covering a stain, not when you're refreshing a house.

Sometimes the leak that made the stain was genuinely repaired. Sometimes only the stain was repaired. From the finished side, those two look identical — which is exactly why I bring a moisture meter and thermal imaging into a flip instead of trusting my eyes. Temperature differences behind the drywall show up on infrared long before they show up on paint. (More on why paint is never just cosmetic: Why Your Home's Paint Is More Than Just Cosmetic.)

3. A $40,000 kitchen and a 22-year-old everything else

Run this comparison on any flip:

What buyers see: kitchen, baths, flooring, paint, fixtures, landscaping.

What buyers don't see: roof covering and decking, HVAC system, water heater, electrical panel, supply and drain plumbing, windows, attic insulation, structure.

The second list is where nearly all of the real money in a house lives. In Florida it's also where your insurability lives — carriers care enormously about roof age, panel type, and plumbing material, and they care very little about your backsplash.

When the visible list is brand new and the invisible list is original, you're not buying an updated house. You're buying an old house wearing new clothes, and the bills for the old parts arrive on your schedule, not the seller's.

Get the ages in writing: roof, HVAC, water heater, panel, re-pipe. "Recently updated" is a marketing phrase, not a date.

4. Electrical tells that DIY work leaves behind

Electrical is where flip shortcuts get genuinely dangerous, and it's also where the evidence is easiest to miss.

Things I find regularly in remodeled homes:

• New outlets and switches on old wiring. A crisp white receptacle in a 1978 wall doesn't mean the circuit behind it changed. Swapping the device is a ten-dollar upgrade; rewiring is not.

• Missing GFCI protection at kitchens, baths, laundry, garage, and exterior — after a remodel that legally should have added it.

• Reversed polarity and open grounds — classic signs someone who wasn't an electrician did the work.

• Added circuits, added can lights, added island outlets feeding a panel that was already at capacity.

• A relabeled panel with the original breakers — new sticker, same 1980s equipment, sometimes a brand no insurer will write.

None of this is visible in listing photos. All of it is testable in about an hour.

5. New flooring installed over a moisture problem

Luxury vinyl plank is the flipper's best friend: fast, cheap, waterproof-looking, and it covers absolutely everything underneath it.

What it covers in Florida is usually one of three things — a slab that wicks moisture, a past plumbing leak that was never dried properly, or subfloor damage around a tub, toilet, or exterior door. Laying new flooring over a wet or contaminated substrate doesn't fix the moisture. It seals it in, and in our humidity that's a mold incubator.

Clues worth noting: a soft or springy spot mid-span, flooring that stops oddly at a doorway, a baseboard that was replaced in only one room, or a room that smells faintly musty in a house that's otherwise brand new inside. That smell matters more than people think — I wrote about why here: Musty Smells in Florida Homes: When It's More Than Just Humidity.

6. Plumbing "updated" only where you can see it

New faucets, new toilets, new supply lines under the sink. Excellent. Now: what material is the pipe in the wall?

In houses from the right eras, Northeast Florida still has plenty of polybutylene, galvanized steel, and cast iron drain lines in service. A flipper can make every fixture look new without touching a foot of any of it — and in the case of polybutylene, insurance carriers will often decline or non-renew the policy regardless of how the bathroom looks. I broke down all three materials, what they look like, and what they cost you here: The Plumbing You Don't Want in Your Florida Home.

Ask whether the house was re-piped, when, and by whom — and whether it was permitted (see #1).

7. Bathrooms and laundry added where there's no real ventilation

Adding a half bath, converting a closet, or moving the laundry indoors are common flip moves because they raise the appraisal. Ventilation is the part that gets skipped, because nobody tours a house and asks where the bath fan terminates.

What I find: fans that vent into the attic instead of outside, fans that were never installed at all, and dryer ducts that were rerouted long, crushed, or into a space they don't belong in. In a Florida attic, dumping bathroom humidity into that space is a reliable way to grow mold on the underside of the roof deck within a couple of summers — and a dryer duct done wrong is a fire issue, not just a moisture one.

8. The attic and the crawlspace never got the memo

Renovation budgets stop where the finished space stops. So the attic and, in older raised homes, the crawlspace, are usually the most honest rooms in a flipped house — the only places still telling you what the house was actually like before the makeover.

Up there I'm looking for: daylight and old roof leaks, decking stains, insulation that was disturbed and never put back, new wiring run by someone who clearly wasn't an electrician, HVAC ducts disconnected during the remodel, missing or damaged vapor barrier, and rot or pest damage at the framing.

If a seller or agent tells you the attic "isn't accessible" on a house that was just fully renovated, treat that as a finding in itself.

9. An "as-is" sale from an owner who never lived there

Florida sellers have a duty to disclose known defects that materially affect the value of a property and aren't readily observable to a buyer. That standard comes from a longstanding Florida Supreme Court decision and it's real — but notice the word known.

An investor who owned the house for five months and never spent a night in it can honestly say they don't know whether the roof leaks in a hard sideways rain, whether the master bath backs up, or whether the air handler struggles in August. Combine that with an "as-is" purchase contract, and the practical result is that the disclosure form protects you far less on a flip than it does on a normal resale.

That's not legal advice — I'm an inspector, not an attorney, and a real estate attorney is the right person for contract questions. But it's a fair way to think about where your protection actually comes from on a flip. It comes from your inspection period.

What to do instead of worrying

You don't need to avoid flips. You need to make the invisible parts visible before your inspection period ends.

1. Pull the permit history for the property from the county or city building department. Free, fast, and it tells you more than the listing does.

2. Schedule the inspection on day one of your inspection period, not day eight. Florida contracts usually give 7–15 days, and you may want time for a follow-up. Here's the full timeline.

3. Get every improvement in writing with dates — roof, HVAC, water heater, panel, re-pipe — and ask which were permitted.

4. Ask your inspector specifically to focus on the remodel: moisture behind new finishes, electrical work behind new devices, ventilation for anything newly added, and whether the mechanical systems match the marketing.

5. If there's any sign of past water — smell, stain, spot paint, soft flooring — get a mold assessment, not a guess. I'm a licensed mold assessor as well as an inspector, so on a flip I can evaluate both the building and the air, which matters when the evidence has been painted over.

6. On an older flip, think about insurability before closing. Roof age, panel type, and plumbing material drive whether you can get a policy and what it costs. I include the 4-point and wind mitigation inspections free with every home inspection — they're insurance inspections, not home inspections, and neither one replaces the other, but on a renovated older home you generally want all three.

7. Attend the inspection. On a flip especially. Standing in the attic while somebody shows you what's actually up there is worth more than any report summary.

Frequently asked questions

Is buying a flipped house a bad idea?

No. Plenty of flips are well done, and a good renovation can be a genuine value. The risk isn't the renovation — it's that new finishes hide the condition of the systems underneath. Verify the work with permits and an independent inspection and you can buy one with confidence.

How can I tell if work on a house was permitted?

Search the address in your county or city building department's permit records — Duval, Clay, St. Johns, Nassau, Baker, and Putnam all maintain them, and most allow an online lookup. Compare the permits on file with the improvements the listing advertises. Ask the seller for closed permits on anything that doesn't match.

Can a home inspector tell if there's mold behind new paint or new flooring?

An inspector can't see through finishes, but the tools go further than the eye does. Moisture meters and thermal imaging identify wet or temperature-anomalous areas behind surfaces, and air or surface sampling by a licensed mold assessor can confirm whether there's a problem the paint is covering.

What's the biggest hidden cost on a flipped house?

Usually the roof or the HVAC system, because both are expensive, both are easy to leave alone, and neither one shows in listing photos. In Florida, roof age also determines whether you can insure the home at all — which can turn a deferred repair into a closing problem.

Should I still get an inspection if the flipper says everything is new?

Yes — especially then. "Everything is new" is a claim, and it usually refers to what you can see. An inspection is how you find out whether it also refers to the parts you can't.

The bottom line

A flip is designed to be persuasive in the twenty minutes you spend walking through it. An inspection is designed to be accurate about the twenty years you'll spend living in it.

If you're under contract on a remodeled home anywhere in Northeast Florida — Jacksonville, Clay County, St. Johns County, or the surrounding counties — get an independent set of eyes on it before your inspection period runs out. Come along and I'll show you the difference between what was fixed and what was covered.

Les Hanna — Certified Master Inspector®, licensed Florida mold assessor. Hanna Home Services, serving Jacksonville and all of Northeast Florida. Same-day reports.