The RV Pre-Purchase Inspection Checklist That Actually Finds Problems

Last updated: September 2, 2026

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By Marcus Rivera, Apex RV Repair · Mobile RV service across Florida · Reviewed September 2, 2026

Buying a used RV is a structural purchase disguised as a lifestyle one. The upholstery, the layout and how clean it is are the things you notice, and none of them are what determines whether this was a good buy.

This checklist is ordered by consequence. If the first section turns up something serious, you can stop - and stopping early is the entire point of inspecting.

What should I check before anything else?

Water. It is the failure most likely to make a coach not worth buying, the hardest to see, and the one the seller may honestly not know about.

1. Smell it before you open a window. Get in and stand still. Musty or earthy means something organic is decomposing out of sight. If the coach has been aired out or has an air freshener working, ask why.
2. Walk the whole floor slowly, including under the bed, in the closets, in front of the shower and at every slide opening. You are feeling for a change in how the floor responds, not for an obvious hole.
3. Press every wall with a flat palm - low, middle and high. Anything that gives, feels spongy or sounds different has separated from what should be behind it.
4. Sight along the exterior walls at a shallow angle. Waves, ripples and bulges are close to invisible face-on and obvious in raking light. That is delamination.
5. Look at every ceiling seam and corner for staining, and at the trim around vents and the air conditioner.
6. Open every cabinet and drawer and check whether they close properly. Doors that catch mean the structure has moved.
7. Get on the roof if it is safe and rated for it, and examine every sealed termination for cracking, lifting and separation.

If you find several of these together, that is enough information to walk away. If you find one, that is the point to bring in a moisture meter - which is what turns a suspicion into a measured boundary. Our water damage article covers what those signals mean in detail.

How do I check the structure and chassis?

Get underneath with a light, or have someone do it. Most of what matters is visible from below.

• Frame and welds. Look for cracks, especially near suspension mounts and at the point where a fifth wheel pin box or a hitch attaches. Look for repairs - a fresh weld or new paint in one small area is a question worth asking.
• Rust. Surface rust on a Florida coach is normal. Flaking, scaling or perforation is not, and coastal storage is where that happens fastest.
• The underbelly. Tears, sagging or areas that have been re-taped often mean somebody has been in there. Ask what for.
• Suspension. Leaf springs, shackles, and equalizers on a trailer. Cracked or flattened springs and worn shackle bushings are common and are not cheap to ignore.
• Slide openings. Look at whether the room sits square in the opening and whether the gap is even all the way around. An uneven gap is a squareness warning.
• Signs of an impact. Look along the sides for a panel that does not line up, and at the roof edges and corners for evidence of a low-clearance meeting.

Structural findings are the ones that end deals, which is why they belong near the top rather than after you have talked yourself into the coach.

How do I read the DOT date code on the tires?

Worth knowing because tires age on the calendar rather than on mileage, and a stored RV in Florida sun ages them faster than the miles suggest.

Every tire carries a DOT identification number molded into the sidewall, and the last four digits are the manufacture date - the first two are the week of the year, the last two the year. So a code ending 3223 means the thirty-second week of 2023. The format and its requirements are set out in the federal tire identification regulations.

Check every tire including the spare, because they are frequently not the same age. Then look at the sidewalls for fine cracking, which is what ultraviolet exposure does over time.

To be straight: we do not sell, fit or repair tires, so this is not us setting up a sale. It is information you should have before you hand over money, because aged tires on a coach you are buying are a real cost that belongs in the negotiation.

How do I test the appliances properly?

The rule is to run everything, in both of the modes it can run in, and to leave enough time to see it actually work rather than just light up.

Systems tested cold from a coach that has been sitting are also worth a second look - things that work for five minutes and fail at thirty are common on a coach that has not been used.

What paperwork should I check?

• Title, in the seller's name. A private sale where the title is in someone else's name, or is missing, is a reason to stop rather than a paperwork detail to sort out later.
• VIN matching between the title, the coach and any registration documents.
• Any lien, and how it will be released at sale. This is the one that most often catches private buyers.
• Service records. Their absence is not a deal-breaker on an RV, but records of roof resealing and appliance work are genuinely valuable.
• Warranty status on anything recent, and whether it transfers - many RV warranties do not transfer to a second owner.
• Recall history by VIN, which is worth checking directly rather than taking the seller's word for it.

For Florida-specific title and registration requirements, the state's motor vehicle department publishes the current rules, and that is the authority rather than whatever a forum post says.

Is a professional pre-purchase inspection worth it?

For a used coach at any real price, the arithmetic is not close. The inspection costs a small fraction of what a single significant water repair costs, and its most valuable outcome is often telling you not to buy.

What an independent inspection adds beyond a careful buyer walk-through:

• A moisture meter, which reads through finished surfaces and finds what pressing with a palm cannot.
• Testing appliances properly and long enough, including in both operating modes.
• Knowing what normal looks like on that model - which failures are typical and which are a warning.
• A written record you can take into a negotiation, which is a very different conversation from an opinion.
• Independence. An inspector who has no interest in whether the sale happens is worth more than one recommended by the seller.

One point worth making plainly: choose an inspector who is not connected to the seller. That is the whole value of the exercise.

What is different about buying a used RV in Florida?

Environment history matters more here than almost anywhere, and it is not visible in the mileage.

1. Sun exposure. A coach that lived outdoors in Florida has aged seals, roof membrane, awning fabric and tire sidewalls faster than the same coach stored under cover. Ask how it was stored and look at the seals to check the answer.
2. Salt. A coastal coach carries corrosion on the frame, fasteners, jack rods and electrical connections. Look underneath and at the jack chrome specifically.
3. Humidity and storage. A coach that sat closed up through Florida summers has had ideal mold conditions. That is where the smell test earns its place.
4. Storm history. Water intrusion from a hurricane may have been repaired well, badly, or not at all. Look for repairs, and ask directly.
5. Snowbird use patterns. Many Florida coaches are used a few months a year and sit the rest. That means low mileage and high sitting time, which is a different wear profile - generators and seals suffer, running gear does not.

Low miles on a Florida RV are not the reassurance they would be on a car. Sitting is its own kind of wear, and this state accelerates it.

Sources and further reading

Every figure above that came from a manufacturer or a standards body is linked here so you can check it yourself.

• 49 CFR Part 574 - Tire Identification and Recordkeeping - The federal regulation that defines the DOT tire identification number, including the date-of-manufacture digits.
• Florida Highway Safety and Motor Vehicles - insurance requirements - State authority on the coverage and registration side of buying a vehicle in Florida.
• Lippert - Master Owner's Manual, Slide-Outs - The squareness tolerance behind the even-gap check on a slide opening.
• Dicor - roof sealant installation instructions - What a properly maintained roof termination should look like, for comparison during a roof inspection.

Related pages on this site

• RV inspections - pre-purchase inspections and moisture surveys
• Spotting RV water damage - the failure most likely to end a deal
• RV roof repair - what a failed roof termination costs to put right
• Book an inspection - mobile across Florida