ServiceNomad RV · Knowledge

RV Pre-Purchase Inspection Basics

Buying a used RV can be an exciting adventure, but it's also one of the largest purchases most people make. A thorough pre-purchase inspection helps you identify major issues that could cost thousands to repair, giving you negotiating leverage or the confidence to walk away from a problematic unit. Whether you're shopping for a Class A motorhome, a fifth wheel, or a lightweight travel trailer, understanding what to look for before signing can save you from costly surprises and keep you safe on the road.

Why Pre-Purchase Inspections Matter

RVs are complex machines with plumbing, electrical, HVAC, and structural systems that all need to work together. Unlike a house, they travel down the highway at 65 mph, experience constant vibration, and face extreme temperature swings. This wear and tear creates failure points that aren't always obvious during a casual walk-through. Water damage from old roof leaks, hidden electrical issues, or a failing generator can turn a great deal into a money pit. A proper inspection—whether you do it yourself or hire a professional—gives you a realistic picture of what you're buying and helps you budget for repairs or negotiate a lower price. Many buyers skip this step and end up spending more on repairs in the first year than they would have spent on a pre-purchase inspection.

Major Red Flags to Look For

Start with the roof. Look for soft spots, cracked sealant around vents and AC units, and any signs of previous patch jobs. Water damage often shows up as discolored ceiling panels, soft walls, or a musty smell inside. Check the floors for soft spots, especially around the toilet, shower, and entry door. Turn on every light, outlet, and appliance—test the AC, furnace, water heater, and refrigerator in all modes. Slide the slideouts in and out several times and listen for grinding or uneven movement. Check the tires for age (look for the DOT date code on the sidewall) and any signs of dry rot or uneven wear. Pop the engine cover on motorhomes and look for fluid leaks, corrosion, or obvious neglect. Run the generator under load and listen for rough running or unusual noises. These checks take time but can reveal deal-breakers before money changes hands.

How a Professional RV Inspector Helps

A professional RV inspector brings experience, specialized tools, and an unbiased eye to the process. They'll use moisture meters to detect hidden water damage, test electrical systems with multimeters, and check the propane system for leaks. They'll inspect the frame, axles, and suspension components for rust, cracks, or improper repairs. They'll run the roof AC under load to check amperage draw and test the water pump for proper pressure. A good inspector will also check the awning, entry steps, and appliances, and provide you with a detailed written report that you can use to negotiate or decide whether to proceed. The cost of an inspection (typically a few hundred dollars) is small compared to the peace of mind and potential savings. If you're buying from a private seller or a dealer who doesn't offer a thorough PDI, hiring an independent inspector is one of the smartest investments you can make.

When to Schedule a Professional Inspection

If you're serious about a specific RV and the seller agrees to let you have it inspected, schedule it as soon as possible—ideally before you make an offer or put down a deposit. If the seller refuses an inspection or seems evasive about letting you test systems thoroughly, that's a red flag in itself. For newer RVs under warranty, you might feel comfortable with a less detailed inspection, but for anything over 5 years old or with significant mileage, a professional inspection is highly recommended. If you're not experienced with RVs and don't feel confident identifying problems yourself, the inspection fee is well worth it. Even if the report comes back clean, you'll have documentation of the RV's condition at the time of purchase, which can be valuable for warranty claims or future resale.

💡 Prevention Tips

  • Never buy an RV without testing all major systems—AC, heat, hot water, fridge, and generator.
  • Walk the roof if it's safe to do so, or ask the seller for recent photos showing the roof condition and sealant.
  • Bring a flashlight and moisture meter if you have one—check areas prone to leaks like windows, doors, and slideout seals.
  • Ask for service records and documentation of any major repairs or upgrades.
  • If you're not confident in your inspection skills, hire a professional RV inspector before signing anything.

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