Five Findings That Should End a Used Coach Viewing

Most things wrong with a used coach are a price negotiation. A tired roof, worn seals, a dead appliance, cosmetic damage, faded paint. All of it has a number and you can put that number against the asking price.

Five findings are different, and on those the right move is usually to leave.

1. Frame or chassis deflection

Symptoms visible in twenty minutes: the coach dog tracking behind a tow vehicle, uneven tyre wear that returned after an alignment, doors binding at one corner, a visible sag or ripple in a frame rail, cracked welds at crossmember joints.

Why it ends the viewing: it can be corrected, at $750 to $20,000 and up, but the vehicle is only worth buying if it measures correctly afterwards and you will not know that until you have paid for the attempt. That is a substantial bet on someone else's accident.

There is also the resale problem. A coach with corrected frame damage carries that history permanently.

2. Extensive rot in lauan substrate

Symptoms: large soft areas on tap testing, staining on interior panels, a musty smell, visible swelling at panel edges, and screws that will not hold.

Why it ends it: lauan rot is not a repair, it is substrate replacement, and once it is extensive it means the skin comes off across large areas, the framing gets inspected and frequently repaired, and the whole assembly is rebonded. That is $2,500 to $25,000 and up per affected wall, and on a coach where one wall has gone the others usually have the same history.

Composite substrate is a different conversation and much more often worth taking on. Establishing which substrate the coach has is therefore the highest value ten minutes of a viewing.

3. A soft roof underfoot

Symptoms: any give, flex or sponginess when you walk on it. Ceiling staining or panel sag inside, particularly in the front third. Fasteners that will not hold.

Why it ends it: a soft roof means the decking has failed, which means full roof replacement including decking at $4,500 to $22,000 and up. But it also means water has been sitting in the structure long enough to destroy plywood, and water that destroyed decking has been running down inside the walls and into the floor for the same period.

A soft roof is almost never the only finding. It is an indicator of the other two.

4. Multiple racked slide openings

Symptoms: slides that bind, hesitate or stall, one side leading the other, gaps at one corner when closed, uneven seal compression, staining at the floor edge.

One slide with a geometry problem is a repair at $1,500 to $7,500 for structural work plus mechanism and seals. Two or three is different, because openings do not rack independently. Multiple racked openings means the whole structure has moved, from chassis flex, from prolonged storage on uneven ground, or from water damage in the floor.

At that point you are not buying a slide repair. You are buying a structural unknown.

5. A previous structural repair done badly

Symptoms: filler where there should be laminate, which tap testing finds. Plates welded over frame cracks. Panel gaps that do not line up. Overspray in places that indicate a repair nobody mentioned. Paint that does not quite match on one panel.

Why it ends it: because you are now buying two problems. The original damage, which was worse than you were told, and a repair that has to be undone before the correct one can happen. Undoing a bad repair costs real hours and it frequently reveals that the original damage was never properly addressed.

The plated frame crack is the clearest example. Three plates on one rail means three failed repairs and a chassis that has been cracking for years.

What is negotiable

Nearly everything else, and it is worth listing so this does not read as universally pessimistic.

• Roof membrane at end of life with sound decking: $3,500 to $18,000 and up, and predictable
• Sealant needing a full recoat: $750 to $4,500
• Worn seals, awning fabric, toppers: $400 to $3,000 range
• Contained delamination on composite substrate: lower half of $1,500 to $20,000 and up
• Dead appliances, generator needing overhaul: $250 to $9,500
• Cosmetic damage and faded paint: through to $8,500 to $45,000 and up on a full body

All of those have numbers, and a number is a negotiation.

Twenty minutes that answers all five

1. Walk the roof, feeling for softness. Five minutes.
2. Tap test both sidewalls in a grid. Ten minutes.
3. Look at any exposed substrate edge at a vent or light to identify lauan versus composite. Two minutes.
4. Cycle every slide fully, watching for lead and listening. Three minutes.
5. Look underneath at the frame rails for sag, ripple or plating. Two minutes.

That is it. Nothing needed but a coin and a flashlight, and it separates a negotiation from a walk away.

If it passes those five and you are serious, a paid inspection is the next step. Ours is $150 for a systems evaluation, refundable as a credit against an authorized repair, and it covers what twenty minutes with a coin cannot.