Pre-Purchase Inspection: Cost, Hours and Process in Hacienda Heights

This is the part buyers actually want, so here it is in full. The inspection is 3 to 6 hours of a technician's time and it is spent in a fixed order, starting with the two things that decide whether the coach is worth buying at all: the envelope and the floor.

Roof: every penetration inspected and graded, seams and cap transitions inspected, membrane condition assessed, and the deck read for moisture on a grid against a dry baseline. Sidewalls: laminate integrity checked by tap testing and by reading the panel in raking light for waviness, with particular attention to the lower sidewall, the corners and the areas around windows and the awning rail. Floor: moisture read across the whole deck plus targeted checks at the entry step, under the galley sink, at the bath and at every slide threshold, and a walk of the underside for staining and for previous patching.

Slides: each room run out and in fully, travel observed for binding, scrubbing and uneven timing, seals inspected for set and abrasion, the mechanism inspected for its actual type and condition, and motor current observed where the system allows it. Schwintek and rack and pinion systems get particular attention because their failure modes are expensive and their early symptoms are subtle.

LP: a pressure and leak test on the system, regulator and lock off condition, cylinder or tank mounting and date, and appliance connection inspection. This portion is certification gated and is performed by a certified technician. Electrical: shore cord and transfer switch condition, converter and inverter output, battery bank load test, panel inspection for prior amateur work, 12 volt circuit function throughout, and generator start and run under load. Plumbing: system pressurized and held on city water, every fixture run, pump and valves checked, tanks and dump valves operated, and water heater function on both energy sources. Appliances: refrigerator cooling on both energy sources, furnace, air conditioner, cooktop and oven, microwave, and the vent fans.

• Roof: penetrations, seams, cap transitions, membrane condition, deck moisture grid
• Sidewalls: laminate tap test, raking light survey, window and awning rail areas
• Floor: full moisture read plus targeted checks at step, galley, bath and slide thresholds
• Slides: full travel both directions, seal condition, mechanism type and condition
• LP: pressure and leak test by a certified technician, regulator, lock off, mounting
• Electrical: shore cord, transfer switch, converter, inverter, battery load test, panel, generator under load
• Plumbing: pressurized and held on city water, fixtures, pump, valves, tanks, water heater
• Appliances: refrigerator on both energy sources, furnace, air conditioner, cooktop, oven, microwave, fans
• Chassis: visible frame and suspension condition, tire condition and date codes, jack and step operation
• Documentation: title and registration match, prior repair evidence, recall and service history if produced

On the chassis we report what is visible and what can be assessed without disassembly: frame condition and any evidence of prior repair or straightening, corrosion, suspension and air bag condition, leaf spring and hanger condition on towables, tire condition and date codes, wheel condition, levelling jack operation and leakage, entry step operation, and any fluid leak paths visible from underneath.

What we do not do is assess engine, transmission or drivetrain condition. That is outside what this facility performs, and pretending otherwise on the most expensive component in a motorhome would be doing a buyer a disservice. On a motorhome we will tell you plainly that the chassis powertrain needs a separate opinion, and we will tell you what we saw underneath that a chassis shop should look at.

On documentation we check that the title and registration match the coach and the vehicle identification number, look for evidence of prior structural or water repair, note any open recall information the owner can produce, and record whatever service history exists. A coach with a complete service file is worth more than one without, and a coach with a repaired structural history is worth knowing about before you own it.

The inspection happens at our Yorba Linda facility by appointment. We do not perform inspections at a dealer lot, at a storage yard, at a campground or at a seller's home. That will be inconvenient for some transactions and we are not going to pretend otherwise, but the reason is straightforward: half of what matters on this list cannot be assessed in a parking space.

A moisture grid needs a roof that can be walked safely under controlled conditions. A plumbing pressure hold needs city water and a floor drain. A generator load test needs a place it can run. Getting under a 40 foot coach needs a level floor and light. An LP test needs a certified technician with calibrated equipment. An inspection performed without those things is a walkaround with a flashlight, and buyers who pay for one of those are the buyers we end up meeting a year later with a subfloor problem.

Practically, that means the seller or the dealer has to agree to release the coach for a day. Most will. A seller who will not let a coach be inspected independently has told you something useful, and it is worth more than the inspection fee. Hacienda Heights buyers are 18.4 miles out, 24 to 38 minutes on SR-60 west to Fullerton Rd, and most inspections are completed the same day the coach arrives.

The deliverable is a written report with photographs throughout, organized by system, with each finding graded and a repair cost estimate attached to it drawn from the same published price bands the rest of this site uses. That last part is the difference between a report that tells you a coach has issues and a report you can negotiate with.

A buyer looking at a $60,000 used coach is making a decision where the two expensive failure modes, a wet roof deck and sidewall delamination, are both invisible from the walkthrough and both run five figures to correct. Finding either one before the sale either ends the purchase or moves the price by considerably more than the inspection cost. Finding neither is also worth paying for, because it is the only way to know.

The inspection is 3 to 6 hours and sits in the band on this page. It is a priced appointment, not a courtesy, and it is not credited against a repair, because the whole value of it depends on the report being independent of whether we later do work on the coach.