# Comparisons

> Honest side by side decisions.

Source: https://ocrv.info/resources/comparisons

## Specialty RV shop or general auto body shop

Where a coach-capable shop and a car-focused collision shop genuinely differ, and when the car shop is the correct answer.

| | Specialty large-body shop | General automotive collision shop |
|---|---|---|
| What fits through the door | Bays and booth laid out for coaches past forty feet and box bodies over twelve feet tall. | Bays sized for passenger vehicles and light trucks, which covers the overwhelming majority of daily losses. |
| Wall construction understood | Bonded laminate over lauan or Azdel, aluminum cage framing, molded caps, filon skins. | Stamped and bolted steel or aluminum panels over an engineered crush structure. |
| Reference data used | Builder drawings when available, plus measured comparison against the undamaged side of the same unit. | Published dimensional databases and fixture benches with tolerances stated by the manufacturer. |
| First estimate accuracy | Written as an opening position with teardown scheduled, because laminate hides its own boundary. | Frequently close to final, because damage on a steel panel largely presents itself on the surface. |
| Color strategy | Instrument reading plus a cured sprayout card, since a coach carries several colors that faded at different rates. | Paint code lookup plus a variant deck, reliable on one factory color across one or two panels. |
| Systems touched during the repair | House twelve volt, one hundred twenty volt, plumbing, appliances and slide mechanisms handled in house. | Vehicle harness and safety systems handled; house systems are outside the trade entirely. |
| Parts sourcing | Coach builder parts desks, component suppliers, salvage yards and in house fabrication for discontinued items. | Dealer networks and mature aftermarket catalogs with predictable availability and pricing. |
| Realistic calendar | Two to four weeks on standard work, four to ten on structural, longer when a molded cap is on backorder. | Days to two weeks on most repairs, with scheduling capacity rather than parts as the usual constraint. |
| Cost per repair hour | Higher, because the trades are narrower and the equipment serves fewer units per day. | Lower, supported by volume and by standardized labor times per operation. |
| Where the other choice wins | A tow vehicle, a work pickup or a daily driver belongs at a general shop, not here. | A laminated wall, a slide room or a forty foot coach belongs at a specialty shop, not there. |

Match the shop to the structure, not to the logo on the paperwork. If the damaged object is a stamped panel on a passenger vehicle, a good general collision shop will do it faster and for less money. If the damaged object is bonded laminate, a molded cap, a slide opening or anything over about twenty six feet, the specialty floor is the only place the job finishes correctly the first time.

## In shop repair or a technician who travels to you

What a traveling technician can genuinely accomplish, what needs a controlled building, and how to tell the two apart.

| | In shop at a fixed facility | Traveling technician at your location |
|---|---|---|
| Typical work suited to it | Collision, structural, fiberglass, refinish, roof replacement, interior rebuild, water intrusion repair. | Component swaps, appliance service, seal touch ups, awning fabric, minor twelve volt faults. |
| Environmental control | Filtered booth, controlled temperature for resin and adhesive cure, lighting that reveals defects. | Whatever the weather and the parking surface provide on the day. |
| Diagnostic depth | Scan tools, load banks, moisture mapping, measured structural comparison, sustained water testing. | Meter, hand tools and experience, which resolves a large share of straightforward faults. |
| Access to the vehicle | Panels can come off, interiors can be opened, and the unit can sit torn down safely for weeks. | The vehicle usually has to be usable again by the end of the visit. |
| Parts on hand | Ordering happens against a completed blueprint, with the unit already in a bay while parts travel. | A second trip is common once the actual failed part is identified. |
| Insurance documentation | Teardown photo files, moisture records and measured supplements produced as a standard step. | Limited photographic evidence and rarely a teardown, which slows supplement approval. |
| Cost profile | Posted hourly rates with materials and disposal itemized; no travel component. | Service call fee plus labor, often with a mileage component, and less predictable totals. |
| Turnaround on small work | Requires a trip in and a trip back, which is real friction for a thirty minute repair. | Same day resolution at the storage lot, which is genuinely hard to beat. |
| Safety and containment | Hot work near propane, solvent handling and dust extraction managed under shop controls. | Several of those operations should not be attempted in an open lot at all. |

If the fix is a part swap and the vehicle stays functional, that is work for a technician who travels, not for this shop, and you keep your Saturday. If the repair involves structure, laminate, paint, a roof, a slide mechanism or water that has already traveled somewhere, the work belongs in a building. OCRV Center handles the second category only, and will say so plainly rather than take a job that needs a different setup.

## Independent repair shop or dealer service department

How scheduling, parts access, labor structure and factory coverage differ between an independent body shop and a selling dealer.

| | Independent body shop | Dealer service department |
|---|---|---|
| Factory coverage claims | Cannot file a builder claim on your behalf; covered defects should go through the selling channel. | Direct filing with the builder, which is the decisive advantage while coverage is active. |
| Makes accepted | Any builder, any chassis, any age, including units whose manufacturer no longer exists. | Generally the brands the store carries, with limited appetite for outside makes. |
| Structural and collision capability | Core competency, including measured pulls, panel sectioning, lamination and full refinish. | Usually referred out, since service lanes are built for component and systems work. |
| Scheduling behavior | Booked against bay capacity and parts lead time, with a stated tier from days to program length. | Frequently queued behind pre delivery inspections and seasonal service demand. |
| Parts pathway | Builder parts desks plus component suppliers, salvage channels and in house fabrication. | Fastest access to builder specific components and current technical bulletins. |
| Labor rate transparency | Posted rates published in advance at $210, $260, $285 and $95 depending on the trade. | Rates typically quoted at write up rather than published, and often bundled by operation. |
| Insurance claim handling | Supplements, teardown documentation and adjuster coordination handled as routine work. | Varies widely by store; many service lanes prefer not to handle collision claims at all. |
| Discontinued components | Fabrication and salvage sourcing available when a molded part is out of production. | If the part is superseded or dead, the file often stops there. |
| Who you talk to | The estimator who wrote the blueprint remains on the file through delivery. | A service advisor relays between you and a technician you will not meet. |
| Where the other choice wins | A covered defect on a new unit should go to the dealer first, every time. | Collision, laminate, roof or refinish work should go to a body shop, not a service lane. |

Coverage status decides most of this. If the failure is a defect on a unit still inside the builder's service commitment, start at the selling dealer and let them file it. If the vehicle was damaged, if the builder no longer supports the part, or if the work involves structure, laminate or paint, an independent shop with a body floor is the faster and usually cheaper path.

## Repairing a roof or replacing the membrane

How to judge whether a leaking roof needs a targeted repair, a full membrane replacement, or deck work underneath both.

| | Targeted roof repair | Full membrane replacement |
|---|---|---|
| Appropriate when | A single penetration or a short seam has failed and the surrounding deck reads dry. | The membrane is chalked through, seams are lifting in multiple places, or the deck is wet. |
| Labor band | Roughly 4 to 20 hours depending on how many penetrations get pulled and reset. | Roughly 20 to 80 hours, driven by roof length and how much decking has to come out. |
| What actually gets addressed | One failure point, plus a resealing pass over adjacent hardware while access is open. | The entire water barrier, every penetration, the edge trim and any compromised decking. |
| Deck inspection depth | Limited to the area opened, so distant soft spots can remain undiscovered. | Full deck exposed and probed, which is the only way to be certain of its condition. |
| Risk of repeat failure | Moderate. Adjacent sealant of the same age tends to fail on a similar schedule. | Low, because the whole system including sealant and hardware is renewed at once. |
| Effect on resale inspection | A patched area reads as a repair history item to a careful buyer. | A documented membrane replacement generally reads as a positive on inspection. |
| Disruption to the owner | Often a short tier job, in the three to eight day range. | Standard to extended tier, commonly two to six weeks with deck work. |
| Cost predictability | Reasonably firm once the area is opened, though hidden rot can change it fast. | Widest variable is deck replacement square footage, which is unknown until the membrane is off. |
| Interaction with an insurance claim | Hail or impact damage to one area is straightforward to document as a covered loss. | Age related membrane failure is usually maintenance and not a covered peril. |

Repair when the failure is local, recent and the surrounding deck reads dry on a meter. Replace when the membrane has chalked through, when three or more penetrations are lifting, or when any probing finds a soft spot. Spending $2,000 twice on a roof that needed replacing once is the most common expensive mistake in this category, and it is avoidable with an hour of honest inspection.

## Filing an insurance claim or paying out of pocket

The arithmetic and the second order effects that decide whether a claim is worth opening on a given repair.

| | Filing a claim | Paying out of pocket |
|---|---|---|
| Best fit | Losses well above the deductible, especially where hidden damage is likely. | Repairs close to or below the deductible with a clearly bounded scope. |
| Effect of hidden damage | Covered through a supplement once documented, which is the single strongest argument for filing. | Comes straight out of the owner's pocket and can double a budget after teardown. |
| Speed to start work | Slower. Adjuster assignment, inspection and authorization add days to weeks. | Immediate. Authorize, pay the deposit and the unit goes into the schedule. |
| Parts specification | Carrier may write aftermarket or LKQ parts and require justification for new builder parts. | Owner picks the part grade with no negotiation and no substantiation required. |
| Repair scope control | Limited to the covered loss; unrelated wear items are excluded from the claim. | Unrelated items can be folded into the same visit, which saves labor overlap. |
| Total loss exposure | Real. If the repair estimate approaches the carrier's threshold, the unit may be totaled against your wishes. | Not applicable. A vehicle you are paying to fix cannot be declared a total loss by anyone. |
| Betterment and depreciation | May be applied to wear items such as tires, membranes and awning fabric. | No betterment argument exists, though you also pay the whole figure. |
| Documentation burden | Substantial, and it falls partly on the owner as well as the shop. | Minimal. An estimate and an authorization signature. |
| Longer term cost | A claim on the record can influence future premium and renewal terms. | No claim history impact whatsoever. |
| Deposit behavior | Deposits still apply; a 50 percent deposit is due at authorization on jobs over $2,000. | Identical deposit structure, with the balance due at pickup. |

Open a claim when the visible damage already clears the deductible by a comfortable margin, and especially when the impact area contains laminate, structure or a slide opening where teardown routinely triples the number. Pay out of pocket when the scope is small, bounded and unlikely to grow, or when the unit is old enough that a carrier total loss valuation would be worse than a repair bill.

## Full repaint or spot refinish

Blend fields, panel boundaries, fade differential and cost bands that decide how much of a coach actually needs to be sprayed.

| | Full exterior repaint | Spot refinish with blend |
|---|---|---|
| Labor band | Roughly 40 to 250 hours depending on length, prep condition and graphics complexity. | Roughly 4 to 25 hours depending on panel size and how far the blend has to reach. |
| Color match problem | Eliminated. Everything is the same age and the same batch. | The central challenge. Requires instrument reading, a sprayout card and a planned blend field. |
| Suitable damage extent | Multiple panels, widespread oxidation, failed clear across the body, or a color change. | One or two adjacent panels on a body whose finish is still in serviceable condition. |
| Graphics handling | Full graphic package reproduced or redesigned, which is often the largest single line. | Only workable if the repair area falls clear of a graphic or at a natural break. |
| Finish age after the work | Uniform across the vehicle, which is a real advantage on a unit you intend to keep. | Mixed. New film adjacent to older film will age at different rates going forward. |
| Downtime | Extended to program tier. Plan on weeks and confirm before scheduling a trip. | Short tier on most jobs, commonly three to eight days. |
| Insurance treatment | Rarely approved in full unless damage genuinely spans the body. | Standard approved approach, though blend hours are the most commonly disputed line. |
| Substrate prep required | Full strip or scuff of the entire body, plus every seam and edge addressed. | Limited to the repair area and the blend field, which is why the hours stay low. |
| Value recovered at resale | Meaningful on an older coach with heavy oxidation, marginal on a newer one. | Neutral. A well blended repair is invisible and therefore invisible to a buyer too. |

Spot refinish with a properly planned blend is correct for most single incident damage, and any estimate that omits blend hours is quietly setting up a visible repair. Move to a full repaint when the existing finish has failed on its own, when damage spans three or more panels, when graphics must be redesigned anyway, or when the owner intends to keep the coach long enough for uniform aging to pay off.

## Repairing a fiberglass panel or replacing it

Damage depth, core condition, panel geometry and part availability decide whether a laminate repair beats a new panel.

| | Laminate repair | Panel or cap replacement |
|---|---|---|
| Damage that suits it | Cracks, punctures, gelcoat fracture and localized delamination on a repairable geometry. | Shattered laminate, crushed core over a wide area, or damage crossing a molded radius. |
| Cost band | Roughly $750 to $12,000, with most single area repairs landing well under the top. | Roughly $2,500 to $25,000 and up once a molded cap is involved. |
| Parts dependency | None beyond resin, reinforcement and finish materials, so work can start immediately. | Total. A discontinued cap can stop a job for months or end the repair path entirely. |
| Core and substrate outcome | Only as good as the boundary you cut back to. Leaving wet lauan in place is the classic failure. | Known good, because the entire assembly is new. |
| Geometry fidelity | Excellent on flat and single curved areas, demanding on compound curves. | Exact, since the part was molded on the original tooling. |
| Structural equivalence | Achievable with correct scarf ratios and laminate schedule, and provable by section thickness. | Inherent, assuming the mounting structure behind it is also sound. |
| Refinish scope created | Blend into adjacent area, often smaller than people expect. | Usually a larger refinish footprint because the whole part needs color. |
| Turnaround | Short to standard tier once the unit is in a bay, since cure time is the main clock. | Governed entirely by parts lead time, which can exceed the repair labor by weeks. |
| Where the other choice wins | Do not repair a cap corner that has lost its molded radius; it will never read right. | Do not replace a two foot crack in a flat sidewall; it is money spent for no gain. |

Repair is the default on flat and single curved laminate where the core boundary can be found and cut back to sound material. Replacement earns its cost when the damage crosses a molded radius, when core crush is widespread, or when the panel has been repaired before and the previous boundary was never established. Availability often decides it before technique does.

## Lithium or AGM for a house battery upgrade

Usable capacity, charge acceptance, weight, temperature behavior and installed cost compared for a coach or van house bank.

| | LiFePO4 lithium bank | AGM sealed lead acid bank |
|---|---|---|
| Usable share of rated capacity | Roughly 80 to 90 percent without meaningful cycle life penalty. | Roughly 50 percent if you want the bank to last, and less under heavy draw. |
| Weight per usable amp hour | Dramatically lower, which frees payload on a van or a small coach. | High. A four battery AGM bank is a substantial fraction of a van's cargo allowance. |
| Charge acceptance | Very high, so alternator and solar input convert to stored energy quickly. | Tapers hard in absorption, so the last quarter of a charge takes hours. |
| Voltage under load | Nearly flat until nearly empty, which keeps inverter output stable. | Sags progressively, so appliances see declining voltage through the evening. |
| Cold temperature behavior | Cannot be charged below freezing without an internal heater or a controller lockout. | Charges at freezing temperatures with reduced acceptance and no lockout. |
| Heat tolerance | Handles Inland Empire summer bay temperatures well, with management protecting the cells. | Sustained heat accelerates internal degradation measurably. |
| Supporting changes required | Converter or charger profile change, appropriate fusing including a class T on the main, often a DC to DC charger. | Usually a drop in replacement with no charger changes at all. |
| Installed cost | Higher up front once the supporting components are counted, not just the cells. | Lower up front and available same week from local suppliers. |
| Expected service span | Cycle count is several times higher, which is where the cost argument eventually turns. | Shorter, and shortened further by repeated deep discharge or heat. |
| Where the other choice wins | A weekender who plugs in at a park does not need lithium and should not pay for it. | Anyone boondocking regularly or running an induction cooktop will outgrow AGM quickly. |

Choose AGM when the coach spends most nights on shore power, when the budget is tight, and when nothing in the build draws hard between charges. Choose LiFePO4 when you camp off grid, when payload is constrained, or when you want solar and alternator input to actually land in the bank instead of trickling. Budget for the supporting components either way; the battery alone is not the project.

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OCRV Center. 23281 La Palma Ave, Yorba Linda, CA 92887. (949) 799-3387. info@ocrvcenter.com. Serving Eastvale, California in Riverside County, about 20 miles from the shop. All work is performed in shop at the Yorba Linda facility. No mobile, roadside or on-site service is offered. Scope is body, paint, structural, fiberglass, interior and vehicle systems work. Engine rebuilds, transmission rebuilds, drivetrain work, DOT inspections and emission testing are not performed.