Full Interior and Exterior Detailing for RVs and Trailers
Written by Refinish Department Lead, Paint and Refinish Lead, OCRV Center. Reviewed by Fleet Account Manager
In shortBlack streaks are oxidized roof runoff, not dirt, and no amount of washing removes them. A complete unit detail runs $500 to $2,500 at $95 per hour.
What is included in a full RV interior and exterior detail?
A full detail covers a decontamination wash, black streak removal, roof cleaning, awning and seal care outside, then extraction, surface cleaning and odor treatment inside. Rancho Santa Margarita owners book these at our Yorba Linda shop, where a coach can be worked indoors on a lift rather than in a driveway.
- Black streaking is roof chalk, and it needs a dedicated chemical
- EPDM roofs are damaged by petroleum based cleaners
- Odor from holding tanks is a plumbing job, not a detail
- Seals and gaskets get conditioned, not just wiped
- Price range
- $500 to $2,5005 to 26 labor hours at $95 per hour
- Labor rate
- $95 per hourDetail department
- Typical turnaround
- 1 to 4 shop daysLonger when interior extraction needs drying time
- Written estimate
- $150Credited in full against an authorized repair
- Unit sizes
- Teardrops through 45 foot coaches, all worked indoors
Last verified
A coach collects a different kind of dirt than a car does. Roof runoff carrying oxidized membrane chalk down the sides. Sap and road film baked on by a summer parked outdoors. Awning fabric holding dust in its weave. Interior fabrics that spent six months closed up in a storage lot developing a smell nobody can locate. None of that responds to a wash and a wipe, which is why owners who have washed a coach three times still see the streaks.
Our detail work happens indoors on the same floor as the paint department, which matters more than it sounds. Water spotting from drying in direct sun on a hot day is a real problem on a large vertical surface, and a coach parked in a driveway simply cannot be worked on the same way. Nothing here is a mobile service. The unit comes to Yorba Linda and goes back cleaner than a driveway wash can achieve.
Black streaks are the roof, not the walls
The dark vertical runs below the roof edge are the single most common complaint that brings a coach to a detail bay, and almost nobody knows what they are. They are not road grime and they are not mildew. A rubber roof membrane oxidizes under UV exposure and sheds a fine chalk. When it rains, that chalk suspends in the water running off the roof and deposits down the sidewalls in the pattern the runoff takes.
That explains two things owners find maddening. First, why the streaks always appear in the same places, because water leaves the roof at the same points every time. Second, why general purpose soap does not touch them. Dedicated black streak chemistry lifts the deposit, and cleaning and treating the roof itself is what slows the rate at which it comes back. Do one without the other and you are on a rinse cycle forever.
- Streaks form where roof runoff leaves the coach, in the same spots each time
- General purpose soap does not lift them, dedicated chemistry does
- Cleaning the roof reduces how fast they return
- A chalky roof also means the membrane is aging and worth inspecting
What you can and cannot put on an RV roof
There are three roof materials in common use and they have different chemical tolerances. EPDM rubber is the most restrictive: petroleum based cleaners and solvents attack it, and products marketed for general automotive use frequently contain exactly what an EPDM roof should never see. TPO is more tolerant but not unlimited. Fiberglass roofs behave like any other gelcoat surface and can be polished, which the membrane roofs cannot.
This is the part of a detail where doing it wrong causes damage rather than merely underdelivering. A membrane that has been cleaned with the wrong product does not announce it that day. It shows up a year or two later as accelerated chalking and a shorter service life, at which point nobody connects it to a cleaning. We use products rated for the specific material and we identify the roof material before anyone climbs up there.
Why a clean coach can still feel rough
Run a bare palm across a freshly washed sidewall and it often still feels gritty. That texture is bonded contamination sitting above the finish: fallout, rail dust, tree sap residue, overspray. Washing does not remove it because it is not loose dirt, it is attached. The test is simple and slightly theatrical: put a thin plastic bag over your hand and slide it across the panel. The bag amplifies texture and owners are usually surprised at what they feel.
Removing it takes two steps. A chemical stage that dissolves iron and fallout particles, then a mechanical stage where clay media shears off what remains. On a coach this is significant labor because of the surface area involved, which is exactly why it gets skipped by anyone quoting a price that sounds too good. It also matters more than it seems, because any sealant or coating applied over bonded contamination is bonding to the contamination rather than to the finish.
Seals, awnings and the parts that age fastest
The rubber on a coach takes the hardest UV beating of anything on it. Slide seals, door gaskets, window seals and roof vent gaskets all harden progressively, and once they harden they stop conforming to the surface they are supposed to seal against. Conditioning them during a detail is cheap preventive work with a real payoff, because a seal replacement is a considerably larger job than a wipe with a UV conditioner twice a year.
Awnings are the other component that rewards attention. Vinyl and acrylic fabrics clean differently and both need to be fully dried extended before rolling. The single most common awning complaint we see, a fabric with dark blotching that will not come out, started as a canopy rolled up damp. By the time it is visible, cleaning has limited effect and the conversation shifts to replacement.
What interior work can and cannot fix
Hot water extraction pulls a startling amount out of upholstery and carpet, and ozone treatment neutralizes odor that has settled into soft surfaces. Between them, a coach that smelled closed up after six months in storage usually comes back genuinely fresh. That is the case where interior detailing does exactly what owners hope.
The case where it does not is a smell being produced continuously. A holding tank vent routed badly, a leaking shower pan wetting the subfloor, a failed refrigerator drain, moisture in a wall from a roof seam. Cleaning removes the smell for a few days and it returns because the source never went anywhere. We look for those sources during the walk through and tell owners plainly when the answer is a repair rather than a cleaning, because selling a second detail into a plumbing problem is not a service.
Note
If a smell comes back within a week of a full interior clean, stop paying for cleaning. Something is generating it and it needs to be found.
What a full detail costs
Detailing bills at $95 per hour from the detail department, which is the lowest labor rate in the building, and a complete unit runs $500 to $2,500. The variable is surface area and condition, not brand. A compact trailer with light streaking and a tidy interior sits at the low end. A forty five foot coach with heavy streaking, awning work and a full interior extraction lands at the top.
Materials carry standard markup, sales tax applies to parts and materials, and labor is not taxed. Where an inspection shows the finish is oxidized rather than dirty, we quote cut and polish work separately, because those are different operations with different outcomes and blending them into one number serves nobody.
On cost
If chalk transfers to your hand from the sidewall, a detail will not restore gloss. That unit needs oxidation removal, which is quoted as its own service.
Detailing before a sale, a rental turn or long storage
Three moments justify a full detail beyond wanting a clean coach. Before a sale, because presentation moves the number more on RVs than on almost any other asset and buyers read a dirty roof as deferred maintenance across the board. Before long term storage, because organic material left on paint and fabric has months to work on both. And on rental turns, where a fleet operator needs a consistent standard between renters rather than whatever the last cleaner felt like doing.
For rental and fleet work we document the standard so the result repeats across units and across visits. That predictability is usually worth more to an operator than any single detail, and it is a scheduling conversation as much as a cleaning one.
What is included
- Two bucket decontamination wash
- pH neutral wash with dedicated wash and rinse buckets so grit that comes off the panel does not go back onto it on the next pass.
- Black streak removal
- Dedicated chemistry worked panel by panel, since roof chalk streaking will not lift with general purpose soap no matter how many passes it gets.
- Roof cleaning with membrane safe products
- EPDM and TPO roofs cleaned with products rated for the material, and never with petroleum based cleaners that quietly degrade the membrane.
- Awning fabric cleaningwhere applicable
- Vinyl and acrylic canopies cleaned according to material, extended and dried fully before rolling, because a damp roll grows exactly what you would expect.
- Seal and gasket conditioning
- Slide seals, door gaskets, window seals and window tracks cleaned and treated with a UV conditioner rather than dressed to look wet.
- Interior extraction and odor treatmentwhere applicable
- Hot water extraction on upholstery and carpet, hard surface cleaning, and ozone treatment where a residual odor survives the cleaning.
How the work runs
Walk the unit and set expectations
1 hour
We look at the roof, the streak severity, the awning and the interior before quoting hours. A coach with heavy oxidation needs polishing rather than detailing, and telling an owner that up front is more useful than delivering a clean coach that still looks dull.
Roof first, then down
1 to 4 hours
The roof gets cleaned before the sides, because doing it in the other order washes chalk straight back down over finished panels. Membrane safe products only, worked in sections, with everything below masked or rinsed continuously.
Decontaminate and wash the exterior
2 to 10 hours
Two bucket wash, dedicated black streak chemistry panel by panel, chemical fallout removal, and mechanical claying on smooth painted surfaces. This sequence is what makes the finish feel smooth rather than merely look clean.
Trim, seals, tires and awnings
1 to 5 hours
Window tracks cleaned out, seals and gaskets conditioned, tires dressed with a product that does not sling onto the sidewall, and awning fabric cleaned and dried fully extended before it is rolled back up.
Interior deep clean
2 to 8 hours
Vacuum, hard surface cleaning, hot water extraction on soft surfaces, window and mirror work, and ozone treatment where odor survives the cleaning. Interiors need drying time and we schedule for it rather than closing a damp coach.
What this costs
$500 to $2,500
5 to 26 labor hours at $95 per hour, detail.
- Parts at $100 or less carry 100 percent markup. Parts over $100 carry 35 percent. Special order parts require a full non refundable deposit at order.
- Sales tax of 7.75 percent applies to parts and materials. Labor is not taxed.
- A compact trailer with light streaking and a clean interior sits near the $500 end.
- A 45 foot coach with heavy streaking, awning cleaning and full interior extraction approaches $2,500.
- Heavily oxidized units need cut and polish work, which is quoted separately from detailing.
How estimating is billed
- Written repair estimate: $150, credited in full against an authorized repair.
- In depth diagnostic, scan and programming: $285 per hour, one hour minimum, credited in full against an authorized repair.
- In shop pre purchase inspection: $400 to $1,200 depending on unit size and systems count.
- Insurance walk ins are accepted during posted hours. All inspection and estimating work is performed in shop at the Yorba Linda facility.
What you will notice first
- Dark vertical streaks running down the sidewalls below the roof edge
- The finish looks dull and feels rough to a bare palm even after washing
- Awning fabric is grey and stained rather than the color it started as
- A musty smell that appears within minutes of opening the door
- White chalky residue transfers to your hand from the sidewall
- Bug residue at the front cap that has etched into the surface
- Window tracks and slide seals packed with dust and grit
- Upholstery and carpet with traffic patterns that vacuuming does not touch
How this fails, and what we do about it
| Failure mode | How we diagnose it | The fix |
|---|---|---|
| Black streaks return within weeks | The streaks came back because the source did not change. Check the roof membrane for chalking by wiping it with a dark cloth. Heavy chalk transfer means the roof is shedding material every time it rains. | Clean and treat the roof as part of the detail. Removing the streaks without addressing the membrane produces a coach that looks correct until the next storm. |
| Surface still rough after a full wash | Bonded contamination sitting above the finish. Slide a hand inside a thin plastic bag across the panel and feel it, since the bag amplifies texture the fingertips miss entirely. | Chemical decontamination followed by mechanical claying on smooth surfaces. This is the step that makes any subsequent polish or sealant actually adhere the way it should. |
| Interior odor returns after cleaning | The source was not in the fabrics. Check holding tank vents, the water heater bay, under the shower pan and behind the refrigerator. A detail can remove a smell that lives in upholstery and cannot remove one being generated continuously. | Identify and repair the actual source, then treat the interior. We say plainly when a smell is a plumbing problem rather than a cleaning problem instead of selling a second detail. |
| Seals hardened and cracked | Press a fingernail into the bulb of a slide seal. Sound rubber gives and recovers. Hardened rubber stays dented and shows fine surface cracking along its length. | Condition what can still recover and identify what needs replacement. Conditioner on a seal that has already gone brittle makes it shine and does not make it seal. |
Why it happened
- Oxidized roof membrane chalking and washing down the sides in rain, which is what black streaking actually is
- Airborne contamination bonding to the surface, which sits above the finish and cannot be washed off without decontamination
- Long storage periods with the unit closed, which lets moisture and organics build into fabrics and produce the musty smell owners notice on opening
- UV exposure degrading rubber seals and gaskets that never received conditioning, so they harden and eventually stop sealing
- Improper products used on an EPDM roof, especially petroleum based cleaners that degrade the membrane while appearing to clean it
- Silicone tire dressings slinging onto the sidewall at speed, leaving a spotted band that resists normal washing
Parts and brands we work with
- pH neutral wash media and dedicated black streak chemistry
- Iron and fallout removers for bonded surface contamination
- Clay media for mechanical decontamination on smooth painted panels
- 303 Aerospace Protectant and comparable UV conditioners for seals, gaskets and vinyl
- Membrane safe cleaners rated for EPDM and TPO roofs
- Hot water extraction equipment and ozone treatment for interior odor
What not to try yourself
- Using a petroleum based cleaner on an EPDM roof. It appears to clean beautifully and degrades the membrane you are standing on.
- Pressure washing decals, seals or roof seams. The stream lifts decal edges, drives water past seals and finds every weak point in a seam that was otherwise fine.
- Washing a large coach in direct sun on a hot day. Water spotting on a vertical panel that size is far harder to remove than the dirt was.
- Rolling a wet awning up after cleaning it. Give it the time to dry fully extended or you will be cleaning it again for a different reason.
Which vehicles we do this on
Vehicles we perform Full Detail on
Class A GasClass A gas motorhome repair covers the molded front and rear caps, the vacuum bonded laminated sidewalls, the EPDM roof and the F53 chassis underneathClass CClass C motorhome repair centers on the cabover bunk, the joint where the coach body meets the factory van cab, and the stick built or laminated house behind itTravel TrailerTravel trailer repair covers A frame tongue welds, the front cap that takes road debris, the roof front radius seam, sidewall delamination starting at a window corner, and equalizer and axle wearStandardStandard fifth wheel repair concentrates on the pin box and upper deck welds, the floor at the step up transition, the front cap above the pin and the roof front radius seamTeardropTeardrop repair centres on the rear galley hatch sealing along a curved perimeter, plywood or composite delamination at the roof spars, skin seams following the curve, and a single torsion axleSprinterSprinter van collision repair covers the unitized steel shell, the rear and sliding door openings, the roof structure and the upfit that hangs off all of itOwners get frustrated because they wash the coach and the black streaks come right back after the next rain. I tell them the streaks are not dirt, they are the roof washing itself down the sides. Until the membrane gets cleaned and treated, you are just rinsing the symptom. The other thing I always check is whether the unit actually needs a detail or needs polishing. If chalk comes off on my hand, no wash on earth is going to bring that shine back and I would rather say so than take the money and hand back a clean, dull coach.
Appendix: questions and answers
- What actually causes the black streaks on the side of my RV?
- Roof membrane chalk. UV exposure oxidizes an EPDM or TPO roof and it sheds a fine powder, which suspends in rainwater and runs down the sidewalls in the same paths every storm. It is not road dirt, which is why regular soap does nothing. Dedicated chemistry lifts it and cleaning the roof slows how fast it returns.
- What should never be used to clean an RV rubber roof?
- Anything petroleum based, and most solvent bearing automotive products. EPDM is chemically vulnerable to them and the damage is not visible on the day. It shows up as accelerated chalking and a shortened membrane life a year or two later. Use products specifically rated for the roof material, and identify the material first.
- Why does my RV still feel rough after a thorough wash?
- Bonded contamination sitting above the finish: iron fallout, rail dust, sap residue and overspray. Washing cannot remove it because it is attached rather than loose. Chemical decontamination followed by clay media shears it off. Slide a hand in a thin plastic bag across the panel and you will feel exactly what is still there.
- Will a deep interior clean get rid of the smell in my coach?
- If the smell lives in fabrics and hard surfaces, yes. Extraction and ozone handle that well. If something is generating odor continuously, a tank vent, a leaking shower pan, wet subfloor or a failed drain, cleaning buys a few days and the smell returns. We look for a source during the walk through and say so if we find one.
- How long will a full RV detail stay looking good?
- Depends almost entirely on storage. A coach kept covered or indoors holds a detail for months. One parked outdoors under trees collects sap and organic fallout within weeks and will streak again after the first real rain if the roof is chalking. Roof condition is the single biggest factor, ahead of how the sides were finished.
- How do I know if my RV needs detailing or polishing?
- Wipe the sidewall with a dark cloth or your palm. If white chalk transfers, the finish is oxidized and washing will not bring gloss back regardless of effort. That unit needs cutting and polishing, which is a separate service at a different hour count. If nothing transfers and it simply looks dirty, a detail is the right call.
Open a file on this repair
Tell us the vehicle, what happened and whether a claim is open. We will tell you what the scope looks like and what it takes to get you back on the road.
Or call (949) 799-3387