Exterior Dry Wash at Samedan / St. Moritz (Engadin Airport) (LSZS)
Rinseless detailing on the apron at 5,600 ft, winter and summer, with no wash bay and no runoff.
Exterior Dry Wash at Samedan / St. Moritz (Engadin Airport) is a waterless detailing service for super-midsize to ultra-long-range business jets operating into LSZS, delivered on the ramp or at the airport-operated FBO using aviation-approved rinseless products. The service removes bug residue, exhaust soot, hydraulic film and belly grime without generating runoff, making it the only practical option at an alpine field where wash bays do not exist and winter conditions dominate half the operational calendar. Turnaround slots are tight, so the work is scheduled around your departure or overnight if hangar space permits, with airside access coordinated through Engadin Airport AG.
5600 ft
Summer 08:00-19:00 local; winter 08:00 local until end of evening civil twilight; open 365 days a year; customs available throughout operating hours
No night operations - airport closes at 19:00 local in summer and at civil twilight in winter1 on the airport
independent, no affiliationWhy does dry wash make sense at an alpine airport?
Water supply and drainage infrastructure at high-altitude fields are not built for wash bays, and LSZS is no exception. A rinseless approach eliminates the need for hoses, drains and heated water in sub-zero temperatures, which means the aircraft can be detailed wherever it stands—on the apron, at the handler or inside a hangar if you have reserved one for the night. The products lift contamination into suspension and are wiped away with microfibre, leaving no chemical residue on the ramp and no ice patches in winter.
Alpine operations also mean your paint collects a different spectrum of dirt: fine glacial dust in summer thermals, de-icing fluid residue in winter, and exhaust carbon that bakes onto the belly during short hops at high power settings. A dry wash every two to four weeks keeps the finish clean without the logistical overhead of trucking the aircraft to a distant facility with a enclosed bay, which is rarely practical when your schedule is driven by client movements between European capitals and St. Moritz.
What changes at Samedan / St. Moritz (Engadin Airport)?
Samedan sits at 5,600 feet, making it the highest-altitude airport in Europe, and that elevation shapes every aspect of ground operations. Density altitude degrades engine performance and extends take-off rolls, so weight and fuel planning are critical; for the detailing crew it means thinner air, faster fatigue and slower work at altitude. The airport operates from 08:00 to 19:00 local in summer and from 08:00 until the end of evening civil twilight in winter, with no night operations permitted. Customs is available throughout operating hours, and the field is open 365 days a year, but winter is the operational peak: snow-clearing equipment runs continuously, snow-removal fees apply, and hangar space or overnight parking should be coordinated by phone in advance.
Ground handling is provided by Engadin Airport AG at Plazza Aviatica 6b in Samedan. There are no scheduled passenger flights; traffic is entirely general and business aviation, helicopters, gliders and training. Mandatory pilot briefing and qualification apply to every crew regardless of experience, reflecting the challenging topography, winds and thin air. For a detailing crew working airside, that means escort requirements are strict, the handler expects advance notice of any third-party service, and turnaround windows are planned to the minute because slot congestion in winter can delay departures if the aircraft is not ready on time.
How does the crew coordinate with the handler at LSZS?
Engadin Airport AG manages both handling and airside access, so all third-party service requests—including exterior detailing—are cleared through them before the aircraft lands. The handler will ask for crew names, passport details and the scope of work at least 24 hours in advance, sometimes longer in winter when ramp space is at a premium and every stand is spoken for. If the aircraft is parked overnight in a hangar, the detailing window opens after engines-off and closes before morning pre-flight; if it remains on the apron, the work is done during the turnaround or immediately after arrival, depending on your departure slot.
Airside escort is mandatory unless the detailing crew holds a Swiss airside pass valid at LSZS, which is uncommon for mobile teams. The handler will assign an escort and include the cost in the ground-handling invoice. Equipment is minimal—a dry wash requires only product canisters, microfibre cloths, a stepladder and a small vacuum for the gear bays—but everything must be declared and logged. The handler also expects the crew to stay clear of snow-clearing routes in winter and to notify them immediately if the aircraft needs to be repositioned for any reason.
What does the alpine climate do to the exterior finish?
Cold-soaked paint contracts and becomes more brittle, so winter detailing at LSZS demands a lighter touch than the same work on a warm ramp in Cannes. Hydraulic fluid and exhaust residue freeze into a film that requires more dwell time for the rinseless product to penetrate, and belly grime often includes de-icing fluid—Type I or Type IV depending on the departure airport—which leaves a glycol haze if not removed properly. Leading edges and nacelles collect ice abrasion marks from airborne snow crystals, and brightwork oxidises faster in the intense ultraviolet at altitude, even in winter.
Summer brings its own challenges: glacial dust is fine enough to scratch if dragged across the paint, so pre-cleaning with compressed air or a soft brush is standard. Bug strikes are less frequent than at sea-level airports, but when they occur the residue dries hard in the thin air and low humidity, making it difficult to lift without multiple passes. A dry wash every two to four weeks prevents contamination from building into a layer that requires a full decon or single-stage polish, both of which take longer and cost more than recurring light maintenance.
Can you detail the aircraft if it is parked outside overnight in winter?
Yes, but the work is scheduled for late afternoon or early morning, and the aircraft must be free of ice and snow before the crew begins. If the paint is cold-soaked below freezing, the rinseless product will not emulsify contamination properly, so the fuselage is pre-warmed with portable heaters or the detailing is delayed until the surface temperature rises above zero Celsius. Pitot covers and static port plugs are left in place throughout the process, and no-touch protocols around avionics bays and sensor panels are strictly observed.
Overnight parking on the apron in winter should be coordinated in advance; the handler will confirm whether the stand is sheltered or exposed to prevailing winds, and whether snow-clearing equipment will operate nearby during the night. If the aircraft is moved into a hangar after detailing, the finish must be completely dry before the doors close, otherwise condensation will form and leave water spots. For fleets with recurring winter operations into LSZS, a dry wash on arrival followed by a hangar overnight and a second inspection in the morning is the most reliable sequence.
How does recurring work differ from a single turnaround clean?
A fleet program at Samedan means the detailing crew knows the aircraft, the handler knows the crew, and airside access is pre-approved for the season. The handler will hold a file with passport copies and insurance certificates, so each visit requires only a confirmation call and a slot time. Recurring dry washes are scheduled every two to four weeks depending on flight hours and the season, with the work timed to match the aircraft's operational rhythm—typically a late-afternoon arrival on Friday and a mid-morning departure on Monday, which gives a comfortable window for detailing, inspection and any touch-up work on brightwork or the belly.
Single turnarounds are more compressed: the crew arrives with the aircraft, completes the exterior in three to eight hours depending on size, and departs with the flight. The handler expects a detailed brief on timing, equipment and any special requirements—such as access to a GPU if the aircraft will be engines-off for the duration—and the detailing crew must be ready to pause or relocate if snow-clearing or another priority movement takes precedence. One-off work is always possible, but it costs more in handler fees and escort time, and the risk of delays is higher because the airport has no slack in the winter schedule.
Questions operators ask about Exterior Dry Wash at Samedan / St. Moritz (Engadin Airport)
Can you perform a dry wash in winter at LSZS?
Yes, provided the paint is above freezing and the aircraft is free of ice and snow. Winter detailing is standard at Samedan, but the fuselage must be pre-warmed if cold-soaked, and the work is scheduled to avoid snow-clearing operations. The rinseless product will not emulsify contamination on frozen paint, so surface temperature is checked before the crew begins.
How long does a dry wash take at Samedan / St. Moritz (Engadin Airport)?
Three to eight hours depending on aircraft size and the level of contamination. A super-midsize jet with light soiling takes three to four hours; an ultra-long-range aircraft with heavy belly grime and de-icing residue can take up to eight. Work at altitude is slower because of thinner air and crew fatigue, so timing is planned with a buffer.
Do you need a wash bay for exterior detailing at LSZS?
No, the service is waterless and performed on the ramp or in a hangar. Dry wash uses rinseless products that lift contamination without generating runoff, so no wash bay, drains or water supply are required. The aircraft is detailed wherever it is parked, and the handler is notified in advance of the location and duration.
What does the handler at Engadin Airport expect from a detailing crew?
Advance notice, crew documentation, declared equipment and strict adherence to escort and safety protocols. Engadin Airport AG requires crew names, passport details and a scope-of-work brief at least 24 hours before arrival, sometimes longer in winter. Airside escort is mandatory unless the crew holds a valid Swiss pass, and all equipment must be logged. The handler also expects the crew to stay clear of snow-clearing routes and to notify them of any changes to the aircraft's position.
Can the aircraft be detailed overnight in a hangar?
Yes, if hangar space is reserved in advance, especially in winter. Hangar parking should be coordinated by phone ahead of the arrival, as winter demand is high and space is limited. The detailing is completed after engines-off, and the finish must be fully dry before the hangar doors close to prevent condensation and water spots.
What contamination does a dry wash remove at high altitude?
Bug residue, exhaust soot, hydraulic film, belly grime, de-icing fluid residue and glacial dust. Alpine operations expose the paint to fine glacial dust, exhaust carbon from high-power climbs, and glycol haze from Type I or IV de-icing fluid. A dry wash lifts all of these without abrading the finish, provided the product is given adequate dwell time on cold or frozen contamination.
Is LSZS slot-coordinated for detailing turnarounds?
No, but winter congestion means every movement is tightly planned and delays have consequences. The airport is not formally slot-coordinated, but winter traffic is dense and the handler schedules every stand and movement to the minute. If the detailing overruns and delays the departure, the next available slot may be hours later, so timing is planned conservatively and the crew stays in contact with the handler throughout the work.
How often should an aircraft receive a dry wash if it operates regularly into Samedan?
Every two to four weeks, depending on flight hours and seasonal contamination. Winter operations accumulate de-icing residue and exhaust soot faster than summer flying, so a two-week interval is typical during the peak season. Summer dust and bug strikes are less aggressive, so a four-week schedule is usually sufficient unless the aircraft is flying daily.
Can you detail an ACJ or BBJ at LSZS?
Yes, provided the aircraft fits the stand and the detailing window is long enough. Airliners and large-cabin jets are detailed using the same rinseless process, but the work takes longer—up to eight hours—and requires more crew and equipment. The handler must confirm stand availability and weight limits, and the detailing is usually scheduled overnight or during an extended layover.
What happens if snow falls during the detailing?
The work is paused, the aircraft is cleared by the handler's snow team, and detailing resumes once the surface is dry. Active snowfall makes exterior detailing impractical because the product cannot dry and contamination reappears immediately. The handler's snow-clearing crew will remove accumulation from the fuselage, and the detailing crew waits until conditions stabilise. If snow is forecast, the work is rescheduled or moved into a hangar if space is available.