Exterior Detail Process | SF City Wash
SF City Wash — Exterior Detail Process

Exterior Detail
How We Actually Do It

Wheels first, pre-rinse, two foam passes, contact wash with two mitts, inspect, dry, seal. That's the sequence. Here's what's actually happening at each step.

Duo: 30–45 min
Solo: ~1 hour
Wheels First
Two Foam Passes
Foam cannon application Pre-wash rinse Contact wash
Duo Format — 30–45 Minutes

The Duo Exterior Process

Two detailers running in parallel. The split isn't arbitrary — it's designed so nothing is waiting on anything else. Here's what each person is doing at every stage.

01

Wheels — Both Detailers

We start with wheels on every job because they're the dirtiest part. If you wash paint first and then do wheels, you're splashing brake dust and wheel cleaner back onto clean paint. So wheels first, always.

Detailer A

Spray iron remover on all 4 wheels, then wipe down the faces of each wheel with a microfiber while the chemical dwells.

Detailer B

Go in behind with the barrel brush on each wheel — get inside the barrel where the brake dust collects.

One of you finishes wheels slightly before the other. That person starts spraying off the excess chemical and preps the foam cannon. The other one wraps the last wheel and rinses it off.
02

Pre-Rinse the Car

While the last wheel is being finished, one detailer starts the pre-rinse from the roof down. This isn't a wash — you're just pushing loose dirt, bird droppings, and road film off the paint before any soap touches it. Top to bottom, roof to rocker panels.

Using a pressure washer with a 50ft hose so you can move around the vehicle without stopping.
03

Pre-Wash — Snow Foam

Load the foam cannon with snow foam and cover the entire vehicle. Start from the bottom up so the foam stays on the paint longer where the most dirt is. Let it sit for 5 minutes. Walk away. Let the surfactants do the work.

Rinse off after 5 min. You'll see how much comes off in the foam — that's dirt that would've been dragged across your paint if you skipped this step.
04

Contact Wash — Both Mitts

Foam the vehicle down again with the cannon before contact wash — yes, a second time. Then both detailers grab a wash mitt. Work panel by panel, top to bottom. Two buckets: one with car shampoo, one clean rinse bucket. Mitt goes into the rinse bucket before every reload so you're not washing the car with progressively dirtier water.

Detailer A

Roof, hood, windshield, driver side — top panels first.

Detailer B

Trunk lid, passenger side, lower rocker panels — meet in the middle.

05

Final Rinse + Inspection

Full pressure rinse, roof to ground. Then both detailers walk the vehicle together — check for soap residue in door jambs, around emblems, missed spots on lower panels, any water beading poorly that might mean the paint needs more attention.

If something looks off, hit it again before you dry. It's much harder to fix after the sealant goes on.
06

Dry + Protect

Start with compressed air or a leaf blower on mirrors, door jambs, between panels, around the windshield trim, and the fuel door — anywhere water hides. Then a 1600GSM drying towel on the paint. Once dry, apply spray sealant panel by panel — works best on a slightly damp surface right after a rinse.

Solo Format — ~1 Hour

Solo Exterior Process

Same process, same order, same products. One person doing everything sequentially. Wheels → pre-rinse → foam × 2 → contact wash → rinse → dry → seal. Budget about an hour for most vehicles.

What's the Same

Every step runs in the same order. You don't skip anything — you just do it yourself instead of splitting. The two foam passes, two-bucket wash, and inspection at the end all stay in the sequence.

What Takes Longer

The wheel phase is the biggest time difference. In a duo, one person is already pre-rinsing the car while the other finishes the last wheel. Solo you do wheels, fully finish, then move to pre-rinse. That alone adds 10–15 minutes.

Add-Ons

What Gets Added On Top

These aren't part of a standard exterior detail — they go on after the contact wash when the paint is clean.

After Contact Wash

Iron Decontamination

Spray iron remover on clean, wet paint. Watch it turn purple as it reacts with embedded iron particles from brake dust. Rinse after 2–3 min. This is what makes paint feel smooth to the touch instead of gritty.

After Iron Decon

Clay Bar

Iron remover handles chemical contamination. Clay handles mechanical — overspray, rail dust, anything embedded in the clear coat that iron remover can't dissolve. Always in this order: chemical decon, then clay.

Separate Service

Paint Correction

Swirl marks, scratches, and oxidation require machine polishing — that's a full paint correction job, not something we tack onto an exterior detail. If your paint needs correction, request a quote for that separately.