What to expect from a house washing appointment, step by step

Homeowners who’ve never booked a professional house wash often aren’t sure what a normal visit looks like, which makes it harder to tell a thorough job from a rushed one. Here’s what a standard house washing appointment in the Myrtle Beach area typically involves, from the first knock on the door to the final walkthrough.

Before the crew arrives

A little prep on your end speeds things up and protects your property. Close all windows and doors tightly, since even soft washing pushes some water and mist against the siding. Move patio furniture, planters, grills, and kids’ toys away from the walls, or ask the crew if they’ll relocate items for you. Bring pets inside, and if you have flower beds or shrubs planted close to the foundation, point them out. A careful crew will pre-wet sensitive plants with plain water and rinse them again afterward to dilute any cleaning solution that lands nearby.

The walkthrough and setup

A good appointment starts with a short walk around the property, not the crew immediately turning on the pump. During this walkthrough, expect the technician to look for existing damage, loose siding, cracked trim, missing caulk, so it’s documented before they start rather than discovered afterward when it’s unclear who’s responsible. This is also the point to mention specific concerns: a stubborn stain near a downspout, a window that doesn’t seal well, or an area that got damaged during a previous cleaning.

Setup typically includes covering outdoor outlets, protecting nearby vehicles or structures with plastic sheeting if they’re close to the work area, and mixing the cleaning solution based on how heavy the algae or mildew buildup looks.

Stage	What happens	Typical time
Walkthrough	Crew inspects the exterior, notes pre-existing damage, confirms scope	5 to 10 minutes
Application	Soft wash solution applied to siding, gutters, and trim	20 to 40 minutes
Dwell time	Solution sits to break down algae, mold, and mildew	10 to 15 minutes
Rinse	Low-pressure rinse removes the solution and loosened grime	20 to 40 minutes
Final check	Walk the property together, confirm even coverage	5 to 10 minutes

Why soft washing, not straight pressure

Most reputable companies use soft washing on vinyl, stucco, and painted siding rather than blasting it with high pressure. High pressure can force water behind siding panels, crack stucco, or strip paint, none of which shows up until weeks later when moisture damage or peeling appears. Soft washing uses a lower-pressure application of a cleaning solution that kills algae and mildew at the surface rather than relying on force alone, which is safer for the material and usually gets a cleaner, more even result on painted or vinyl exteriors. Beyond the cosmetic staining, that buildup can carry its own health concerns for anyone sensitive to mold; our guide on mold, algae, and mildew health risks covers what to watch for.

During the rinse and after

Once the solution has had time to work, typically ten to fifteen minutes depending on how heavy the staining is, the crew rinses the house from top to bottom with a controlled, lower-pressure stream. You should see algae and mildew streaks lift away as they go, with even color across each wall by the end. Gutters and window screens often get a quick rinse too if that was part of the quote.

What a finished job should look like

Before the crew leaves, walk the exterior together while it’s still wet if possible, then check again once it dries, since wet siding always looks a shade darker than the finished result. Look for even coverage on every wall with no streaking, no leftover white residue in corners or under eaves, and no damage to nearby plants or grass from overspray or runoff pooling. A reputable company will point out anything they noticed, like pre-existing siding damage or a spot that didn’t fully clear, rather than leaving you to find it later. If you’re washing ahead of a sale rather than routine upkeep, timing and curb appeal matter more than usual; our guide on whether exterior cleaning helps sell a house faster covers that angle specifically.

If something looks off

Not every job goes perfectly, and knowing what to flag matters as much as knowing what to expect. Streaking that’s still visible once the siding dries, dead grass or shrubs along the wash line, or new cracks in trim that weren’t noted during the walkthrough are all worth raising with the company right away rather than waiting. Most reputable crews will come back and address a real issue at no extra cost, since a callback is far cheaper for them than a bad review.

If you’re comparing house washing providers before booking, our pressure washing directory covers residential house washing along with every other exterior cleaning category in the Myrtle Beach area. Our methodology explains how we score and rank the businesses listed.