Soft Washing vs. Pressure Washing on Multi-Story Homes

Soft Washing vs. Pressure Washing: What We Use on Tall Townhomes

We recently got a call from a customer — let's call her Janet — who owns a three-story townhouse with big, beautiful windows and modern siding. She told us, laughing a little, that she’d lived there for 10 years and never had the place professionally cleaned.

Janet’s main concern? Those really high windows and siding on her three-story “loft-style” townhouse. The lower level siding had become a hangout spot for spiders, and there was general grime building up on the exterior. She was getting ready to move in about a month and wanted everything looking “spick and span” before listing the home, but she was nervous about how to safely clean siding and windows that high up.

As we walked through her quote, we explained why we recommend soft washing instead of traditional high-pressure washing on multi-story homes like hers — especially with modern concrete-style siding and metal panels. That conversation is one we have a lot, so we thought we’d break it down here for other homeowners in the same situation.

What Is Soft Washing, Exactly?

When we told Janet we’d do a full soft wash on her exterior, her first question was, “So…is that still going to get the spiders and gunk off?” Fair question.

Soft washing is a cleaning method that uses:

• Low water pressure (much gentler than a typical pressure washer)
• Specialized cleaning solutions that break down organic growth (spider webs, mildew, algae, pollen, dirt)
• Purpose-built equipment that lets us safely reach very high siding and windows

The key idea: instead of blasting the surface with force, we let the chemistry do most of the work and then rinse with low pressure. This protects your siding, seals, and window frames while still giving you that fresh, like-new look.

How Pressure Washing Is Different

Most homeowners are more familiar with traditional pressure washing — sometimes even renting a machine from a hardware store. That’s a very different animal from what we used on Janet’s townhouse.

Traditional pressure washing typically uses:

• Very high PSI (pounds per square inch) to physically blast off dirt
• Little or no cleanser, depending mostly on pressure
• Closer working distance to the surface

There is a place for high-pressure cleaning — driveways, some concrete surfaces, certain types of masonry. But on siding and high windows, especially on multi-story homes, it can create problems if it’s not carefully controlled.

Why Soft Washing Is Safer for Siding and High Windows

Janet’s home had a mix of concrete-style siding and a section of corrugated metal, plus those huge window panels stacked up three stories. That’s a pretty common combo in newer townhome developments, and it’s exactly the kind of setup where soft washing shines.

Here’s why we recommended a full exterior soft wash instead of traditional pressure washing:

1. Protecting Modern Siding and Paint

High pressure can:

• Etch or strip paint and coatings
• Force water behind siding, leading to moisture problems
• Damage caulking and seals around windows

Soft washing uses low pressure, so we remove the organic growth (spider webs, mildew, algae) without chewing up the finish. On homes like Janet’s that haven’t been washed in a decade, that’s huge — the siding gets cleaned, not sandblasted.

2. Safety on Multi-Story Homes

When we’re dealing with a three-story townhouse, we’re thinking about more than just cleanliness — we’re thinking about safety for the home and for our crew. Traditional pressure washing from ladders at that height is risky and harder to control.

With soft washing, we use equipment that lets us:

• Reach very high areas from the ground or stable platforms
• Control the flow and direction of water more precisely
• Avoid putting unnecessary stress on windows and trim

That’s how we clean those “crazy high windows,” as we joked with Janet, without putting anyone — or anything — in danger.

Will Soft Washing Really Get Rid of Spiders and Grime?

One of Janet’s big goals was to tackle the spider issue on her lower siding before showings started. Soft washing is actually ideal for this kind of organic mess.

Our soft wash process:

• Breaks down webs and organic residue so they rinse cleanly
• Helps remove light staining from mildew and algae on siding
• Preps the surface so it stays cleaner longer than with water alone

For Janet, we paired the soft wash with a deep window cleaning inside and out. That included cleaning the glass, frames, sills, and removing and washing the screens. On three-story homes with large panes (like her 72" x 64" units), the difference before and after this combo is dramatic.

How to Decide What Your Home Needs

If your multi-story home hasn’t been professionally washed in years — or ever, like Janet’s — it can be hard to know where to start. Here’s a quick guide:

• Choose soft washing if you have painted siding, composite or concrete-style panels, stucco, vinyl, or mixed materials with high windows.
• Use traditional pressure washing mainly for hard, ground-level surfaces like driveways, some masonry, and certain patios.
• Be extra cautious if you see cracked caulk, aging paint, or any signs of water intrusion around windows or doors — that’s a strong argument for low pressure.

When we build a quote like we did for Janet, we look at the siding type, height, age of the home, and how long it’s been since the last cleaning. Then we recommend the safest method that will actually get the results you want.

Getting Your Home Ready for a Soft Wash

If you’re preparing for a soft wash and window cleaning on a tall home, here are a few simple steps that help the day go smoothly:

• Move outdoor furniture, grills, and decor a few feet away from the siding.
• Close all windows and doors tightly.
• Let us know about any known leaks, damaged screens, or loose trim ahead of time.
• Plan to keep pets inside while we’re working.

Janet also had a few larger items she wanted to donate or haul away before moving. In her case, we coordinated our cleaning visit with junk removal so she could knock everything out in one go — clean windows, fresh siding, and less clutter in the house.

Thinking About Cleaning Your Own High Siding?

We always love a handy homeowner, but when it comes to three-story windows and modern siding, DIY can be risky. The combination of height, water, and pressure equipment is not something we recommend tackling from a ladder.

If you’re not sure what’s safest for your home’s exterior, we’re always happy to take a look (often virtually, like we did with Janet) and walk you through whether soft washing or another method makes the most sense. The goal is simple: a spotless exterior, without putting your siding, windows, or safety at risk.