How Much Does Roof Cleaning Really Cost in Snohomish or Lake Stevens WA?

If you live in the Pacific Northwest, chances are you’ve looked at your roof and wondered, "What’s growing up there? And how much will it cost me to clean it off?"

The truth is, roof cleaning prices in Snohomish and Lake Stevens vary depending on several key factors, but getting accurate information upfront can help you make a smart, safe decision for your home.

What’s the Average Cost for Roof Cleaning?

In our area, professional roof cleaning generally begins at $450, with final pricing based on the size, condition, and pitch of your roof. Below is a general guide by roof surface square footage:

• Small homes, up to 1,500 sq ft: starting at $450

• Medium-sized homes, up to 2,500 sq ft: starting at $750

• Larger homes, up to 3,500 sq ft: starting at $1,050

• Extra large homes, 4,500 + sq ft: starting at $1,350

These prices reflect soft washing, which is a low-pressure, eco-friendly cleaning method that’s safe for shingles and highly effective at removing moss, algae, and grime.

What Affects the Price?

1. Roof size and slope: More surface area and steeper pitch = higher cost.

2. Type of roof material: Asphalt shingles, tile, and metal each require different techniques.

3. Moss or algae severity: Heavy moss growth takes longer to clean safely.

4. Height and access: Multi-story homes or hard-to-reach roofs may require more equipment.

5. Extras: For example, moss preventative powder will increase cost.

Is It Worth the Investment?

Absolutely. Here’s why it pays off:

• Extends the lifespan of your roof

• Prevents costly damage from moss and algae

• Enhances curb appeal and increases home value

• Can reduce insurance concerns about roof age and condition

Plus, when done professionally using a soft wash system, it’s safe, efficient, and far less risky than DIY pressure washing.

Get a Custom Quote

Every home is different. At Pure Pressure Wash, we provide free estimates based on your unique property. No gimmicks. Just honest transparent pricing and great results.

• Instant Estimate Tool

• Free custom estimate

• Call or Text: 425-238-0104

Pure Pressure Wash provides more than just roof soft washing. We also handle debris removal after storms and apply moss prevention treatments if that’s all you need. Beyond roofs, we offer house soft washing, window cleaning, surface cleaning, deck and fence cleaning, and more.