Commercial Exterior Cleaning in Downtown Seattle

At Deep Water Pressure Washing, we take pride in delivering exceptional exterior cleaning services throughout Seattle, Washington. One of our recent projects brought us to the heart of the city—cleaning the exterior of the Hanoki residential building, a 7-story condominium in downtown Seattle. This commercial cleaning project was a true test of teamwork, expertise, and precision. It required a thoughtful combination of patio cleaning, concrete walkway cleaning, siding soft washing, and window cleaning, all while minimizing disruption to the residents of this bustling, high-traffic property.

Project Overview

This full-scale project involved restoring the patios, siding, exterior windows, and concrete walkways of the Hanoki building. Due to the building’s size and layout, our crew had to run pressure washing hoses nearly seven stories up and 300 feet across the entire property. Every step required careful planning and safe execution.

To protect the building’s materials, we used a low-pressure surface cleaner, ensuring a gentle but effective clean. The exterior windows were cleaned using a pure water filtration system, leaving behind crystal-clear, streak-free glass. For the vinyl and stucco siding, we applied a three-part, water-based soft wash solution that eliminated dirt, algae, and other buildup—reviving the building’s appearance while maintaining the structural integrity of the surface.

Challenges & Approach

One of the main challenges we faced during this project was working within a high-traffic residential environment. The Hanoki building is home to many residents, and ensuring uninterrupted access to units was a top priority. To protect interiors, we  placed absorbent cloths on door seals to prevent water intrusion. We also scheduled certain phases of the work during off-peak hours to minimize disturbances and maintain a safe, accessible space for residents.

Another major hurdle was equipment maneuverability at extreme heights. Operating pressure washing hoses and equipment up to seven stories high and across 300 feet demanded exceptional coordination. Our team navigated narrow patio handrails and elevated surfaces with precision and care. A dedicated crew member was stationed at ground level throughout the process, monitoring water runoff and ensuring residents and walkways remained unaffected.

We also prioritized material preservation and surface safety. To prevent rusting or staining of the building’s metal fixtures and hardware, we used a chemical-free cleaning solution. Our low-pressure soft washing method was ideal for delicate surfaces like siding and concrete, preventing damage while still achieving a deep clean. For the windows, we relied on a pure water system to ensure a streak-free finish, followed by detailed cleaning of window seals, screens, and doors—leaving every exterior element looking refreshed and renewed.

Results & Client Satisfaction

The end result was a dramatic transformation. The patios and concrete walkways were restored to a clean, like-new appearance. The siding was spotless, and the windows sparkled without a single streak or fingerprint. The residents were thrilled with the results, and many requested to have us return for regular maintenance cleanings.

Both building management and tenants appreciated the professionalism, care, and quality we brought to the job. The success of this project stands as a strong example of how Deep Water Pressure Washing handles high-rise, high-traffic commercial cleaning with efficiency and attention to detail.

Why Choose Deep Water Pressure Washing?

At Deep Water Pressure Washing, we specialize in commercial pressure washing, patio cleaning, concrete cleaning, siding soft washing, and window cleaning throughout Seattle, Washington, and surrounding areas. With a focus on quality, safety, and long-lasting results, our team is equipped to handle everything from residential homes to multi-story commercial buildings.

If you’re looking for trusted professionals who can tackle even the most complex cleaning challenges, contact Deep Water Pressure Washing today—and let us bring your property back to life!

• Budget: $9,800
• Location: Seattle, WA