Window Cleaning

Commercial Window Cleaning in Seattle

From high-rise window cleaning to trash chute sanitation, commercial dryer vent fire safety, pressure washing, and specialty rope access — SkySWC keeps Seattle's buildings clean, compliant, and well-maintained. One company. Every service. No runaround.

4.9 Stars

Google — 54 verified reviews

OSHA-Trained

members

SPRAT-Certified

rope access technicians

$8MM+ Insurance

1MM auto, 2MM GL, 5MM umbrella

SkySWC is Seattle's commercial window cleaning specialist, serving high-rise towers, mid-rise office buildings, and low-rise retail properties across King and Snohomish County. We are the only company in the Seattle area operating the proprietary HighRise™ remote-controlled window cleaning system — delivering streak-free results on every building, at every height.
Property managers, building owners, and facility directors trust SkySWC for scheduled maintenance contracts, post-construction cleans, and one-time services. Our crews are SPRAT-certified for rope access, OSHA-trained, and carry $8MM+ in commercial insurance coverage — with certificates of insurance available on request.

Trusted by Seattle's Most Recognizable Properties

We provide ongoing maintenance contracts for high-rises, commercial buildings, hotels, and residential condominiums across King, Snohomish, and Pierce Counties. Our clients trust us because we show up, do the work right, and make their jobs easier.

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High-Rise, Mid-Rise, and Low-Rise Commercial Window Cleaning

We clean every commercial building type across the Seattle metro — from single-story storefronts to 40-story towers. Our approach, equipment, and access method are selected based on your building's specific height, facade configuration, and roof anchor availability.

High-Rise

Office towers, hotels, condos, and residential high-rises. We use our proprietary HighRise™ remote-controlled cleaning system and SPRAT-certified rope access for safe, streak-free results at any elevation

Mid-Rise

Office parks, apartment buildings, medical facilities, and retail centers. Combines bosun chair, water-fed pole, and aerial lift access depending on building configuration.

Low-Rise

Storefronts, small offices, warehouses, restaurants, and low-rise commercial properties. Interior and exterior cleaning available with flexible scheduling around business hours.

Commercial Property Types We Serve

Our commercial window cleaning services cover the full spectrum of commercial real estate in the greater Seattle area:

Office buildings
and corporate campuses

including Downtown Seattle, South Lake Union, and the Eastside

High-rise
residential and mixed-use towers

condominiums, apartment buildings, and multi-use developments

Hotels and hospitality properties

scheduled maintenance programs that work around guest operations

Medical
centers and hospitals

credentialed crews with background checks and photo ID

Retail
centers and storefronts

interior and exterior cleaning, including storefront window cleaning

Post-
construction cleaning

construction debris, adhesive residue, and paint removal for general contractors and developers

Government and institutional buildings

including City of Seattle facilities

Iconic and specialty properties

we have cleaned the Space Needle, Lumen Field, and Chihuly Garden and Glass

Our Technology and Approach

We invest in equipment that competitors simply do not have. Every tool we use is selected to deliver cleaner windows faster, with less risk to your building and our crews.

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HighRise™ Remote-Controlled Window Cleaning System

SkySWC is the only company in Seattle operating the HighRise™ — a self-climbing, remotely operated window cleaning machine that cleans exterior glass, sills, and frames from the ground. It leaves no scaffolding, no swing stage, and no disruption to your tenants. Windows cleaned with the HighRise™ stay cleaner significantly longer than hand-cleaned glass

Purified Water System

For low- and mid-rise applications, we use water-fed pole systems fed by purified, deionized water. Because purified water contains no minerals, it leaves absolutely no spots, streaks, or residue when it dries — no squeegee required.

SPRAT-Certified Rope Access

For buildings with limited roof anchors, hard-to-access facades, or areas where mechanical equipment cannot reach, our SPRAT-certified technicians use industrial rope access techniques. This is the same methodology used for high-altitude construction and inspection — far safer and more cost-effective than scaffolding or boom lifts.

Bosun Chair and Aerial Lift Access

Depending on roof anchor configuration and building height, we also deploy traditional bosun chair and aerial lift systems — all operated by trained, OSHA-compliant crews.

Scheduled Window Cleaning Maintenance Contracts

Most of our commercial clients opt for ongoing maintenance contracts rather than one-time services. A scheduled program means your building always looks its best, and you are never scrambling to find a vendor before a property inspection, investor visit, or lease renewal.

We build custom maintenance schedules — monthly, quarterly, bi-annual, or annual — based on your building type, tenant mix, and budget. Contracts can be structured as either a capital improvement expense or an operating expense to suit your accounting needs.

Benefits of a SkySWC maintenance contract:

  • Priority scheduling — your building moves to the front of the queue
  • Locked-in pricing — no rate increases mid-contract
  • Single point of contact — one account manager for all buildings in your portfolio
  • Certificate of insurance on file — always available when your property manager needs it
  • Bundled services — combine window cleaning with trash chute cleaning, dryer vent cleaning, gutter cleaning, or pressure washing for a single-vendor solution
Request Custom Quote

Why Seattle Property Managers Choose SkySWC

Proven Track Record with Seattle's Most Recognized Buildings

We have cleaned the Space Needle, Hyatt Regency, Lumen Field, T-Mobile, REI, Chihuly Garden and Glass, and dozens of Seattle's highest-profile commercial properties. Our work has been featured on KOMO News, KING 5, and KATU. When Seattle needs high-access window cleaning done right, SkySWC is the call.

Safety and Compliance

All window cleaning work is performed in full compliance with OSHA and ANSI fall protection standards. We carry $1MM commercial auto, $2MM general liability, and $5MM umbrella coverage. All employees pass rigorous background checks, wear photo ID badges, and arrive in clearly marked SkySWC vehicles.

Transparent Contracts — No Surprises

We provide detailed, written scope of work with every quote. No hidden charges, no surprise add-ons, and no rescheduling without notice. Our 4.9-star Google rating across 54 reviews reflects the consistency our clients experience on every service visit.

One Vendor for Your Entire Building Exterior

SkySWC is not just a window cleaning company. We offer trash chute cleaning, commercial dryer vent cleaning, pressure washing, gutter cleaning, building envelope maintenance, moss removal, and screen cleaning — all from one vendor, all to the same standard. Most property managers who start with windows add at least one additional service within the first year.

Get a Free Commercial Window Cleaning Quote

Whether you manage one building or a portfolio of properties, SkySWC makes commercial window cleaning simple. Contact us for a free, no-obligation site assessment and written proposal.

FAQ

How much does commercial window cleaning cost in Seattle?

Commercial window cleaning pricing depends on several factors: building height, number of panes, frequency of service, interior vs. exterior scope, and the access method required. A single-story retail storefront will be priced very differently from a 30-story office tower. We provide detailed, itemized quotes at no charge — contact us for a free site assessment and we will turn around a proposal within 24 hours.

How often should commercial windows be cleaned?

Most commercial buildings in Seattle benefit from at least two professional cleanings per year — once in spring following the rainy season and once in fall before it begins. High-traffic retail and hospitality properties typically schedule quarterly or monthly service. We will recommend a frequency based on your building's specific exposure, foot traffic, and appearance standards.

Do you offer window cleaning maintenance contracts?

Yes. The majority of our commercial clients are on scheduled maintenance programs. We build custom contracts around your building's needs, structured either monthly, quarterly, bi-annually, or annually. Contracts include priority scheduling, locked-in pricing, and a single point of contact for your entire portfolio.

Are you OSHA-compliant for high-rise window cleaning?

All SkySWC window cleaning operations are performed in full compliance with OSHA and ANSI fall protection requirements. Our rope access technicians are SPRAT-certified. We carry $8MM+ in commercial insurance and will provide a certificate of insurance to your property management team before any work begins.

Do you clean both interior and exterior commercial windows?

Yes. We offer interior and exterior commercial window cleaning on request. Our crews are background-checked, badged, and trained to work in occupied buildings with minimal disruption to tenants and daily operations.

What areas of Seattle do you serve?

SkySWC serves the greater Seattle metro area including Downtown Seattle, South Lake Union, Capitol Hill, First Hill, Eastlake, Belltown, and surrounding King and Snohomish County cities. We maintain separate location pages for Bellevue, Redmond, Kirkland, and other Eastside cities.