Spokane, Washington · 21 years in business
Commercial pressure washing for storefronts, lots, and dumpster pads across Spokane.
Everything below this line — the compliance file, operational scorecard, proof-of-work records, dispute protocol, and credentialed reviews — is generated sample content that illustrates the WashAttest record format. It is not real data about Onyx Power Wash. This business is not yet in our directory, so no real data exists for it on this page.
Sample record snapshot
Verified Aug 12, 2026
Trailing 12 months
Attached to this listing
All resolved
Each document is checked against the issuing source and re-verified at renewal. An expired or missing item stays visible on the record.
General liability insurance
Sentinel Insurance — $1M / $2M aggregate
verified
Expires May 31, 2027
Workers' compensation
Sentinel Insurance — statutory limits, 18 employees covered
verified
Expires Mar 19, 2027
Business license
State contractor registration #742623
verified
Expires Jan 3, 2027
Stormwater / NPDES permit
State general permit for exterior cleaning discharge
verified
Expires Feb 11, 2027
OSHA safety program
Documented training program, 0 recordable incidents in 12 months
verified
No expiry on file
Water reclamation and discharge
Trailing 12 months, drawn from 71 documented visits. These are the numbers a star rating hides.
Arrived within the agreed service window
Visits requiring a return trip
Median time to first reply
Documented nightly capacity
Contracts renewed at term
Recordable incidents per 1,000 visits
Documentation attached to this listing and reconciled against billing, so a claim about work performed can be checked rather than taken on faith.
Timestamped photo pairs captured at the start and end of each scheduled visit, retained for 24 months.
Per-visit log recording date, unit identifiers, services performed, and the crew on site.
Current certificate naming the required additional insured, re-verified at each renewal.
Record of water recovered, method used, and discharge destination for each wash event.
A business can answer a review with evidence. The record shows the claim, the response, the evidence, and the outcome — including when the review was upheld.
No disputes have been filed against this listing.
22 of 25 reviews come from a verified operator role. Roles on this listing: Facility manager, Restaurant owner, Retail operations manager, Store manager, Shopping center manager, Building engineer, Property manager.
Lionel B.
Facility manager
Oct 16, 2026
Our gas station canopy in Spokane had a layer of grime that nothing else touched. They used hot water and a degreaser that actually worked.
Commercial Pressure Washing · Spokane, Washington · via Yelp
Gavin Q.
Restaurant owner
Aug 3, 2026
We had to hire another company to finish the church parking lot. The church parking lot was left half done.
Commercial Pressure Washing · Spokane, Washington · via Yelp
Cecilia Z.
Facility manager
Jul 19, 2026
We needed the parking lot cleaned before a corporate walkthrough in Spokane. They used hot water and a degreaser that actually worked.
Commercial Pressure Washing · Spokane, Washington · via Yelp
Alison Y.
Restaurant owner
Jul 11, 2026
They pressure washed our office building entrance and the difference is night and day. The concrete looks much better. A few stubborn stains remain.
Commercial Pressure Washing · Spokane, Washington · via Google
Shane F.
Retail operations manager
Jul 3, 2026
Our medical plaza sidewalk had years of gum, oil, and grime built up. They finished ahead of schedule and under the quote.
Commercial Pressure Washing · Spokane, Washington · via Google
Chad L.
Store manager
Jun 7, 2026
They pressure washed our restaurant patio and the difference is night and day. Our inspection passed with zero cleaning-related notes.
Commercial Pressure Washing · Spokane, Washington · via Google
Julian F.
Store manager
Jun 3, 2026
Work was fine. Communication was poor throughout. We had to call twice to get the before-and-after photos.
Commercial Pressure Washing · Spokane, Washington · via Yelp
Desmond S.
Store manager
May 30, 2026
Booked commercial pressure washing for our sidewalk in Spokane. No damage to the paint, signage, or landscaping.
Commercial Pressure Washing · Spokane, Washington · via Yelp
Brandon F.
Shopping center manager
Mar 29, 2026
They came out to our Spokane property and cleaned the sidewalk top to bottom. The sidewalk is no longer a slip hazard.
Commercial Pressure Washing · Spokane, Washington · via Yelp
Nathan C.
Store manager
Mar 11, 2026
Our dealership lot in Spokane had a layer of grime that nothing else touched. Good service. They had to come back for the dumpster pad.
Commercial Pressure Washing · Spokane, Washington · via Google
Gavin V.
Shopping center manager
Feb 26, 2026
We needed the fast-casual patio cleaned before a corporate walkthrough in Spokane. Happy with the clean. Scheduling took a couple of follow-ups.
Commercial Pressure Washing · Spokane, Washington · via Yelp
Danielle U.
Facility manager
Feb 13, 2026
They removed oil stains from our storefront that I thought were permanent. Our customers noticed the difference the same day.
Commercial Pressure Washing · Spokane, Washington · via Direct
Frank O.
Restaurant owner
Feb 11, 2026
They did the work, but the crew arrived well outside the window. The gum on the sidewalk was only partly removed.
Commercial Pressure Washing · Spokane, Washington · via Yelp
Cecilia W.
Retail operations manager
Jan 17, 2026
The restaurant patio was slick with grease and now it is safe to walk on. No damage to the paint, signage, or landscaping.
Commercial Pressure Washing · Spokane, Washington · via Google
Malik J.
Building engineer
Dec 21, 2025
They worked around our business hours in Spokane without a single complaint. No damage to the paint, signage, or landscaping.
Commercial Pressure Washing · Spokane, Washington · via Google
Kyle N.
Property manager
Nov 19, 2025
Booked them for the retail center after a bad storm in Spokane. They finished ahead of schedule and under the quote.
Commercial Pressure Washing · Spokane, Washington · via Google
Jasmine W.
Retail operations manager
Nov 15, 2025
The convenience store forecourt at our facility was embarrassing before they came out. They used the right pressure so nothing was damaged.
Commercial Pressure Washing · Spokane, Washington · via Direct
Grant W.
Restaurant owner
Sep 29, 2025
The school walkway at our facility was embarrassing before they came out. Happy with the clean. Scheduling took a couple of follow-ups.
Commercial Pressure Washing · Spokane, Washington · via Yelp
Ross N.
Restaurant owner
Sep 28, 2025
Our restaurant patio in Spokane is now part of our monthly maintenance. The gum removal alone was worth the price.
Commercial Pressure Washing · Spokane, Washington · via Google
Brett M.
Building engineer
Sep 20, 2025
Our hotel entrance in Spokane was the first thing customers saw — now it is spotless. Pleased with the result. Communication could be more proactive.
Commercial Pressure Washing · Spokane, Washington · via Direct
Xavier B.
Building engineer
Sep 14, 2025
We had them out to our Spokane location for the medical plaza sidewalk and the loading area. They documented everything with photos for our records.
Commercial Pressure Washing · Spokane, Washington · via Direct
Tyler D.
Property manager
Aug 14, 2025
They pressure washed the shopping center walkway and the dumpster area in one visit. They used hot water and a degreaser that actually worked.
Commercial Pressure Washing · Spokane, Washington · via Google
Derek G.
Store manager
Jul 21, 2025
Commercial pressure washing in Spokane that actually works around your hours. Great outcome. I would have liked more notice before they arrived.
Commercial Pressure Washing · Spokane, Washington · via Yelp
Marcus N.
Retail operations manager
Jun 25, 2025
The convenience store forecourt at our Spokane site had a black film of grime on it. They worked overnight so we did not lose a single hour of business.
Commercial Pressure Washing · Spokane, Washington · via Facebook
Megan W.
Store manager
May 11, 2025
Our drive-thru lane was a grease magnet — not anymore. They used the right pressure so nothing was damaged.
Commercial Pressure Washing · Spokane, Washington · via Google
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Spokane, Washington
Scheduled commercial pressure washing built around your operating hours.
Spokane, Washington
Exterior cleaning crews handling concrete, grease, gum, and graffiti for Spokane businesses.
Spokane, Washington
Commercial pressure washing for storefronts, lots, and dumpster pads across Spokane.