
Kennewick Commercial Cleaning Pros
Reliable Cleaning Support Since 1986
At Intermountain Cleaning Service, we’ve been helping businesses across the Tri-Cities stay clean and operational for decades. In Kennewick, our clients rely on us for steady crews, flexible scheduling, and tailored service plans that fit their building, not just a checklist.
Our team members are carefully vetted and background-checked, so you can feel confident about who’s in your building. Whether you manage an office, medical clinic, school, or industrial facility, we support clean, functional interiors that reflect the professionalism of your team.
Need a walk-through? Call (509) 797-7327 or contact us online to schedule a service and get a free estimate.



Janitorial Services for Kennewick Businesses
From shift-based routines to after-hours janitorial work, we clean around your operations to avoid interrupting the flow of your day. While many businesses choose a regular schedule, we also offer deep cleaning and short-term service plans.
Our team adjusts to local conditions, like dust during dry seasons or tracked-in mud in the winter, so your space stays clean and presentable year-round.
Carpet, Upholstery & Floor Care
We handle more than just surface dirt. From breakroom carpet spots to full floor refinishing, we use low-moisture, quick-drying methods that help preserve your floors and reduce downtime.
Seasonal needs like post-winter salt removal or tile and grout cleaning in high-traffic areas are part of our regular offerings.
Targeted Disinfection & Sanitizing
Routine cleaning handles the basics. For high-touch surfaces, we offer disinfection using EPA-approved products and electrostatic sprayers.
These services are often added during flu season, after illness, or when new teams move in. You can schedule one-time disinfection or add it to your regular cleaning plan.
Post-Construction Cleaning & Turnovers
With Kennewick’s continued development, construction dust and tenant turnovers are a regular part of our work. We’re often called in after remodels, buildouts, or lease transitions.
We handle leftover debris, adhesive residue, paint splatter, and dust. Pressure washing and window cleaning are also available when needed.


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Friendly, fast, easy to contact, literally have almost any cleaning service you.- Brian S.
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We’ve used Intermountain for years. They are a quality organization.- Doug F.
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These people are amazing!! Superb, quality work.- Eric W.
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Their office is just down for my parents' house I have a lot of stuff that go in and out I'm parked but they are always very kind and respectful and courteous.- Toni L.
Consistent Crews & Local Accountability
Intermountain Cleaning Service provides reliable commercial cleaning with consistent, in-house crews who are licensed, bonded, insured, and background-checked. We don’t subcontract or rotate teams, our staff is trained to get familiar with your building, schedule, and expectations, so you’re not repeating instructions every visit. We offer flexible scheduling (including weekends), and free estimates, designed to support consistent, reliable upkeep from the start.
Looking for a Reliable Commercial Cleaning Partner?
We’re not part of a national chain, and we don’t force you into one-size-fits-all contracts. At Intermountain Cleaning Service, we build your plan together, then follow through with dependable, ongoing support.
Whether you need full-service janitorial care or seasonal help, we’re here to make things easier.
Proudly serving Kennewick and the Tri-Cities. Call (509) 797-7327 or contact us online to get a free estimate or schedule a service.
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Our cleaning professionals are fully vetted, insured, and trained to provide safe, detailed, and dependable service.
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If you're not happy with any part of your clean, contact us within 24 hours and we’ll make it right—at no extra charge.
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Our Detail-Clean Rotation System ensures every clean is thorough, efficient, and held to the highest standard of quality.
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Serving Eastern Washington since 1986, we bring reliable, community-focused cleaning backed by over 30 years of expertise.