Commercial cleaning & janitorial, Bay Area & Central Valley. info@s3concepts.com (510)-435-5078
(510)-435-5078 Request a quote
A clean, modern commercial office

Commercial Cleaning Services in the
Bay Area & Central Valley

Janitorial, office, medical, warehouse and post-construction cleaning, with documented scopes, consistent crews and fixed monthly pricing.

Licensed & insuredBondedBackground-checked crewsCommercial onlyLocally ownedFree facility walkthroughsLicensed & insuredBondedBackground-checked crewsCommercial onlyLocally ownedFree facility walkthroughs

Commercial facilities are
our entire business.

Offices, medical buildings, industrial and warehouse space, restaurants and post-construction. One-time projects or a recurring schedule, always on a written scope.


Service

Documented scopes, consistent crews, and after-hours schedules that keep us out of your way.

Satisfaction

Supervisor inspections on a schedule, so the standard you buy is the standard you keep.

Solutions

Janitorial, construction cleanup, floor care and disinfection under one contract and one contact.

Who we serve

Built for Your Kind of Facility

Five kinds of building, each with its own standards, access rules and schedule. We scope every account against the way your facility actually runs.

Offices & Business Parks

Offices & Business Parks

Corporate suites, coworking floors and multi-tenant business parks. The cleaning has to be invisible: done overnight, to a documented scope, by a crew that knows the floor plan and has its own access.

  • Nightly or weekly
  • Desks, common areas, restrooms
  • After-hours access
See the program
Medical & Dental

Medical & Dental

Clinics, dental suites, labs and medical office buildings. Exam rooms, treatment areas and waiting rooms each carry their own requirements, and what gets touched in one room must not be carried into the next.

  • Documented protocols
  • Colour-separated materials
  • Scheduled around appointments
See the program
Industrial & Warehouse

Industrial & Warehouse

Distribution centres, production floors and logistics yards. Forklift traffic and dock grit destroy a finish specified for a lobby, so we specify for the load the floor actually takes.

  • Auto-scrubbed floors
  • High-bay and racking dusting
  • Shift-change scheduling
See the program
Restaurants & Food Service

Restaurants & Food Service

The least forgiving buildings we clean. The work happens between close and open, and the areas guests judge you on are the same ones that take the most punishment during service.

  • Overnight service
  • Back-of-house degreasing
  • Open clean every day
See the program
Post-Construction

Post-Construction

New builds and tenant improvements for general contractors. Construction dust keeps resurfacing for weeks if the first clean is not done properly, so we work in phases around your punch list.

  • Rough clean and final clean
  • Adhesive and grout haze
  • Pre-handover touch-up
See the program
What we do

Ten Commercial Programs

Every program is available as a one-time project or on a recurring schedule. Same crews, same written scope either way.

An S3CONCEPTS crew at work
The Gold Standard of Clean

One scope. One price.
One point of contact.

Four commitments on every account, and you can hold us to all of them.

  • 01

    One written scope

    It comes out of walking your building, room by room, not off a template with your name pasted on it. You know exactly what is being cleaned and how often.

  • 02

    One fixed price

    Equipment, cleaning products and restroom consumables are in the number. No line items appearing on the invoice that nobody mentioned.

  • 03

    One point of contact

    One person who answers the phone and owns the answer, instead of a call centre and a rotating account manager.

  • 04

    Documented quality checks

    A supervisor walks the site on a schedule and records what they find, so the standard you bought in month one is the standard in month twelve.

Already have a cleaning company?

Any of This Sound Familiar?

  • The crew is different every week, so nothing gets learned about your building
  • Quality was good for a month and then quietly drifted
  • Your account manager is hard to reach when something goes wrong
  • You are the one chasing, every time
  • Nothing is written down, so nothing can be measured
  • Charges appear on the invoice that were never discussed
  • Problems get acknowledged and then not corrected

Then let us walk it.

We will walk your facility, document exactly what needs doing, and put a fixed monthly price in writing. If it is not better than what you have, keep what you have.

Schedule a free walkthrough Call (510)-435-5078
In their words

Why Facility Managers Choose S3CONCEPTS

The owner walks it herself

“She came out personally to do a walkthrough, listened to our specific requirements, and developed a customized cleaning plan that perfectly fits our schedule and budget.”
Renato Delnevo, Google review

Crews that turn up and finish the job

“They are consistently punctual, professional, and incredibly thorough. The attention to detail is what sets them apart, our high-traffic areas are always spotless.”
Renato Delnevo, Google review

Detail people actually notice

“Attention to detail was excellent, and everything looked spotless. It’s clear they take pride in their work.”
Jennifer Dulkevich, Google review
Shannon Washington, founder of S3CONCEPTS Founder
Meet the owner

Shannon Washington

Shannon Washington started S3CONCEPTS in 2022, bringing a background in sales and service to an industry where both are usually an afterthought. She still does the walkthroughs herself, which is why the scope you are quoted matches the building you actually have.

“She came out personally to do a walkthrough, listened to our specific requirements, and developed a customized cleaning plan.” Renato Delnevo, Google review

Black woman-owned businessFounded 2022Licensed, insured & bonded
More about S3CONCEPTS
Where we work

Serving the Bay Area & North Central Valley

Seventeen cities across four regions, each with its own page.

Before you call

Questions We Get Asked Most

How much does commercial cleaning cost?

It depends on square footage, how often you need service and what is in scope, so we do not publish a rate that would be wrong for your building. Every quote follows a free walkthrough and arrives as one fixed monthly figure with supplies included.

Do you offer one-time cleans, or only recurring service?

Both. Every program can be booked as a one-time project or set on a recurring schedule. Post-construction and deep cleans are usually one-time; janitorial is usually recurring, but neither is a rule.

Can you work after hours, overnight or at weekends?

Yes. Most of our accounts are serviced when the building is empty, whether that is overnight, before opening or at a weekend. Industrial sites are often scheduled around a shift change.

Do you bring your own equipment and supplies?

Yes. Equipment, cleaning products and restroom consumables are included in your price unless you would rather supply your own. We use eco-conscious products as standard.

Are your employees background checked?

Yes, every crew member, on every account. We are licensed, insured and bonded, and certificates of insurance are available on request for your property manager or facilities team.

What happens if I am not happy with a clean?

You call one person, not a call centre, and it gets corrected. Supervisor inspections happen on a schedule and are recorded, so recurring problems get caught rather than repeated.

See all questions
Let’s walk your facility

Schedule a Free Walkthrough

No obligation. We walk the facility, document the scope and provide a fixed monthly price in writing. You keep the scope whether or not you go ahead.

Phone  (510)-435-5078
Email  info@s3concepts.com
Licensed, insured & bonded
Serving the Bay Area & North Central Valley

No obligation. We will walk the facility, document the scope and provide a fixed monthly price.