Frequently asked questions
Straight answers about how Star’s Janitorial Services works in Concord and the East Bay. Still have a question? Call (925) 521-4048 or request a quote.
What areas does Star's Janitorial Services cover?
Star's Janitorial Services covers Concord, California and the surrounding East Bay. We regularly serve commercial clients throughout Contra Costa County and nearby communities including Walnut Creek, Pleasant Hill, Oakland, Dublin, and San Ramon. Our home base is Concord, and every account is dispatched locally.
How does Star's Janitorial pricing work?
Pricing is quoted per facility, not off a fixed price list. We walk your building, map a detailed scope for each visit (including monthly and quarterly items), and give you a written proposal with a fair, transparent price. Recurring janitorial accounts are billed on a set schedule; one-time and project cleans are quoted as a flat rate.
Is Star's Janitorial Services registered and insured?
Yes. Star's Janitorial Services holds California Janitorial Services Registration #929771. We are a family owned commercial cleaning company based in Concord, California, and we are happy to provide current registration and insurance details as part of any proposal so property managers and facility owners can vet us with confidence.
Do you subcontract your cleaning work?
Ninety-five percent of our business is managed by our own employees. Five percent is maintained by our contractors, who have a long-standing relationship with Star's. This keeps quality consistent and accountable on every East Bay account.
Do you accept credit cards?
Yes, at an additional cost. We also accept standard business payment methods for recurring janitorial accounts across Concord and Contra Costa County.
Do you provide cleaning supplies and equipment?
Yes, we do. Star's brings its own commercial-grade cleaning supplies and equipment to every job, so you do not have to stock or maintain anything.
Is Star's Janitorial Services a franchise?
No. Star's Janitorial Services is a family owned and operated company, not a franchise. When you call, you reach the Concord-based owners who put their name on the quality of every job.
How do you ensure the quality of your cleaning services?
We schedule quality walkthroughs and make sure our service meets your expectations. Our crews receive ongoing training and supervision, and we follow detailed service scopes, with photo documentation available for applicable services and projects.
Can you provide a bid without seeing the building?
It is best to conduct a walkthrough so we can give you an accurate, custom quote. We will visit your Concord or East Bay facility, map the scope, and return a detailed written proposal.
Can I reach you outside of business hours?
Yes. Clients can contact us at any time at (925) 521-4048, and we respond as promptly as possible. We also build flexible schedules around your operating hours to minimize disruption to your workday.
Do you offer recurring cleaning or just one-time service?
We offer both. Most of our Concord and East Bay clients are on recurring janitorial contracts (nightly, weekly, or a custom route), but we also handle one-time deep cleans, move-in and move-out turnovers, and post-event cleanups. You choose the cadence that fits your facility.
What types of facilities does Star's Janitorial clean?
Star's cleans commercial and institutional facilities across the East Bay: office buildings, medical offices, warehouses, manufacturing plants, industrial buildings, apartment complexes, HOA common areas, and educational facilities. If it is a commercial space in Contra Costa County, we can scope it.
How do I get a quote from Star's Janitorial Services?
Call (925) 521-4048 or email info@starsjanitorialservices.com, or send a request through our contact form. We schedule a walkthrough of your Concord or East Bay facility, then return a detailed written proposal.
How fast does Star's Janitorial respond?
Fast response is one of the things our clients mention most. Requests are answered promptly, proposals turn around quickly, and our supervisor coordinates crews locally so schedule changes and add-on requests can be handled promptly.
Can you handle disinfection and high-touch sanitizing?
Yes. We include disinfection of high-touch surfaces and can add enhanced sanitizing to any recurring or one-time scope. This is standard for the medical offices, childcare centers, and shared facilities we serve across Contra Costa County.
Why choose a local Concord janitorial company over a national chain?
Because a local, family-owned team is accountable to you, not a call center. Star's Janitorial Services is based in Concord, California and has served the East Bay since 2012. You get direct communication, photo documentation available for applicable services and projects, and owners who put their name on the quality of every job. Note: several unrelated companies share the 'Star Janitorial' name in other states; we are the Concord, California business serving Contra Costa County.
How much does commercial cleaning cost in Concord, CA?
Star's Janitorial Services does not publish flat rates because every facility is different. Pricing depends on your building size, cleaning frequency, scope of work, and the type of facility - a medical office or manufacturing plant is scoped differently than a standard office suite. The best way to get an accurate number is a free walkthrough: we visit your Concord or East Bay facility, map the scope in detail, and return a written proposal. Call (925) 521-4048 or use our contact form to schedule.
How much does janitorial service cost per month for a business in Contra Costa County?
There is no universal monthly rate for janitorial service in Contra Costa County because pricing varies with square footage, cleaning frequency, and the full scope of work. Rather than publish figures that may not reflect your situation, Star's Janitorial walks every prospective account, scopes the work in writing, and delivers a transparent proposal - no hidden fees, no guesswork. Contact us at (925) 521-4048 to schedule your free walkthrough.
Do you serve Walnut Creek, Pleasant Hill, and Martinez?
Yes. Star's Janitorial Services operates throughout the Concord, CA area and serves commercial clients across Contra Costa County, including Walnut Creek, Pleasant Hill, Martinez, and surrounding communities. We are a local, family-owned business and most of our clients are in the East Bay. Contact us to confirm service availability at your location.
Do you serve Pittsburg and eastern Contra Costa County?
Yes. We serve commercial clients throughout eastern Contra Costa County, including Pittsburg and surrounding communities. Star's Janitorial has been operating in this region since 2012, and we have clients throughout the county in offices, warehouses, HOA facilities, and manufacturing plants. Reach out at (925) 521-4048 to discuss your location and scope.
Do you offer nightly or after-hours cleaning in Concord?
Yes. Star's Janitorial Services offers after-hours and nightly cleaning for commercial clients in Concord and throughout Contra Costa County. We schedule around your business hours so your team comes in to a facility that was cleaned overnight, without disruption during operating hours. Evening and overnight schedules are available seven days a week.
Do you clean medical offices and healthcare facilities in the Concord area?
Yes. Star's Janitorial Services provides professional cleaning for medical offices, dental offices, and healthcare facilities in Concord and the surrounding Contra Costa County area. Every account starts with a walkthrough, and the scope is written room by room so the frequencies match how each space is actually used. Photo documentation is available on request.
Do you clean manufacturing plants and warehouses near Concord, CA?
Yes. Industrial and warehouse cleaning is one of our specialty service areas. We serve manufacturing facilities, warehouse operations, and industrial buildings throughout Contra Costa County. Our cleaning programs for these environments include floor care, breakroom and restroom sanitation, trash removal, and any specialized cleaning your operations require. We work around production schedules to minimize impact on your workflow.
Do you clean apartment complexes and HOA common areas in Contra Costa County?
Yes. Star's Janitorial Services provides cleaning for apartment complex common areas and HOA shared spaces throughout Contra Costa County. This includes lobbies, hallways, clubhouses, fitness rooms, and other community amenities. Our property management clients trust us because we show up reliably, respond quickly to requests, and follow detailed service scopes, with photo documentation available for applicable services and projects.
Do you clean educational facilities and private schools in the Concord area?
Yes. We serve educational facilities including private schools, daycare centers, and tutoring centers in the Concord, CA area. Clean, hygienic environments are especially important where children are present, and our team is trained to meet those higher standards. We can build a cleaning schedule that works around school hours and academic calendars.
Do you provide a certificate of insurance to our management company?
Yes. We provide a certificate naming the association on request, which most management companies require before a crew is on site. Star's holds California Janitorial Services Registration #929771.
Can you service our community before residents are up?
Yes. Fitness rooms and main corridors are commonly scheduled in an early-morning window so service does not conflict with peak resident use. We are based in Concord, which is what makes early-morning windows across Contra Costa County practical.
Do you clean schools and childcare centers in Contra Costa County?
Yes. We service schools, preschools, and childcare centers on after-hours routes that start once the building is clear of children. We try to prioritize consistent crew assignments when possible, so familiar faces tend to show up at your site and your site lead knows who to expect.
What cleaning products do you use in classrooms?
EPA-registered products rated for child-occupied spaces, used at labeled contact time and rinsed where the label requires it. We default to low-fragrance or fragrance-free formulations in education accounts because scent sensitivity complaints are common in facilities with children.
How do you clean a warehouse concrete floor?
With an automatic scrubber, not a mop. A scrubber lifts the concrete fines out in the recovery tank; a mop redistributes them as a film that bonds under forklift traffic. Machine choice depends on open floor area and aisle width, and pad grade is selected to clean without cutting the sealer.
Do you clean racking and dock areas, or only the floor?
Both, when they are named in the scope. Dock aprons and thresholds should be serviced weekly at minimum because that is where abrasive grit enters the building, and the bottom two feet of racking should be named explicitly because it is the most commonly skipped area in a warehouse contract.
How often should a commercial exterior be pressure washed in the East Bay?
Entryways, sidewalks, and dumpster pads generally need service two to four times per year. Properties with food service, heavy foot traffic, or drive-through lanes usually need quarterly. Buildings under significant tree canopy often need an additional fall service for leaf tannin staining.
Do you pressure wash apartment breezeways and parking structures?
Yes. Breezeways, stairwells, and parking structure decks are common requests across Contra Costa County communities.
Is Star's actually based in Concord?
Yes. Star's Janitorial Services is family owned and headquartered in Concord, California, and has serviced Contra Costa County since 2012. Being local is why early-morning service windows and a point of contact you can actually reach are realistic rather than aspirational.
What happens on a walkthrough?
We walk the property with you, count the spaces and fixtures that drive labor, confirm real access and timing constraints, and return a written scope with a frequency table per space plus an explicit exclusions list. There is no charge and no obligation. Call (925) 521-4048.
Does Star's Janitorial Services serve Contra Costa County?
Yes. Concord is our headquarters, and Contra Costa County sits at the center of a four-county footprint covering 46 cities and communities across the East Bay, South Bay, and Central Valley. Family-owned commercial cleaning since 2012.
What kind of commercial facilities do you clean?
Office buildings, educational facilities, manufacturing plants, apartment complexes and HOAs, warehouses, medical and veterinary offices, gyms and fitness studios, and industrial buildings.
Is Star's Janitorial Services insured?
Star's holds California Janitorial Services Registration #929771. We carry both general liability and workers compensation coverage, and we provide a certificate of insurance on request.
How does a new account start?
With a walkthrough of your facility. We map a written scope, set a schedule that fits your operation, and send you a detailed proposal. No pressure, just a plan.
Do you offer one-time cleans, or only recurring service?
Both. Recurring janitorial service is our core business, and we also handle one-time and periodic work including hard surface floor care, carpet cleaning, window cleaning, pressure washing and gutter cleaning.
Do you clean medical and dental offices?
Yes. Medical and facility cleaning is one of our service lines. Every account starts with a walkthrough, and we write the scope room by room so the frequencies match how the space is actually used. Before-and-after photo documentation is available on request.
Do you provide floor care?
Yes. Hard surface floor care is one of our service lines, normally scheduled as an add-on to a recurring janitorial contract.
Can you provide a certificate of insurance?
Yes, normally within two to three business days. Any client can be named as an additional insured, and for HOA and property-management accounts we provide a certificate naming the association. Star's holds California Janitorial Services Registration #929771.
Do you clean warehouses with active forklift traffic?
Yes. We schedule cleaning windows around your shift handovers and dock schedules. Warehouse and industrial cleaning is one of three verticals we call out specifically, alongside HOA and apartment common areas and school and childcare facilities.
What is included in HOA common area cleaning?
Interior lobbies and elevator vestibules, corridors and stairwells, fitness rooms, mail and package rooms, laundry rooms, clubhouse interiors, pool decks and pool restrooms, and trash and recycling enclosures. Pool chemistry, landscaping, and unit interiors are excluded and stay with the association's other vendors or the residents.
How do you handle a missed spot?
You have a single local point of contact based in Concord, not a national call center, and you can request before-and-after photos to check the work against your written scope.
What areas of Alameda County do you serve?
Alameda County is part of our East Bay footprint, including Oakland, Alameda, Albany, Emeryville, Fremont, Hayward, Livermore, Pleasanton, Dublin, Newark, San Leandro, Union City, Castro Valley and San Lorenzo.
How do I get a quote?
Call (925) 521-4048 or request a quote at starsjanitorialservices.com. Tell us about your facility and we will walk it, scope it, and send you a detailed proposal. No pressure, just a plan.
What counties does Star's Janitorial Services cover?
Contra Costa and Alameda in the East Bay, Santa Clara in the South Bay, plus Los Banos in the Central Valley. That is 46 cities and communities, all served by local crews, with our headquarters in Concord.
What does a written scope of work actually include?
Every area of your facility, every task in that area, and how often each one happens. Restrooms, floors, high-touch surfaces, breakrooms, trash, and anything specific to your building. We map it during the walkthrough so the schedule fits how your operation actually runs, not a generic checklist.
Who will I be dealing with?
A single local point of contact based in Concord. Star's is family-owned: Maria M. Hernandez founded the company in 2012 and Briana Cruz, her daughter, runs client communication and account satisfaction. When you call, you reach the people responsible for your building, not a national call center.
Do you clean schools and childcare facilities?
Yes. Educational facility cleaning is one of our service lines and one of three verticals we call out specifically. Scheduling is built around your calendar so cleaning happens outside instructional hours.
How are your crews trained?
Most of our crew members are W-2 employees, continuously trained and supervised against the written scope for each facility. Before-and-after photo documentation is available on request, and it gives you a record too.
Do you work in Concord specifically?
Concord is our headquarters and our largest service area, which is why our Concord clients mention responsiveness first.
Can you clean outside normal business hours?
Yes. Most recurring accounts are cleaned outside your operating hours, and for HOA and apartment common areas we schedule an early-morning window so residents are not disturbed. After-hours access is coordinated with documented access logs and alarm-code procedures, and a supervisor is reachable for emergencies.