Hiring the wrong cleaning service costs more than just money — it means dirty break rooms, missed trash pickups, and employees who notice. Getting this decision right takes more than a quick Google search and picking whoever answers first.
Define What Your Office Actually Needs
Before you contact a single vendor, get clear on your scope. A 1,500 sq ft startup with 10 people has completely different needs than a 20,000 sq ft law firm with daily client foot traffic.
Ask yourself:
- Frequency: Do you need daily, three-times-a-week, or weekly service?
- Scope: Standard cleaning only, or do you need carpet shampooing, window washing, or restroom sanitization?
- Timing: After hours only, early morning, or during business hours?
- Special areas: Server rooms, medical-grade cleaning, kitchen deep cleans, or high-touch surface disinfection?
Writing this down before you reach out means every quote you receive is comparing the same thing.
Know What to Look for in a Provider
Not all commercial cleaning companies operate at the same level. When evaluating vendors, prioritize these factors:
Licensing and insurance — Any legitimate office cleaning service should carry general liability insurance (minimum $1M per occurrence) and workers' compensation. Ask for certificates before signing anything.
Commercial experience — Residential cleaners and commercial janitors are not interchangeable. Look for companies with documented experience in office environments specifically, not just "cleaning services."
Staff vetting — Find out if employees are background-checked and whether the company uses W-2 employees or 1099 subcontractors. Subcontractors introduce more risk and less accountability.
Quality control processes — How does the company verify work is done correctly? Look for inspection checklists, supervisor walkthroughs, or app-based reporting tools.
Supplies and equipment — Do they bring their own, or do you supply? What cleaning products do they use? If your office has LEED certification goals or chemical sensitivities among staff, this matters.
Get Quotes the Right Way
Expect to gather at least three competitive bids. Pricing for office cleaning typically runs $0.05 to $0.20 per square foot for routine janitorial services, though this varies significantly by region, scope, and frequency.
When requesting quotes, give each company the same written spec sheet — the one you created in step one. Ask each vendor to break out costs by service so you can see exactly what you're paying for rather than comparing opaque lump sums.
Red flags during the quoting process:
- Quotes given over the phone without a walkthrough
- Pricing dramatically lower than all other bids (often signals corner-cutting or underpaid labor)
- Vague scope of work with no itemization
- Pressure to sign immediately
A thorough provider will want to walk your space before committing to a price. That's a good sign, not an inconvenience.
Ask the Right Questions Before Signing
Once you've narrowed to two or three finalists, schedule brief calls or meetings and ask directly:
- Who will be assigned to our account, and will it be the same crew each visit?
- What happens if a scheduled cleaner doesn't show up?
- How do we report issues, and what's your response time?
- What's the contract length, and is there a cancellation clause?
- Do you carry crime coverage in case of theft by employees?
A company that answers these confidently and specifically is far more trustworthy than one that gives you vague reassurances.
Compare Providers Side by Side
One of the most time-consuming parts of this process is tracking multiple vendors across emails, calls, and notes. Mercoly lets you compare and find trusted office cleaning providers in one place, so you can evaluate credentials, services, and pricing without the back-and-forth.
Review the Contract Carefully
Before you sign, confirm the contract includes:
- A detailed scope of work (not just "general cleaning")
- Frequency and scheduled visit times
- Pricing locked for a defined term
- Termination conditions and notice period (30–60 days is standard)
- What happens if quality falls short
Month-to-month agreements give you flexibility but may come at a slight premium. Annual contracts often include better pricing but require you to trust the vendor upfront. A 90-day trial clause is a reasonable middle ground to negotiate.
Start With a Trial Period
Even after signing, build in a formal review at 30 and 60 days. Walk the space after cleanings, use a checklist, and give structured feedback. The best cleaning companies expect this and respond to it — it's how a productive long-term relationship gets built.
Switching vendors is disruptive and time-consuming, so taking an extra two weeks to vet properly at the start pays for itself many times over.
Start your search today and get quotes from vetted office cleaning services that match your exact requirements.