How to Choose a Commercial Cleaning Company in Portland: 10 Questions Facility Managers Should Ask

Cartoon facilities manager reviewing a cleaning-company checklist in an office lobby.

10 Questions to Ask Before Hiring a Commercial Cleaner

Quick Answer: The right commercial cleaning company should provide a clear scope of work, trained and accountable staff, documented quality-control procedures, proper insurance, dependable communication, and experience with facilities like yours. Compare companies on how they handle staffing, inspections, supplies, security, and issue resolution, not just on the monthly price.


Choosing a commercial cleaning company is not just about finding the lowest monthly quote. The right provider should understand your building, document what will be cleaned, communicate consistently, and have systems in place when staffing changes or an issue comes up.


Before you sign a janitorial contract or switch cleaning companies, ask these 10 questions.

1. What exactly is included in the scope of work?

A professional cleaning company should provide a clear written scope of work that lists the areas to be cleaned, the tasks included, and how often each task will be completed. It should spell out routine items such as restrooms, trash removal, vacuuming, dusting, break rooms, and entryways, as well as periodic services like floor care, carpet cleaning, interior glass, or deep cleaning.

Do not rely on a vague promise to “clean the office nightly.” Ask what happens daily, weekly, monthly, and as needed. You should also know what is not included before work begins, so there are no surprises later.

2. How will you staff my facility consistently?

Ask whether the company uses employees, subcontractors, or a combination of both, and ask who will be responsible for staffing when a regular cleaner is sick, on vacation, or leaves the company. Consistency matters because a cleaner who knows your building, access procedures, priorities, and problem areas can usually deliver more reliable results.

A good provider should be able to explain its training process, supervision, backup coverage, and who your point of contact will be if staffing changes. The goal is not necessarily to have the exact same person forever; it is to have a dependable system that prevents service from falling apart when personnel changes.

3. How do you inspect work and address quality problems?

Cleaning should not rely solely on a client noticing and reporting missed work. Ask how the company verifies quality: supervisor walkthroughs, checklists, inspection reports, site visits, photo documentation, or scheduled client check-ins are all examples of useful accountability systems.

Also ask what happens when there is a missed task or concern. A solid answer includes a clear reporting method, a realistic response process, and follow-up to make sure the issue was corrected—not just an apology.

4. Who do I contact after hours or when there is an urgent issue?

Facilities do not always have problems between 9:00 a.m. and 5:00 p.m. A spill, overflowing restroom, broken supply dispenser, event cleanup need, or access issue may require attention outside standard office hours.

Before hiring a cleaning company, ask who handles urgent requests and how you should reach them. You should know whether there is an after-hours phone number, a supervisor on call, an email or ticket process, and what type of response you can reasonably expect. Avoid companies that cannot explain what happens when something goes wrong.

5. Are you insured, and how do you protect our building and access?

A commercial cleaning company should be prepared to provide proof of insurance and explain its approach to building access, keys, alarm codes, badges, security procedures, and employee screening where applicable. Depending on your facility, you may also want to ask about confidentiality, visitor protocols, sensitive areas, and who is authorized to enter the building.

For Oregon businesses with employees, workers’ compensation coverage is generally required, including for part-time employees. Asking for appropriate proof of coverage protects both the cleaning company’s workers and your organization.

6. Do you have experience cleaning facilities like mine?

An office, medical or dental practice, retail location, shared commercial building, school, industrial setting, and property-management common area all have different priorities. A company may be good at routine office cleaning but not be the right fit for a site with strict access controls, sensitive equipment, high-traffic restrooms, specialty floors, or daytime porter needs.

Ask for examples of similar facilities they serve and what cleaning challenges they commonly handle in those environments. Relevant experience usually leads to a more realistic scope, better staffing plan, and fewer learning-curve issues after startup.

7. What products, equipment, and safety procedures do you use?

Ask which cleaning products and equipment will be used in your facility, whether green-cleaning options are available, and who supplies consumables such as toilet paper, paper towels, hand soap, liners, and dispensers. If chemical sensitivities, sustainability goals, healthcare requirements, or specific surface-care needs apply to your facility, discuss them before service begins.

For hazardous cleaning chemicals, Safety Data Sheets should be accessible, and workers should be trained on chemical labels, hazards, required protective equipment, and first-aid procedures. A responsible cleaning partner should be comfortable discussing product safety and providing relevant documentation when requested.

8. How is the price determined, and what could change it?

A trustworthy quote should be based on more than square footage. Pricing can depend on the number of restrooms, occupancy, foot traffic, cleaning frequency, floor types, building layout, waste volume, security requirements, supply responsibilities, service hours, and any specialty work.

Ask whether the quote is fixed, what it includes, and which circumstances could lead to added charges. For example, an initial deep clean, post-event cleanup, emergency service, carpet extraction, floor refinishing, or additional supply usage may be outside a standard recurring contract. A lower price is not always a lower total cost if the scope is incomplete or the cleaning hours are unrealistic.

9. Can you provide references, examples, or proof of performance?

A good cleaning company should be able to provide relevant references, testimonials, case examples, or a clear explanation of how it has helped similar clients. You do not need confidential client information, but you should be able to get a sense of the company’s reliability, communication style, retention, and problem-solving ability.

When checking a reference, ask practical questions: Did the company start on time? Has service been consistent? How do they handle issues? Would the client hire them again? Those answers are usually more valuable than a generic five-star rating.

10. What does the startup process look like?

A good start is one of the strongest predictors of a successful cleaning relationship. Before the first shift, the cleaning company should complete a walkthrough, confirm the scope of work, identify priority areas, establish access procedures, clarify supply locations, introduce key contacts, and confirm how issues will be reported.

For a facility changing providers, ask whether an initial deep clean is recommended and whether there will be a first-week or first-month quality check. The objective is to set clear expectations early instead of spending the first few months correcting misunderstandings.

Choose clarity. not just the lowest bid.

The right commercial cleaning partner makes your job easier. They provide a detailed scope, communicate clearly, staff your facility reliably, and take responsibility when something needs attention.

When you compare commercial cleaning companies in Portland, use the same questions with every bidder. That makes it easier to evaluate proposals fairly and choose a provider based on service systems and accountability, not just the number at the bottom of the quote.

Need a commercial cleaning proposal for your Portland-area facility?

Myles O’Donnell and Company can walk your building, discuss your priorities, and provide a detailed scope of work so you know exactly what to expect before service begins. Give us a call today to get started with your free quote: 503-653-5760 or head over to the contact page.

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Your Commercial Cleaning Questions, Answered: A Friendly FAQ from Myles O'Donnell & Co.