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Questions to ask a commercial carpet cleaner before you sign
A short interview tells you more about a carpet cleaning company than its brochure does. These are the questions worth asking, and what a solid answer sounds like.
Interview the company, not just the price
Many problems with a carpet cleaning company, such as gray lanes, unchecked crews and spots that return, can be caught in a short conversation before anything is signed. The trick is to ask open questions and listen for specifics. A company that knows its craft explains its reasons; a vague answer is an answer too.
The Carpet and Rug Institute publishes a short list of questions for owners hiring a cleaner, including whether the company vacuums before deep cleaning, how pricing is structured, whether technicians hold IICRC credentials and whether furniture is moved. The questions below start from that list and add the ones that matter in an occupied commercial building.
Method and products
Start with the work itself. The answer should change from area to area, because a lobby, a quiet office and a carpet tile classroom rarely need the same treatment.
- Which method would you use in each area, and why that one?
- Do you vacuum thoroughly before deep cleaning?
- How do you plan around the hour each room has to reopen?
- Which cleaning products do you use, and can we see them listed?
- Are your solutions and equipment part of CRI’s Seal of Approval program?
That last question has a reason behind it. CRI runs a Seal of Approval program that tests cleaning solutions and equipment, and CRI 204 notes that many carpet manufacturers now require approved products and methods to maintain their warranties. Our side-by-side look at cleaning methods explains how extraction, encapsulation and bonnet cleaning differ, so you can judge the answers you get.
Skills and proof
Ask how technicians learn the job and what proof the company can show. The IICRC S100 standard for professional carpet cleaning covers cleaning chemistry, soil management, equipment, methods, safety, inspection before and after cleaning, and spot and stain removal. A useful question is simply how the company teaches crews each of those topics, and who checks that the skill shows on your floor. If your organization requires a particular credential for technicians, name it in the interview and ask for documentation rather than a verbal yes.
It is also fair to ask how a new technician is brought up to speed, and whether someone experienced works beside them before they handle a building on their own. The answer tells you whether the company builds skill on purpose or simply hands over a machine.
CRI’s list also asks how pricing is structured. In an interview, that means asking whether the quote rests on measured square footage area by area or on a count of rooms, what each visit includes, and what would be billed separately, such as moving furniture or extra spot calls. You are not after a number yet; you want to know what the eventual number will cover.
Insurance, screening and supervision
These are the people who will be in your building after hours, often alone. Ask directly:
- Will you send a certificate of insurance before the first visit?
- Does your coverage include workers’ compensation and general liability?
- Are you bonded?
- Are crew members background-checked?
- Who supervises the crew, and how often are visits inspected?
The certificate should arrive as a document, not a promise. A company that names a supervisor and describes how inspections work is telling you who answers when something is missed.
Scheduling and the building
Good cleaning on the wrong night still causes trouble. Ask which evenings, weekends or gaps between bookings the company can work, how long each area will be out of use, and how crews handle locked suites, alarms and keys. Ask whether furniture is moved and returned, how desks and chairs are protected on damp carpet, and whether entrance mats are part of the visit. For a medical suite or a school, ask how the crew works around rooms that stay in use. If you manage office buildings, ask how the plan changes between private offices, open floors and conference rooms.
Records, warranties and returning spots
Two questions separate a careful company from a quick one. First: what record do you leave after each visit? A dated note listing the areas, the method and the products used belongs in your carpet file, because manufacturers judge warranty claims against their own maintenance terms, which vary from one manufacturer and product to another. Interface’s published maintenance guide, to take one, recommends hot water extraction alone for restorative cleaning and states plainly that bonnet or rotary methods “may void all warranties.” So ask the company to go through your warranty’s maintenance section before it settles on a method.
Second: what happens if a spot comes back? CRI 204 describes wicking, in which liquid, soil or residue left deep in the carpet travels up to the fiber tips as the carpet dries. A returning spot is a known event, not a mystery. Ask whether a return visit for spot and stain removal is part of the plan and how you request one.
How we answer these questions
Ask us any of them at the free walkthrough. We explain the method we would use in each area and why, with low-moisture encapsulation where a room has to reopen quickly and hot water extraction where soil sits deep enough to need a full flush, and we read the maintenance section of any warranty you share before the plan is set. Our own answers to the insurance and crew questions are short: a certificate of insurance for every client, insurance and bonding backed by workers’ compensation, background-checked crews, and supervisors who run quality inspections. Your written quote then puts every answer on paper. Schedule your walkthrough.
A few useful answers
Common questions.
What is the most important question to ask a commercial carpet cleaner?
Ask which method they would use in each area and why. A specific, area-by-area answer shows the company has looked at your carpet, your traffic and your schedule rather than quoting one process for the whole building.
Should a carpet cleaner provide a certificate of insurance?
Yes. Ask for it before the first visit and check that it shows workers’ compensation and liability coverage. A certificate is a document you can file, which a verbal assurance is not.
What should we ask about our carpet warranty?
Ask whether the company will read the maintenance section of your warranty before choosing methods and products, and whether it leaves a dated record of each visit. Because each manufacturer and product comes with different terms, the plan has to be built around yours.
Should we ask when the crew can work and how long areas stay closed?
Yes. Ask which nights or weekends the crew can come, how long each room stays out of use after cleaning, and who handles keys and alarms. Clear answers show the company has planned around the way your building runs.
Is it reasonable to ask how crews are screened and supervised?
Yes. Crews often work after hours in occupied buildings, so ask whether they are background-checked, who supervises them and how visits are inspected.
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