Cleanroom Cleaning in Montreal: What to Ask Before You Hire a Provider
The four questions that separate a cleanroom cleaning provider from an office cleaner in a gown, what a good answer sounds like, and when to walk away.
15-minute walkthrough · Written quote in 24 hours · No commitment
Written for facility, quality and lab managers · Cleaned to your protocol · No certification claimed · $5M liability · CNESST-compliant
Before you hire a cleanroom cleaning provider in Montreal, ask four questions: method, frequency, scope and partnership process.
- 1. MethodYour protocol, your approved products, gowned, top-down and clean-to-dirty.
- 2. Frequency by classSet by your class, your activity and your monitoring, not a template.
- 3. ScopeEvery zone, surface and consumable written down, with who supplies what.
- 4. Partnership processWalkthrough, written procedure, a record you open, a fair way to start.
Get all four answered in writing before the first visit. A provider that quotes before it has seen the room is guessing.
Which situation is yours?
The four questions apply to every cleanroom. Which one you ask first depends on where the room is in its life.
"The room isn't finished yet."
You're buying at fit-out, which is the right time. The first clean after construction is its own job, and the procedure should exist before handover.
Start with questions 3 and 4 →These are the four questions a nanofabrication client in Saint-Laurent asked us before signing. They are the right ones.
A cleanroom rarely fails the day you hire the cleaner. It fails months later, quietly.
- The provider brought its own products
- A crew that had never gowned
- A frequency copied from another site
- The gowning room cleaned last
- A scope that stopped at the floor
- No record when the auditor asks
- The room changed, the schedule didn't
Each of these is a question you can ask before you sign.
What to ask, and what a good answer sounds like.
Put these in your request for proposal so every provider answers the same thing, in writing. The follow-ups are what separate a cleanroom provider from a cleaner who owns a gown.
Method
How the room is cleaned, and whose rules decide.
Ask- Will you work only from our approved product and wipe list, at our dilutions?
- What sequence do you follow in the room, and where does the gowning area fall in it?
- How are your technicians gowned, trained and briefed before their first entry?
Your protocol is the procedure. Only products and wipe materials on your approved list, top-down and clean-to-dirty, the gowning area before the classified space, cleanroom-grade ULPA or HEPA equipment used the way your protocol specifies. And a plain statement that they clean to your standard and do not certify or classify the room.
Walk away if they arrive with their own "cleanroom-grade" product line and a certificate you didn't ask for.
Frequency by ISO class
How often each zone is cleaned, and what changes it.
Ask- How would you set frequency for our class and for what actually happens in the room?
- What makes you change the schedule: counts, traffic, maintenance?
- What happens after a filter change, a shutdown or construction work?
Starting points by zone, then adjusted to your room: work surfaces and high-touch points daily or per shift, floors daily to weekly, the gowning area at least as often as the room, walls and ceilings on a periodic cycle. A stricter class usually means more frequent attention, but two rooms of the same class can need different schedules. Your monitoring data should move the schedule, not a calendar.
Walk away if they quote one frequency for the whole room before anyone has seen it.
Scope
What is in, what is out, and who supplies what.
Ask- Which zones and surfaces are in scope: gowning, airlocks, pass-throughs, benches, walls, ceilings?
- Who supplies the vacuum, wipes, chemicals, gowning and water, and who owns them?
- Is the first clean after construction scoped and priced as its own job?
A written scope by zone, down to sticky mats and waste. Equipment and consumables assigned in writing: some operators keep a room-dedicated vacuum they own and supply their own water, others ask the provider to bring it, and either way it is stated, not assumed. The post-construction clean treated as its own job, because dust in seams, frames and above the ceiling grid is not routine maintenance.
Walk away if the scope is one line: "full cleanroom service."
Partnership process
How you start, how each visit is accepted, how problems close.
Ask- What happens between the walkthrough and the first visit?
- How is each visit accepted, and what happens when something is flagged?
- Can we start with a trial period before a longer term?
A walkthrough, then a written procedure you review before day one. Every visit clocked in and out, the checklist in a record you open yourself the same night, anything flagged tracked until it is closed, and inspections you can join. For a first cleanroom contract, a trial period with short notice on both sides is a fair ask.
Walk away if the contract locks you in for years before a single visit.
Want the four answered in writing for your room?
Tell us about your facility →15-minute walkthrough · Written quote in 24 hours · No commitmentThree kinds of provider answer these differently.
No names and no ranking. These are the operating models you meet when a cleanroom request goes out in Montreal, and where each one fits.
| Type of provider | How it usually answers the four questions | Consider it if |
|---|---|---|
| General janitorial contractor | Strong on offices, washrooms and common areas. Often brings its own products and a standard checklist; frequency is whatever the contract says; the cleanroom goes to whoever is on the evening crew. | You need the offices and corridors around the room, not the room itself. |
| Critical-environment specialist | Brings its own documented programs and dedicated teams, often built for regulated, multi-site portfolios. | You want the provider to bring and validate the program across several sites. |
| Protocol-run managed providerCleanerOffices | Works from your procedure and your approved products, writes the scope by zone, and gives you a record of each visit you open yourself. | You own the protocol and want it followed and documented, in Greater Montreal. |
Comparing named companies? See the best commercial cleaning companies in Montreal, compared by operating model. For restricted-access sites, see how to choose a cleaner for a high-security facility.
How CleanerOffices answers the four questions. Your protocol is the standard.
We clean cleanrooms and controlled environments across Greater Montreal to the client's own protocol. We do not certify or classify a room, and we claim no certification.
Open a sample client portal, no form, no call →
Your protocol, your products
Your written procedure and only the chemicals you approve, top-down and clean-to-dirty.
What we wear on site
Hair cover, beard cover, safety glasses, smock, blue nitrile gloves and white shoe covers, over the sticky mat.
Cleanroom-grade ULPA or HEPA
Cleanroom-grade ULPA or HEPA equipment, used the way your protocol specifies.
Agreed for your room
Set with you at the walkthrough from your protocol and your room, and written into the scope.
Written by zone
Gowning, airlocks, benches, floors, walls, mats and waste, with who supplies what spelled out.
Every visit clocked
Every visit clocked in and out, the checklist on record in your private portal the same night.
Photo-free where required
Where your protocol forbids cameras, the task carries no photo. Elsewhere, photos of the work only, never public.
Tracked to closed
Anything flagged stays open until it's resolved, and scored inspections run on a schedule.
Put us through the four questions.
Tell us about your facility →15-minute walkthrough · Written quote in 24 hours · No commitmentTen follow-up questions for every provider.
Same questions, same order, every candidate. Compare the answers, not the brochures.
- Show me the procedure you'd write for our gowning room, in the order you'd clean it.
- Which of our approved products have you worked with, and what do you do if one runs out mid-visit?
- Who is the technician, who is the substitute, and how is the substitute briefed on our room?
- What happens if a technician breaks gowning protocol during a visit?
- How do you clean around equipment you're told never to touch?
- What changes in your schedule after our next filter change or shutdown?
- Who supplies each consumable, and who notices when we're running low?
- How do I see last Tuesday's visit without calling you?
- Where do photos go, and how do you work in a zone where cameras are forbidden?
- Will you sign our confidentiality agreement before the walkthrough?
Writing the procedure first? Read what a cleanroom cleaning SOP must contain. Running a lab beside the room? See laboratory cleaning in Montreal.
Four answers that end the conversation.
- A price before anyone saw the room.
- Their products, not your approved list.
- "We're certified," with no document attached.
- Verification that is a sheet on a clipboard.
And honestly, we're not the right fit if you need a provider to validate your cleaning program, certify or classify the room, or run cleanrooms in several provinces. A critical-environment specialist may serve you better.
If you own the protocol and need it followed and documented in a Greater Montreal room, that's where we fit.
Managers who stopped worrying about cleaning.
"Very good support from CleanerOffices, I have no complaints. The assigned attendant does an excellent job."
"Thank you so much! You can see a detailed cleaning was done. The dust level dropped considerably. My on-site manager told me there's a major difference."
Our cleanroom and laboratory clients are not named here, on purpose. Nanofabrication, photonics, microelectronics and life-sciences sites: you won't become a logo we didn't clear with you.
CleanerOffices cleans cleanrooms, laboratories, offices and industrial facilities across Greater Montreal: Montreal, Laval, the West Island, the North Shore and the South Shore.
Tell us about your cleanroom.
Describe the room, the protocol and who supplies what. We'll answer the four questions in writing and tell you whether CleanerOffices is the right fit. If it isn't, we'll say so.
Tell us about my facility →15-minute walkthrough · Written quote in 24 hours · No commitment
Or call us: (514) 504-2325
Hiring a cleanroom cleaning provider.
What should I ask a cleanroom cleaning provider before hiring them?
Should a cleanroom cleaning company follow our protocol or its own?
How often should a cleanroom be cleaned for its ISO class?
What should a cleanroom cleaning scope include?
Who supplies the vacuum, wipes and chemicals for cleanroom cleaning?
Can a cleaning company certify or classify our cleanroom?
How do I verify a cleanroom visit was done properly?
When should we hire a cleaning provider for a new cleanroom?
What does cleanroom cleaning cost in Montreal?
Will a cleanroom cleaning provider sign a confidentiality agreement?
Related reading: our cleanroom cleaning service, what a cleanroom cleaning SOP must contain, how often a cleanroom should be cleaned, laboratory cleaning in Montreal, data centre and cleanroom cleaning requirements, the best commercial cleaning companies in Montreal, choosing a cleaner for a high-security facility and how we handle confidentiality. For budgeting: what commercial cleaning costs in Montreal.