What to Look for When Hiring a Dental Office Cleaning Company in Ontario

Why Dental Office Cleaning Is a Different Category Entirely

Most commercial cleaning companies clean offices. They dust surfaces, empty bins, mop floors, and wipe down common areas. That is entirely adequate for a law firm or an accounting office. It is not adequate for a dental practice.

The Royal College of Dental Surgeons of Ontario (RCDSO) requires all Ontario dental practices to follow Infection Prevention and Control (IPAC) standards for environmental cleaning. These standards specify disinfectant types, application methods, contact times, zone-based workflows, and written documentation requirements. A cleaning company that doesn't know what IPAC means — let alone follow its protocols — puts your practice licence at risk every time they walk through the door.

1. Verified IPAC Compliance — Ask for the Protocol in Writing

Every cleaning company serving dental offices in the GTA will tell you they are IPAC-compliant. Very few can actually demonstrate it. There is a significant difference between a company that has read about IPAC and one that has a written, zone-specific cleaning protocol they follow on every visit.

Ask the company to provide their written IPAC cleaning protocol for a dental operatory before you sign anything. A legitimate protocol will specify:

• The dirty-to-clean workflow sequence for each zone
• Specific disinfectants used by product name and DIN number
• Required contact (dwell) times for each product on each surface type
• How they handle the sterilization area vs. clinical contact surfaces vs. non-clinical surfaces
• How cross-contamination between zones is prevented (colour-coded cloths, dedicated equipment per zone)
• What written documentation is completed and left after each service

If a company cannot provide this document, or if their answer to these questions is vague, they do not have a real IPAC protocol. Move on.

2. Health Canada DIN-Registered Disinfectants — Ask for Product Names

Ontario IPAC standards require hospital-grade disinfectants with Health Canada Drug Identification Numbers (DINs) in all clinical areas of a dental office. General-purpose cleaners — the kind used in offices, schools, and retail spaces — are not acceptable for operatories, sterilization areas, or restrooms in a dental practice.

DIN-registered hospital-grade disinfectants cost significantly more than standard commercial cleaners and require specific training to use correctly. They have mandatory contact times — the surface must remain visibly wet for a defined period before being wiped — and must be diluted or applied precisely according to manufacturer instructions to achieve their kill claims.

3. Current WSIB Clearance Certificate — Request the Document

This is one of the most overlooked requirements when Ontario businesses hire service contractors, and the consequences of skipping it can be severe.

A WSIB (Workplace Safety and Insurance Board) clearance certificate confirms the cleaning company is registered with Ontario's workplace injury compensation system and in good standing. If a cleaning employee is injured at your practice and the company does not have active WSIB coverage, your practice can be held liable for their compensation claim. This exposure is real and is not covered by your general liability insurance.

Do not accept a verbal assurance of WSIB coverage. Request the actual clearance certificate. It is a document issued by the WSIB and has a validity period — confirm it is current, not expired. A legitimate company will provide this without hesitation as part of any contract discussion.

4. Liability Insurance — Verify the Amount and Scope

Any cleaning company working in a dental practice should carry a minimum of $2 million in general liability insurance — and $5 million is the standard for reputable commercial cleaning providers. This coverage protects your practice if a cleaner damages equipment, causes a flood, or is responsible for a facility incident.

Ask for a certificate of insurance naming your practice as an additional insured on the policy. This is standard in commercial service contracts and any experienced company will know exactly what you're asking for. If a company is reluctant to provide this or claims it isn't necessary, that is a red flag.

Also confirm that the policy covers work in healthcare and dental environments specifically. Some commercial liability policies exclude healthcare facilities or have specific exclusions that could leave you without coverage in the event of a claim.

5. Dental-Specific References — Not Just Commercial References

Almost every cleaning company will offer references. The question is what kind. A company that primarily cleans office towers and warehouses may have an excellent track record in those environments — and still be entirely unequipped for dental office compliance.

Ask specifically for references from dental practices — ideally practices of a similar size and type to yours. When you speak with those references, ask:

• Does the company provide written cleaning logs after every service?
• Have you had any RCDSO assessment findings related to facility cleanliness or environmental cleaning since working with this company?
• Have you ever had to ask the company to correct their protocol or products?
• How long have you been using this company — months or years?

Longevity matters. A company that has served a dental practice for three-plus years without issues is a much stronger signal than a company that started three months ago and has had no problems yet.

6. Written Cleaning Logs After Every Service

RCDSO IPAC standards require dental practices to maintain documentation of their environmental cleaning program. In practice, this means a written log should be completed and left at your practice after every cleaning service, confirming what was cleaned, what products were used, and that the service was performed to protocol.

Written logs serve two purposes. First, they give you a verifiable record for RCDSO assessments — an inspector who asks about your environmental cleaning program should be able to see a complete log history. Second, they are your only protection if there is a dispute about whether a service was performed correctly. A company that does not provide written logs is asking you to take their word for their compliance on faith.

Ask to see a sample cleaning log before you sign a contract. It should include date and time, areas cleaned, products used with DIN numbers, the name of the cleaning technician, and a sign-off confirming completion to protocol. A log that says "office cleaned ✓" is not a compliant dental cleaning log.

7. Staff Training and Background Checks

Cleaning staff in a dental office have access to your facility after hours, in proximity to patient records, equipment, and materials. Background checks on all staff entering your practice are standard for any reputable dental cleaning company.

Beyond security, staff training matters directly for compliance. IPAC protocol requires specific handling of clinical contact surfaces, correct use of registered disinfectants, and proper zone separation. General commercial cleaning training does not cover these areas. Ask the company specifically what IPAC training their staff have received and whether that training is documented.

Also ask about staff consistency. A different cleaner every week means re-learning your practice layout and protocol every week — and greater risk of protocol gaps. The best dental cleaning companies assign the same technician to your practice consistently, with a designated backup who has also been trained on your specific facility.

The Questions to Ask Before Signing

What Separates a Dental Cleaning Company from a Commercial Cleaning Company

The distinction matters more than most practice managers realise until they have their first RCDSO assessment. Here is what a genuinely dental-specific cleaning company will have that a general commercial company typically will not:

Zusashi Maintenance has provided IPAC-compliant dental office cleaning across the GTA since 2007. Every service includes written cleaning logs, Health Canada DIN-registered disinfectants, WSIB clearance, and $5M liability coverage. Our dental cleaning staff receive formal IPAC training and the same technician is assigned to your practice on a consistent basis.

We provide dental office cleaning in Markham, Vaughan, Newmarket, Toronto, Mississauga, and surrounding GTA communities. If you are currently evaluating cleaning companies for your practice, we are happy to provide our written IPAC protocol, product DIN list, current WSIB clearance certificate, and dental references in advance of any site visit.

Frequently Asked Questions

What should I look for when hiring a dental office cleaning company in Ontario?

The seven key things to verify: written IPAC protocol by zone, Health Canada DIN-registered disinfectants with product names on request, current WSIB clearance certificate, $2M+ liability insurance (ideally $5M), dental-specific references, written cleaning logs after every service, and documented staff IPAC training. A company that can answer all seven questions specifically and immediately is a company that genuinely serves dental practices.

Does a dental office cleaning company need to follow IPAC protocols in Ontario?

The RCDSO requires the dental practice to maintain IPAC-compliant environmental cleaning — the legal obligation is yours, not the cleaning company's. In practice, this means if your cleaning company doesn't follow IPAC protocols, your practice is non-compliant regardless of who performed the cleaning. Always verify IPAC compliance in writing before any contract is signed.

What is a WSIB clearance certificate and why does a dental office need it from their cleaner?

A WSIB clearance certificate confirms the cleaning company is registered with Ontario's Workplace Safety and Insurance Board and in good standing. Without it, if a cleaning worker is injured at your practice, you may be held liable for their compensation. Always request the actual certificate — not just a verbal assurance — and confirm it is current before signing a contract.

How do I verify that a cleaning company actually uses Health Canada DIN-registered disinfectants?

Ask for specific product names and 8-digit DIN numbers for every disinfectant used in clinical areas. You can verify any DIN on the Health Canada Drug Product Database. A compliant company will answer this immediately with exact product names. Vague answers like "hospital-grade products" without specific names and numbers are a signal the company is not using registered disinfectants in your clinical areas.

Should I ask for references from other dental offices specifically?

Always. Dental office references are far more useful than general commercial references. Ask those practices specifically whether the company provides written logs, whether they have had any RCDSO assessment findings related to facility cleanliness, and how long the relationship has been in place. A company that has served a dental practice for three or more years without issues is a much stronger signal than any amount of marketing language.

What is the biggest mistake dental offices make when choosing a cleaning company?

Choosing on price. A company quoting standard commercial rates for a dental office is not following IPAC protocols or using Health Canada DIN-registered disinfectants — because the cost of those products and the time required to use them correctly cannot be absorbed at standard commercial rates. Non-compliance risk falls on your practice licence. The cheapest quote is always the highest-risk option.