How to Choose a Window Cleaning Company in Montreal

Choosing the right window cleaning company for your commercial building is a decision that affects safety, liability, tenant satisfaction, and your budget. In Montreal, dozens of companies offer window cleaning services — but not all are created equal. Here is what property managers should look for before signing a contract.
1. Verify Certifications
For any building over two storeys, your window cleaning contractor should have SPRAT-certified technicians. SPRAT (Society of Professional Rope Access Technicians) certification ensures that workers have been professionally trained in rope access techniques, safety procedures, and rescue operations. Ask for proof of current certification — not expired or pending.
2. Confirm Insurance Coverage
This is non-negotiable. Your contractor must carry comprehensive general liability insurance (minimum $2M recommended) and workers' compensation through CNESST. Request a certificate of insurance before any work begins. A reputable company will provide this without hesitation. If a contractor cannot produce insurance documents, walk away.
3. Check CNESST Compliance
In Quebec, all employers must be registered with the CNESST and comply with workplace health and safety regulations. A compliant contractor protects you from liability if an accident occurs on your property. Ask for their CNESST registration number and verify it is active.
4. Ask the Right Questions
Before hiring any window cleaning company, ask these critical questions:
- What certifications do your technicians hold? (Look for SPRAT Level 1, 2, or 3)
- Can you provide a certificate of insurance naming our building as additional insured?
- What safety protocols do you follow? (Job hazard analysis, rescue plans, daily equipment checks)
- How do you handle bad weather? (Professional companies have clear rescheduling policies)
- Do you carry CNESST-compliant workers' compensation?
- Can you provide references from similar buildings in Montreal?
- What is included in your pricing? (Beware of hidden fees for access equipment or travel)
5. Evaluate Their Track Record
Ask for references from buildings similar to yours — same height, same type, same neighbourhood if possible. A company that has successfully cleaned 20-storey towers downtown is better suited for your high-rise than one that primarily does residential work. Check Google reviews and ask other property managers in your network.
6. Compare Proposals, Not Just Prices
The cheapest quote is rarely the best value. Compare what is included: number of cleanings per year, interior and exterior coverage, frame and track cleaning, screen removal, before-and-after documentation, and safety compliance. A slightly higher price that includes comprehensive service and proper insurance is always the better investment.
LavPro is proud to meet every criterion on this list. We are SPRAT-certified, carry $2M in liability insurance, are fully CNESST compliant, and provide transparent, detailed proposals. Request your free estimate today.
