Buyer’s Guide · Calgary 2026
How to Choose the Best Commercial Cleaning Company in Calgary
The best commercial cleaning company for your building is the one that can prove it is safe to hire and can show exactly what it will do. In Calgary that means a WCB Alberta clearance letter, liability insurance, bonding, trained crews, a written scope of work, a fixed price, and a supervisor who inspects the work every week. Reviews and price come after those basics.
Use the 10 checks below when you compare janitorial and commercial cleaning companies.
10 Checks Before You Sign a Cleaning Contract
1. A WCB Alberta clearance letter
Ask for a current clearance letter. If a cleaner's worker is hurt on your property and the company is not in good standing with WCB Alberta, the liability can land on you. A reputable company sends the letter the same day you ask.
2. Commercial general liability insurance
Ask for a certificate of insurance naming your company or building as an additional insured. Check the policy limit and expiry date.
3. Bonding
A bonded cleaning company carries protection against theft or damage by its staff. It matters most when crews hold keys, fobs or alarm codes after hours.
4. Trained, consistent crews
Cleaners work alone in your building at night. Ask whether every crew member is WHMIS-trained, and whether the same crew returns to your site.
5. A written scope of work
A good proposal lists every task and how often it is done, area by area. If the quote is a single monthly number with no scope, you have nothing to hold the cleaner to.
6. Clear pricing terms
Ask what pricing adjustments the agreement permits and how they are documented, and what is included versus extra (strip-and-wax, carpet extraction, day porter, supplies).
7. An inspection program
Find out who checks the work and how often. Weekly in-person supervisor inspections against the written scope catch problems before your tenants or staff do.
8. A guarantee for missed items
Ask how quickly a missed item or complaint is fixed, and who your single point of contact is.
9. Experience with your type of building
A medical clinic, a dealership showroom, a warehouse and a Class-A tower each need different products, procedures and security protocols. Ask for experience in your sector.
10. Real, recent reviews and references
Read Google reviews for specifics, not just stars, and ask for a reference from a building similar to yours.
Red Flags When Hiring a Commercial Cleaner
- Quotes a price over the phone without seeing the building
- Cannot produce a WCB clearance letter or insurance certificate
- No written scope, only a monthly total
- Cannot tell you who will be cleaning your building or what training they have
- No inspection schedule or single point of contact
- Price far below every other quote (corners will be cut somewhere)
Questions to Ask on the Site Walk-Through
- Who will clean my building, and will it be the same crew each night?
- How do you handle keys, fobs, alarm codes and sign-in?
- What products do you use on my floors, glass and finishes?
- How do I report a problem, and how fast is it fixed?
- How soon can you start after I approve the scope?
How NorthPeak Measures Up
NorthPeak Commercial Cleaning is bonded and insured, and every crew member is WHMIS-trained and covered by WCB Alberta. Our team brings 10+ years of commercial cleaning experience. Every client gets a written scope, a fixed price on a 1- or 2-year agreement, weekly in-person supervisor inspections and a 24-hour resolution guarantee for missed items. Most programs start within one week of approval. For what drives price, read our commercial cleaning cost guide.
Insured and bonded, with WCB Alberta coverage for our crews. Our certificate of insurance and WCB clearance letter are available on request before work begins.
Choosing a Commercial Cleaner: Questions
How do I choose a commercial cleaning company in Calgary?
Check five basics first: a WCB Alberta clearance letter, a liability insurance certificate, bonding, trained crews and a written scope of work. Then compare fixed pricing, the inspection program, experience with your type of building and recent reviews.
What should a commercial cleaning contract include?
A task-by-task scope with frequencies for each area, the price and what pricing adjustments the agreement permits, what periodic services are included, the inspection schedule, how missed items are handled, and the contract length and exit terms.
Why does WCB coverage matter when hiring a cleaner?
In Alberta, if a contractor's worker is injured on your property and the contractor is not in good standing with WCB, the property owner or principal can face liability. A clearance letter confirms the cleaning company is covered.
Is the cheapest commercial cleaning quote a good choice?
Not usually. A quote well below the others often means fewer labour hours than the building needs, which shows up as missed tasks. Compare quotes against the same written scope.
What is the difference between janitorial and commercial cleaning?
The terms overlap. Janitorial usually means routine recurring cleaning such as nightly offices and washrooms. Commercial cleaning also covers periodic and project work such as floor stripping and waxing, carpet extraction and post-construction cleaning.