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Outwash technician cleaning a glass facade with a water-fed pole

10 Questions to Ask a Commercial Window Cleaning Company

Before you sign with a commercial window cleaning company in Toronto, put these ten questions to them. Further down, we answer them for Outwash.

Updated October 2026.

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Client Type
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40+ Google reviews
$5 MillionLiability insurance
WSIBCoverage
Working at HeightsCertified
SPRAT and IRATACertified technicians
The Questions

Ten Questions for Any Commercial Window Cleaner

Put the same ten questions to every company on your list. Then lay the answers side by side.

1. Have you cleaned buildings like ours?

A storefront, an office tower and a warehouse each need different gear and planning.

2. Will you see the site before the final price?

A quote from a photo can miss roof access, glass that is hard to reach or areas with heavy foot traffic.

3. What does the quote include?

Inside, outside, frames, sills, lobby glass, partitions. Get it in writing.

4. What insurance do you carry?

Ask for the liability amount and proof of WSIB coverage.

5. How will you reach the glass?

Water-fed poles, ladders, boom lifts, swing stages or rope access. The building decides.

6. Who is certified for work at heights?

Ask who on the crew holds Working at Heights training and who is certified for rope access.

7. What will you use on the glass?

Ask what touches the glass and the frames, and what the crew does with stubborn spots.

8. How will you keep disruption low?

Ask about timing, signs and how they keep people away from the work zone.

9. What happens if the weather turns?

Wind and rain stop some work. Ask how a day gets moved and who calls you.

10. How will you check the work?

A walk-through at the end is the simplest way to catch anything missed.

Our Answers

How Outwash Answers These Questions

Access (question 5). Up to 6 storeys, most of our work is done from the ground with water-fed poles and four-stage filtered water. Now and then a ladder and a squeegee make more sense. From 7 storeys up, our technicians come down the building on ropes in bosun chairs. Some jobs call for a boom lift or a swing stage instead.

Insurance and training (questions 4 and 6). We carry $5 million in liability insurance and WSIB coverage. Every crew member who works off the ground, ladder work included, holds Working at Heights certification. Our rope access technicians are SPRAT or IRATA certified.

Price and checking (questions 2, 3 and 10). We look at your windows before we price the job, and you get a clear quote based on what you need. At the end, we walk through the finished work with you.

Disruption (question 8). We plan the work to keep disruption to your business low. See our page on commercial window cleaning in Toronto.

Outwash technician in a bosun chair on the side of a high-rise building
Red Flags

Warning Signs When You Compare Quotes

Walk away from a company that will not put the scope in writing or cannot show proof of insurance.

Be wary of a price far below the others, too. Something may be missing, like the inside glass, the frames or the safety gear for the upper floors. And ask how they plan to reach the highest glass. A vague answer is a bad sign.

What Clients Say on Google

Posted on Google Google
John Carpenter profile picture
John Carpenter
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Couldn't be happier with my service. I would recommend these guys to anyone
Posted on Google Google
Owen Mercer profile picture
Owen Mercer
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We hired Outwash to clean our windows and were really happy with the results. The team was friendly, professional, and paid attention to the small details. Everything looked great when they were finished, and we will be using them again.
Posted on Google Google
MD Skin Lab profile picture
MD Skin Lab
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Had our windows cleaned today - great service! Friendly, professional and reliable team. Thank you :)
Posted on Google Google
Setareh Nezami profile picture
Setareh Nezami
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great service, fast response and fair pricing! The crew is friendly and helpful. Happy with how the windows are all cleaned up! They also took care of our garage doors glass although I didnot mention it! Will definitely book with them again near future.
Posted on Google Google
Ivanna Slyvka profile picture
Ivanna Slyvka
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Outwash just finished our windows and I couldn't be more impressed. Booking with them was straightforward, the team arrived right when they said they would, and you could tell they actually cared about treating our place well. The results speak for themselves. Streak-free glass all around, including a few windows I figured were past saving. Great experience overall and they've earned a repeat customer. Would recommend to anyone on the fence!
Posted on Google Google
Yvette Bellerose profile picture
Yvette Bellerose
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Had Outwash do the windows at our place and they were excellent from start to finish. Bren was easy to deal with, the crew showed up on time, and they were careful and respectful around the house. The windows came out spotless, even the ones I'd given up on. Really happy with the service and would absolutely call them again. Highly recommend!
Posted on Google Google
Claudio profile picture
Claudio
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Did a great job on window cleaning, fast efficient and precise
Posted on Google Google
renforth optical profile picture
renforth optical
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Outwash clean the windows on our store. We’ve never seen our windows so clean since moving in. Very friendly and professional! Highly recommend Outwash.
Posted on Google Google
victor le profile picture
victor le
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Amazing service, friendly and efficient 5 Stars!
Posted on Google Google
The Wings Hut Etobicoke profile picture
The Wings Hut Etobicoke
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Two friendly hardworking guys came in and did an amazing job—super clean, neat, and very professional. Highly recommend!

See our reviews on Google

Frequently Asked Questions

Hiring a Commercial Window Cleaner

Can’t find your question below? Call us at 1-647-224-2064.

Outwash technician looking up at a tall building
How often should commercial windows be cleaned?

We recommend at least twice a year, once in spring and once in fall. Storefronts and other busy buildings usually need more frequent cleaning.

Do you clean inside and outside glass?

Both. Besides the outside glass, we clean lobby glass and interior partitions.

Can you set up a regular schedule?

Yes, we can book the visits ahead for your building, so the glass is cleaned before dirt builds up.

How do I get a quote?

Use the form on this page or call 1-647-224-2064. There is no charge for a quote.

Related Services

See how we clean commercial glass at every height.

Outwash technician cleaning a glass facade with a water-fed poleCommercial Window Cleaning Outwash technician in a bosun chair on the side of a high-rise buildingHigh-Rise Window Cleaning Outwash technician cleaning hotel windows with a water-fed poleWindow Cleaning Toronto

More tips for property managers are on our blog.

Contact Us

Send Us a Message. We’d Love to Help.

Tell us about your building and we’ll send you a free quote. Prefer to talk? Call us at 1-647-224-2064.

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