Durham's #1
Window Cleaners
Ready to transform your home?
Our Services
SERVICES
Exterior Window Cleaning
Exterior Window Cleaning
Spotless exterior cleaning using pure water-fed pole systems and traditional mop & squeegee methods.
Interior Window Cleaning
Interior Window Cleaning
Streak-free interior cleaning. Smudges and buildup removed.
Track Cleaning
Track Cleaning
Tracks & sills deep-cleaned like new.
Gutter Cleaning
Gutter Cleaning
Clear clogged gutters. Protect your home from water damage.
Screen Cleaning
Screen Cleaning
Screens cleaned for better airflow and clarity.
Christmas Light Installation
Christmas Light Installation
Custom design, full install, takedown & storage — all included.
Maintenance Plans
Never Worry About Dirty
Windows Again
Bi Annual
PER CLEANING
2 VISITS PER YEAR
- Free hard water removal
- 7 day weather warranty
Tri Annual
PER CLEANING
3 VISITS PER YEAR
- Free hard water removal
- 30 day weather warranty
- Free screen cleaning
Quarterly Protection Plan
PER CLEANING
4 VISITS PER YEAR
- Free hard water removal
- Unlimited weather warranty
- Free screen cleaning
- Free interior track detailing
1500+
Homes Cleaned in Durham
The Difference
Why Homeowners Choose Mastery
Trusted by homeowners across Durham Region for reliable, fully insured window cleaning with clear communication from quote to completion.
400+ 5 Star Reviews
Trusted by hundreds of local homeowners.
1500+ Homes Serviced
Experienced, proven, and ready for every type of home.
Fully Insured & WSIB Covered
Peace of mind before we step on your property.
Clear Communication
Simple updates, clear expectations, and no guessing.
Satisfaction Guarantee
Not happy? We come back and make it right.
Hands Off Service Plans
Stay on schedule year round without needing to rebook.
Professional, Uniformed Technicians
Friendly, respectful crews who show up ready to work.
Experience the Mastery difference
Get My Free QuoteReviews
See What Your Neighbours Are Saying
Trusted by homeowners across Durham Region
Proudly Serving
Service Areas
Window Cleaning Across Durham Region
Mastery Window Cleaning proudly serves homeowners throughout Durham Region, ON — delivering streak-free results with fully insured, professional technicians.
Window Cleaning in Pickering
Exterior & interior window cleaning in Pickering, ON.
Window Cleaning in Ajax
Professional window cleaning services in Ajax, ON.
Window Cleaning in Whitby
Streak-free window cleaning in Whitby, ON.
Window Cleaning in Brooklin
Trusted window cleaning in Brooklin, ON.
Window Cleaning in Oshawa
Fully insured window cleaning in Oshawa, ON.
Window Cleaning in Courtice
Top-rated window cleaning in Courtice, ON.
Durham Region's Trusted Choice
Schedule Your Next
Window Cleaning Today!
Experience streak-free windows year round from a trusted local team
Get My Free Quote