Durham Region · Ajax, Pickering, Whitby, Oshawa & more
Interior Window Cleaning
Clean exterior windows make a great first impression — but dirty interior glass affects how your home looks and feels from the inside every single day. Spotless results backed by 400+ five-star reviews and a 100% satisfaction guarantee.
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
Our Process
How We Clean Your Interior Windows
Interior window cleaning requires a different approach than exterior work — more care, more precision, and more respect for your home and everything in it. Our technicians are trained in professional mop and squeegee technique specifically suited for interior glass, delivering a flawless, streak-free finish on every pane without leaving a mess behind.
We treat your home the way we'd want ours treated. That means protecting your furniture and floors, working around your schedule, and leaving every room exactly as we found it — except with cleaner windows.
Every Visit
What's Included
Why Mastery
Why Durham Region Homeowners Trust Mastery for Interior Cleaning
400+ five-star reviews.
Hundreds of Durham Region homeowners have trusted us inside their homes — and they keep coming back.
100% satisfaction guarantee.
Not completely satisfied? We come back and make it right, no questions asked.
We protect your home.
We're careful around furniture, floors, blinds, and window treatments. You won't be cleaning up after us.
Pet and child safe.
We don't use harsh chemicals inside your home. Our interior cleaning process is safe for your whole family — kids, pets, and all.
We work around your schedule.
We offer flexible booking so professional window cleaning fits into your life, not the other way around.
Fully insured and professional.
Every technician is trained, uniformed, and fully insured. You know exactly who is entering your home and what to expect.
Streak-free guarantee.
Every interior pane is cleaned to a professional standard — clear, clean, and streak-free every time.
Local and reliable.
Durham Region based. We show up on time, communicate clearly, and get the job done right.
Better Together
Interior and Exterior — Better Together
Most homeowners book interior and exterior window cleaning together for the best overall result. When both sides of the glass are professionally cleaned at the same time, the difference is immediately noticeable — brighter rooms, cleaner views, and a home that just feels better. Ask us about combining both services when you book.
Learn About Exterior CleaningWho We Serve
Who We Serve
Residential Homes
Detached homes, bungalows, two-storey and three-storey homes, condos, and townhouses throughout Durham Region.
Commercial Properties
Office buildings, storefronts, and commercial spaces where clean interior glass makes a professional impression on clients and staff.
Post-Construction
New builds carry construction dust, paint overspray, adhesive residue, and hard water deposits on interior glass. We get your new property looking flawless before move-in or listing.
Coverage
Serving All of Durham Region
We provide interior window cleaning across Ajax, Pickering, Whitby, Brooklin, Oshawa, Courtice, and Bowmanville. If you're in Durham Region, we come to you — on time, respectful of your home, and ready to deliver results.
Reviews
See What Your Neighbours Are Saying
Trusted by homeowners across Durham Region
Durham Region's Trusted Choice
Schedule Your Next
Window Cleaning Today!
Experience streak-free windows year round from a trusted local team
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