Quick answer
Exterior cleaning tackles the weather-facing side of your glass — hard-water spots, pollen, road film — usually with pure-water poles from the ground. Interior cleaning is more detailed hands-on work inside: glass, sills and tracks, with floors protected and shoe covers on. Exterior gets dirty faster (twice a year); interior often only needs once a year. Most “full” cleans include both.
Exterior window cleaning
The outside of your glass takes everything Calgary throws at it: hard-water spotting, sprinkler overspray, road dust, pollen, sap and winter salt. Our exterior service uses a pure-water system to lift that grime and rinse spot-free, including frames and sills, with high windows reached safely from the ground. Because it faces the elements, exterior glass needs cleaning about twice a year.
Interior window cleaning
Inside glass gets a different kind of dirty — fingerprints, dust, pet nose-prints, cooking film and condensation marks. Our interior service is meticulous and respectful of your home: we protect floors and furnishings, wear shoe covers, clean the glass streak-free, and detail the sills and tracks where dust and dead bugs collect. It’s more hands-on, which is why it takes longer.
Why interior costs more
Exterior cleaning is efficient — often done from the ground, moving quickly pane to pane. Interior work means moving around your home, protecting surfaces, careful drying, and detailing tracks by hand. That extra time and care is why an interior-plus-exterior clean costs more than exterior alone. See typical pricing in our Calgary cost guide.
Do you need both?
For a true “clean window,” yes — a spotless outside with a smudgy inside still looks dirty from your couch. Many homeowners do both inside and out in spring, then a quick exterior-only in fall. If budget is tight, prioritize exterior (it gets dirtier faster), then add interior when you want the whole window clear.
The all-in option
Want every pane clear, inside and out, plus screens and tracks? Tell us your home and we’ll quote the full package. Get your free quote.
Frequently asked questions
What’s the difference between interior and exterior window cleaning?
Exterior cleans the weather-facing side (hard-water spots, pollen, road film), usually with pure-water poles. Interior is detailed hands-on work inside — glass, sills and tracks — with floors protected.
Why does interior window cleaning cost more?
Interior is more time-consuming and careful: moving around your home, protecting surfaces, drying by hand and detailing tracks. Exterior is faster and often done from the ground.
Do I need both interior and exterior cleaning?
For a fully clear window, yes. Many homeowners do both in spring and exterior-only in fall. If budgeting, prioritize exterior since it gets dirty faster.
