How Much Does House Window Cleaning Cost in Montreal?
Exterior window cleaning for a house in Greater Montréal typically runs from about $179 for a very small home or condo (1 to 5 windows) to about $409 for a full home (16 to 20 windows), priced by window count. Bigger homes and hard-access jobs are quoted individually. These are Altara's published exterior rates, and the table below shows how each tier lines up.
Window cleaning prices in Montréal by window count
| Home size | Windows | Exterior flat rate |
|---|---|---|
| Small condo or pied-à-terre | 1 to 5 | $179 |
| Compact home | 6 to 10 | $249 |
| Standard home | 11 to 15 | $329 |
| Full home | 16 to 20 | $409 |
| Larger home or estate | 20+ | Custom quote |
Prices are for exterior cleaning of standard residential windows in Greater Montréal. You pick your window-count tier on the pricing page, so you see the number before anyone visits.
What the flat rate covers
The flat rate is for the outside of the house: every exterior pane, the frames and sills, with screens rinsed in place. The crew works from the ground with a water-fed pole and pure deionized water, so no detergent film is left on the glass and minerals do not dry into spots.
- Included: exterior glass, frames, sills, screens rinsed in place.
- Optional add-ons, priced extra: interior glass, screen removal and washing, window track cleaning.
- Quoted separately: skylights, solariums, heavy mineral or hard-water staining, post-construction cleanup.
When you compare quotes from different companies, check that the scope is the same. A low number that covers only one side of the glass is not cheaper than a flat rate for the exterior with add-ons priced clearly.
What moves the price of a window cleaning in Montréal
Number of windows
This is the biggest factor. Count every pane that opens to the outside, including basement windows, patio doors and large picture windows.
Height and access
A water-fed pole reaches up to three storeys from the ground, which covers most houses, duplexes and many triplexes. Taller buildings, atriums or awkward rooflines get a site visit before pricing.
Condition of the glass
Normal dust, pollen and rain marks are covered by the flat rate. Construction residue, paint overspray or heavy hard-water scale is a different job and is quoted separately.
How often you book
Recurring programs lower the per-visit cost. Quarterly service carries a 10% discount, bi-monthly 15% and monthly 20%. Annual and bi-annual programs get automated reminders but no discount.
When to book in Montréal
Exterior work runs roughly from March to November. Most homeowners book once in spring after the pollen and winter grime, and again in fall once the leaves are down. Interior add-ons can be booked year-round.
Frequently asked questions
How much does it cost to clean the windows of a house in Montreal?
For a standard home of 11 to 15 windows, Altara's exterior flat rate is $329. Smaller homes start at $179, a 16 to 20 window home is $409, and larger homes are quoted individually. Interior glass and screen work are add-ons priced on top.
Is interior window cleaning included?
No. The flat rate covers the exterior. Interior glass, screen removal and washing, and track cleaning are optional add-ons you choose when booking.
Do I need an in-home quote?
Not for a standard home. You count your windows, pick the tier online and book. Taller or hard-access homes get a site visit first so the price matches the job.
What if I find a streak after the visit?
Report it within 24 hours and the crew returns to re-clean it at no charge.
See your price
Pick your window-count tier and book, read the cost guide for more detail, or send questions through the contact form.