What Window Cleaning Costs in Terrebonne in 2026
A residential window cleaning in Terrebonne costs $179 to $409 at Altara's published exterior rates, depending on how many windows the house has. Most two-storey homes in Lachenaie, La Plaine and Terrebonne-Ouest land in the 11 to 15 window tier at $329. Homes with more than 20 windows, or with glass the pole cannot reach safely, are quoted one by one.
Terrebonne prices by window count
| Typical Terrebonne home | Windows | Exterior flat rate |
|---|---|---|
| Condo, small unit or semi-basement apartment | 1 to 5 | $179 |
| Bungalow or split-level | 6 to 10 | $249 |
| Two-storey detached or semi-detached | 11 to 15 | $329 |
| Larger detached home with patio doors and basement windows | 16 to 20 | $409 |
| Estate, lakeside or heavily glazed home | 20+ | Custom quote |
The tier is picked online on the pricing page. There is no in-home estimate for a standard house, so the number you see is the number you pay for the exterior.
What the flat rate includes
The flat rate is an exterior service. A crew washes every outside pane, wipes the frames and sills, and rinses the screens where they sit. The glass is cleaned from the ground with a water-fed pole and pure deionized water. Since that water carries no dissolved minerals, it dries without the spots that tap water and squeegee soap tend to leave behind.
- In the flat rate: exterior glass, frames, sills, screens rinsed in place.
- Optional paid add-ons: interior glass, screen removal and washing, track cleaning.
- Priced on their own: skylights, solariums, heavy mineral stains, post-construction cleanup.
Add-ons are chosen at booking. If you only want the outside done before winter, the flat rate is the full price.
Why two Terrebonne homes with the same footprint can price differently
Counting the windows correctly
The window count drives the tier, so count carefully. Include basement windows, every patio door panel, sidelights beside the front door and the large fixed panes many newer Terrebonne builds have over the staircase. A common surprise: a house that looks like a 12-window home from the street often has 16 or 17 once the back and the basement are counted.
Height and how the house sits on the lot
The pole reaches up to three storeys from the ground. That covers nearly every bungalow, cottage and two-storey home in the city. Homes on a slope toward the Rivière des Mille Îles, houses with a walkout basement that adds a full level at the back, or glass above a deck or pool enclosure may need a site visit before a price is set.
What is on the glass
Pollen, road dust and rain marks are part of the flat rate. Newer streets still under construction are a different case. In areas where houses are still going up around you, windows can pick up concrete splash, stucco mist or paint overspray. That residue needs scrapers and more time, so it is quoted separately. The same goes for orange or white scale left by a sprinkler that hits the glass every night all summer.
How often you book
Recurring service changes the rate. Quarterly visits carry a 10% discount, bi-monthly 15% and monthly 20%. The annual and bi-annual programs come with automated reminders so you do not have to remember to book, but they carry no discount.
Comparing quotes in Terrebonne
Door-to-door crews and online ads quote in very different ways. Before you compare a number, check four things:
- Which side of the glass is included. An "inside and out" price and an exterior price are not the same service.
- Whether screens are rinsed or removed. Removing and washing screens takes longer and is usually priced as an extra.
- How the outside glass is cleaned. Ladder and squeegee work is common. Pure water on a pole keeps people on the ground and leaves no soap film.
- What happens if a streak shows up. Altara's guarantee: report a streak within 24 hours and the crew comes back to re-clean it for free.
Torn screens are a separate trade. The crew points out tears and bent frames so you can have them repaired, but screen repair is not part of the service.
Timing a window cleaning in Terrebonne
Exterior work runs from about March to November. Two windows of time are the busiest. The first is late April into May, once the winter salt spray from the 640 and the 25 has dried on the glass and the spring pollen has started. The second is October, after the leaves come down and before the first hard frost. Booking a few weeks ahead in those periods gives you more choice of dates. Interior glass can be done all year, including the colder months, so an inside clean before the holidays is still possible once exterior season ends.
For Vieux-Terrebonne homes near Île-des-Moulins, older wood or single-pane storm windows sometimes need gentler handling and more time per pane. If your house has original or heritage windows, mention it in the booking notes so the crew plans for it.
Frequently asked questions
How much does it cost to clean the windows of a house in Terrebonne?
At Altara's published exterior rates, a Terrebonne home costs $179 for 1 to 5 windows, $249 for 6 to 10, $329 for 11 to 15 and $409 for 16 to 20. Homes with more than 20 windows get a custom quote. Interior glass and screen washing are add-ons on top of that.
Is inside window cleaning included in the Terrebonne price?
No. The flat rate covers the outside: glass, frames, sills and screens rinsed in place. Interior glass, screen removal and washing, and track cleaning can be added when you book.
Do I need someone to come see the house before getting a price?
Not for a standard home up to three storeys. You count your windows and choose the tier online. A site visit is only needed for taller homes, very steep lots or glass that is hard to reach from the ground.
Is there a discount for regular window cleaning in Terrebonne?
Yes, for recurring visits only. Quarterly service is 10% off, bi-monthly 15% off and monthly 20% off. Annual and twice-a-year programs include reminders but no discount.
Get your Terrebonne price
Count your windows and choose your tier, read more about the residential window cleaning service and the Terrebonne service area, or send your questions through the contact form.