Residential Window Cleaning: Frequency, Methods, and What's Worth Paying For
Most Quebec homes do well with a professional window cleaning twice a year: exterior glass in spring (usually April or May) to remove winter road salt and grime, and again in fall (September or October) before the cold sets in. Homes near busy roads, construction, trees or pets, and multi-storey homes, are better served every 3 to 4 months. Once a year is the minimum.
Residential window cleaning is one of those tasks that homeowners approach with two extremes: DIY with a bottle of glass cleaner (which never quite works right on larger windows) or a once-yearly professional clean (which leaves most windows dirty for most of the year). Neither approach produces consistently clean windows.
Here is a practical guide to residential window cleaning for Greater Montréal homeowners who want windows that actually stay clean.
How Often Windows Actually Need Cleaning
Depends on context:
Every 3-4 months for:
- Urban homes in high-traffic environments (dust, pollution, tree sap)
- Homes with pets that push against windows
- Homes near construction or industrial activity
- Multi-storey windows that cannot be spot-cleaned easily
Twice per year (spring and fall) for:
- Typical suburban homes
- Homes with moderate tree coverage
- Homes with standard window exposure
Annually is the minimum for any home. Windows left longer than 12 months accumulate grime that is harder to remove and can bond to the glass surface in ways that need more than a routine clean.
Why Home Cleaning Doesn't Quite Work
Standard home window cleaning fails for a few reasons:
Tools. Paper towels and household glass cleaner work for small glass but streak on larger panels. Proper window cleaning uses a squeegee, not a cloth.
Technique. The professional method is wet the glass, squeegee in clean overlapping strokes, then detail the edges with a cloth. Haphazard wiping leaves streaks and misses.
Tracks and frames. Windows get dirty at the tracks and sills. Track dirt is what redeposits onto the clean glass over the next few weeks. Homeowners rarely clean tracks properly.
Water mineral content. Tap water leaves spots when windows are cleaned and left to dry. Professionals often use deionized water, which has had its minerals removed, to avoid spotting.
Methods Professionals Use
Traditional squeegee method. Bucket of cleaning solution, strip washer to wet and scrub, squeegee to remove water, cloth to detail edges. Standard for interior glass and accessible windows.
Water-fed pole. Deionized water pumped through a brush on a telescoping pole. Used for exteriors, including upper storeys, without ladders. Leaves no water spots because the water has no minerals to spot.
Ladder method for higher windows. When pole access is not feasible, safe ladder work with proper footing. This carries real risk for DIY.
Many residential jobs use a combination: a water-fed pole for the exterior and a squeegee for interior glass.
Track and Sill Cleaning
The step that makes a clean last:
- Loosen debris in tracks with a brush or vacuum attachment
- Wipe tracks with a damp cloth
- Address mineral deposits on aluminum tracks with an appropriate cleaner
- Clean the sill
- Address any mould or mildew in corners
Clean windows with dirty tracks can look streaky within a month as rain and condensation carry track debris onto the glass.
Screen Cleaning
Screens benefit from a proper clean regularly:
- Remove screens carefully
- Rinse with gentle water pressure
- Wipe with a soft brush or cloth
- Allow to dry before reinstalling
- Check for damage, since torn screens allow pests and debris indoors
Exterior Access Considerations
For two-storey homes, professional access makes a significant difference:
- Water-fed pole systems reach upper storeys safely from the ground
- Proper ladder work covers some residential situations
- Rope access is rarely needed for residential
DIY at height is a frequent cause of fall injuries in homeowner work. The savings rarely justify the risk.
How Pricing Usually Works
Window cleaning is usually priced by window count, home size or by the hour, and companies differ a lot in what the base price includes. Before comparing numbers, check whether interior glass, screens, tracks and hard-water treatment are part of the price or extra. Altara posts its flat rates by window-count tier on the pricing page so you can see the number before booking.
What to Evaluate in a Vendor
- "Method for upper-storey exteriors?" A water-fed pole is preferred for safety and spot prevention.
- "What exactly does the base price include?" Ask about interior glass, screens, tracks and sills.
- "What coverage do you carry?" Ladder and height work has real liability, so ask any company what its coverage is.
- "Weather policy?" Exterior work depends on the weather. Confirm how rescheduling works.
- "Guarantee?" If you spot a streak after the visit, will they come back and redo it?
The Altara Approach
Altara provides residential window cleaning across Greater Montréal: Laval, the Rive-Nord, the Island of Montréal and the Rive-Sud. The flat rate covers the exterior: exterior glass, frames and sills, cleaned with deionized pure water on a water-fed pole that reaches up to three storeys from the ground, with screens rinsed in place. Interior glass, screen removal and washing, and track cleaning are optional add-ons at extra cost. Skylights, solariums and heavy mineral staining are quoted separately.
Every window is spot-checked before the crew leaves. If you see a streak afterwards, contact Altara within 24 hours and the crew returns to re-clean at no charge.
Many homeowners book a spring and fall program, which comes with an automated reminder before each visit. For more frequent service, quarterly visits get 10% off, bi-monthly 15% and monthly 20%. Exterior work runs roughly March to November; interior work can be done year-round.
If your windows are on a once-a-year cycle and look poor for 10 of the 12 months, twice a year is the practical upgrade.
Frequently asked questions
How often should I get my home windows professionally cleaned in Quebec?
Twice a year is the usual answer: once in spring to remove salt film and winter grime, and once in fall before freezing weather arrives. Exterior cleaning with a water-fed pole runs roughly March to November in Greater Montréal, so plan the winter round for interior glass only. Busy roads, trees and pets are good reasons to move to a quarterly schedule.
How often should I get my house windows cleaned?
Twice a year, in spring and fall, suits most suburban homes. Homes in busy urban areas, near construction, or with pets pressing against the glass do better every 3 to 4 months. Once a year is the minimum, because grime left longer than 12 months can bond to the glass and become harder to remove.
Why do my windows look streaky a few weeks after I clean them?
Usually the tracks and sills were never cleaned. Rain and condensation carry that track dirt back onto the glass. Paper towels and household spray also streak on large panes, and tap water leaves mineral spots as it dries.
Is a water-fed pole as good as hand cleaning for upper floors?
For exterior glass, yes. The pole pushes deionized water through a brush, and because that water has no minerals it dries without spots. It also keeps the cleaner on the ground instead of on a ladder.
Are screens and tracks included in a professional window cleaning?
It varies by company, so confirm the scope before you book. With Altara, screens are rinsed in place during the exterior clean, while screen removal and washing, track cleaning and interior glass are optional add-ons at extra cost.
Ready to set up a schedule? See flat-rate pricing and pick your tier, or send us a request if your home needs a site visit.