Residential Window Cleaning in Sainte-Thérèse
Altara cleans residential windows for homes across Greater Montréal — Laval, the North Shore (Rive-Nord), Île de Montréal, and the South Shore. Exterior glass, frames and sills by pure-water pole, with interior cleaning as an add-on. Streak-free guarantee, flat-rate pricing by window count, annual and bi-annual programs, online booking.
Get a Altara quote in Sainte-Thérèse
Tell us your home size or window count. Flat-rate quote in under an hour. Exterior flat rate, interior add-on available. Streak-free guaranteed. Serving Greater Montréal.
- Streak-free guarantee
- Pure-water exterior
- Interior add-on
- Flat-rate pricing
Sainte-Thérèse is an island-shaped town of older brick homes near the centre and newer suburban streets to the north. Rivière des Mille Îles humidity and pollen leave film on glass, and the dense downtown means shopfront windows collect traffic grime from Sainte-Thérèse Boulevard. Older homes often have traditional window styles that call for careful, gentle cleaning. Greater Montréal winters leave a film of road salt, calcium and slush spray on ground-floor glass, and maple and poplar pollen sticks to it in spring. Exterior window washing runs from about March to November; interior glass can be done year-round.
Eight Residential Window Services in Sainte-Thérèse
From annual whole-home cleans to pre-event polish to post-storm mineral-deposit removal, Altara delivers residential window cleaning across Greater Montréal that keeps the view clear, outside first, inside when you want it.
Standard Window Cleaning
Exterior glass, frames and sills by pure-water pole; interior, screens and tracks as add-ons.
Bi-Annual Program
Spring + fall bi-annual service with automated reminders.
Annual Spring Program
Single annual spring clean. Most common for low-pollen areas.
Pre-Event Window Polish
Same-day or next-day window cleaning before hosting major events.
Post-Storm Deposit Removal
Mineral and rain-spot removal after storms or pollen events.
Screen Washing (Add-On)
Screens removed, washed and reinstalled as an add-on. Tears flagged for you.
Track Cleaning (Add-On)
Window tracks vacuumed and wiped as an add-on to an interior clean.
Skylight Cleaning
Interior skylights standard, exterior case-by-case based on roof access.
Six Reasons Homeowners Pick Us
Streak-Free Guarantee
Every window streak-free or we return free. This is the whole reason to hire a professional instead of doing it yourself.
Exterior Flat Rate, Interior Add-On
The flat rate covers exterior glass, frames and sills, with screens rinsed in place. Interior glass, screen removal and washing, and tracks can be added to the same visit.
Flat-Rate Pricing by Window Count
Online quote based on window count. No in-home quote visits. Upfront pricing.
Annual & Bi-Annual Programs
Most homes book spring-and-fall bi-annual or spring-only annual. Automated reminders so you do not have to remember.
Pure-Water Systems for Exteriors
Deionized water on water-fed poles for exterior cleaning. No detergent residue, no streak-causing minerals.
Water-Fed Pole Reach
The pure-water pole reaches up to three storeys from the ground. Taller homes or awkward access get a site visit before pricing.
Five Steps. Every Visit.
Quote
Tell us your home size or window count. Flat-rate quote in under an hour.
Schedule
Pick a date online. Weather-safe reschedule within one week at no charge.
Exterior
Pure-water exterior cleaning via water-fed pole: glass, frames and sills. Screens rinsed in place.
Interior (add-on)
If you add it: interior squeegee with microfibre detail, screens removed and washed, tracks vacuumed and wiped.
Walk-Through
Streak check with you before we leave. Any streak? Re-wiped immediately.
Residential Window Cleaning in Sainte-Thérèse, QC
Our Sainte-Thérèse team delivers the same standard of service that Altara is known for across Canada. Whether you need a one-time project or a recurring program, our local team in Sainte-Thérèse is ready.
Altara Near Sainte-Thérèse
Altara Residential Window Cleaning in Sainte-Thérèse — Frequently Asked Questions
What is included in a standard window cleaning?
The flat rate covers exterior glass, frames and sills, cleaned with pure water on a water-fed pole, with screens rinsed in place. Interior glass, screen removal and washing, and track cleaning are optional add-ons quoted with your booking.
How often should residential windows be cleaned?
Most homes: twice a year (spring and fall). Some homes: annually (spring only). Homes near mature-tree pollen or river spray: 3 times a year. We track your schedule and send reminders.
What does streak-free guarantee mean?
Every window inspected before we leave. If you spot a streak after we leave, contact us within 24 hours — we return and re-clean at no charge.
What about mineral deposits or hard-water stains?
Light mineral spotting usually comes off during a normal pure-water clean. Heavy or long-untouched deposits need a specialty treatment, which is quoted separately.
Do you work in winter?
In Greater Montréal, exterior window cleaning is seasonal (typically March-November). Interior can be done year-round.
What about high windows or three-plus storey homes?
The water-fed pole reaches up to three storeys from the ground, so most homes are standard. Taller homes or difficult access (awkward rooflines, atriums) get a site visit before pricing.
Do you clean skylights?
Yes, from inside if accessible. Exterior skylight access depends on roof pitch and safety — we evaluate case-by-case. Typically included in the service unless flagged as specialty.
Do you serve Laval and the North Shore?
Yes — Laval and the Rive-Nord (Terrebonne, Mascouche, Repentigny, Blainville, Boisbriand, Sainte-Thérèse, Mirabel, Saint-Eustache and surrounding) are core service areas. Same flat-rate quote, same streak-free guarantee, same crews.
Windows Need a Refresh? Get a Flat-Rate Quote.
Tell us your home size or window count. Flat-rate quote in under an hour. Exterior flat rate, interior add-on available. Streak-free guaranteed. Serving Greater Montréal.