Pure Water Window Cleaning in L'Assomption: What It Is and Why It Matters

Picture a homeowner in L'Assomption who hires a window cleaner with a bucket, some blue liquid, and a rag. Two days later, streaks run down the glass like tears. The crew comes back, does the same thing, and leaves the same mess. That’s the moment many people realize they don’t really know what pure water cleaning is. They assume it’s a marketing term. It’s not. It’s chemistry.

How pure water cleaning actually works

Exterior glass doesn’t need soap. It needs water that’s had its dissolved minerals stripped out. That’s what deionized water is. Pumped through a carbon-fibre pole and brushed onto the glass, it loosens dirt, dust, pollen, anything stuck to the surface, and carries it away in the rinse. No residue. No streaks. No film. Just clean glass that stays clean longer because there’s nothing left behind to attract grime.

It works on homes in the old heritage core of L'Assomption, where brick facades and multi-pane windows collect pollen and dust after the spring melt, and on newer builds in the suburbs, where construction dust lingers on frames and sills. The system doesn’t care about the age of the house. It pulls contaminants off the glass and leaves nothing behind. The pole reaches up to three storeys from the ground, so the crew works safely from the lawn.

What the flat rate covers

Altara’s flat rate covers the exterior: exterior glass, frames and sills, all cleaned with pure water, with screens rinsed in place during the same pass. That’s the part of the job where pure water makes the biggest difference.

Screens and tracks can get more attention if you want it. Picture a home in L'Assomption whose screens haven’t been properly washed in three years. They’re caked with maple seeds, spider webs, and grit from a gravel road nearby. With the screen add-on, they’re removed, washed, and reinstalled, and the difference in airflow and light is immediate.

Tracks are another quiet problem. Dust, dead bugs and pet hair build up, and if nobody cleans them, the window won’t sit right. It sticks. It leaks air. Over time, the rollers wear out. Track cleaning is available as an add-on too. Both are priced on top of the flat rate and only added when you ask.

What about the interior?

Inside, pure water poles aren’t the right tool. Interior glass, when you add it, is done with a residential-safe glass cleaner and a squeegee, followed by a microfibre detail pass. No ammonia. No harsh fumes. Just clear glass.

Plenty of L'Assomption homes have fingerprints at kid-nose height, or a hazy film from years of cooking steam. One pass with the squeegee, a second with the microfibre, and it’s gone. Interior glass is an optional add-on at extra cost, and unlike the exterior, it can be booked year-round.

Is spring and fall worth it?

Many homeowners in L'Assomption go for spring and fall. Spring clears the winter grime, salt residue, and pollen. Fall removes summer dust and bug residue before the snow. It’s not about vanity. It’s maintenance. Glass that’s cleaned regularly is easier to keep clear, and you spot cracks or failing putty early.

Some homeowners only do spring, since fall feels like one more chore with the leaves and the garden. That’s fine. But if you live near the Rivière L'Assomption or on a wooded lot, fall cleaning makes a real difference, because wet leaves can leave tannin stains on glass if they sit too long. Spring-and-fall and annual programs come with an automated reminder before each visit; they don’t carry a discount. Quarterly (10% off), bi-monthly (15%) and monthly (20%) plans do.

What about hard-to-reach windows?

If you live in a home taller than three storeys in L'Assomption, or your windows sit over a steep slope or a tight courtyard, the pole may not be the right approach. That’s not a failure; it’s a safety line. For those homes, Altara does a site visit before pricing so you know exactly what’s possible.

How do you know it’s really pure water?

Ask to see the TDS meter. Total Dissolved Solids. Properly deionized water reads at or very near zero. Tap water reads well above that. A crew that can’t show you a reading before it starts may not be using pure water at all.

Some companies claim pure water and then show up with a bucket and a garden hose. No pole. No filtration. Just a story. The TDS meter doesn’t lie.

What does it cost?

You won’t find a single number here, because every home in L'Assomption is different. A bungalow with 12 windows isn’t the same as a two-storey with 22. Altara prices by window count: you pick the tier that matches your home on the pricing page and book online. No salesperson at your door. No pressure.

A sunroom or skylight is quoted separately, as are heavy hard-water stains. If someone’s quoting a rock-bottom price for everything, they’re probably cutting corners. If they’re charging far more for the same job, ask what extra you’re getting.

What a proper visit looks like in L'Assomption

Take a 1940s cottage with original wood windows. The crew checks the weather, sets up the pure water system, and works through the exterior glass, frames and sills, rinsing the screens in place. If you’ve added interior glass or screen washing, that gets done in the same visit. Before leaving, every window is spot-checked.

The flat-rate model is underrated. No haggling. No surprise fees. You know what you’re paying before anyone starts. And if you spot a streak afterwards, contact Altara within 24 hours and the crew returns to re-clean it at no charge.

What makes the experience smooth?

Booking online is the easy part. If your home has something unusual, like arched windows, a skylight or a solarium, add a note or contact us before your visit so it’s accounted for. After that, scheduling is simple, reminders arrive automatically before your next visit if you’re on a program, and a rainy day just means the visit moves.

Frequently asked questions

Does pure water window cleaning use any soap?

Not on the exterior. Pure water cleaning uses deionized water pumped through a carbon-fibre pole and brush, which loosens dirt and pollen and then rinses away without leaving residue, so the glass dries streak-free. Interior glass, when added, is done separately with a residential-safe cleaner, a squeegee and a microfibre pass.

How can I tell if a window cleaner in L'Assomption is really using pure water?

Ask to see their TDS (total dissolved solids) meter before the work starts. Properly filtered water reads at or near zero, while ordinary tap water reads well above it. A crew that shows up with only a bucket and a hose, and no pole or filtration, is not doing pure water cleaning.

Are screens and tracks included with Altara’s pure water service?

Screens are rinsed in place as part of every exterior visit. Full screen removal and washing, and track cleaning, are optional add-ons at extra cost, along with interior glass.

How often should homes in L'Assomption have their windows cleaned?

Many homeowners book spring and fall: spring removes winter salt, grime and pollen, and fall clears summer dust and bug residue before snow arrives. Fall matters most if you live near the river or on a wooded lot, because wet leaf tannins can stain glass.

Ready for a clear price for your L'Assomption home, with no visit and no pressure? Pick your window-count tier and book online.