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August 9, 2026 · Altara Operations · Sainte-Dorothée

Streak-Free Windows in Sainte-Dorothée: The Ultimate Guide

Living in Sainte-Dorothée means enjoying one of the greener corners of Laval, but it comes with its own set of chores. Keeping windows clean and streak-free is one of them. If you've ever cleaned your windows yourself only to end up with more streaks than when you started, you're not alone. That's where Altara Residential Window Cleaning steps in.

Why Do Windows Get Streaky?

The most common reasons are tap water and rushed technique. Tap water carries minerals that stay behind as residue when it dries, and that residue is what you see as streaks and spots. Even with a squeegee, the wrong tools or a hurried pass can still leave marks.

How Does Altara Prevent Streaky Windows?

On the exterior we use a pure-water system: deionized water fed through water-fed poles. With no detergent and no minerals in the water, there's nothing left on the glass to streak as it dries. When interior glass is added, it's done with a squeegee and microfibre detailing so every pane is finished by hand.

What Does Altara's Flat Rate Cover?

The flat rate covers the exterior: 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 window track cleaning are optional add-ons at extra cost, so you only pay for what your home needs.

Interior Cleaning

If you add interior glass, the crew works each pane with a squeegee and microfibre cloths, then details the edges and corners where marks usually hide. Interior work can be booked any time of year.

Exterior Cleaning

The exterior is where the pure-water system really shines. Deionized water on water-fed poles cleans the glass without leaving residue, and the poles reach up to three storeys from the ground. That suits the two-storey homes common in Sainte-Dorothée, with no ladders leaning on siding. Exterior work runs roughly from March to November.

How Does Altara's Pricing Work?

Pricing is flat-rate, based on how many windows your home has. You pick your window-count tier on the pricing page and book online, with no in-home visit. Only homes taller than three storeys or with difficult access get a site visit before pricing. Skylights, solariums and heavy hard-water stain removal are quoted separately.

Annual vs Bi-annual Programs

You can choose an annual (spring only) or bi-annual (spring and fall) program, and both come with an automated reminder before your next visit. Spring only is a good fit if pollen is your main concern; spring and fall keeps glass clear through more of the year. These programs don't carry a discount. Discounts apply only to quarterly (10%), bi-monthly (15%) and monthly (20%) service.

How Does Altara Compare to Other Services?

Plenty of services use tap water and a bit of soap on the exterior, which is exactly what leaves spots behind a few days later. Altara uses pure water on every exterior clean, prices by window count so you know the number up front, and spot-checks every window before the crew leaves. If you see a streak, contact us within 24 hours and the crew returns to re-clean it at no charge.

What Should You Look For When Choosing a Window Cleaning Service?

Ask exactly what the price covers and what's an add-on. Ask whether they use pure water on exterior glass, how they reach upper windows, and what happens if you find a streak after they leave. A clear answer to each of those questions tells you a lot about the result you'll get.

How Do You Schedule a Service?

Scheduling is simple. Pick your tier online, add any interior options you want, and choose a date. No in-home visit, which saves you time and hassle.

Frequently asked questions

Why do streaks only show up when the sun hits my windows?

A thin film of cleaner residue or dried tap-water minerals is hard to see in flat light, but direct or low sun makes it stand out. That is why a pane can look clean at noon and streaky in the late afternoon. Checking each window from more than one angle before calling it done catches most of it.

Can I get streak-free windows with a squeegee at home?

It's possible with a good squeegee, proper technique and a clean microfibre cloth for the edges, ideally working in the shade. The catch is tap water: its minerals leave residue if it dries on the glass. Professionals use deionized water on the exterior to avoid that problem entirely.

Can dirty screens and tracks cause streaks on clean glass?

Yes. Dust in the tracks and screens gets pulled onto the glass every time a window opens, so smudges come back quickly. Screens are rinsed in place on every exterior visit, and screen removal and washing and track cleaning can be added at extra cost if yours need more attention.

Are second-storey windows in Sainte-Dorothée harder to get streak-free?

They are for homeowners, because it's difficult to work a squeegee carefully from a ladder. Water-fed poles with pure water reach upper panes from the ground and dry without residue, which is why the method suits the two-storey homes common in Sainte-Dorothée.

Want streak-free windows without the ladder? Pick your window-count tier and book online, or contact us with any questions.

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