Polymeric Sanding
Lock your pavers in. Keep the weeds out.
Polymeric Sanding done properly.
After we pressure wash an interlock driveway, walkway or patio, the joints between your pavers are clean — and empty. Polymeric sand is the finishing step that refills those joints with a premium polymer-bound sand that hardens into a firm, flexible bond. It stops weeds from sprouting, keeps ants from tunnelling, and locks every stone in place so your pavers stop shifting underfoot.
Every job is quoted up front based on the size and access of your property — no per-hour creep, no surprise add-ons. Reach out below or call us for a same-day estimate.
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Everything to know about polymeric sanding.
Polymeric sand is what separates a paver job that looks great for one season from one that looks great for a decade. It's a blend of fine sand and polymer binders that, once activated with water, cures into a firm but flexible joint filler. Unlike mortar, it flexes with our brutal Toronto freeze-thaw cycles instead of cracking, and unlike plain sand, it stays put through heavy rain and snow melt.
Timing matters. The pavers and joints must be completely dry before the sand goes in — even a trace of moisture causes the polymer to set prematurely on the surface, leaving a haze on the stones that's a nightmare to remove. We almost always schedule the wash and the sanding on separate days so the surface has a full sunny day to dry out before we sweep.
Installation is methodical. Sand is poured onto the surface and swept diagonally into every joint, then we use a plate compactor (with a protective pad) to vibrate it deep into the joint. We sweep more in, compact again, and repeat until the joints are full to within a few millimeters of the paver top. Then comes the water — applied as a fine mist in stages, never a flood, so the polymer activates evenly through the full depth of the joint. The result is a finished surface that looks brand new and behaves like a single connected unit.
What's included
- Full pressure wash of the paver surface first
- Joints flushed clean of old, depleted sand
- Surface allowed to fully dry before sanding
- Premium polymeric sand swept into every joint
- Mechanical compaction to settle sand deep into the joints
- Top-up sweep to fill any remaining voids
- Fine-mist water activation to set the polymer
- Full clean-up — no sand left on the paver faces
How it works
- STEP 1
Wash & dry
We pressure wash the pavers, flush out the old joint sand, and let the surface dry completely — wet joints ruin the bond.
- STEP 2
Sweep & compact
Premium polymeric sand is swept in, then compacted so it settles to the full joint depth. We top up and repeat until every joint is full.
- STEP 3
Activate
A fine mist activates the polymer in stages. Done right, it cures into a firm, flexible bond that flexes with freeze-thaw cycles.
Why customers book it
- Blocks weed growth between pavers
- Prevents ants and insects from nesting in joints
- Stops pavers from shifting and rocking
- Flexes with freeze-thaw — won't crack like mortar
- Restores a crisp, finished look to your interlock
- Extends the life of the entire paver installation
The Your Window Cleaner difference
Local, family-run
Based in Vaughan, working across the entire GTA. You'll meet the owner on most jobs.
Fully insured & WSIB
$5M liability and WSIB coverage. Our crews are trained on ladders, harnesses and working at heights.
Same crew, every visit
Recurring clients see the same friendly faces — no rotating subcontractors.
Eco-friendly products
Biodegradable, organic soaps that are safe for kids, pets and your garden — never harsh chemistry.
5.0 on Google
Hundreds of verified neighbours across Toronto, Vaughan and the GTA.
Flat-rate quoting
Price agreed up front — no per-hour creep, no surprise add-ons.
One-and-done visits
We arrive with the full crew and kit so most jobs wrap on the first visit — no return trips.
Satisfaction guaranteed
If a window isn't right, we come back and re-do it free.
Polymeric Sanding across the GTA
We offer polymeric sanding in every city across the Greater Toronto Area. Click your city to see the full local service page.
Frequently asked questions
Do I really need polymeric sand after a pressure wash?
Yes. Pressure washing pavers flushes out the old joint sand. Leaving the joints empty means weeds, ants and shifting stones within a season. Polymeric sand is what locks everything back in.
How long does polymeric sand last?
Properly installed polymeric sand lasts 5–10+ years in GTA conditions. It will slowly wear down over time and can be topped up without re-doing the whole surface.
Can you do polymeric sanding without pressure washing first?
We can, but we don't recommend it. The new sand bonds best to clean, debris-free joints. If you've washed recently we can pick up from there.
What if it rains right after?
We watch the forecast carefully and only schedule the activation step when we have a clear weather window. If unexpected rain comes through before the polymer sets, we'll come back and re-do affected sections free.
Will the sand stain my pavers?
No — we use premium polymeric sand and clean every grain off the paver faces before activating with water. Done correctly, the finish is clean and the sand stays in the joints where it belongs.
Request a free quote
We'll get back to you the same day — usually within a few hours.