Interlock Cleaning & Sealing in Scarborough and Toronto

Interlock driveways, walkways and patios are a big investment, and Toronto's freeze-thaw cycles, sun and daily traffic wear them down fast. Seal Tech Inc provides interlock sealing Toronto homeowners rely on to protect that investment: we clean the surface, re-sand the joints and seal the stone so it stays protected and easier to maintain. Based in Scarborough, we serve Toronto, North York, Markham, Vaughan and the rest of the Greater Toronto Area. Owner Ryan Leonard is on site for every job, and we've been doing this work for more than 15 years.

A sealer can only do its job if the stone underneath is clean. Dirt, algae and worn joint sand sit on and between the pavers, and coating over them traps the problem instead of fixing it. That's why every job starts with a proper clean, and why we treat the pavers, the joints and the finish as one system rather than a quick top coat. Browse our gallery to see the difference a proper clean and seal makes on real driveways and patios.

Interlock and Paver Cleaning

Cleaning comes first, and it's where a tired surface gets its colour back. We use a high-pressure wash combined with chemical cleaning and hand scrubbing where stains need it, which lifts the grey film of dirt, moss and algae that builds up over the years. We clear weeds and vegetation from the joints, remove efflorescence — the whitish powder that can appear on stone and concrete — and flush the surface so the joints are ready for fresh sand. If you've been searching for interlock cleaning in Toronto or interlock cleaning in Scarborough, this step is what makes the biggest visible difference before any sealer goes down.

Re-Sanding the Joints

Once the surface is clean, we re-sand the joints with polymeric joint sand. It hardens like a flexible mortar after it sets, which locks the pavers together and makes it harder for weeds, ants and water to work their way between them. Joint sand is what actually holds an interlock driveway or patio together, so replacing the sand that years of rain and traffic have washed away matters as much as the sealer. If you've noticed gaps opening between pavers or sand collecting on the sidewalk after a rain, the joints need attention. This is what people mean by interlock sanding and sealing — the two steps are meant to go together.

Interlock Sealing Toronto: Driveways, Walkways and Patios

With the stone clean and the joints full, we apply an overlapping coat of sealer in the finish you choose: "natural", "wet look semi-gloss" or "wet look high-gloss". A natural finish leaves the stone looking the way it does after cleaning, while a wet look finish adds the shine of stone after rain. The sealer protects the pavers from staining, fading and the freeze-thaw damage that cracks stone, and it makes everyday cleaning far easier. We seal interlock driveways, walkways and patios, and the same care applies to retaining walls. Interlock sealing Toronto driveways and patios is routine work for our crew, and we're happy to explain the finish options before you decide. For driveway sealing in particular, the sealer stops oil and road grime from sinking into the stone. If your surface is natural stone instead of interlock, see our natural stone cleaning and sealing page.

Weeds, Oil Stains, Efflorescence and Faded Colour

These are the four problems homeowners mention most. Weeds sprout in the joints when the old sand breaks down, so we remove them and re-sand so they're slower to return. Oil stains from cars and barbecues are lifted during cleaning, and sealing adds a barrier that stops new spills from soaking in. Efflorescence, the whitish powder on stone and concrete, is cleaned away before any sealer goes down. Faded colour is usually the first sign a surface is ready for a refresh — a wet look sealer brings the colour back and keeps it from washing out again.

How Often Should You Reseal?

How often a surface needs resealing depends on how much sun and traffic it gets and which finish you chose, so we don't quote a one-size-fits-all number. During your free quote we'll look at your driveway, walkway or patio and recommend a schedule that fits your home. The signs are easy to spot: the colour looks washed out, water no longer beads on the surface, the joints are losing sand, or weeds keep returning between the pavers. When you notice those, book a reseal before the stone starts to deteriorate. For interlock sealing Toronto homeowners can plan around, we make the timing clear up front in writing.

What the Visit Involves

Every job follows the same careful sequence, and Ryan is on site to make sure it's done right:

• A high-pressure chemical wash, combined with scrubbing where needed, to remove stains and built-up grime
• Removal of efflorescence and any existing weeds and vegetation
• Re-sanding of the joints with polymeric sand that hardens like a flexible mortar
• Application of an overlapping coat of sealer in the finish you chose

We'll confirm the timing for your surface in your free written quote and tell you when the area is safe to walk on and park on again.

Frequently Asked Questions

How long does interlock sealing take?

It depends on the size and condition of the surface and how much cleaning it needs. We'll confirm the schedule in your free written quote before any work starts, so there are no surprises on the day.

How long after sealing can I walk or drive on it?

Curing time depends on temperature and humidity, and we only seal in dry conditions. Before we leave, we'll tell you exactly when you can walk on the area and when it's safe to park a vehicle on it.

How long does the sealer last?

There's no single answer, because sun exposure, traffic and the finish you choose all play a part. During your quote we'll assess the surface and recommend a resealing schedule that makes sense for your driveway or patio.

Do I need to do anything to prepare?

Very little. Move vehicles, planters and patio furniture off the area so we can work, and leave the rest to us — cleaning, weed removal and re-sanding are all part of the job.

Can you seal in any weather?

No. Sealing needs dry weather to cure properly, so we plan around the forecast. If rain is expected, we'll reschedule to the next suitable day rather than rush the job.

What happens during the visit?

We clean the surface, remove weeds and efflorescence, re-sand the joints and apply the sealer in the finish you chose. Ryan is on site for the job and will walk you through the work before we leave.