Deck & Interlock Sealing in Markham — FAQ

Markham blends heritage homes in Unionville with newer subdivisions full of freshly built decks and interlock. Seal Tech Inc. power washes, stains and seals decks, fences, interlock and stamped concrete across Markham and the rest of the GTA. Below are the questions homeowners here ask us most.

Questions Markham Homeowners Ask

Which Markham neighbourhoods do you serve?

All of Markham, including Unionville, Markham Village, Cornell, Cathedraltown, Greensborough, Wismer and the newer subdivisions east of the 404, plus the rest of the GTA. Whether it is a heritage home or a freshly built one, the same crew covers it.

Our home is in a new subdivision with a builder deck. When should it first be sealed?

As early as possible. New decks and fences have no protection until they are stained or sealed, and the first year of sun and rain does the most visible damage. Sealing early keeps the boards from greying and cupping before you have even enjoyed them.

We live in a heritage home in Unionville. Can you work on older wood and stone carefully?

Yes. Older homes often have wood porches and stone walkways that need a gentler touch, so we clean thoroughly rather than aggressively. We inspect the material first and choose a finish that protects without changing the character of the home.

Our driveway is long and three cars wide. Does size change the job?

It changes the time and the amount of product, but not the process. We clean, re-sand and seal the whole surface in one visit, and a large driveway is routine for us. The quote accounts for the full area, so you will know what is involved before we start.

Do you handle interlock walkways and patios, not just driveways?

Yes. Walkways, patios, steps and pool surrounds all get the same treatment as a driveway: power washing, weed removal, re-sanding the joints and sealing. We quote each area you want done, not just the front of the house.

Street parking is limited in our subdivision. How do you manage access?

We coordinate the timing with you so the driveway is only empty when it needs to be. We give you the exact days in advance, and on most Markham streets there is enough room to park nearby for that short window.

When should we book so everything is done before winter?

Late summer to early fall is the most popular window, because homeowners want the surfaces protected before the first snow and salt. Book a little ahead and we will fit you into a dry stretch. We will not seal in the rain or right before it.

Does winter salt affect the stamped concrete at our front entrance?

Yes. Stamped concrete is porous at the surface, and salt works into it over a winter, which can lead to pitting. Cleaning the salt off in spring and keeping the sealer current is the best way to protect that entrance.

Our Services

For the wood around your home, see our deck and fence staining service. For driveways, walkways and patios, see our interlock cleaning and sealing service.

Every quote is free and written. Use the quote form above to tell us about your surface — you can attach photos — and Ryan will call you back to ask the few questions that matter for pricing.