Deck & Fence Staining and Sealing in Toronto

Deck staining Toronto homeowners can rely on starts with clean, dry wood and the right product — not with a quick coat over dirt and grey. Seal Tech Inc has been staining and sealing decks, fences and pergolas across Scarborough, Toronto, North York, Markham, Vaughan and the rest of the GTA for more than 15 years, and Ryan Leonard is on site for every job.

We provide free written quotes and we guarantee our work. If you are not sure what your wood needs, send a few photos with the quote form and Ryan will call you back with honest advice.

Deck Staining Toronto Homeowners Can Count On

Wood stain is made to soak into the wood fibres and lock out moisture. For it to work, the surface has to be clean, sound and dry first. Dirt, mould and greyed fibres left on the boards get sealed in, which changes the look and leads to early failure. That is why every deck staining Toronto job begins with cleaning and prep, not with a brush.

You can choose a clear sealer that keeps the natural colour, a semi-transparent stain that lets the grain show through with some colour, or a semi-solid or solid stain that gives the most UV protection and the closest look to paint. Colour always shifts a little once applied, because it depends on the species, age and condition of the wood.

Deck Sealing

Sealing adds a water-repellent barrier that helps the wood shed rain and dew instead of soaking it up. Wet boards swell, cup and eventually rot; a sealer slows that cycle and makes routine cleaning easier. Sealing is especially useful on decks that sit in full sun or under trees, where moisture and UV do the most damage.

Deck Cleaning and Power Washing

Cleaning is the step that makes staining and sealing last. We use a pressure washing system with environmentally sensitive cleaning products to remove dirt, algae, mould and old failing finish. The result is clean, sound wood that a stain or sealer can actually bond to, instead of a coating that peels within a season.

Deck Refinishing and Restoration

Grey or peeling decks are usually not beyond saving. The grey layer is weathered wood fibre and embedded dirt, not the wood's true colour. We clean the surface, sand away loose fibres, inspect the fasteners and structure, and reapply the stain or sealer you choose. Most worn-looking decks just need proper cleaning and a fresh protective coat.

If the walkway or patio beside the deck has the same problem, we also clean, re-sand and seal interlock driveways and patios.

Fence Staining and Sealing

Fences take less foot traffic than decks, but they face more weather. Staining evens out the colour of new or faded boards and stops water from working into the joints. Because fences are vertical, a good stain or sealer can protect them for up to 10 years in the right conditions.

Fence Cleaning

Fences collect dirt, algae and mould along the bottom and on shaded sides. We power wash the boards before any stain goes on, so the finish does not trap contamination. Clean, dry wood is what makes a fence stain look even and stay put.

Pergolas and Other Outdoor Wood

Pergolas, gazebos and sheds get the same treatment as decks and fences. We clean and stain or seal the wood, and we can paint it where paint is preferred. Keeping these structures sealed protects the joints and keeps the whole yard looking finished.

How a Deck or Fence Job Runs

Every job follows the same careful order: inspect, clean, dry, apply, walk through.

• Inspect the deck or fence, including the fasteners, and re-secure anything loose
• Clean the surface with a pressure washing system and environmentally sensitive products
• Let the wood dry completely before any finish is applied
• Sand surfaces to remove loose wood fibres
• Apply the chosen stain or sealer, then walk through the finished work with you

Why Toronto Weather Wears Wood Out

Toronto weather is hard on outdoor wood. Water soaks into the grain during spring rain, then freezes and expands through winter freeze-thaw cycles, which opens cracks and loosens boards. Summer UV greys the surface and breaks down the wood's natural protection. That is the same weather that deck staining Toronto homes have to plan for, and it is why sealing matters as much as colour.

See how a proper clean and seal transforms the wood in our deck and fence project gallery.

Guides and Answers

• Oil vs Water-Based Deck Stain for Toronto Decks
• How Long Does Deck Staining Last?
• How Long to Wait Before Staining a New Deck
• Why Deck Stain Peels and How to Fix It
• Sealing vs Staining a Deck: What's the Difference?
• How to Fix a Sun-Damaged Deck
• Can You Stain or Seal Composite Decking?
• How to Choose a Deck Stain Colour
• Solid vs Semi-Transparent Stain
• Why Deck Stain Goes Blotchy (Uneven Absorption)
• How to Remove Old Deck Stain
• Staining a Cedar Deck or Fence
• What Affects the Cost of Deck Sealing in Ontario?
• DIY vs Professional Deck Sealing
• Fall Deck Prep Before a Toronto Winter
• How to Fix a Slippery Pool Deck
• Deck Staining and Refinishing in York Mills

Frequently Asked Questions

How long does deck and fence staining last?

It depends on sun exposure, foot traffic, surrounding trees and the finish you choose. Horizontal surfaces like deck boards generally last 1 to 5 years, while vertical surfaces like fences can last up to 10 years. Ryan will tell you what to expect for your specific site.

How long will the work take, and when can we use the deck again?

Timing depends on the size and condition of the wood and on the weather. Cleaning, drying and application are spaced out so the wood can dry properly, and we only apply when the forecast is dry. We confirm the schedule in your written quote and tell you when it is safe to walk on the deck and put furniture back.

Do we need to do anything to prepare?

Please clear the deck, or the area around the fence, of furniture, planters, barbecues and toys before we arrive. We handle the cleaning, sanding and any fastener repairs, and we let you know when the surface is ready to be used again.

What happens if it rains on the day of the job?

We watch the forecast and will not apply stain or sealer to wet wood or ahead of rain. If the weather turns, we reschedule rather than risk a finish that does not cure properly.

What does the visit involve?

Ryan Leonard walks the site with you, inspects the wood and fasteners, and answers your questions. You receive a free written quote before any work starts, and on the day of the job we clean, dry, apply and then walk through the finished work with you.

How do we get a free quote?

Call (416) 966-4200 or send the quote form with a few photos of your deck or fence. Ryan calls you back and asks the few questions that matter for pricing, then you get a written quote.

The fastest way to know what your deck or fence needs is a look at it in person. Call (416) 966-4200 or request your free written quote and send a few photos. Ryan will call you back, ask the questions that matter for pricing, and give you a written quote.