Custom decks in Markham with privacy-focused design, permit help, and durable construction for winter weather.
HomeStars Best
Winner '21-'24
5/5 Rating
276+ Reviews
5-Year Warranty
Guaranteed
Licensed
WSIB & Insured
#1
Experienced deck builders for privacy-focused backyards in Markham
You should know exactly what is included before work starts, who is guiding the project while it is being built, and that added work cannot appear without your sign-off. When the job is done, written workmanship coverage should still protect you if installation issues show up later.
Experience the GTA Grizzly standard. Our team combines architectural precision with elite craftsmanship to build outdoor spaces that last a lifetime.
Speed and transparency. Receive an itemized breakdown for projects under $30K by tomorrow.
We don't just build; we guarantee. Our workmanship is backed for half a decade of Toronto winters.
GTA Grizzly LTD delivers complete landscaping services across Toronto and the GTA — licensed, insured, and reviewed by real homeowners on HomeStars. From concept to completion, our trusted crews handle every phase of your project.
See your project in photorealistic 3D before we break ground. Our design process covers site analysis, concept development, and construction-ready drawings.
Natural stone patios, permeable interlock driveways, and retaining walls engineered to survive Toronto’s freeze-thaw cycles.
Composite, cedar, and pressure-treated builds. Elevated decks with railing systems to full privacy fencing — built to Ontario code.
Complete backyard transformations from demolition to final planting. Drainage, grading, irrigation, lighting — managed start to finish.
Precision-engineered railing systems for decks, balconies, and staircases. Installed to Ontario building code.
Year-round property care for commercial properties across the GTA. Lawn maintenance, seasonal cleanup, and snow removal.
We visit your property, measure the lot, talk through privacy goals, and confirm what the deck needs to do for your home.
You get a clear scope, material options, and a written price matched to the approved plan so decisions feel informed, not rushed.
Our trusted crew completes the work while a dedicated project manager keeps communication moving with weekly photo updates.
We review the finished deck with you, fine-tune the last details, and your written workmanship coverage begins at final sign-off.
Locked-Price Proposals
Your proposal itemizes time and materials before work starts, so the price you see is the price you pay.
24-Hour Quote Guarantee
Detailed proposal within 24 hours for projects under $30K, so you can compare your options while the plan is still fresh.
Free 3D Design
On projects over $30K, you receive a 3D design and render so you can see the layout before construction begins.
5-Year Written Warranty
If something shifts, cracks, or settles due to our installation, we return and fix it at zero cost once final sign-off activates your written workmanship warranty.
Free Consultation & Estimate
Every project starts with a no-obligation consultation and estimate, giving you expert guidance before you commit to the build.
No Surprise Bills
No materials or charges are added without written approval, so scope changes never sneak onto the invoice later.
On-Site Precision
Our crew stays until every detail meets our standard, from board spacing and fascia lines to railing fit and final cleanup.
Proven, Licensed, And Reviewed
HomeStars Best Winner 2021, 2022, 2023, 2024 with a 5 out of 5 rating, 136+ verified reviews, and full Licensed, Insured, WSIB compliant coverage.
Discover what a finished deck should feel like: private, solid underfoot, and clean from every angle. The details matter because tall screens, stairs, railings, and framing all have to work together, and that is where experienced planning saves you from a bulky look or a costly redo later.
Rated 5.0 across 140 Google reviews, GTA Grizzly serves homeowners and businesses throughout Toronto, Vaughan, Markham, and the surrounding GTA — with trusted crews delivering every project from design through completion.
A 20×20 deck in Markham usually falls into a broad mid-to-upper range, but the real price depends on material, height, railings, stairs, and whether the site needs grading or footings. For a clear number, GTA Grizzly gives free estimates and locked-price proposals, so the price you approve is the price you pay. If your build is over $50K, we can also include a free 3D design so you can see the layout before work starts.
The 3-4-5 rule is a quick way to check for a true right angle during layout, since sides in that ratio create a perfect 90-degree corner. It’s useful for framing, but it doesn’t replace proper measuring, level checks, or code-compliant construction. If a deck is being built on a sloped yard or next to an existing structure, the layout should be checked carefully before any footings go in.
The 3/4/5 rule for decks is a simple squaring method that helps confirm corners are set at 90 degrees. Builders use it during framing, but the job still needs accurate post placement, solid fastening, and a level surface so the deck stays stable over time. If you’re planning a new build, a proper site visit will show whether your yard needs grading or extra support first.
A small deck can sometimes be built for $5,000, but in many GTA homes that budget only works for a very basic pressure-treated platform with simple access and minimal railings. Height, foundation work, stairs, and composite materials can move the price up quickly. GTA Grizzly offers a free consultation and a locked-price proposal, so you can see exactly what fits your budget before you commit.
A 14×20 deck in Ontario usually costs more than a simple flat platform because size, material, elevation, and railings change the scope fast. Composite, cedar, and pressure-treated builds all land in different ranges, and permits or footings can add to the total. For a precise quote, GTA Grizzly provides free estimates and detailed proposals, with 24-hour turnaround for projects under $30K.
No, decking should not be laid directly on soil because it can shift, trap moisture, and fail much sooner. Most decks need proper footings or another approved support system, plus grading that keeps water moving away from the structure. If you’re unsure what your yard needs, a site visit will show whether the ground must be prepared before any framing starts.
A 14×20 deck in Canada can vary widely, but in the GTA the main cost drivers are material choice, height, stairs, railings, and foundation work. Ontario code requirements and site conditions can change the budget more than homeowners expect. GTA Grizzly gives free estimates and locked-price proposals, so you get a firm number before the build begins.
Fixing existing decking to make it look and perform professionally usually depends on whether the issue is loose boards, rot, bad framing, wobbly posts, or failing railings. Small repairs may be straightforward, while structural corrections can become close to a partial rebuild. The safest next step is a walkthrough, because the repair plan should match the underlying damage, not just the visible wear.
Rebuilding a 20×20 deck can range from a major repair to a full tear-down and replacement, depending on what’s wrong under the surface. If the framing, footings, or ledger are compromised, the cost rises because the structure has to be rebuilt correctly, not patched. GTA Grizzly can inspect the deck, explain the options, and provide a free locked-price proposal so there are no surprises later.
If you’re a homeowner trying to budget, deck repair pricing should reflect the scope, materials, access, and whether the repair is cosmetic or structural. In practice, a small repair is very different from replacing posts, joists, or railings, so one flat number rarely fits. A proper inspection is the best way to price it fairly, because hidden rot or movement can change the job fast.
You should pay for a deck based on the size, material, height, railings, stairs, and footing work required, not just the square footage. A licensed, insured, WSIB-compliant contractor with 20+ years of experience should also give you a clear written scope and warranty terms. GTA Grizzly provides free estimates, locked-price proposals, and a 5-year written workmanship warranty on approved builds.
Common deck repair issues include loose boards, soft spots from rot, wobbly posts, failing railings, and settlement around footings. In many cases, the first sign is movement or squeaking, but the real problem may be hidden in the framing below. If you notice those symptoms, get it checked early, because small repairs are usually easier to handle before structural damage spreads.
