Golden Valley Decks
“He offered valuable insights and suggestions, ensuring the design seamlessly integrated with the architecture of my house and the surrounding landscape”
Best Deck Builders in Markham, ON
15 companies listed · 5 in Markham · 2 open 24/7 · 13 open weekends · 13 rated 4.5+
Data verified October 21, 2026
Yardcore Landscaping Design Inc.
“David's excellent communication made a huge difference; he always kept us informed from the beginning and provided updates before proceeding with each step.”
QPS Landscape & Pool Professionals
“I have spent a lot of money in my backyard, and the quality of work I couldn't ask for a better company to do this for me and my family.”
Hrc Group
“Based on the work that was completed and the knowledge base that shaw has, we are already planning to work on another project with him.”
Noble Renovation
“They have done 2 bathrooms for us and they turned out fantastic.”
Action Home Services
“He is very talented and his knowledge and experience shows in his work.”
Listed for homeowners in and around Markham, ON, these 15 companies build and repair decks, where footing depth and snow are part of every design. Listings reflect what each company publishes itself, and the ratings and comments are taken from public reviews.
Area overview: Markham, ON
5 of the 15 companies we list are based in Markham; the other 10 serve Markham from towns including Scarborough (15 km), Concord (19 km) and North York (10 km). The companies on this page are rated from 4.0 to 5.0 across 1,257 reviews; 9 have 50 or more reviews and 13 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (100%), quality (96%) and punctuality (80%). The topics that come up most in reviews of the companies on this page are "estimates", "communication" and "efficient". 2 are open around the clock; 13 are open on Saturdays and 6 on Sundays. The services the companies on this page list most often on their websites are decks (4), fences (4), landscaping (3), composite decks (2) and interlocking driveway (2). 1 shows a licence on its website. 2 have ten or more years of experience, the longest 17 years. 2 offer emergency call-outs; 11 give free estimates and 4 are family- or locally-owned. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
What should I look for on a deck builder's site?
All 15 deck builders on this page list a website. The pages worth reading are the ones showing framing and footings rather than furniture on finished boards. Photos of piles going in or a flashed ledger say more about the build than any gallery of summer evenings.
Royal Innovation Deck Builder
“We were also surprised by the efficiency and the professional attitude of the contractors who came in to handle our problems.”
Living Construction and Landscaping Inc
“They took the extra time and effort to make sure the work was done well, were clear and helpful in consultation about the work as it proceeded including coping with changes and even adding extras that we didn't even ask for.”
Luke's Landscaping
“First time customer using Luke's Landscaping for my snow removal… I am extremely satisfied with the work that Luke's team has provided… They are timely and the team does a professional, cleanup job!”
Top Quality Decks and Fences
“Sheldon and his team were able to repair a fence and build a new one in just a few days.”
Gray's Deck & Fence
“Gray's Deck and Fence Company ordered the wood and installed a brand new ground level Floating Deck for us and we are super pleased with the results.”
A.maximum Construction
“They provided a reasonable price and did an excellent quality job to rebuild the foundation of the landing and deck stair.”
Buildingbybri Handyman & Tree Services
“They redid our posts and backyard gate and removed a tree.”
GTA Grizzly Landscaping and Interlocking Vaughan
“The fence they installed not only provides security but also looks stylish.”
Pashadeck Inc.
“Will definitely work with them again in the future for other projects.”
Why these companies made our list
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