Our skilled team of professionals is well-versed in the latest industry trends, building techniques, and local building codes. We understand that building a deck can be a significant investment, and we’re here to guide you through the process.

For homeowners in Richmond Hill who may be ordering a deck builder for the first or second time, the construction process can be a bit overwhelming. That’s where Demex Decks excels. We take the time to explain every step of the process, ensuring that you have a clear understanding of what to expect.


Years Experiences
Great Projects
Customer Rating
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We are trusted for our work and provide it with a warranty.

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Free Quota

In addition to a free quote, we'll help you keep within your budget.

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Professional Tools

Ready to work, we use professional equipment.


Building Your Dream Project


Contact Demex Decks today, and let us turn your vision into a stunning, functional, and long-lasting deck. Our team is ready to provide you with a free consultation and a no-obligation quote. Make your home in Richmond Hill stand out with a beautifully crafted deck from Demex Decks, your local experts in deck building.
Demex Decks
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When it comes to deck building in Richmond Hill, you need a local expert who understands the unique needs of your community. Demex Decks has been proudly serving the Richmond Hill area and its neighborhoods since 2010. Our deep roots in the community allow us to provide a personalized and professional touch to every deck project we undertake.

At Demex Decks, we take immense pride in our reputation for customer satisfaction. We believe that the key to a successful project is not only the quality of the work but also the positive experience our clients have during the construction process.

Rooftop Deck
Second-Floor Or Walk-Out
Pool Deck
Multi-Level Or Multi-Tier
Backyard Deck
Attached Deck
Detached or Free-Standing
Floating Deck


If you are looking for deck building contractors in Richmond Hill, Demex Decks is your best choice. With our knowledge, years of experience, commitment to customer satisfaction, and best value, we are the trusted partner you need for your deck building project. Contact us today, and let’s create the deck of your dreams.


In addition to our competitive pricing, we offer a wide range of design options and materials to choose from, allowing you to customize your deck to suit your style and budget. Whether you’re looking for a traditional wooden deck or a modern composite one, we have the expertise to deliver the perfect solution for you. Our transparent pricing model ensures that you know exactly what you’re paying for, with no hidden costs or surprises along the way.


What neighborhoods in Richmond Hill do we serve?

Demex Decks Company proudly serves all neighborhoods in Richmond Hill. Our service areas include but are not limited to:
  • Oak Ridges
  • Bayview Hill
  • Jefferson
  • Mill Pond
  • Crosby
and every other neighborhood in Richmond Hill.

How long it takes to build a deck?

The size of the deck should be taken into consideration, the more complex the deck design, the longer it may take to complete. On average, deck construction in Richmond Hill takes between 5 to 14 business days. The exact timeline for deck construction can be given after the project design has been surveyed and agreed upon.

How much it costs to build a deck?

You can calculate the approximate cost of a deck using the data on the cost page. To calculate the full cost, you need to be an expert in deck building and understand all the technical aspects, know the quantities of all materials needed and their costs, as well as your city’s deck building codes. Or simply contact us for an estimate.

How to contact the Building Services ​Department in Richmond Hill?

Address: 225 East Beaver Creek, Richmond Hill, ON L4B 3P4

Phone: 905-771-8810
Email: building@richmondhill.ca

Monday through Friday, 8:30 a.m. to 4:30 p.m.

Whether a permit is required to build a deck in Richmond Hill?

Any deck where one or more of the following applies requires a building permit:

  • The deck is attached to a building (i.e., the house)
  • The deck is more than 2 feet (600 mm) above average grade, or
  • The deck is more than 108 ft2 (10 m2) in area.

Which are Zoning By-law Standards in Richmond Hill?

Richmond Hill includes 28 zones, each with its own zoning regulations. Visit the Richmond Hill website page and submit a “Zoning and Compliance Letter Request” for all zoning and compliance information in your neighborhood.

What building codes govern the construction of decking in Richmond Hill?

Your project will need to comply with the Building Code Act (BCA), the Ontario Building Code (OBC), local zoning bylaws and any other applicable regulations that apply to the project. You can read the Ontario Building Code of May 12, 2023 below.