Cost to build or renovate a deck in 2024

There’s nothing more enjoyable than relaxing on a deck, balcony or patio, with nothing else to do but enjoy the beautiful weather Or, why not set it up to work from home there. This outdoor space deserves a refresh from time to time. However, it can sometimes be challenging to choose the right material for a deck or balcony renovation. Various options are available, each with its pros and cons. To make your task easier, here’s a comparative table of materials with their respective prices for deck annd balcony construction.

The table below shows the average current prices per type of material. Of course, this can vary depending on the quality of the chosen materials, level of installation difficulty and several other factors.

Deck material

Average cost (incl. labour)

Fiberglass $55/ sq.ft. (without base structure)
$65/ sq.ft. (with structure)
Treated wood $65/ sq.ft. (without base structure)
$80/ sq.ft. (with structure)
Cedar $85/ sq.ft. (without base structure)
$100/ sq.ft. (with structure)
Roasted wood $75/ sq.ft. (without base structure)
$85/ sq.ft. (with structure)
Composite wood $85/ sq.ft. (without base structure)
$95/ sq.ft. (with structure)
Concrete $70/ sq.ft. (without base structure)
$85/ sq.ft. (with structure).ft.

*Please note that these prices are indicative. Several factors can influence the total cost of renovations, such as the type of work to be done, necessary labour, materials used, safety measures, demolition or displacement costs of structural elements, and unforeseen circumstances.

Factors influencing the cost of a deck

Demolition costs are among the main factors that can increase the bill. If an old deck needs to be dismantled, this can greatly increase the total cost of the project. The transportation cost of materials and equipment for a deck or balcony construction can also have a significant impact.

Quebec’s harsh winters also affect the cost. Deck structures must be designed to withstand extreme cold conditions, which may require more expensive materials or particular construction techniques.

Finally, the type of materials used can affect the total. Wooden floors may be cheaper but they require regular maintenance and don’t last as long as those made of aluminum, for example. The latter are more durable, require less maintenance but are more expensive.

covered balcony with armchairs and small table

Fibreglass deck

Recently popular, fibreglass is a very interesting material for deck construction. Indeed, it’s known for its lightness and durability. Fibreglass resists frost, fire, corrosion and sunlight without any problem, in addition to being waterproof. So, you can create storage spaces under your deck without fearing that your belongings will be damaged. This material does not tarnish over time and is easy to maintain. Just clean it from time to time with water and dish soap and you’re done! Finally, different colours are available and there’s even a wood imitation. 

On the downside, fibreglass is not very slip-resistant. You need to be careful not to trip or fall on rainy days and in the winter as the surface can get slippery. In summer, heat tends to be attracted to this kind of material – it’s possible that your deck or balcony will get super hot. Light colours are therefore a better idea. The cost of fibeglass is quite reasonable: $55/sq ft without the structure (covering an existing deck only) and $65/sq ft with the structure. The average lifespan of a fibreglass deck exceeds 20 years.

white fiber glass

Wooden deck (treated wood, cedar, and roasted wood)

Very popular in Quebec, wood is an interesting choice: its ecological and economical. Its lifespan varies from 10 to 50 years depending on the species chosen and good maintenance can add a few springs. There are a multitude of types of wood and each has its advantages and disadvantages. A wooden deck lasts on average between 10 and 25 years.

Treated wood: The most common type of wood because of its affordable price. It must be treated every three years, which results in significant maintenance costs. It costs approximately $80/sq ft with the structure and installation.

Cedar: This wood is appreciated for its very natural appearance and its beautiful color. Treatment is necessary for it to retain its hue and not brown under the effect of bad weather. It costs approximately $100/sq ft with installation.

Roasted wood: Baked in the oven, this ecological wood contains no chemical agent. Its resistance to time is however limited and its cost is quite high, between $75 and $85/sq ft with installation. 

small balcony ideas

Composite deck

A composite deck is made from wood residues, recycled plastics and artificial polymers, making it a very eco –friendly option. Its often chosen because it looks like wood and is especially durale. It doesn’t require maintenance and frequentlycomes with a 25-year warranty. Unlike fibreglass, a composite floor doesn’t get unbearably hot, evenwhen exposed to high heat. As its slip-resistant, it can the ideal material to use around a pool and spa.

Composite does have a few drawbacks. First and foremost is its price: between $85 and $95/sq ft (including materials, installation, and custom structure) depending on the type of composite chosen. In addition, the colour palette for this type is fairly limited and  sunlight is known to fade the shade.


Concrete deck

A wise choice for the lifespan it offers but less appreciated for its rather cold aesthetic appearance. Concrete offers many advantages: its slip-resistant, easy to maintain, does not discolour over time and has high resistance to UV rays and inclement weather. It’s used for both stairs and patios. A concrete deck can be built in one day.

The cost varies from $70 to $85/sq ft (with installation and reinforcements). Its lifespan, if well maintained, exceeds 50 years.

concrete patio

Aluminum deck

Aluminum is becoming an increasingly popular material for balconies, particularly due to its durability and weather resistance. Unlike wood, it doesn’t rot or warp over time, making it a wise choice for harsh Canadian winters. 

Other benefits of aluminum? It requires little maintenance, resists corrosion well and doesn’t need to be regularly painted or stained. Aluminum floors often come with a safe non-slip finish. 

However, this metal also has drawbacks. It can be more expensive than other materials. Some homeowners don’t like its industrial appearance. Moreover, an aluminum floor can become very hot under the summer sun… watch those bare feet!

The price of an aluminum deck varies according to its dimensions, complexity of the structure, and cost of labour. On average, you can expect to pay between $65 to $80/sq ft (and more for high-end quality). Therefore, it’s important to make a precise estimate before starting the work.

Verified contractors for deck and balcony renovation

At RenoAssistance, we understand that renovating a deck or balcony is a significant investment. Whether you choose an aluminum or wood model, our Verified Contractors are there to guide you at every step.

Don’t wait any longer, reach out to RenoAssistance to get your project underway A Renovation Advisor will be happy to accompany you throughout and recommend reliable contractors who have passed our 53-point Verification Process.

If you’re planning to build or redo a deck, balcony or terrace, Call us or fill out a form. One of our consultants will be glad to be there for you every step of the way and refer you to our 53 Points Verified Contractors.

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