What is the price of a 4-season sunroom in 2025?

by | Jun 19, 2024

Would you like to enjoy a bright room all year round? A 4 seasons solarium is just the thing for you. Like many of our customers, you’re probably wondering how much a 4 seasons solarium costs. The final price will depend on the materials used, the work carried out and the warranty, among other things. Here are the factors to consider when calculating the average price of a 4 seasons solarium.

How much does a 4 seasons solarium cost?

First of all, it’s important to understand thatit’s not possible to calculate a price per square foot for a 4 seasons solarium. The walls are calculated in linear feet, and the roof and floor are calculated in square feet, which complicates the calculation. The calculation will also depend on a number of factors other than size.

Several factors will influence the price of a 4 seasons solarium:

  • Wall height
  • Roof type: 1-pitch or cathedral
  • Type of interior and exterior finish
  • Window materials
  • Wall materials
  • Structure thickness

A final factor to consider is the price of materials. This can fluctuate for a number of reasons, such as the arrival of COVID-19. Demand for wood rose sharply during containment, while production capacity fell. As a result, the price of wood became unusually high. Fortunately, this increase had little impact on the price of 4 seasons solariums, whose structure is made of fiberglass. However, we use wood for the base of the floors, and suppliers have increased their prices by 5%.

A few projects to give you an idea of costs

As you can see, it’s impossible to calculate the cost of a 4 seasons solarium based on room size alone.
4 saisons – 53 000$
8 Photos

Final project cost: 59 200 $

Price excludes taxes

Project details

Four-season solarium ($40 900) including:

  • Dimensions: 12′ x 10′
  • Installation of the solarium
  • Wall height: 10′ at the highest point and 8′ at the lowest
  • Fiberglass structure coated with PVC, white color
  • Sliding double-pane glass windows, thermos, Low E, Argon, Energy Star certified
  • 1 double-pane glass patio door, thermos, Low E, Argon, Energy Star certified
  • Insulated cathedral-style roof (R42), vinyl interior finish, exterior shingles
  • Stained wood beam finish
Selected options
  • R32 insulated floor on screw piles
  • Electrical and heating systems
  • Vinyl floor covering
  • Gutter
  • CanExel skirting (covers the underside of the base)
  • 42″ × 42″ aluminum balcony with 4 steps
Additional options

Plan for an additional budget for the following options:

  • Wooden slat or gypsum ceiling
  • Gypsum, wooden slat, or thermos glass half-wall
  • Opening of the wall leading to the house
  • Non-standard patio door or single door
  • Finishing the house wall in gypsum or wooden slats
  • Roof modification (if necessary)
4 saisons – 54 000$
9 Photos

Final project cost: 60 800 $

Price excludes taxes

Project details

Four-season sunroom ($41,000) which includes:

  • Dimension: 13′ x 10′
  • Sunroom installation
  • Wall height: 8′ at the highest and 7′ at the lowest
  • Fiberglass structure coated with PVC, white color
  • Double-glazed sliding windows, thermos, Low E, Argon, Energy Star
  • 1 double-glazed patio door, thermos, Low E, Argon, Energy Star
  • R42 insulated single-pitch roof, interior finish in vinyl, exterior in granulated membrane
  • Wall in insulated panels, PVC interior finish
  • Vinyl floor covering
Selected options
  • R32 insulated floor on screwed piles
  • Electrical work and heating
  • Flooring
  • Gutter
  • Vinyl skirting (part that covers the base underneath)
  • 42″x42″ aluminum balcony, 4 steps
Additional options

Plan for an additional budget for the following options:

  • Wooden slat or gypsum ceiling
  • Gypsum, wooden slat, or thermos glass half-wall
  • Opening of the wall leading to the house
  • Non-standard patio door or single door
  • Finishing the house wall in gypsum or wooden slats
  • Roof modification (if necessary)
4 saisons – 70 000$
12 Photos

Final project cost: 84 450 $

Price excludes taxes

Project details

Four-season sunroom ($64 250) which includes:

  • Dimension: 16′ x 12 ‘
  • Sunroom installation
  • Wall height: 8′ at the highest and 7′ at the lowest
  • Fiberglass structure coated with PVC, white color
  • Double-glazed sliding windows, thermos, Low E, Argon, Energy Star
  • 2 large fixed windows on the front
  • 1 double-glazed patio door, thermos, Low E, Argon, Energy Star
  • R42 insulated cathedral roof, interior finish in wood slats, exterior in granulated membrane
  • 2 faux wood beams
Selected options
  • R32 insulated floor on screwed piles
  • Electrical work and heating
  • Vinyl floor covering
  • Gutter
  • Vinyl skirting (part that covers the base underneath)
  • 42″x42″ aluminum balcony, 4 steps
Additional options

Plan for an additional budget for the following options:

  • Wooden slat or gypsum ceiling
  • Gypsum, wooden slat, or thermos glass half-wall
  • Opening of the wall leading to the house
  • Non-standard patio door or single door
  • Finishing the house wall in gypsum or wooden slats
  • Roof modification (if necessary)
4 saisons – 68 000$
11 Photos

Final project cost: 76 700 $

Price excludes taxes

Project details

Four-season sunroom ($50,000) which includes:

  • Dimension: 14′ x 12 ‘
  • Sunroom installation
  • Wall height: 10′ at the highest and 8′ at the lowest
  • Fiberglass structure coated with PVC, white color
  • Double-glazed sliding windows, thermos, Low E, Argon, Energy Star
  • 1 double-glazed patio door, thermos, Low E, Argon, Energy Star
  • R42 insulated roof, cathedral, interior finish in vinyl, exterior in shingles
  • Stained wood beam finish
Selected options
  • R32 insulated floor on screwed piles
  • Electrical work and heating
  • Ceramic covering floor
  • Opening in the wall 14′ (7′ to floor and 7′ up to the ceiling)
  • Gutter
  • Vinyl skirting (part that covers the base underneath)
Additional options

Plan for an additional budget for the following options:

  • Wooden slat or gypsum ceiling
  • Gypsum, wooden slat, or thermos glass half-wall
  • Opening of the wall leading to the house
  • Non-standard patio door or single door
  • Finishing the house wall in gypsum or wooden slats
  • Roof modification (if necessary)
4 saisons – 84 000$
10 Photos

Final project cost: 84 000 $

Price excludes taxes

Project details

Four-season sunroom ($57,000) which includes:

  • Dimension: 20′ x 11 ‘
  • Sunroom installation
  • Wall height: 11′ at the highest and 9′ at the lowest
  • Fiberglass structure coated with PVC, white color
  • Double-glazed sliding windows, thermos, Low E, Argon, Energy Star
  • 1 double-glazed patio door, thermos, Low E, Argon, Energy Star
  • R42 insulated cathedral roof, interior finish in gypsum, exterior in shingles
  • Insulated wall, interior and exterior finish in vinyl
Selected options
  • R32 insulated floor on screwed piles
  • Electrical work and heating
  • Ceramic covering floor
  • Opening of the house wall over 20′ width
  • Gutter
  • Vinyl skirting (part that covers the base underneath)
  • 42″x42″ aluminum balcony, 4 steps
Additional options

Plan for an additional budget for the following options:

  • Wooden slat or gypsum ceiling
  • Gypsum, wooden slat, or thermos glass half-wall
  • Opening of the wall leading to the house
  • Non-standard patio door or single door
  • Finishing the house wall in gypsum or wooden slats
  • Roof modification (if necessary)

An investment that pays off!

Un agrandissement à part entière

Did you know that a 4 seasons solarium is considered an enlargement of a house because it meets all current standards for a home addition?

Un investissement qui augmente la valeur de votre propriété

Adding a four-season extension increases the livable square footage of the house, which will increase the value of the home upon resale. It’s a winning investment!

Un espace lumineux très recherché

What’s more, according to real estate brokers, a bright room like a 4 seasons solarium is what buyers are looking for.

Une pièce à vivre toute l’année

These days, buyers are not only looking for a beautiful home, but also one with lots of natural light. Adding a 4 seasons room like a solarium lets you enjoy both the sunny days and the cold days of our Quebec winters.

Are you thinking of opting for a 3 seasons solarium instead, or would you like to compare the costs of the two types of solariums? See our article on the price of a 3 seasons solarium.

Do you have further questions about 4 seasons solariums? Contact us or come and meet our team in our showroom.

We’ll discuss your future solarium together, and help you make your project a reality.