Home Extension Guide

By Léa Plourde-Archer

Updated on October 23, 2024

Why move when we can transform and extend the living area of our house? Whether for economic, practical or aesthetic reasons, many people embark on house expansion projects. These large-scaled projects have many steps that must be respected to ensure that the result lives up to our expectations. 

In this guide, we have gathered all the articles that touch on the subject of home additions and different aspects of home renovations associated with this type of project. We hope that this guide can help you in your endeavours. 

The average prices of home extensions

It is not always easy to calculate the cost of a home extension project. Unplanned expenses can start accumulating and the prices of materials and labour can vary depending on the span of the work. In the following articles, we present an overview of the average prices of different types of extension projects as well as other associated work:  

Ajout d'étage sur une maison unifamiliale

The different types of home additions 

Building a new floor, extending towards the side, setting up a basement, adding a cantilever extension... You will have to choose the type of addition that best suits your needs, your budget as well as the rules and regulations that are effective in your city. Learn more about the characteristics related to the different ways of increasing and transforming your home's surface area: 

Échaffaudage

Adapting a basement or a crawlspace

Both the basement and the crawlspace can be transformed into utilitary spaces. In the case of the crawl space, we are of course mainly referring to storage space, but this set-up can still contribute to a general improvement affecting the configuration of the house. Of course, spaces that are located below the earth have very specific characteristics concerning light and ventilation. You will find more information in these articles: 

Chambre à coucher dans grenier

Attics 

Attics can also be turned into liveable spaces! Incidentally, Pinterest and other home decor sites are chock-full of photos presenting bedrooms or apartments that are located under a roof. Here are two articles about attic insulation, which is essential when making this space inhabitable: 

Verrière

Verandas and sunrooms

Taking advantage of the natural light and the outdoor environment whilst being protected from bad weather is one of the main purposes of verandas and sunrooms. Depending on your budget and preferences, these can be set up to be used during certain seasons or year-round. 

Building and setting up a garage

A garage is a structure that first serves to store cars but that can also be used for storage, or transformed otherwise if you don't need to use it for a car. Here are 3 articles about building and setting up garages: 

Foundations

Oftentimes, to build a home extension, you have to strengthen the building's structure. Here are 3 articles about this subject: 

Revêtement extérieur de maison

The practical aspects of building a home addition

As you can see, home extension projects contain many steps as well as an impressive amount of things to consider. Here are a few articles that can be useful to learn about building permits, subsidy programs and other prices for home renovation projects (floors, walls, paint, insulation, etc.). 

Other advice

Finally, here are a few other articles that can be useful in this context: 


Get 3 renovation quotes for your home addition project

RenoQuotes.com can help you get quotes for. By submitting your home addition project to us, we’ll put you in contact with top-rated contractors. Fill in the form on the homepage (it only takes a few minutes), and you will get estimates from trusted professionals.

Dial 1-844 828-1588 to speak with one of our customer service representatives


Get 3 free quotes for your project!

Submit a project and get 3 free quotes!

Looking for something else?

Table of contents

3 min read

Find contractors near you

Enter your postal code



Related articles

The latest industry news, interviews, technologies, and resources.

3 min read

Léa Plourde-Archer

26 Feb 2024

Insulation and Soundproofing Guide

Insulation is one of the key elements in terms of the level of comfort inside a home. This statement is even more true in a country where winters are harsh and summers are very hot. Indeed, even during the summer, insulation plays a major role because if the walls and other elements are poorly insulated, hot air will pass and energy expenses will be increased.

3 min read

Léa Plourde-Archer

12 Jun 2025

Paint and Wall Covering Renovation Guide

When it comes to interior transformations and renovations, walls are one of the first elements that come to mind. They are often one of the least expensive renovations, and many people decide to complete the work themselves. 

5 min read

Léa Plourde-Archer

08 Nov 2023

Wood Panels and Wood By-products as Wall Covering

Of course, it should come as no surprise that wood is a popular flooring material. Hardwood is classic beneath our feet and used alongside an abundance of home decor styles.

Wall coverings
4 min read

Editorial Team

08 Nov 2023

Tips and Tricks for the Best Commercial Soundproofing

If you work in a noisy restaurant, busy boutique or open-concept office, chances are you’ve thought for a moment or two about the sound in the room. In all of these commercial spaces, it’s probably obvious that sound can be difficult to contain: whether this means receiving noise complaints from neighbours, having frustrated customers, restaurant crowd commotion or the roars of construction finding their way into your quiet business. So, what are the ways to soundproof a commercial space?

Commercial renovation
4 min read

Editorial Team

08 Nov 2023

Everything to Know About Industrial Air Conditioning

Industrial air conditioners are, contrary to what their names suggest, units that can do more than just air conditioning. A variety of air handling operations are possible, ranging from controlling incoming air pollution, humidity and, in some cases, also acting as a heater.

Interior renovations