What Are the Impacts of the Rising Costs of Building Materials?

By Karine Dutemple

Updated on November 7, 2023

Do you intend to start a housing construction project shortly? As this project is certainly a large one, it is quite normal to have some concerns or questions about the current increase in the cost of building materials.

What will be its impact on the cost of your future property and what about the contracts already signed? Read on to find out!

The impact of rising construction material costs

installation d'un plancher_Soumission RénovationAlthough you have already submitted an article on the subject, the situation surrounding the rising cost of building materials is once again a concern that is mobilizing many construction contractors. Indeed, it seems that the pressure on the construction industry is currently particularly strong.

Moreover, the lack of skilled labour does nothing to improve the situation. As a result, the ACQ recently submitted several requests to the Quebec government to prevent this already difficult environment from escalating.

To paint an evocative picture of the situation, it is important to note that the main materials affected are:

  1. lumber;

  2. truss;

  3. plywood;

  4. doors and windows;

  5. roof farms;

  6. plumbing items;

  7. wood engineering products.

To a lesser extent, steel, concrete, aluminum, asphalt shingle and gypsum panels are also affected by the current price increase.

Of course, you are aware that a construction contractor must be able to generate a reasonable profit margin in a construction project. As a future owner, it is perfectly normal to question the concrete impact of this increase on the cost of this large-scale project.

Building a new home: Can costs be changed?

maison en construction_Soumission RénovationIn the case of new construction, the preliminary contract stipulates that a contractor can increase the amount set for the cost of the work. However, note that this practice is supervised and must meet several criteria to be applicable.

First of all, be aware that the price increase must be unpredictable and that the adjustment of the cost of the work can only be made before the signing of the notarized sales contract. Besides, the manufacturer must provide supporting documentation to testify to the validity of its application to the buyer.

While the increase in the sale price of a property may be caused by an unpredictable fluctuation in the cost of materials or by a change in the working conditions of employees working in this sector, it may also be justified by an increase in the fees charged by the Residential Construction Guarantee. In the latter case, too, the contractor will be able to increase the amount initially determined for the sale of the property.

Once the supporting documents are provided, you will have 15 days to sign a document approving the change in the sale price. Finally, the new sale price will be set and considered to be approved by both parties.

Apart from the context surrounding the construction of a new home, it should be noted that a contractor may increase the asking price for a project if a clause in the contract allows it to be completed. Contracts provided to APCHQ members usually contain a mention in this regard to protect contractors from this type of situation.

For information, it is estimated that the current rise in the cost of materials will increase the budget required for the construction of a new home by about 10%.

What if there's no clause?

cuisine_Soumission Rénovation

For contracts without a specific clause, then one must turn to the Civil Code of Quebec. The latter provides for what can be done in such a combination of circumstances depending on the type of contract signed. So here's what applies to:

  • An estimated contract: possible change if the increase is unpredictable when the contract is signed;

  • A contract-based enterprise agreement: no applicable changes;

  • Preliminary contract (a promise to sell): no changes allowed;

  • A cost-effective contract: possible change.

Get 3 renovation quotes for your home renovation project

RenoQuotes.com can help you get quotes for your home renovation project. If you submit your 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.

6 min read

Amanda Harvey

07 Nov 2023

How to Prevent or Fix Roof Water Leaks

If you find an infiltration of water through the roof of your home, then it may raise some concerns about the consequences. In the same regard, this situation should raise questions about the measures that need to be taken to avoid this unpleasant occurrence.

3 min read

Editorial Team

02 Jun 2025

Home Resale Renovation Tips

Taking on a home renovation is never easy. From the get-go, we’re only thinking about the result. Just picture that beautiful new tile floor, those gorgeous new windows or a full-on kitchen remodel, complete with green-friendly appliances.

8 min read

Editorial Team

23 Jul 2025

How to Choose the Best Caulks and Sealants

Caulking can be defined as the process of sealing or filling gaps, done to prevent leaks and drafts. To do so, numerous caulking or weatherizing products are developed and often sold in retail stores as caulks, sealants, or mastics. They’re made with butyl, silicone, urethane, acrylic, or even latex, and said material diversity makes it all the more difficult to choose the right product.

Windows and doors
7 min read

Editorial Team

22 Jan 2025

Wall and Floor Tile Materials

Tiles are crafted with different materials. Having a clear understanding of said materials means choosing aesthetic and hard-wearing wall and floor coverings. Here are 6 of the most used types of tiles, whether indoors or outdoors. 

7 min read

Léa Plourde-Archer

08 Jan 2025

Kitchen Remodel - What to Consider Before Kicking Off a Project?

For most homeowners, kitchens often figure at the top of their home renovation list. Since it gets a lot of foot traffic and is constantly used, it’s important to plan a kitchen remodel that perfectly suits—or nearly so—your family’s every need.