Are you looking for a contractor?

Submit our quick form and get quotes now!

Table of Contents


6 min read

What are the best practices for resurfacing a concrete floor?


6 min read

What are the best practices for resurfacing a concrete floor?

FlooringWhat are the best practices for resurfacing a concrete floor?

If you have a concrete floor that needs a new finish or you’re wanting to change the look of your floors and looking for an alternative to hardwood or ceramic, floor resurfacing could be of interest to you.

Concrete floor resurfacing

Floor resurfacing refers to the set of practices adopted to apply a floor covering directly on previously treated concrete. This practice is very common in commercial and residential garages, but it’s starting to become more popular to work with any interior, depending on the finish, the environment and the decor of the room itself.

plancher de béton dans une cuisine_Resurfaçage de planchers en béton: les meilleures pratiques_Soumission Rénovation

The advantages of resurfacing are numerous: a concrete floor will be very durable and give a room a modern look, in addition to being perfectly smooth and showing no imperfections, provided it is properly treated! The different flooring options will adapt to everyone's tastes, needs and budgets. We will also discuss them in this article.

Concrete resurfacing practices

Check concrete moisture

Resurfacing implies that if one removed the wood or ceramic flooring as well as the adhesive that secured it to the concrete subflooring was completely removed. For the ways to remove flooring or sub-flooring, consult our article about it!

Before beginning the preparation for resurfacing, it’s recommended that you complete a concrete humidity test. The concrete must be dry for at least 72 hours before the test and kept above 15 degrees Celsius, at the risk of distorting the final result. The humidity test consists of a paste of polythene film placed on four or five places along the concrete surface applied using masking tape.

If after 24 hours, the concrete is damp or droplets are present on the polythene, this means that the concrete is humid. In this case, you should get in touch with a concrete resurfacing professional who can advise you on exactly what to do and if resurfacing is your best option.

polissage d'un plancher de béton_Resurfaçage de planchers en béton: les meilleures pratiques_Soumission Rénovation

Treat concrete before resurfacing

There’s nothing to prevent a floor coating from being applied directly to a concrete surface without treatment. On the other hand, a well-treated concrete floor will be completely free of imperfections, smooth and straight, in addition to allowing better adhesion of the floor covering.

Cleaning it properly with a vacuum cleaner and a push broom is enough to remove dust as well as fine particles that may have surfaced over time.

Once this step is completed, it’s advisable to thoroughly clean the cement with a solution of hydrochloric acid specifically designated for concrete. Hydrochloric acid has the effect of dislodging oily or solid residues that may have accumulated in the cement.

When it comes to corrosive chemicals, safety gear should be worn at all times. Safety boots whose sole will help to prevent acid burns, rubber gloves, protective goggles and a mask must be worn when handling this type of product.

Between cleaning and acid treatment, it’ll be necessary to ensure that the concrete is dry. Once the floor is dry and properly treated, grinding may be necessary if the concrete surface has imperfections.

Grinding is a smoothing technique that uses a concrete grinder equipped with diamond blades. Concretely, a grinder makes a concrete surface completely flat. This is a process that can create a lot of dust, but luckily, most grinders come with vacuums.

Once the floor has been cleaned, treated and the work with the grinder is complete, you should have a raw concrete surface that’s ready for the application of a floor covering.

If the use of concrete in residential renovation interests you, check out our article on the 5 things to know about architectural concrete!

plancher de béton dans un salon_Resurfaçage de planchers en béton: les meilleures pratiques_Soumission Rénovation

Flooring: which to choose?

Three products are most often used in resurfacing concrete floors: colourless epoxy, polyaspartic and polyurea. Let's take a look at the particularities of these three-floor coverings.

Clear epoxy is an economical solution that can be used for interior spaces as its glossy finish gives it a beautiful sheen. However, it’s rather poorly resistant to UV rays. But a polyaspartic-based protective coating can be applied afterward to give it permanent protection against discoloration due to UV rays.

The polyaspartic coating dries very quickly and can be applied regardless of the season. As we mentioned earlier, it’s perfectly resistant to UV rays, so it won’t yellow over time. It is also highly resistant to weathering, temperature changes as well as scratches and shocks, making it an ideal choice for exterior cladding.

On the other hand, polyurea coating is mainly used for garage floors. Polyurea-based flooring resists abrasion that might take place from granular materials caused by tire rubber from time to time. This coating is also resistant to road salt, gasoline, oil, and impacts caused by accidents, such as a tool falling on the surface.

It’s also possible, regardless of the coating, to add decorative vinyl flakes if you wish to have a particular finish as shown in the example photo below. Non-slip materials can be added to the flooring if it needs to meet this requirement.

plancher de béton avec flocons de vinyle_Resurfaçage de planchers en béton: les meilleures pratiques_Soumission Rénovation

Once the coating is applied, it must dry for the period indicated by the retailer. Note that a minimum of 12 hours must be respected for the initial drying. In addition, it’s advisable to wait 24 hours to drive on the surface and 48 hours to park a vehicle (in the case of a garage).

In summary

Concrete is strong, but needs to be treated well: more than half of the resurfacing preparation is done before even applying a floor covering!

The resurfacing steps can be as simple as cleaning the concrete surface, treating it with an acid solution formulated specifically for concrete, smoothing (if necessary) with a concrete grinder, and applying the flooring of your choice. 

Whether it's clear epoxy, polyurea, or polyaspartic, be sure to select a coating suitable for the activities that will take place in the designated space and to respect the drying times.

Would you like to know about the steps to take to complete a floor renovation project? Check out our Floor Renovation Project: Checklist of the Steps to Follow.

Would you like an estimate of the cost of your flooring project? Try our price calculator!

Photo source: Flickr

Get 3 quotes for your flooring project will put you in contact with 3 reliable contractors for your floor renovation project. Fill in the form on our homepage (it only takes a few minutes), and you will receive quotes 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!

Last modified 2023-11-07

List of sources

Get 3 free quotes for your project!

Submit a project and get 3 free quotes!

Looking for something else?

Table of contents

Get 3 free quotes for your project!

Submit a project and get 3 free quotes!

Are you a contractor?

Join our network and receive real leads!

Download the price guide for renovations

We’ll be emailing you the latest market price guide for renovations.

Related articles

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

7 min read • 07 Nov 2023

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. 

6 min read

N/A • 07 Nov 2023

How to Choose a Water Heater: Important Criteria

Are you looking to replace your water heater? While this isn't an exciting buy, it’s nonetheless an important one. Indeed, having daily access to hot water is certainly essential and our comfort greatly depends on it.

6 min read • 19 Jun 2024

Why Use Acrylic Parging on Your House?

Acrylic parging—an aesthetic and durable solution—is the number one choice of exterior coating. It can be layered atop various materials, from concrete to brick, with stone in between, and makes for a robust, waterproofing solution for foundations. On account of its ability to withstand weather variations, it doesn’t crack easily, further safeguarding the integrity of buildings. Discover the benefits of such an exceptional exterior coating, as well as its application method.  

6 min read

Karine Dutemple • 07 Nov 2023

How to Prepare Your Yard for Spring

Naturally, one welcomes spring with open arms after such a harsh winter. If this magnificent season brings with reason its share of small pleasures, it also brings with it many essential tasks to accomplish to prepare your backyard well for the arrival of warm weather. Learn how to proceed with your backyard spring cleaning. 

6 min read

Cynthia Pigeon • 07 Nov 2023

How to Choose the Right Colour of Your Roof

Are you shopping around for a new roof? Do you also want to change the siding on your house, but aren't sure which roof colour is best? Well, you've come to the right place! Below, we've outlined all the factors to consider when choosing a roof colour for your Quebec home.

Looking for a contractor?

Submit a project and get 3 free quotes now!