Your Complete Guide to Parging

For seasoned homeowners and first-time buyers, understanding the intricacies of parging can prove to be a valuable asset in your arsenal of home improvement knowledge. From providing a protective layer against the elements to contributing to the overall aesthetic appeal of your property, the art of parging is both functional and artistic.

Whether you’re considering a DIY project or seeking insights to collaborate effectively with professionals, this guide aims to be your go-to resource for all things parging. From foundation repairs to purely cosmetic, we’ll cover it all, ensuring that you emerge well-versed in the art of achieving a flawless parging finish.

What is Parging?

Parging is a construction technique involving the application of a thin layer of mortar or cement mix to the exterior of a building’s foundation walls. This layer serves both functional and cosmetic purposes. Functionally, it provides an extra layer of protection against weathering, moisture, and other external elements that can compromise the integrity of the foundation. Aesthetically, parging offers a smooth, finished surface that can improve the overall look of your home.

Why Parge Your Foundation?


One of the primary reasons to consider parging is its waterproofing capabilities. The mortar layer acts as a barrier, preventing water from seeping into the foundation. This is crucial for homes in areas with heavy rainfall, as water infiltration can lead to basement leaks, mold growth, and structural damage over time.

Enhanced Durability

Parging adds a protective layer to your foundation, shielding it from the effects of weathering, freeze-thaw cycles, and soil erosion. This can significantly extend the lifespan of your foundation, reducing the need for costly repairs.

Aesthetic Improvement

Beyond its functional benefits, parging can enhance the visual appeal of your home. The smooth finish provides a clean and polished appearance, covering imperfections and giving your foundation a more cohesive and attractive look.

The Parging Process

Surface Preparation

Before applying parging, the foundation walls must be thoroughly cleaned and prepped. Any loose or crumbling mortar should be removed, and the surface should be free from dirt, dust, and debris. A clean and smooth foundation ensures better adhesion of the parging mix.

Mixing the Parging Material

We recommend following the manufacturer’s instructions for mixing the parging material. Consistency is key; the mix should be smooth and free of lumps. You may choose to add a bonding agent to enhance adhesion.


Apply the parging mix using a trowel, starting from the bottom and working your way up. It’s crucial to maintain an even thickness throughout. Depending on the desired finish, you can create different textures with the trowel, from a smooth surface to a textured or brushed appearance.


Allow the parging to cure properly. This process involves keeping the surface moist for a specific duration to ensure optimal hardening. Failure to follow proper curing procedures can result in cracks and a weakened finish.

Tips for a Successful Parging Project

  • Weather Considerations: Parging should ideally be done in moderate weather conditions. Avoid extremely hot or cold temperatures, as these can affect the curing process. Also, steer clear of rainy days to prevent the mix from becoming too wet.
  • Safety First: When working with parging materials, wear appropriate protective gear, including gloves and safety glasses. Some mixes may contain irritants, so take necessary precautions to protect your skin and eyes.
  • Professional Assistance: While parging can be a DIY project, complex issues or extensive foundation damage may require professional intervention. If in doubt, consult with professionals to assess the condition of your foundation and recommend the best course of action.

Professional Masonry Services in Toronto

For top-tier masonry services in Toronto, look no further than Turnbull Masonry. Our seasoned experts specialize in a wide range of services, including meticulous brick and concrete repairs, chimney repair, precise tuckpointing, and other comprehensive masonry solutions. To receive a quote or learn more about our services, speak with a member of our team today!