Sill replacement Montreal

Benefit from our sill repair and replacement service during residential and commercial masonry work in Montreal. Call us for a quote!

During masonry work, such as repointing mortar joints, repairing a frost boil, or completely or partially replacing a brick wall, it’s possible that sills present in your wall may need to be replaced.

What is a sill?

A sill is a horizontal strip usually located between a window and the floor, or between a door and the ground. It serves to reinforce the wall structure, support the weight of the window or door, and provide space for the installation of the window sill or door sill. They are often made of concrete, stone, wood or other solid building materials.

What does a sill do?

• Structural support: The sill reinforces the wall structure by supporting the weight of the window or door above it.
• Load distribution: It distributes the load of the window or door over a wider area of the wall, helping to reduce stress on the building material.
• Thermal insulation: The sill can act as a thermal barrier, preventing heat or cold from entering the building through the bottom of the window, thus improving energy efficiency.
• Waterproofing: It can help prevent water infiltration, especially when properly sealed, thus protecting the wall structure and preventing moisture damage.
• Window sill or door sill support: The sill provides a flat surface on which the window sill or door sill can be installed, making it easier to open and close the window or door, as well as to use the space for objects or decoration.

What are the signs that sills need replacing?

• Cracks or deformation: If you notice significant cracks or visible deformation of the sill, it may indicate structural or aging problems.
• Difficulty opening or closing the window or door: If the sill has been improperly installed or has warped over time, it may be difficult to open or close the window or door.
• Material deterioration: If the sill is made of wood, stone or concrete, significant deterioration, rotting, erosion or surface degradation are obvious signs of problems.
• Water infiltration: Traces of moisture, mold or rot around the sill can indicate water leakage or poor sealing, which may require replacement.
• Thermal insulation problems: If you notice increased draughts or temperature variations near the window, this may be due to poor thermal insulation of the sill.
• Instability or sagging: If the sill appears unstable or sagging under the weight of the window or door, this may be a sign of structural weakness.
• Poor aesthetics: If the sill is damaged or has a degraded appearance that detracts from the aesthetics of the window or door, you may want to consider replacing it for aesthetic reasons.

What are the steps involved in sill repair and replacement?

• Initial assessment: First, we inspect the condition of the existing sill, the condition of the wall and surrounding structure, and the specific needs of the project.
• Site preparation: The site will be secured, with appropriate safety measures in place. Objects and furniture in the vicinity of the window or door opening will be removed or protected.
• Demolition of old sill: Our team will use appropriate masonry tools, such as jackhammers or masonry saws, to safely demolish the old sill, and we’ll make sure to remove all debris and materials from the old sill.
• Preparing the new sill: The new sill will be custom-made to the specific dimensions of the opening. The material of the new sill will be chosen according to the customer’s needs and preferences.
• Installing the new sill: The professional will apply a suitable mortar or adhesive to the top surface of the wall to secure the new sill. The new sill will be carefully positioned and adjusted to ensure that it is level and correctly aligned. Brackets or supports will be used to hold the new sill in place while the mortar or adhesive cures.
• Finishing and sealing: All joints between the new sill and the wall will be carefully sealed to ensure a proper seal.Aesthetic finishes can be applied according to customer preference.
• Window or door reinstallation: The window or door will be precisely reinstalled, ensuring that it fits and functions correctly.
• Cleaning: The construction site will be cleaned to remove any debris or residue.
• Final inspection and testing: Finally, our technicians will perform a final inspection to ensure that the newly installed sill is solid, watertight and functional. They’ll also make sure the window or door opens and closes properly.

Why choose Restaure-Action for sill replacement?

Our team of qualified professionals is dedicated to specialized masonry work, and has over 60 years’ combined experience. We have all the qualifications and skills you need for sill replacement. We can carry out these repairs in both the residential sector (houses, apartment buildings, townhouses, duplexes and triplexes) and the commercial sector (commercial spaces, warehouses, historic buildings, etc.). 

Any questions?

If you have any questions about our sill replacement and repair service, our other masonry services or to request a free estimate, we invite you to contact us. Our team will get back to you as soon as possible. We travel to many parts of Montreal to provide residential and commercial masonry services.