Do Replacement Windows Come with Sills?

Do new windows come with sills? It’s a common question for homeowners considering window replacement. The answer depends on the type of window you choose, as well as the condition of your current windowsills. Understanding the role of sills and how they relate to window replacement can help you make the right decision for your upcoming project. Read our helpful guide to learn more!

What are Windowsills?

A windowsill is a horizontal surface found at the bottom of a window frame. It’s the ledge that rests on the interior wall beneath the window, and it serves several purposes. Sills provide structural support, distributing the window’s weight evenly across the wall. A well-fitted sill helps seal the window against air leaks and moisture infiltration, enhancing your home’s insulation. In addition, sills have aesthetic appeal and you can place objects on them for decorative purposes.

When Should You Replace Your Windowsills?

There may be instances where replacing your sills is necessary or beneficial, regardless of whether you’re undertaking a full window replacement project. Replacement may be prudent if your current sills are in poor condition. You may have noticed rotting, warping, or cracks. Not only do damaged sills look bad, they could be causing insulation issues or may no longer be providing adequate support. Damaged or ill-fitting sills can compromise your home’s insulation, causing air leaks. Installing new sills may help reduce your heating and cooling costs.

Benefits of New Windowsills

Whether you’re upgrading the entire window or just the sill itself, there are several benefits to windowsill replacement. New sills that are sturdy and well-made ensure the structural integrity of the window and prevent further damage. They ensure there’s a better seal between the window frame and the wall, enhancing energy efficiency. There’s also the fact that they simply look much better than old, degraded sills. Everyone wants a home that looks nice, and aesthetic improvements can also boost value if you’re thinking about selling in future.

Should You Install Sills Yourself or Hire a Professional?

When it comes to replacing windowsills, it’s important to get it right. Ensuring the installation is done correctly helps avoid any issues like improper sealing or water damage. Unless you're experienced with window installation or carpentry, it’s recommended to consult with window professionals who can handle the installation properly. Professional installers will ensure that the sills are perfectly aligned and secure, that proper insulation is applied to prevent air and moisture leaks, and that the new sills complement your window style.

Do Replacement Windows Come with Sills?

Whether or not your replacement windows come with sills depends largely on the type of window replacement you opt for. If you opt for full-frame replacement windows, they will most likely include the sill. Full-frame replacement sees the entire existing window unit removed, and a new unit installed in its place. This is recommended if the current frame and sill have deteriorated. Other instances include a change in the type of window, or if a homeowner wishes to change the size of the window opening.

Insert windows are another replacement option, and in this case, the existing sill will likely remain. Insert windows are installed within the existing window frame without disturbing the surrounding trim or sill. This tends to be a lower-cost option when your current sills and frame are in good condition.

Replacing your windowsills can offer numerous benefits, including enhanced aesthetics, improved energy efficiency, lower energy bills, and neighbourhood noise reduction. Always consider consulting a Window Expert to ensure your windows and sills are installed correctly and provide the best performance for years to come. Reach out to Centra today for your free consultation.

Western Canada’s Top Choice for Windows & Doors

Have an upcoming window and door project? Reach out to the experts for a free consultation! If you have any questions regarding this topic or anything else to do with windows, contact a local Centra Employee Owner at 1-888-534-3333 or drop us an email at info@centra.ca. Follow us on Facebook and Instagram to stay up to date, and test your window knowledge on LinkedIn.