Need to Install a New Window? Here’s a Three-Step DIY Approach

If you’re looking to install a new window on your own, you’re going to have to do things by the book. While not an overly complicated DIY job, it does require a lot of patience and a methodical approach if you want it to turn out well.  Providing that you’re careful and systematic in the way you work, most seasoned DIYers should be able to manage – but you’ll need the right guide.  Below, you’ll receive a simplified, three-step tutorial on fitting your new frames. Follow it properly, and you’ll have great-looking, well-functioning fittings by the end!

Step 1: Preparing the Area

One of the most important steps for a clean, flush fit is preparing the area properly for installation.  This means first carefully removing the old frame and glass. Use a utility knife to strip the caulking around the edges, unscrew the adjoining screws, and then use a pry bar or crow bar to carefully lift the window from the casing bit by bit. Be sure not to rush anything, as you could damage the surrounding woodwork.  Once you’ve got the old frame out, clean the area thoroughly and leave it to dry out for an hour or so. You’ll also want to remove any extra sealant with your knife at this point. From here, measure the entire opening and note down the dimensions. 

Step 2: Fitting the New Frame

It’s now time to install the new window and frame. Having measured, you should find that it fits comfortably into the original frame. You’ll need to use small shims to make sure everything’s level and square, and this can take some time to get right. Use a spirit level each time you add a shim to check everything’s perfect.  Having gotten the window aligned, it’s time to insert your window screws. It requires just the right amount of tightness (when you come up against a fair bit of resistance, stop). Once you place a screw, check once again that everything is square and level; you may need to make several adjustments. 

Step 3: Finishing Up

Your window should now be functional, opening and closing with ease and fitting snuggly into the original opening. Now, it’s time to apply the finishing touches. Any gaps can be filled with wood filler, and for larger areas where draft is coming in, you’ll want to apply a little bit of expanding foam before filling. When choosing a new sealant, go for something weatherproof and apply liberally – the best way to smooth it out is with a damp, lint-free cloth or simply your finger. 

Wrapping Up

Hopefully, this quick guide to fitting a new window has been useful for you. If you’re dealing with several windows or ones that are larger in size, you’ll definitely want someone to come and help you to make the installation safe and efficient.  While there are several things you need to be careful with, the installation isn’t as difficult as it seems once you understand the basics (again, just be patient).