Demolish the Old Window Frame — Remove the Old Window Frame

Intermediate2 mins

Part of project

Window Replacement · Step 3 of 10

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In this video

Use a reciprocating saw (Sawzall) to cut the old window frame. The presenter recommends cutting the frame right in half, down the middle of one of the vertical jambs. This allows the frame to be 'peeled open like an onion' for easier removal. After cutting, use an impact driver or drill to remove any remaining screws holding the frame in place. A hammer and pry bar can be used to loosen and remove any stubborn parts of the frame, including any jamb extensions. Finally, clean out any old insulation, debris, or dried expansion foam from the rough opening.

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FAQs

Is replacing a window genuinely an 'intermediate' DIY project, and can it realistically be completed in two days?

Yes, it's considered intermediate due to the precision required for sealing, leveling, and potential structural work. The two-day estimate is realistic for a first-timer, accounting for thorough preparation, careful installation, flashing, sealing, and trim work. Unexpected issues like discovering wood rot or an out-of-square opening can extend the timeline.

What are the most critical safety precautions I should take when replacing an old window?

Always wear safety glasses and work gloves to protect against broken glass, debris, and sharp tools. If working on upper floors, ensure you use a stable ladder or scaffolding, and consider having a helper for heavy lifting. Be cautious of lead paint or asbestos in older homes; research proper mitigation or consult a professional if present.

Which tools on the list are absolutely essential for making this project go smoothly, especially for a beginner?

The SPEC OPS Molding Pry Bar and Nail Puller are crucial for efficient and less damaging removal of old trim and nails. A reciprocating saw (like the RIDGID Fuego) is invaluable for quickly cutting out stubborn window frames. Don't underestimate the importance of shims for accurate leveling and squaring, and a good utility knife for flashing tape.

What are the most common mistakes DIYers make during window replacement, and how can I avoid them?

A frequent mistake is failing to ensure the new window is perfectly level and square, leading to operational problems and drafts. Another common error is improper flashing and sealing, which can result in significant water leaks. To avoid these, double-check all measurements before ordering, and use a level and shims meticulously during installation, following manufacturer instructions for sealing.

Transcript

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You're always going to see rot, decay, water damage, both. We're going to show you how to put this in so you're not going to get those problems. And that'll be the key. Now that that's out of the way, you're going to want to have a sozo. If you don't have a sozo or a reciprocator, a fancy word, then you're going to want to go buy one. Okay? $75, $80, corded. It's the way to go. Don't waste $300 on something that needs a battery. It's just not necessary. And they're really not as effective. All right? And cut it right in half down the middle here. And the reason we want to do that is once you've cut one jam, you can start peeling it open like an onion and you'll see that in a minute. I guess it's always best to plug the darn thing into. There we go. All right. Before I get started. You know, okay, fine. Not more of a safety second kind of guy, but in some situations, this actually makes a little bit of sense to put the safety glasses on. Yeah, that looks like we cut through it. All right, enough of those. We're back. So, once you've cut through all that mess, you still got your expansion foam to deal with. Now, generally speaking, it bonds pretty well, but if you just get your hammer in there and you turn it that way, it'll just let go. It's not going to be able to hold on too tight for you. Now, this is a rather modern window. This is a vinyl sash outside with a wooden jam that's been added after the fact. You have a choice when you're ordering windows if you want to get the vinyl extrusion all the way out. If you want that, you need to know the actual dimension to the inside finish. Now, on old houses like this, with the walls are all out of whack and lots of layers going on. And you want to order your windows at a decent time. You don't want to wait till everything's ready for them. And then wait three to six weeks. I usually order them just like this so they can receive a three quarter inch piece of wood. All right. That gives you the ability to customize all the interior jam later. Now, let's see what we got here. I'm thinking there might be a screw. I'm going to take a peek. No. There it is. So, you're going to find that most of these windows are installed with screws in the corners. Let's see if we can pop this crap. There it is. Oh, yeah. There. That's a mounting screw. All right. Probably have one down here. That one already gave up. Let's check over here. There it is. Okay. There we go. Aha. So, aside from the expansion pump, that's usually the…

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