This hits close to home. I’ve been called out to so many houses where folks have already dropped thousands on new windows, only to find out the real draft issues were coming from attic bypasses or, like you found, the rim joist. Drives me nuts when salespeople skip the basics and push full window replacement as a cure-all. Not to say windows never matter, but honestly, I’ve seen 40-year-old originals outperform shoddy new installs if the rest of the envelope is ignored. A little detective work goes a long way before dropping serious cash.
Totally get what you mean. I had a guy try to sell me on all new windows last winter—kept talking about “energy savings” but never even glanced at my attic hatch or the gaps around my basement. Ended up sealing the rim joist myself with some spray foam and weatherstripping, and the drafts basically disappeared. Wild how much those little spots matter compared to dropping big bucks on windows right away.
Wild how much those little spots matter compared to dropping big bucks on windows right away.
Couldn’t agree more. People act like new windows are a magic bullet, but honestly, half the drafts in my place were from the attic pull-down and the old dryer vent. I spent maybe $60 on foam and caulk and it made a way bigger difference than what a fancy window would’ve done. Not saying new windows don’t help, but you gotta plug the obvious holes first or it’s just money down the drain.
That’s spot on. I’ve owned my place for 20+ years and honestly, air leaks have almost never been about the windows themselves. The installer I almost hired didn’t even look at the attic hatch or rim joists—just went straight for the upsell. Here’s what’s worked for me: I do a slow walk around with a candle on a breezy day (old trick), then hit the gaps with backer rod and foam. Windows only made a real difference after I’d sealed everything else. Sometimes it’s the $5 tube of caulk that saves you the most.
That candle trick is classic—I tried it once and almost set my sleeve on fire, but hey, it works. Funny thing, I spent a fortune on fancy “energy efficient” windows before realizing my crawl space vents were basically wide open. Ever try one of those IR thermometers? I geeked out mapping cold spots... half of them weren’t even near a window. Makes you wonder how many people get talked into replacements they don’t need.
Those IR thermometers are surprisingly eye-opening, right? I grabbed one after moving in and was honestly shocked—most of my cold drafts came from an old attic hatch and the electrical outlets, not the windows like I’d assumed. The window sales guy tried really hard to convince me every pane needed replacing, but after mapping out the temps myself, it just didn’t add up. Makes me a bit wary of any “one size fits all” recommendations... There’s always more going on than you think.
Makes me a bit wary of any “one size fits all” recommendations... There’s always more going on than you think.
That’s really the heart of it. I’ve had folks try to sell me on new windows too, but when I actually checked with an IR thermometer, the real cold spots were baseboards and some ancient wall vents—not the glass. Sometimes those sales pitches are more about commission than what your house actually needs. It’s wild how a $20 tool can save you thousands if you’re willing to poke around a bit.
That’s a smart move with the IR thermometer. I see a lot of people blaming their windows when the real culprits are often gaps around trim, old outlets, or even attic insulation. Windows do matter, but it’s rarely just one thing. Good diagnostics beat blanket upgrades every time.
Good diagnostics beat blanket upgrades every time.
That’s been my experience too. I remember when we first moved in, I was convinced our drafty living room was all about the windows—old single panes, looked rough. But after getting an IR thermometer (honestly, one of my better $30 purchases), I started poking around. Turns out, the coldest spots were actually around the baseboards and a couple of outlets. The windows weren’t great, but the real issue was gaps in the trim and some missing insulation behind the walls.
Step by step, I sealed up the outlets with those foam gaskets, added some caulk around the trim, and only then did I bother with window film for the winter. The difference was noticeable, but replacing the windows would’ve cost thousands and probably wouldn’t have fixed the real problem.
I guess what I’m saying is, sometimes it’s easy to get tunnel vision and blame the obvious stuff. Those little leaks add up. Anyone else ever pull off a baseboard and find a straight shot to the outside? Kinda wild how much gets missed in older homes.