@blazec89 I've used interior storm window inserts (the acrylic panels with magnetic frames) in my previous home (an old bungalow in Tampa Heights). They actually helped more than I expected. They cut down on drafts and noise, and made the single-pane windows perform more like double-pane.
However, they are not as convenient as real double-pane windows. You have to remove them to open the windows, and in humid Florida weather, sometimes a bit of condensation would form between the panel and the window (not a lot, but occasionally on cold days). But overall, for a historic home where you can't change windows, it's a decent compromise.
They won't match the performance of proper new windows (no Low-E coating usually, and not as air-tight as a new window install). But if replacement isn't an option, they can improve comfort noticeably. Plus, they are removable, so they typically satisfy historic district rules.
In my case, it made our living room much more comfortable in summer. Just manage expectations: it's an improvement, not a full solution. If you can eventually get permission to use something like wood replacement windows with Low-E glass, that would be ideal. But interior storms are a good stopgap (or even long-term solution) to boost efficiency in the meantime.
Has anyone dealt with NewSouth Window Solutions? They advertise heavily about windows "made for Florida". I got a quote from them and it seemed pretty high. Are their windows actually better, or are we just paying for marketing?
@shadowthomas36 I got a quote from NewSouth too. Their product is decent (vinyl impact windows with Low-E), but I found them overpriced. They have a nice factory showroom and a big marketing presence, which I think contributes to the cost. I ended up going with a smaller local company (with PGT windows) for significantly less money.
From what I saw, NewSouth's windows are fine performance-wise (the models they showed met Energy Star and hurricane codes), but not necessarily better than other top brands. They do have a lifetime warranty, which is nice. If budget isn't an issue, they could be convenient (one-stop shop). But if you're price-sensitive, you can likely get comparable windows for less.
Just my two cents: we didn't feel NewSouth was worth the premium.
Another tip: whatever brand you choose, make sure to get the NFRC sticker data and documentation. Some sales reps make exaggerated claims ("30% off your bill!" etc.). Focus on the actual ratings (U-factor, SHGC) and warranty details instead of sales hype. That way you can compare apples to apples. It helped me cut through the marketing noise when choosing my windows.
This discussion has been incredibly informative. Thank you all for sharing your knowledge!
Following this thread for my own upcoming window project. Glad I found it!
So much good advice here. It's answered questions I didn't even know I had!
New homeowner in St. Pete here, taking notes like crazy. Thanks everyone!
As someone who’s been lurking and absorbing all this info, I just want to say thanks to everyone. I'm in Tampa Bay too (Pasco County) and this thread has basically answered all the questions I had and then some. I'll be doing my window replacement in a few months and will definitely refer back here. Big thanks to @jmartin52 for starting the convo and to all who contributed such detailed insights!
Hear, hear! I second that. I'm in the research phase (in Brandon, FL) and this thread has been gold. From technical specs to real-world experiences, it's got everything. Thanks folks - this is why I love this community.