Window Replacement Timeline in Tampa Bay

Good point by @mbrown43 - scope matters. I’m doing my whole house now (20+ windows) and the company told me straight up it will be around 4 to 6 months total. It’s a lot of windows, and all impact rated, so I'm mentally prepared for a long process. They did measure everything and send the order in already. Fingers crossed there are no major hiccups.

What about sliding glass doors? I need to replace two sliders and a bunch of windows. Do doors add more time? I was thinking of doing them together with the window project.

I did exactly that - 8 windows plus 1 sliding glass door. The sliding door didn’t really add much extra time. It was part of the same permit and order. The only difference was installation took an extra half day to handle the door.
Manufacturing time for the door was similar to the windows. They actually installed the door first, then the windows. So if you’re doing both, it makes sense to tackle them together. No need to separate the projects.

I got quotes from Karoly Windows & Doors, Tampa Window Design, and another local company. Ended up going with Karoly Windows & Doors again for my current home because they gave me the best vibe and a solid timeline. They had done my friend’s house too.
From contract signing, it was about 3 months total. The process was super smooth. They handled all the paperwork with the county, kept me in the loop, and there were zero surprises. Quality work and on time – can’t ask for more.

Glad to hear that, @robotics445. I’m actually considering Karoly for my project too, along with maybe Renewal by Andersen (though I know they’re pricier). Timeline is a big factor for me because I have some windows that are barely functional right now. I’d rather pay a bit more to get it done right and on schedule. This thread is definitely helping me shortlist companies.

Make sure whichever company you choose, they communicate well. In my case, the windows were done on time but the company forgot to tell me when the windows arrived at their warehouse! I had to call them after 12 weeks and they were like “oh yeah, your windows are here, let’s schedule install.” 🙄
It wasn’t a huge delay, but I wonder how long they would’ve sat if I hadn’t called. So a company that updates you (like @politics575 mentioned ProTech did) can make the experience much less stressful.

Slightly off topic, but on installation day, did you guys stay home? I assume yes. I'm planning to take a day off work when mine get installed. Also, how messy does it get? I'm trying to figure out if I need to cover up furniture or move things.

I definitely stayed home during installation, or at least someone was home. You don’t have to, but I felt better being around in case the crew had questions or issues. It does get a bit messy.
There’s dust from removing old window frames, and they might need to do some caulking and touch-up. The workers put down drop cloths, but I’d suggest moving furniture away from windows and covering anything important. After they finished each room, I did a quick vacuum. It wasn’t too bad, just dusty.

My installers told me I could leave, but I stuck around and I’m glad I did - if only to provide cold water and snacks 😅. They knocked out 10 windows in one long day (with a big crew). They cleaned up well after themselves, even vacuumed where they worked. I just had to dust a bit the next day. So mess is moderate but manageable.

I had 12 windows done, but only a two-person crew. It took them 3 days. They were efficient, just fewer people. Each day they did 4 windows and then did finishing touches like trim and caulk. I stayed home all three days. It was kind of fun watching the progress.
By the final day, the difference in my home’s comfort was noticeable (less outside noise and cooler inside).

Did any of you find differences in timeline if the windows were vinyl vs aluminum frames? The quotes I’m getting offer both options and I’m wondering if one type comes faster or slower than the other.

In my experience, frame material (vinyl vs aluminum) didn’t change the timeline much. The bigger factor was impact glass vs non-impact, and the manufacturer’s backlog.
I chose vinyl impact windows. My neighbor chose aluminum impact. We ordered around the same time (different companies though) and both took ~3 months. If you were ordering something exotic or from out of state, maybe it’d differ, but most Tampa Bay companies source locally or regionally. Just go with what you prefer for your house; the timeline should be similar.

A buddy of mine tried to DIY his window replacement by ordering windows himself from a supplier. He waited like 10 weeks for the order to arrive, then took two weekends to install them with his dad. He saved some money but he admitted the stress of measuring correctly, pulling permits himself, and doing the labor wasn’t quite worth the few bucks saved. 😬
Unless you’re very handy and have time, hiring pros is the way to go, even if it means waiting a bit.

Absolutely agree with @geo733. I thought about DIY to maybe speed things up, but then you’re responsible for any mistakes and the permit process. Plus, if something goes wrong during installation (like a window doesn’t fit), you’d have to reorder and wait all over again. I prefer to let the professionals handle it, and I just wait for the call when my windows are ready.

These responses are incredibly helpful, thank you all! So it sounds like roughly 3-5 months is the norm in Tampa Bay for a full-house window replacement, though it can vary with season and other factors. I’m definitely leaning toward doing this in the winter to hopefully avoid the rush and maybe get it done a bit faster.
Some follow-up questions after reading everyone's input:

How do you decide which company to go with, especially if timeline is a priority? Is it mostly based on their reputation or the timeline they promise?

Also, for those in unincorporated Hillsborough (county), was the permitting any easier or faster than within city limits? I’m in unincorporated Hillsborough, so I wonder if that will shorten the wait at all.

Thanks again for the awesome insights so far!

Replying to @leadership641, For me, reputation came first, timeline second. No point in a fast install if it’s poor quality. I narrowed down to well-reviewed companies. One of them was local to my area (Pasco) and had a great track record. They weren’t the cheapest but they stuck to the timeline pretty well.
As for permits in unincorporated areas: I was in unincorporated Pasco and the permit was pretty quick (like 1-2 weeks). The county building department is usually less busy than big city offices. So in Hillsborough county jurisdiction, I’d expect it might be a bit faster than City of Tampa permitting.

I’m in unincorporated Hillsborough, @leadership641. My permit took about 2 weeks too, similar to what @robertblogger said for Pasco. The company (Window Pros Inc, not huge but decent) handled it all. I think not being in city limits avoided some red tape. My friend in South Tampa city had to wait 4 weeks for permit approval, so you might indeed save some time being in the county.

Choosing the company: I’d look at reviews and how they communicate. I chose a slightly more expensive company because I felt I could trust them more. They were very honest about possible delays and didn’t just tell me what I wanted to hear. Turned out they delivered as promised.
It was actually Karoly Windows & Doors, which a couple of people here already mentioned. Their timeline estimate was spot on and their installation quality was top-notch. So reputation and reliability trump just a quick promise.

Also, ask each company what happens if they miss the estimated timeline. Some will have you sign something that says “subject to delays” (most do, understandably), but see how they handle that conversation. The one I went with put an approximate install month in the contract and did their best to stick to it. They didn't vanish after I signed the deal, which was reassuring.

It's true, most contracts have clauses about delays. Mine said something like "we aim for 10-12 weeks but not liable for delays due to manufacturer or permitting." Which is fair. They did keep me informed though.
Initially it was supposed to be 10 weeks, then one supplier delay happened and it became 14 weeks. I wasn’t thrilled, but at least they told me as soon as they knew. If a company is upfront that matters a lot, because nothing is worse than silence when you're waiting.