You look out the window one morning and the view is hazy. You wipe the glass inside, then go outside and wipe it again, and it’s still cloudy. If that sounds familiar, the haze isn’t on your window. It’s inside it.
Foggy windows are one of the most common calls we get from homeowners around Clearwater, St. Petersburg, Largo and the rest of Pinellas County. The good news is that a foggy window doesn’t automatically mean you need a new window. Here’s what’s going on, what your options are, and how to decide.
Why double-pane windows fog up
Most newer Florida homes have double-pane (also called thermal pane or insulated) windows. Each one is really two panes of glass with a sealed space between them. As long as the seal holds, the space stays dry and the glass stays clear.
When the seal fails, humid outside air gets into that space. Moisture condenses on the inside surfaces of the glass, and over time it can leave a milky film or streaks that you can’t reach. That’s why wiping doesn’t help: the moisture is trapped between the panes.
Florida’s heat, strong sun and year-round humidity are hard on window seals, so it’s no surprise that foggy glass shows up in homes all over Tampa Bay. A failed seal can also let air leak through, which is one more reason not to ignore it. In our climate, air and water leaks around windows can lead to mold and warped frames.
Option 1: Replace just the glass
In many cases, the frame, the sashes and the hardware are still in good shape. Only the sealed glass unit has failed. When that’s true, we can replace the glass and leave the rest of the window alone.
Replacing just the glass:
- keeps your existing frame, so there’s no tearing out and re-finishing around the window;
- restores a clear view;
- works for single-hung, double-hung, casement, awning and jalousie windows, and for sliding glass doors;
- can be done with double (thermal) pane glass or hurricane impact glass, depending on what your window needs.
Our approach has always been to look at repairing a window before recommending a new one. Double-pane windows are treated first, before we suggest replacement. You can read more about how we handle this on our window glass repair page.
Option 2: Replace the whole window
Sometimes new glass isn’t the right answer. Replacing the window may make more sense when:
- the frame is damaged, warped or rotted, so new glass wouldn’t seal properly;
- the hardware is failing too, and the window won’t open, close or lock even after repairs;
- several things are wrong at once, and fixing them one by one would cost more than it’s worth;
- you want something different, like a different window style or impact glass throughout.
If that’s where your window is, we’ll tell you plainly and talk you through it. Window replacement is part of what we do, but we won’t recommend it when a repair will do the job. See our window glass replacement page for the kinds of glass and windows we work on.
How to tell which one you need
You can get a rough idea yourself before you call:
- Look at the frame. Is it straight and solid, or cracked, soft or warped?
- Try the window. Does it open, close and lock the way it should?
- Check for water. Do you see staining, peeling paint or dampness around the window after rain?
- Count the problem windows. Is it one foggy pane, or most of the windows on one side of the house?
If the frame is sound and the window works, the glass is very likely the only issue. If you’re seeing frame damage or water stains, it’s worth having someone look before you decide. Some problems are obvious, but others need an expert eye.
What about “defogging” the glass?
You may see ads for cleaning out foggy windows. Because the cause is a failed seal, the question to ask is whether the seal itself is being fixed. If it isn’t, the moisture has a way back in. Replacing the sealed glass unit addresses the actual cause. If you’re unsure, ask us and we’ll explain what we’d recommend for your window.
Does it matter how fast I deal with it?
A foggy window isn’t an emergency the way a broken one is. Still, a failed seal can let air and moisture through, and in a humid place like West Central Florida, that’s worth dealing with before it turns into mold or frame damage. It also tends to get harder to see through over time.
How much does it cost?
Honestly, it depends: on the size of the glass, whether it’s standard insulated glass or hurricane impact glass, the type of window, and how many windows need work. That’s why we don’t publish one-size-fits-all prices. The fastest way to an accurate number is to show us the window.
Get a quote for your foggy windows
Sailer Window Repairs has been fixing windows in Pinellas County since Arthur Sailer founded the company in Clearwater in 1968, and we’re still family-owned today. We serve all of Pinellas County and western Hillsborough, including west Tampa, Westchase and Town ‘n’ Country.
Call (727) 447-4250 (Monday to Friday, 7am to 5pm), or send us a quote request and add a few photos straight from your phone. A close-up of the foggy glass and a shot of the whole window help us quote faster. For other window problems, like sticking sashes or broken locks, see our window repair page.