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Get your free estimateMr-Glass Window Replacement: The Tampa Owner’s Guide
We stock and install Mr-Glass window replacement parts across Tampa, with most common sash replacements running $240 – $520 per window installed, depending on the series and glass package. If your Mr-Glass window won’t lock, fogs between the panes, or the sash won’t stay up, we can usually diagnose it on the first visit and complete the swap the same day. Most homeowners discover the failure the way Tampa finds out about a summer storm: suddenly. A window that worked fine all winter starts binding in June when the humidity climbs, or a seal that looked fine in January shows condensation by April.
Keith Yamada and our crew have seen enough Mr-Glass units in Tampa’s older neighborhoods to know these windows are worth saving. The frame is often still solid when a balance, latch, or glass unit fails, and replacing just the failed part costs a fraction of a full window tear-out. We’re an independent Tampa installer, not affiliated with Mr-Glass, which means we stock compatible parts and give you an honest read on whether a repair makes sense before we quote a replacement.
Key Takeaways
- Mr-Glass window replacement in Tampa typically costs $240 – $520 per window installed
- We stock common Mr-Glass balances, latches, rollers, and sealed glass units
- Same-day replacement is usually possible once we confirm the series and measurements
- Every job includes a written price before work starts, no exceptions
- 365-Day Done Right Promise covers the finished work
Which Mr-Glass Models This Applies To
Mr-Glass produced several window lines over the years, and the replacement parts are not one-size-fits-all. The most common units we see in Tampa are single-hung and horizontal sliders from the 600 and 800 series, along with a number of casement windows installed in homes built from the mid-1990s through the early 2010s. Each series uses specific balance lengths, latch styles, and glass thicknesses, and mixing them up is where most DIY repairs go sideways.
The fastest way to identify what you have is to look for the label etched in the corner of the glass or on the frame spacer between the panes. It typically includes a manufacturing code and sometimes the series number. If the label has worn off, we measure the visible glass width and thickness, plus the sash height and the balance channel length. Those four measurements narrow it down fast. For sealed glass units, the spacer color and thickness matter: Mr-Glass units from this era commonly used a 5/8-inch or 3/4-inch aluminum spacer, and we match that exactly so a new unit sits flush in the existing sash. On the OEM-versus-aftermarket question, we stock both. Some Mr-Glass latches and balances are still available through specialty suppliers as original or direct-fit parts; where they’re not, we use quality aftermarket equivalents that match the load rating and travel length. We’ll tell you which one we’re quoting and why, because the wrong balance spring turns a $40 part into a window that slams shut on someone’s fingers.
Styles & brands we work with









Signs Your Mr-Glass Window Replacement Is Failing
- Fog or condensation between the panes. The seal around the insulated glass unit has failed, letting Tampa humidity inside the air space. Once that happens, the glass won’t clear on its own, and the window loses most of its insulating value.
- The sash won’t stay up or closes too fast. The spring balance inside the side channel has lost tension or snapped. On Mr-Glass single-hungs, this is the most common failure we see after ten to fifteen years of daily use.
- The lock won’t engage or feels loose. The latch keeper has worn or the sash has settled slightly out of alignment. It’s a security issue, but usually a simple part swap rather than a full window replacement.
- You can feel air moving around the closed sash. The weatherstripping has compressed with age and Florida heat. Replacing it restores the seal, keeps cooled air in, and cuts the summer power bill.
- The window sticks or grinds when you open it. The roller assembly on a slider, or the pivot shoe on a hung window, has worn flat or picked up grit. Forcing it only scores the track and makes the eventual repair more involved.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
In Tampa, expect to pay between $240 and $520 per Mr-Glass window for a complete installed replacement, with most single-hung or slider jobs landing around $300 – $380. Simple latch or weatherstripping swaps run $85 – $150 including the part and the service call. Sealed glass unit replacements for Mr-Glass sashes typically fall between $180 and $320 per unit depending on size, glass type, and whether the window has any low-E or tinted coating that needs matching.
| Replacement Type | Installed Price Range, Tampa |
|---|---|
| Latch, keeper, or weatherstripping replacement | $85 – $150 |
| Sealed glass unit (insulated, standard clear) | $180 – $320 |
| Balance or roller assembly replacement | $140 – $240 |
| Full Mr-Glass sash replacement, installed | $240 – $520 |
The price we quote is the price you pay. We write it down before any work starts, as a standing rule, with the part cost and labor separated so you can see exactly where the money goes. No change orders, no surprise at the end of the day. The work is backed by our 365-Day Done Right Promise: if the finished window isn’t right, we make it right. That’s not a one-time courtesy; it’s stamped on every job we do in Tampa, not just the easy ones.
DIY or Call Us?
There are a few things an owner can safely check: confirm the window is fully closed before testing the lock, look for a label etched in the glass corner, and wipe down the track if it’s grinding. That’s useful information to have ready when you call. What we don’t recommend is pulling the sash out to replace a balance on your own. The spring inside a Mr-Glass balance channel is under tension, and a slip at the wrong moment can put a hand through the glass or send a sash into a wall. The latch and weatherstripping are gentler work, but even there, matching the exact profile matters more than most people expect.
If the window is fogged, stuck, or slamming, call us at (850) 360-6785. We’ll ask about the symptoms, schedule a visit, and give you a written quote before we touch anything. You’ll know the price before the work starts, and you’ll come home to a window that opens like it should.
FAQs
Most Mr-Glass windows in Tampa hold up well for fifteen to twenty years, but the moving parts like balances and latches typically need attention between years ten and fifteen. Sealed glass units can fail sooner if the window faces direct afternoon sun or sits close to salt air along the bay.
Call (850) 360-6785 and we’ll tell you honestly whether a repair or a full replacement makes better sense for your specific windows.
Yes, in most cases we can replace just the sealed glass unit inside the existing sash, which costs less than a whole new window. The sash frame stays in place, we pull the old glass unit out, and a new one goes in with fresh sealant.
Call (850) 360-6785 for an exact quote on your Mr-Glass window, estimates are free.
A single sash or sealed glass unit replacement usually takes sixty to ninety minutes on site once the part is in hand. If we have the correct part on the truck, the whole job is often done in one visit.
Call (850) 360-6785 and we’ll give you a time estimate for your specific windows.
We keep common Mr-Glass balances, latches, rollers, and standard-sized sealed glass units stocked on our trucks for most Tampa service calls. Specialty glass packages or unusual sizes may take a few days to source, and we’ll tell you that before you commit to anything.
Call (850) 360-6785 with your window label information and we can usually tell you over the phone whether your part is a same-day fix.
Lightwell Windows Tampa also stocks compatible parts for PGT, CGI, and CWS windows, so if you have a mixed house of Mr-Glass and another brand, we can handle the whole list in one visit. A light well is what brings daylight deep into a building. Keith Yamada would add: light belongs inside the room, and we’re here to figure out what’s keeping it out.
Call (850) 360-6785 for a free estimate on your Mr-Glass window replacement in Tampa. Shoe covers on every visit, a written price before any work starts, and a live person on the phone when you call.
Written by Keith Yamada, Owner, Lightwell Windows Tampa at Lightwell Windows Tampa, serving Tampa and nearby areas.
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