Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Mr-Glass Window Replacement: The Hialeah Owner’s Guide
If you have a Mr-Glass window with a failed insulated glass unit, fogged pane, or broken sash hardware, we can match and replace it. Most Hialeah homeowners pay between $260 and $480 per window for Mr-Glass-compatible glass replacement installed, depending on the size, glass package, and frame condition. We stock common Mr-Glass replacement glass sizes on the truck, and a straightforward single-lite swap is typically done in one visit.
Most owners discover a Mr-Glass unit has failed the same way: they wipe the inside of the glass, and the haze stays. That fog is between the panes, which means the seal has let go. In Hialeah’s humidity, that failure is faster than in dry climates. Moisture gets drawn into the air gap, and once it’s there, the glass cannot be cleaned, only replaced.
Which Mr-Glass Models This Applies To
Mr-Glass windows were installed across a good number of Hialeah homes built in the 1990s and 2000s, primarily as single-hung and horizontal slider units. The insulated glass in these windows is a standard double-pane sealed unit, which means replacement does not require the whole sash or frame. We replace the glass unit itself and leave the existing frame in place.
The critical step is matching the glass thickness and the spacer bar. Mr-Glass units typically run a 7/8-inch overall thickness, but some later series used 1-inch glass. If the replacement is thinner or thicker than the original, the sash clips will not seat, and the unit will rattle in the opening. Dale Kessler’s rule applies here: if the opening isn’t square, nothing else matters. We measure every Mr-Glass sash twice, corner to corner, before ordering the glass. You do not need a Mr-Glass-brand replacement specifically. A quality aftermarket sealed unit with the same dimensions and Low-E coating performs at least as well, and often costs less. TruePane is an independent service provider, not affiliated with Mr-Glass, and we carry OEM-compatible units alongside PGT, CGI, and CWS glass for other window lines on the same service call.
Signs Your Mr-Glass Window Replacement Is Failing
- Fog or haze between the panes. This is the seal failure every Hialeah homeowner recognizes. The desiccant inside the spacer has gone saturated, and the moisture cannot escape until the glass is replaced.
- Condensation on the inside of the glass in the morning. If you wake up to water droplets inside the airspace, the unit has lost its argon fill. The window will keep working structurally, but it has lost its insulation value.
- Sash that drags or binds when you slide it. Mr-Glass sashes ride on nylon rollers that wear into a flat spot after years of South Florida humidity and salt air. When the roller fails, the sash tilts, and the glass becomes the load-bearing point.
- A seal or gasket that has turned brittle or cracked. This is the first thing that fails on Mr-Glass horizontal sliders. Once the exterior gasket cracks, water works in, the frame swells, and the glass unit starts moving in the sash.
- Glass that flexes visibly when you press it. A sealed unit should feel solid. If the pane bows under light pressure, the units has lost its internal gas pressure and is no longer doing its job.
Each of these has one underlying cause, and none of them gets better with age. A failed seal in Miami-Dade means a window that fogs in July, drafts in February, and drives your cooling bill up month after month.
Replacement Cost & What’s Included
Mr-Glass-compatible replacement glass in Hialeah usually runs $260 to $480 per unit installed. The spread depends mostly on glass size. Units under 30 inches by 50 inches sit at the low end. Larger sliders, or units with extreme Low-E coatings for west-facing walls, sit at the top.
Our price includes removing the old sash, cleaning the frame channel, measuring the opening twice, installing the new sealed unit, and taking the failed glass with us. You get a written line-item quote before any work starts, so the bill matches the quote. The work carries our Done Right Promise. If the new unit fails within that window, we replace it and re-install it, no arguing, no paperwork fights. Both manufacturer warranty layers are registered in writing before our truck leaves your driveway, per The Keystone Standard. Seniors and veterans get 5% off every job, and any repair over $250 qualifies for $50 off.
Call (386) 977-5410 for a firm quote over the phone. You’ll talk to a living person, not a voicemail tree.
DIY or Call Us?
What you can safely check on your own is simple. Look for the symptoms above and take a photo of the failed unit with a tape measure laid across the glass. That photo and those measurements help us quote the job accurately before we even arrive. You can also check whether the window is a single-hung or a slider, and whether the frame is vinyl or aluminum, because that tells us which Mr-Glass series you have.
What you should not do is attempt to remove the sash and replace the glass yourself. Mr-Glass sashes in Hialeah are often aluminum, and a seal that has held for two decades has become a tightly bonded assembly. Forcing it free without the right glazing chisels and suction cups usually ends with a bent sash or a cracked pane, and then you are paying for a whole new window rather than just the glass. If the sash has a high-tension spiral balance, getting the tension wrong can send the frame flying when you release the last retainer. That is not a warning we give lightly. It is the exact reason we send a uniformed, background-checked technician with the right tools and the right experience. We are glad to walk you through the diagnosis on the phone, and then do the work the right way. Call (386) 977-5410.
FAQs
A well-installed Mr-Glass sealed unit in South Florida typically lasts 15 to 22 years, but Hialeah’s humidity and salt air put genuine stress on the seals. Units facing the afternoon sun, especially on west exterior walls, tend to fail on the early side of that range. If you are seeing fog at year 14, you are not unlucky; you are average for this climate. Call (386) 977-5410 and we’ll come measure it.
A fogged sealed unit cannot be cleaned or re-sealed in place. The moisture is trapped between the panes, and the only real fix is to remove the old unit and install a new sealed glass package. Some companies offer a “defogging” service, but it does not restore the argon fill or the Low-E coating, and it often makes the haze worse inside two years. Replacement is the honest fix, and it typically costs less than people expect.
A standard single-lite replacement takes one visit, usually 45 minutes to 90 minutes from unload to clean-up. We pull the sash, swap the glass, re-set the sash, and test for square before we leave. If you have multiple Mr-Glass windows failing at once, we work through the whole list in the same appointment. Call (386) 977-5410 for a straight answer on timing for your specific job.
We keep the most common Mr-Glass sealed unit sizes on the truck along with PGT, CGI, and CWS glass for other local window lines, so many Hialeah jobs are completed the first visit. If you have an unusual size or a non-standard glass thickness, we order from our glass supplier and are back within days to finish the job. Either way, you get a firm price before we order anything.
Written by Dale Kessler, Owner, TruePane Windows & Doors at TruePane Windows & Doors, serving Hialeah and nearby areas.
Six Reasons Homeowners Choose TruePane Windows & Doors
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.



Before
After
Before
After
Before
After