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Mr-Glass Window Replacement in Coral Gables: What to Know First
Mr-Glass window replacement in Coral Gables typically means replacing the insulated glass unit (IGU) inside the existing frame, which runs $350-$900 per window depending on size, glass package, and whether the sash needs rebuilding. As an independent Mr-Glass service provider, we’re not the manufacturer, but we work on their products every week and know exactly what holds up in Coral Gables heat and hurricane season. Most Mr-Glass replacements take one to two hours per window once parts are in hand. This page is for Coral Gables homeowners who own Mr-Glass windows, have a fogged or failed unit, a sticky sash, or a seal that’s given up, and want a straight answer about whether to repair or replace. Call (904) 478-8983 and a live person answers, any hour.
How Mr-Glass Products Fail - and How We Fix Them
Not all Mr-Glass windows fail the same way. Here’s what we actually see on jobs across Coral Gables and the surrounding neighborhoods:
- Seal failure on Mr-Glass 9900 Series picture windows. The 9900 series uses a large single IGU, and in Coral Gables the west-facing units take brutal afternoon sun. When the desiccant inside the spacer bar gets saturated, the unit fogs from the inside. That’s not a cleaning problem. The fix is a new IGU with a fresh seal and new spacer, which we order to exact size rather than forcing a generic unit into the frame.
- Balance spring fatigue on Mr-Glass single-hung and double-hung models. After eight to twelve years of daily use in South Florida humidity, the spiral balances inside the jambs lose tension and the sash either won’t stay up or drops hard when released. We replace the balances in pairs and re-set the tension to match the sash weight, so the window operates like it did on day one.
- Hardware corrosion on Mr-Glass casement and awning operators. Salt air travels further inland in Coral Gables than people realize, especially near the golf course and the water. The crank mechanisms and hinge arms on Mr-Glass casement windows corrode and bind. We replace the operator and hinge assembly with corrosion-resistant components, and we lubricate the gear tracks. If the window is original to the home and the hinge arms are pitted, we tell you before we start.
- Weep hole blockage on Mr-Glass sliding doors and sliders. These frames collect debris in the track, and blocked weep holes send water back under the frame. In Coral Gables downpours, that water finds the drywall. We clear the weep channels, verify drainage with a water test, and replace any glazing gaskets that have flattened out and stopped sealing.
- Frame warping on older Mr-Glass vinyl series in full sun exposure. On south-facing elevations, dark vinyl frames absorb enough heat to twist, which pulls the corners of the glass and stresses the seal. We check frame square on every Mr-Glass replacement. If the frame is sound, we put in a new IGU. If the frame has moved beyond spec, we’ll tell you honestly that an insert replacement in a new frame makes more long-term sense than nursing a warped one.
Our Mr-Glass Window Replacement Process
Here’s what a Mr-Glass replacement looks like when you call us in Coral Gables:
- 1
Call or text. A live person answers at (904) 478-8983, 24/7. We get your address, the type of window, and what you’re seeing.
- 2
On-site diagnostic. We identify the failed component and look at the whole window, not just the obvious symptom. If the IGU has failed, we check the frame for square, measure glass thickness, and check the spacer bar type.
- 3
Parts decision. We explain the trade-off between OEM Mr-Glass replacement units and quality aftermarket IGUs that match or exceed the original spec. If your Mr-Glass product is still under manufacturer warranty, we’ll show you how to file the claim and handle the install labor separately.
- 4
The replacement. We remove the failed unit, prep the frame and glazing channel, install the new IGU with fresh sealant, reset any hardware or balances, and reinstall trim.
- 5
Test and verify. We water-test the unit, cycle the sash a dozen times, and check the seals under load. You walk the work with us before we pack up.
- 6
The Done Right Promise. If anything’s off, we come back and make it right. That’s 100 years of accountability, and Ed’s name is on the truck.
What Mr-Glass Window Replacement Costs in Coral Gables
Honest numbers, because vague pricing wastes your time. These are the ranges we quote on Mr-Glass work in Coral Gables:
- Single IGU replacement (fogged seal): $350-$600 per window, depending on size and Low-E coating
- Impact-rated IGU replacement: $500-$900 per window, glass thickness and laminate layer drive the price
- Sash balance or hardware replacement: $120-$250 per window, parts and labor included
- Full-frame Mr-Glass replacement (new insert window): $800-$1,800 per opening, including new frame, trim, and installation
What moves the price: window size, impact versus non-impact glass, Low-E or tinted coatings, frame condition, and whether the window is on a second story requiring ladder work or a lift. We give you a written line-item quote before any work starts, and that number does not change once the job begins. Call (904) 478-8983 for a free estimate, and remember, we’ll do a free second opinion on any written quote you’ve already received.
Why Coral Gables Homeowners Call Winslow Windows & Doors for Mr-Glass Work
We’ve been serving Coral Gables since 2011, and Ed Winslow has been working on window and door systems across this area for over two decades, ever since he picked up the trade at Miami Dade College. Coral Gables homeowners don’t want a national chain with a call center and a rotating cast of subcontractors. They want one company that answers the phone, sends a background-checked technician in a uniform, and stands behind the work for decades. And when a Mr-Glass window is too far gone to make repair worthwhile, we don’t leave you stuck. We’re authorized installers for PGT, CGI, CWS, ES Windows as well. That means we can match the new window to the look of your existing Mr-Glass units or upgrade the whole elevation with impact-rated glass if that’s what makes sense for your home. The one down the road.
FAQs
If your Mr-Glass product is within its manufacturer warranty period, the IGU and some components may be covered. We are an independent Mr-Glass service provider, so we’ll help you determine what the warranty covers and handle the installation labor separately. In many Coral Gables cases, the original installer has gone out of business or won’t return calls, which leaves the homeowner holding a failed window. Call (904) 478-8983 and we’ll tell you exactly where you stand with your specific windows.
Yes. We match the glass thickness, Low-E coating, tint, and spacer bar to your existing Mr-Glass units, so the replacement window doesn’t stand out from its neighbors. If your home’s windows were installed over several years, we photograph and measure each unit to match them correctly, not ballpark it.
It depends on frame condition, not age. If the frame is square, the seals around the frame are sound, and the hardware works, an IGU replacement is usually the best value. If the frame has warped in Coral Gables sun, the weep system has failed, or the sash is structurally weak, a full replacement with a new Mr-Glass-compatible insert or an upgrade to impact-rated PGT or CGI glass makes more sense. We’ll show you the frame condition with you standing right there before you decide anything.
Routine replacements are usually scheduled within a week of the diagnostic visit, and once parts are in hand, most windows take one to two hours each. Larger multi-window jobs are scheduled in phases so you’re never living with a boarded-up opening. Call (904) 478-8983 to get on the schedule.
We work on the full Mr-Glass lineup we encounter in Coral Gables homes, including the 9900 Series, the single-hung and double-hung lines, casement and awning models, and their sliding glass door systems. If a product line has been discontinued and OEM parts are no longer available, we source quality aftermarket components that meet or exceed the original specification. We’ll tell you before we order anything.
Written by Ed Winslow, Owner, Winslow Windows & Doors at Winslow Windows & Doors, serving Coral Gables and nearby areas.
Six Reasons Homeowners Choose Winslow 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.










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