Mr-Glass Home Additions & ADU Nationwide

Mr-Glass Home Additions & ADU: The West Palm Beach Owner’s Guide

We stock and install Mr-Glass-compatible systems for home additions and ADU projects across West Palm Beach, with typical installed pricing running $45,000-$130,000 for additions and $90,000-$220,000 for full ADU construction. Most Mr-Glass window and door systems we encounter are original to 2015-2022 builds in neighborhoods like Flamingo Park and El Cid, where coastal humidity and salt air have started degrading the thermal seals and hardware. You’ll usually notice the failure first as condensation between panes, sticking rollers, or frames that have shifted slightly out of square after Florida’s wet seasons.

Call (561) 475-3903

Which Mr-Glass Models This Applies To

Mr-Glass manufactured several product lines for the Florida residential market, and identifying yours correctly determines whether we can match existing sight lines or need to reframe the opening. The most common we see in West Palm Beach are the MG-2000 series sliding patio doors, MG-3500 impact-rated windows, and the MG-5000 multi-slide systems used in larger additions along Flagler Drive and South Olive.

Check the etched mark in the glass corner or the sticker on the frame edge for a model prefix and date code. The MG-3500, for instance, uses a 2-5/8″ frame depth that differs from the 3-1/4″ MG-5000, a mismatch that will throw off interior trim and exterior stucco reveals if not caught during quoting. We source OEM Mr-Glass hardware and seals through our distributor network, though for discontinued series we often specify Quanex or Amesbury aftermarket equivalents that meet the same DP-50 pressure rating without the OEM markup. The decision hinges on whether your project is a single-unit replacement or a full opening reconfiguration where matching existing profiles matters less than structural performance.

Signs Your Mr-Glass Home Additions & ADU Is Failing

• Condensation between panes. The insulated glass unit’s edge seal has failed, allowing moist Florida air to enter the airspace. Once the desiccant saturates, the fogging becomes permanent and the unit’s R-value drops by roughly half.
• Difficulty rolling or latching. The tandem roller assembly in MG-2000 and MG-5000 doors collects grit and corrosion from salt air, or the nylon wheels flat-spot under the weight of heavy laminated glass. The door feels heavier and eventually skips off track.
• Frame corners separating or bowing. Thermal expansion cycles in unshaded south-facing openings stress the vinyl or aluminum corners; in West Palm Beach, dark-colored frames on lakefront homes absorb enough heat to accelerate this.
• Water staining at the sill or drywall below. The weep holes are clogged with debris, or the sill pan flashing was omitted during original installation, a detail we find missing in roughly thirty percent of the additions we inspect near downtown.
• Visible delamination of impact film. On laminated impact units, the interlayer separates from the glass, creating a cloudy iridescent patch. The impact rating is compromised, which affects your wind mitigation report and insurance discount.

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Replacement Cost & What’s Included

What drives the range: unit size, impact rating required by your specific wind zone, whether the original flashed opening is intact, and interior/exterior finish repair scope. Our quote includes the unit, installation, perimeter sealant, trim repair, and disposal. Under Clause 1 of the Haven Standard, you receive that price in writing before we order material, and no change proceeds without a signed change order. The 365-Day Done Right Promise covers installation and hardware; glass defects fall to the manufacturer’s warranty, which we register on your behalf.

DIY or Call Us?

An owner can safely inspect: weep holes for debris, weatherstrip condition, and whether the door still seats square in the frame with a flashlight check for gaps. Do not attempt to remove an impact-rated unit yourself. These weigh 8-12 pounds per square foot, a 6×8 patio door can exceed 400 pounds, and the tempered or laminated glass requires specific handling to prevent edge damage that causes spontaneous fracture later. The structural fastening pattern and Florida Product Approval documentation must match for code compliance, something the typical hardware store cannot verify.

We carry common MG-2000 and MG-3500 hardware on our trucks, and our distributor stocks units for next-day pull in most cases. Call (561) 475-3903 to schedule your free estimate. We’ll measure the opening, identify your series from the markings, and give you a written price with a photo record of what we found.

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