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Mr-Glass Home Additions & ADU: The Boca Raton Owner’s Guide
Mr-Glass-compatible home additions and ADU components in Boca Raton typically run $45,000-$130,000 for full additions and $90,000-$220,000 for detached ADU construction, with Mr-Glass glazing systems, structural connectors, and weather-sealing assemblies available for assessment within 24-48 hours of your call. Most Boca Raton owners discover a Mr-Glass system is failing when they spot condensation between panes in the conditioned envelope, feel drafts where the addition meets the existing structure, or notice the aluminum thermal break frames showing corrosion along the coastal exposure. In our experience near Spanish River Boulevard and along A1A, the salt air accelerates seal degradation by roughly 30% compared to inland Palm Beach County installations.
Which Mr-Glass Models This Applies To
Mr-Glass produces several product lines relevant to home additions and ADU construction, and matching the right component matters for both code compliance and thermal performance. The Mr-Glass 500 Series fixed and operable units are common in Boca Raton additions from the 2015-2020 building cycle; check the etched logo in the lower corner of the glass and the stamped code on the frame edge for the series designation. The Mr-Glass 700 Series thermal-break aluminum frames are heavier-duty, typically found in two-story additions where structural loading is higher, and use a distinct 2-5/16″ frame depth versus the 500 Series’ 1-3/4″.
We also see the Mr-Glass ProLine in commercial-to-residential conversions near Mizner Park, where the original build-out used storefront glazing adapted for living space. The ProLine uses a different glazing bead profile, so replacement gaskets and stops are not interchangeable with residential series. For hardware, Mr-Glass sources from Truth and Hoppe for operators and locks; we stock both OEM and quality aftermarket equivalents from Amesbury and Caldwell, matching the exact backset and strike plate geometry. If your unit has a NFRC label still intact, photograph it before calling - the U-factor and SHGC numbers determine whether a direct replacement meets current Florida Energy Code for new square footage.
Signs Your Mr-Glass Home Additions & ADU Is Failing

- Fogging or condensation between panes means the insulated glass unit (IGU) seal has failed, allowing moist Boca Raton air into the spacer cavity. Once the desiccant in the spacer is saturated, the clouding is permanent and the thermal performance drops to that of single-pane glass.
- Drafts around frame perimeters usually trace to degraded compression seals or backer rod that has shrunk in the Florida heat. The gap may be invisible; hold a lit incense stick near the frame on a breezy day and watch for smoke disturbance.
- Difficulty operating windows or doors often indicates corrosion in the balance mechanism (for hung units) or settlement in the addition’s foundation shifting the frame out of square. In Boca Raton’s sandy soils, even minor differential settlement binds the sash against the frame.
- Water staining on interior drywall below window heads points to failed end-dam flashing or missing sealant at the head jamb. Mr-Glass units rely on proper integration with the rough opening waterproofing; if the subsill was not bedded correctly during the original addition build, water tracks behind the exterior trim.
- Chalking or pitting on aluminum frames is the salt-air signature we see within three miles of the Intracoastal. The anodized finish breaks down, exposing raw aluminum to galvanic corrosion where it contacts dissimilar metals like the steel fasteners used by some installers.
Before
AfterReplacement Cost & What’s Included
For Mr-Glass component replacement within an existing addition or ADU in Boca Raton, expect $2,000-$6,500 for isolated window or door unit replacement, $8,000-$25,000 for full impact window upgrades in the addition envelope, and $45,000-$130,000 for structural reconfiguration where the glazing system is integrated with load-bearing walls. The range reflects unit size, impact rating requirements for HVHZ compliance, and whether the original rough opening needs reframing to accommodate current code.
Our written quote itemizes: the Mr-Glass or equivalent unit cost, installation labor including removal and disposal, permit fees for Boca Raton Building Division, and any rough-opening repair or flashing integration required. Under Clause 1 of the Haven Standard, that price is fixed before work starts; no change proceeds without a signed change order. Every installation carries our 365-Day Done Right Promise, and you receive a documented photo record of the opening condition, the installed unit, and the final sealant application.
DIY or Call Us?

An owner can safely inspect for the symptoms above and photograph labels and damage for our review. What we do not recommend: removing a fixed or operable unit yourself, especially in an impact-rated assembly where the fastening pattern and sealant bead are part of the structural design. The HVHZ (High Velocity Hurricane Zone) installation standards for Boca Raton require specific anchor spacing, sill pan integration, and perimeter sealant thickness that are not intuitive from visual inspection alone.
Improperly installed, a replacement unit leaks air and water, and may void your windstorm insurance coverage if documentation is challenged post-hurricane. We measure twice, document everything, then build - and that documentation includes the permit application, inspection sign-off, and photo record you need for your file. Call (754) 254-8065 to schedule your free estimate; we’ll review what you have, what it needs, and what it costs before any work starts.
FAQs
IGU seals typically fail in 12-18 years within three miles of salt water, compared to 20-25 years inland; frame finishes last 15-20 years with proper anodizing. Call (754) 254-8065 for an exact quote on replacement - estimates are free.
Defogging services exist but do not restore the original U-factor or argon fill; for conditioned additions, full IGU replacement is the only repair that returns rated thermal performance. Call (754) 254-8065 for an exact quote - estimates are free.
A single window or door replacement in an existing addition typically takes one day; full-envelope replacement in a larger addition runs 3-5 days, plus Boca Raton Building Division inspection scheduling. Call (754) 254-8065 for an exact quote - estimates are free.
We stock common gaskets, hardware, and sealants; full units are ordered to spec with 2-3 week lead times for non-impact glass and 4-6 weeks for HVHZ-rated assemblies. Call (754) 254-8065 for an exact quote - estimates are free.
Written by Grant Rowan, Owner, Rowan Construction Group Boca Raton at Rowan Construction Group Boca Raton, serving Boca Raton and nearby areas.







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