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Mr-Glass Home Additions & ADU: The San Jose Owner’s Guide
We stock and install Mr-Glass-compatible home addition and ADU components across San Jose at an installed range of $53,100 to $153,400, depending on your existing footprint, foundation work, and the part itself. Most San Jose owners discover a failed component not through a catastrophic event, but through a slow signal: a door that won’t close square after a rain, a corner gap opening where the addition meets the original structure, or a floor that reads out of level with a 6-foot spirit. The part is rarely the whole story. The substrate, the connection detail, and the way the original Mr-Glass unit was flashed all determine whether you’re looking at a component swap or something deeper.
Which Mr-Glass Models This Applies To
Mr-Glass components in San Jose additions and ADUs tend to surface in three configurations: glazed corner units, fixed side-lite assemblies, and operable wall sections that tie into post-and-beam framing. The compatibility gotcha most homeowners run into is the glass-to-frame dimension. Mr-Glass units are frequently specified in 1/4-inch or 3/8-inch glazing with a matching frame channel, and mixing a 3/8-inch lite into a 1/4-inch channel is a guaranteed leak path. We measure the channel, the setback, and the weep pattern before we order or cut anything. OEM replacement is the clean route when the original frame is sound; a quality aftermarket equivalent makes sense when the frame itself has gone, but only if the thermal spec matches the original. In San Jose’s dry-wet cycling, a mismatched thermal break will show condensation inside the unit within a season.
Styles & brands we work with
Signs Your Mr-Glass Home Additions & ADU Is Failing
- Fogging between panes. The seal has failed and the desiccant inside the spacer is saturated. This is not a cleaning problem; it’s a replacement problem. Once moisture is in the airspace, the unit’s insulation value drops and the glass becomes a permanent haze.
- Binding at the threshold or header. The addition has settled and the Mr-Glass frame is now carrying load it wasn’t meant to. A binding unit is the first warning that the structural connection between original structure and addition needs a look, not just a new part.
- Water staining on the interior sill or drywall below. The weep system is clogged or the flashing has separated. In San Jose’s winter rain, this shows up as a faint tan line along the bottom edge. Left alone, it rots the rough opening.
- Draft you can feel with the unit closed. The weatherstripping or the frame seal is gone. In a San Jose summer, the draft is easy to miss. In January, it’s obvious. Either way, you’re heating or cooling the outside.
- Cracked or chipped glass at the corner. Corner chips mean the unit took a point load, usually from a settling header or a racked frame. The crack won’t stop at the chip; it’ll run diagonal through the lite within months.
See the difference
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After
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AfterReplacement Cost & What’s Included
In San Jose, a Mr-Glass-compatible replacement runs from $53,100 on the low end, where you’re swapping a component and making good the surrounding trim, to $153,400 on a full-scale addition or ADU rework that pulls the old unit, addresses the framing and flashing, and re-installs with a matched part. The spread is driven by access, whether we’re cutting out stucco or siding to reach the frame, the glazing spec, and whether the structural connection needs repair. Every job gets a written price before work starts. That’s the Garrison Standard, and we don’t move numbers at the door. The work is covered by our 365-Day Done Right Promise: if the install fails inside a year, we return and correct it at no charge.
DIY or Call Us?
You can safely check the weep holes with a small wire and look for daylight gaps at the weatherstripping. That’s about where the safe zone ends for a glazed Mr-Glass unit in an addition or ADU. Glass under typical San Jose wind and seismic loads is not forgiving, and the moment you’re touching the frame or the flashing, you’re into structural territory where a bad install means water behind the wall. The part itself may be heavy enough to need a two-man set and glass cups, and the connection detail to the original structure is where most DIY repairs go wrong. If you’re unsure, call (669) 272-2637 and we’ll walk you through what we’d look at before you commit to anything.
FAQs
A properly installed Mr-Glass component in San Jose typically holds its seal and operation for 15 to 20 years before thermal or structural movement starts to show. The Bay Area’s dry-wet cycling shortens that if the flashing was marginal from the start. Call (669) 272-2637 for an exact assessment, and we’ll give you a written price.
Fogged glass cannot be repaired; the sealed unit is spent and must be swapped. Binding frames can sometimes be corrected by addressing the settlement, but the component itself usually needs to come out to do that right. Call us at (669) 272-2637 and we’ll tell you which side of that line your unit falls on.
A straight component swap usually takes one to two working days in San Jose, including site cleanup. If the rough opening or structural connection needs repair, the job stretches to a week or more depending on what we find. We’ll give you a written timeline with the written price, so the schedule is part of the deal.
We stock common Mr-Glass channel, weatherstripping, and glazing specs on the truck, and order the exact unit when we’ve confirmed your measurements. We’re an independent service provider, not affiliated with Mr-Glass, but we work with their dimensions and specs every week. Call (669) 272-2637 and we’ll check stock before you wait.
Written by Curtis Lane, Owner, Bradford Remodeling Co at Bradford Remodeling Co San Jose, serving San Jose and nearby areas.
