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Mr-Glass Home Additions & ADU: The San Diego Owner's Guide
If you have a Mr-Glass home addition or ADU component that has failed, we stock and install the replacement parts here in San Diego. A full Mr-Glass home addition in this market typically runs $53,100 to $153,400, while ADU construction on a Mr-Glass foundation or frame starts at $106,200 and can reach $259,600 depending on size and site conditions. Most owners discover a failing part not through catastrophic collapse, but through a slow, quiet shift: a door that suddenly drags against its frame, a window that will not seat, or a seam that has opened half an inch where it used to be flush.
Our team at Mason Remodeling Co San Diego works on Mr-Glass-compatible additions and ADUs regularly. We are an independent service provider, not affiliated with Mr-Glass, which means we give you straight answers about what a repair is worth, whether the original part should be reused, and when it makes more sense to replace a section rather than patch it.
Which Mr-Glass Models This Applies To
Mr-Glass home addition and ADU components are not one-size-fits-all. The brand has used different frame profiles, glass thicknesses, and connector hardware across its product generations, and matching the right part starts with knowing which generation you are dealing with. The fastest way to identify yours is to look for the small metal tag riveted to the lower corner of the exterior frame or on the header above the main entry. The serial number prefix tells us the series: older Mr-Glass frames used a rolled-aluminum profile with a 1-1/4 inch glass channel, while newer residential ADU kits moved to a 1-3/4 inch thermal-break profile that accepts double-glazed panels up to 24mm thick.
Here is the compatibility gotcha we see most often in San Diego: homeowners assume any Mr-Glass part fits any Mr-Glass unit. It does not. The corner connectors, mullion brackets, and door rollers changed between series, and forcing an older connector into a newer channel is how glass gets chipped and frames get twisted. We also stock quality aftermarket equivalents from Cambria and Silestone for counter and surface components that integrate with Mr-Glass frames, plus KraftMaid cabinetry where built-ins are involved. For most structural connections, OEM is the safer call. For non-structural glazing and trim, a good aftermarket part often performs identically for 30% less.
Styles & brands we work with
Signs Your Mr-Glass Home Additions & ADU Is Failing
- Doors that scrape, stick, or refuse to latch. This usually means the rollers have worn flat or the frame has settled out of square. Left alone, the door weight transfers to the glass edge, and that is when panels crack.
- Condensation trapped between glass panes. The thermal seal has failed. In San Diego's coastal air, a failed seal also invites salt-driven corrosion into the frame channel, which compounds the problem quickly.
- Visible gaps at corner joints or where glass meets frame. The corner connectors or setting blocks have shifted. Water gets in, and once water sits in an aluminum channel, the corrosion cycle starts.
- Hard water staining that will not clean off. This is surface-level but worth noting: once glass is etched by San Diego's hard water, no cleaner reverses it. Treatment or panel replacement are the only real fixes.
- A soft, spongy feel underfoot near the addition's threshold. That is subfloor or sill damage from water intrusion, and it means the failing part has already let moisture past the seal.
Replacement Cost & What's Included
In San Diego, Mr-Glass home addition and ADU replacements land between $53,100 and $153,400 when we are talking about a full addition, and $106,200 to $259,600 for a complete ADU. What drives the range is straightforward: square footage, whether we are repairing an existing frame or pulling it and starting fresh, and how much of the surrounding structure needs to come back to level. A partial section repair, like re-glazing a failed panel or replacing a door frame, runs substantially less and we quote those case by case.
Every price we give is a written, line-item quote before work starts. You will know exactly what the parts cost, what the labor costs, and what is covered. Our workmanship warranty runs 365 days from the completion date, and if something is not right in that year, we return and fix it at no charge. No dispute process, no fine print.
See the difference
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AfterDIY or Call Us?
There are things you can safely check before calling. Look for a visible serial tag, take clear photos of the failed area from three angles, and note when the problem started. If you see a cracked panel, stop touching it. Glass under tension can fracture unpredictably, and a Mr-Glass panel that pops while you are handling it can send shards across a room.
What we see go wrong with DIY on these units is the same every time: someone pries a corner connector loose, gets the frame half apart, and then cannot get it seated again. By the time we arrive, the part that could have been swapped in an hour now needs a full frame section rebuilt. Tell me what's broken. I'll tell you what it takes. Call (619) 673-9302 and Isaac Pruett or one of our crew will walk you through what you are looking at before you touch a single fastener.
FAQs
A properly installed Mr-Glass frame in San Diego typically lasts 20 to 30 years before structural components need serious attention, but coastal exposure can cut that to 15 to 20 years for homes within a few miles of the water. Salt, UV, and the region's hard water all work the seals and finish faster than inland installations.
Yes, in many cases. Rollers, weatherstripping, setting blocks, and corner gaskets are all repairable without pulling the whole unit. The exception is a compromised frame or a blown thermal seal, which generally means replacing that panel or section. Call (619) 673-9302 for an honest assessment, not an upsell.
A simple hardware swap, like door rollers or a latch set, is usually done in a single visit of two to three hours. A full glazing panel replacement typically takes one day on site, plus curing time for any sealant. Structural frame work can run three to five days depending on access and scope.
We stock the most common Mr-Glass replacement hardware on our trucks and in our San Diego shop: rollers, latch sets, corner connectors, setting blocks, and standard weatherstripping profiles. Odd-size glass panels and specialized frame sections are ordered to spec, typically a few business days out. You will know before we start what is in hand and what we are waiting on.
Key Takeaways
- Mr-Glass home additions in San Diego run $53,100 to $153,400 for a full replacement; ADUs run $106,200 to $259,600.
- Match parts by the serial tag prefix, not by assuming all Mr-Glass series interchange. They do not.
- Signs of failure include dragging doors, fogged panes, corner gaps, and soft thresholds, and each has a specific fix.
- DIY is reasonable for documentation and diagnosis, but cracked glass and frame tension are not homeowner tasks.
- Written price before work starts, 365-day workmanship warranty, and background-checked, uniformed technicians on every visit.
If your Mr-Glass addition or ADU is showing signs of wear, or a part has already failed, call (619) 673-9302. We will identify the exact part, give you a written price, and schedule the work without the runaround.
Written by Isaac Pruett, Owner, Mason Remodeling Co San Diego at Mason Remodeling Co San Diego, serving San Diego and nearby areas.
