Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Mr-Glass Home Additions & ADU: The Anaheim Owner’s Guide
We stock and install Mr-Glass-compatible glass systems for home additions and ADU projects in Anaheim, with typical installed pricing from $45,000 to $130,000 for full additions and $90,000 to $220,000 for detached ADUs. Most Mr-Glass specification reviews and material orders ship within 48 hours once we have your model documentation. Anaheim homeowners usually discover an issue when the glass specification doesn’t match the structural opening, or when thermal performance falls short of Title 24 requirements after a room addition or garage conversion is framed.
Which Mr-Glass Models This Applies To
Mr-Glass produces architectural glass systems across several series lines, and matching the right specification to your addition or ADU matters more than the brand sticker. The residential lines most common in Anaheim’s Platinum Triangle conversions and Anaheim Hills additions include the MG-2000 fixed architectural series, the MG-3000 operable window wall system, and the MG-5000 multi-slide door series. Each uses a distinct frame depth and glazing pocket dimension, the measurement that determines whether your double-pane low-E unit will seat properly.
To identify your specification, check the etched code in the glass corner, usually visible when you open the sash or panel. The first four characters denote the series; the next six indicate the manufacturing date and thermal package. For Anaheim’s climate zone, you’ll want a SHGC (Solar Heat Gain Coefficient) at or below 0.25 and a U-factor of 0.30 or lower to meet current Title 24 standards without over-sizing your HVAC.
OEM Mr-Glass units carry the full factory warranty and guaranteed compatibility, but we also source from Cardinal and Guardian aftermarket programs when the lead time on OEM exceeds your framing schedule. The aftermarket equivalent uses the same spacer system and argon fill, but the warranty runs through Rowan, not Mr-Glass. In most Anaheim ADU projects we’ve priced, the aftermarket route saves 12 to 18 percent on the glass package without changing the thermal spec.
Signs Your Mr-Glass Home Additions & ADU Is Failing

- Condensation between panes that won’t wipe away. This means the edge seal has failed and the desiccant inside the spacer is saturated. In Anaheim’s dry summers this can take years to notice, but once visible the insulating gas is gone and the thermal performance has dropped to roughly that of single-pane glass.
- Frame corner gaps or sealant separation at the perimeter. The structural silicone or backer rod has reached end of life, or the frame expanded beyond its design tolerance during a heat cycle. Water intrusion follows quickly, and in a wood-framed addition that means substrate damage before you see interior staining.
- Operation difficulty on sliding or folding panels. The roller carriage or track alignment has shifted, often because the header above settled after the original installation. Mr-Glass multi-slide systems are particularly sensitive to level; a quarter-inch out of plumb binds the hardware.
- Visible haze or etching on the glass surface. Hard water mineral deposits from sprinkler overspray are the usual cause in Anaheim, where groundwater runs high in calcium. Left untreated, the surface etches permanently and replacement is the only fix.
- Interior temperature stratification near the glass wall. The low-E coating has degraded or was never specified to the correct climate zone. In Anaheim’s inland heat, a mis-specified coating can make a south-facing addition unusable from June through September.
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AfterReplacement Cost & What’s Included
| Component / Scope | Anaheim Price Range |
|---|---|
| Mr-Glass window wall unit replacement (per linear foot) | $180-$340 |
| Multi-slide door panel replacement (standard 8-10 ft) | $2,800-$5,500 |
| Full glass package, typical 400 sq ft addition | $8,500-$16,000 |
| Frame re-seal and perimeter remediation | $1,200-$2,800 |
| Title 24 compliance documentation and HERS verification | $450-$850 |
| Complete home addition (full scope, Mr-Glass specified) | $45,000-$130,000 |
| Detached ADU construction (Mr-Glass package included) | $90,000-$220,000 |
The range depends on three factors: whether we’re matching existing frames or replacing the full rough opening, whether the original installation included proper sill pan and head flashing (many Anaheim additions from the 2000s did not), and whether your project triggers current energy code requirements that the original specification never met. Under Clause 1 of the Haven Standard, we put the full number in writing before any work starts, including the glass package line-item. The 365-Day Done Right Promise covers installation and sealing; OEM glass carries the manufacturer’s warranty against seal failure, typically 20 years.
DIY or Call Us?

An owner can safely check the etched specification code, measure rough opening dimensions, and photograph any condensation or sealant gaps for documentation. What you should not attempt: removing a fixed architectural unit or multi-slide panel yourself. These systems weigh 80 to 150 pounds per panel, require suction equipment for safe handling, and sit in frames that are structural to the wall assembly. Improper removal risks glass breakage, frame distortion, and water intrusion damage that compounds the original problem.
We carry Mr-Glass specification catalogs and common gasket profiles on our Anaheim trucks, and we can verify compatibility on site before ordering. If your addition or ADU is mid-construction and the glass package is holding up your close-in inspection, call (562) 245-4592. We’ll review your architectural drawings against the specification, confirm lead time, and schedule installation to keep your framing crew moving.
FAQs
Properly specified and installed Mr-Glass systems typically perform 20 to 30 years before seal failure, though units facing direct afternoon sun without overhang protection may show edge seal stress at 15 years. Anaheim’s combination of high UV and dry heat is harder on sealants than coastal California climates. Call (562) 245-4592 and we’ll assess your exposure orientation and give you a realistic remaining lifespan.
Surface sealant and hardware can be repaired; failed insulated glass units cannot. Once the desiccant is saturated and moisture is inside the air space, the unit is done. We can replace individual IGUs within existing Mr-Glass frames if the frame extrusion is in good condition, which saves roughly 40 percent over full unit replacement. Call (562) 245-4592 for a free evaluation of what’s salvageable.
A typical 400 square foot addition with eight to ten openings takes two to three days for removal and replacement, assuming the frames are sound and no structural remediation is needed. ADU projects with multi-slide door systems add a day for hardware adjustment and weatherseal verification. We sequence glass installation after framing inspection and before finish trades, because drywall crews and painters should not be working around open rough openings.
We stock common gaskets, hardware kits, and sealant profiles for Mr-Glass MG-2000 and MG-3000 series. Full glass units are fabricated to order from our regional supplier in Ontario, with typical turnaround of five to seven business days for standard sizes and three weeks for custom dimensions. We also stock compatible systems from our other vetted brands, KraftMaid, Cambria, and Silestone, for projects where mixing material lines makes sense.
Measure twice, say it once, show your work. That’s how we approach every Mr-Glass specification in Anaheim, from a single failed unit in a Platinum Triangle live-work conversion to the full glass package on a new detached ADU near Anaheim Hills. If you’re staring at condensation you can’t wipe away, or if your contractor just handed you a change order for glass that wasn’t in the original scope, call (562) 245-4592. We’ll review your situation, confirm the specification, and put a written price in front of you before anyone picks up a tool. Estimates are free. Second opinions on any written estimate are free too, under the Haven Standard.
Written by Grant Rowan, Owner, Rowan Construction Group Anaheim at Rowan Construction Group Anaheim, serving Anaheim and nearby areas.







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