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Mr-Glass Home Additions & ADU: The Woodland Hills Owner’s Guide
If you own a Mr-Glass home addition or ADU in Woodland Hills and a component has failed, we stock and install Mr-Glass-compatible parts locally, with most replacements running $350 – $2,800 installed depending on the part. The typical installed price for a full Mr-Glass home additions & ADU replacement in Woodland Hills lands between $45,000 and $130,000 when structural work is involved, but individual parts like door seals, window glazing, hardware, flashing, and framing components carry far lighter price tags. Most Woodland Hills homeowners discover the failure the way you just did: a draft that wasn’t there last winter, a door that suddenly sticks, water staining along a seam, or a crack that appeared after a heat spell. The good news is that we run Mr-Glass-compatible parts on our service trucks for the most common failures, so diagnosis and replacement often happen in a single visit.
Which Mr-Glass Models This Applies To
Mr-Glass home additions and ADU systems shift by era. The earlier Woodland Hills installations, roughly pre-2012, used aluminum frame glazing with single-pane tempered glass and friction-fit seals that dry out and shrink in Southern California heat. The later lines moved to dual-pane low-E units with thermal breaks in the aluminum and compression gaskets that hold up better but still fail at corners after years of UV exposure. If you can find the manufacturer’s label etched into the corner of a glass panel or stamped on the interior frame edge, write down the series code; that tells us whether you need an OEM Mr-Glass replacement or whether a quality aftermarket equivalent at 60 – 70% of the OEM price will fit cleanly. One compatibility gotcha worth knowing: Mr-Glass changed its channel depth on the 2009 – 2011 ADU line by 3mm, so a part that measures correctly but comes from the wrong vintage will leave a visible gap at the weatherstrip. We measure before we order, every time.
Styles & brands we work with
Signs Your Mr-Glass Home Additions & ADU Is Failing
- Drafts around the glass panels or door edges. The seals and gaskets lose flexibility after 8 – 12 years of Woodland Hills sun, and once they shrink, air moves through gaps you can feel with a damp hand on a cool morning.
- Condensation between dual panes. This means the edge seal has failed and the argon or krypton fill has escaped. The glass unit, not the frame, needs replacement, and we replace the entire insulated glazing assembly rather than patching it.
- Sticking or grinding when you open a door or slide a panel. Heat expansion from the San Fernando Valley’s summer cycles warps roller assemblies and track runners on Mr-Glass’s sliding panel units. Forcing the panel only bends the frame further.
- Water staining along the bottom track or interior wall edges. Failed flashing or clogged weep holes let moisture migrate into the floor structure. In Woodland Hills, where we get concentrated rain between long dry stretches, the damage accumulates before you see it on the surface.
- Hairline cracks radiating from frame corners or anchor points. This is structural, not cosmetic. Calcium buildup from hard water combined with thermal cycling stresses corner welds and glazing channels.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
A full Mr-Glass home additions and ADU structural replacement in Woodland Hills typically runs $45,000 to $130,000, driven by square footage, foundation integrity, roofing integration, and whether we’re replacing the glass envelope only or rebuilding walls and load paths. What moves the number most: access to the existing footings, the condition of the tie-in to the primary home, and whether the area requires updated shear-wall hardware. For individual components, here’s what Woodland Hills homeowners are paying installed:
- Dual-pane insulated glass panel replacement: $350 – $900 per panel
- Sliding door roller and track rebuild: $250 – $650 per door
- Door and window weatherstrip reseal (full unit): $180 – $500
- Flashing repair around the roofline tie-in: $600 – $1,800
- Frame corner weld repair and reinforcement: $400 – $1,200 per corner
- Full glazing system replacement (all glass and seals): $6,000 – $18,000
Every quote includes parts, labor, haul-away of the failed components, and a written price before work begins, so there’s no surprise once we open the wall. The 365-Day Done Right Promise covers our repair and replacement work for one full year from the completion date.
DIY or Call Us?
You can safely check the obvious things: feel for drafts along the seals with a damp hand, look for condensation inside the glass, and clear debris from the bottom track weep holes with a soft brush. That’s where we’d stop. Working with tempered glass panels under frame tension, removing glazing without the right setting blocks, or attempting to re-weld an aluminum corner is dangerous, and a dropped panel will turn a $400 part replacement into a $4,000 glass door rebuild. If the failure is structural, if water has entered the wall, or if the panel is cracked, call us at (831) 290-6866 and let a trained crew handle the removal. We bring the part, the tooling, and the hands to do it right the first time.
FAQs
Seals and gaskets typically last 8 – 12 years in San Fernando Valley heat before UV breakdown begins, while the frame and structural glazing channels can last 25 – 30 years if the seals are replaced on schedule and the weep holes stay clear. Call (831) 290-6866 if yours are nearing that range, and we can inspect before a leak, not after one.
Sometimes yes, hinges, rollers, weatherstrip, and minor flashing can often be repaired in place for $180 – $800, but a failed dual-pane seal or a cracked tempered panel needs full replacement because the glass unit is manufactured as one sealed assembly. We’ll tell you which category yours falls into before any work is approved.
Most weatherstrip, roller, and single-panel replacements are completed in two to four hours once we’re on site, and we stock the most common Mr-Glass-compatible parts on the truck. Structural repairs involving flashing or a full glazing replacement run one to three days depending on weather and access.
We keep the most common Mr-Glass-compatible seals, rollers, tracks, and glass panel sizes in stock for Woodland Hills service calls, and we also carry parts for KraftMaid cabinetry, Cambria stone, and Silestone surfaces since many owners of Mr-Glass structures have those brands tied in. Odd sizes and specialty glass go on order with a 3 – 7 day turnaround.
If the failed part is making your addition or ADU uncomfortable or unsafe, call (831) 290-6866 for a free estimate. Tell me what you need done. I’ll tell you what it takes and what it costs. Then we get to work.
Written by Isaac Pruett, Owner, Mason Remodeling Co – Woodland Hills, CA at Mason Remodeling Co Woodland Hills, serving Woodland Hills and nearby areas.
