Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Mr-Glass Home Additions & ADU: The San Francisco Owner’s Guide
If you have a Mr-Glass home addition or ADU component that has failed or is underperforming, we stock and install Mr-Glass-compatible parts across San Francisco, with typical installed replacement work running $53,100 to $153,400 depending on scope. Most owners discover the problem the way you just did: a door that no longer seals against fog-driven moisture, a window unit that has lost its thermal integrity, or a glass panel system that has begun to bow under years of marine-layer exposure. This page tells you exactly what we match, what it costs, and whether you need a full replacement or a targeted part swap. We are an independent contractor, not affiliated with Mr-Glass, and every job gets a written price before work starts.
Which Mr-Glass Models This Applies To
Mr-Glass products in the San Francisco market fall into three general categories: fixed glass wall systems, operable glass door units, and skylight or overhead glazing assemblies tied to home additions and ADU builds. The part that fails first is rarely the glass itself. It is the seal, the track hardware, or the substrate under the sill. When we quote a Mr-Glass repair, we identify the unit by its edge-etched manufacturer code and the frame’s corner stamp. If neither is legible (common after ten years of coastal air), we measure the insulated glass unit thickness, the frame extrusion profile, and the rough opening to confirm series compatibility before ordering anything.
Here is the compatibility gotcha most owners never hear until it costs them money: Mr-Glass uses three different frame extrusion profiles across its residential lines, and they do not share glazing gaskets or corner keys. A Series 200 fixed panel from a 2012 ADU build will not accept hardware from a Series 400 unit, even if the glass dimensions match to the eighth of an inch. OEM parts are available for most Series 200 through 600 units, but lead times in San Francisco can stretch to six weeks for older extrusions. For several Series 300 and 400 components, we recommend quality aftermarket equivalents from documented manufacturers with equivalent thermal ratings and identical channel geometry. We put that recommendation in writing, including the manufacturer and spec sheet, so you are not guessing at quality.
Styles & brands we work with
Signs Your Mr-Glass Home Additions & ADU Is Failing
- Condensation between glass panes. This means the insulated glass unit seal has failed. The argon or krypton fill has leaked out and San Francisco’s humidity is now living inside the cavity. The glass cannot be resealed. The IGU gets replaced.
- Visible fogging that clears and returns. Same root cause, earlier stage. The seal is failing but not fully gone. You have weeks to months before full failure. Scheduling now avoids water damage to the frame channel.
- White mineral streaks on interior framing. This is the Bay Area’s salt-laden air working through a failed weep system. The drains are clogged or the frame slope has shifted. The fix is a frame re-bed or a channel rebuild, not a caulk bead.
- Door or panel drags, sticks, or jumps the track. The rollers or track inserts are worn. On Mr-Glass sliding units, the stainless track inserts are the wear item. On older Series 200 units, the roller housings themselves crack.
- Frame pulls away from drywall at the corners. This is a structural red flag, not a glass problem. The rough opening framing has moved or rotted. In San Francisco additions we see this most often where old balloon-frame walls meet new work without proper shear transfer.
See the difference
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After
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AfterReplacement Cost & What’s Included
A full Mr-Glass home addition or ADU replacement in San Francisco runs $53,100 to $153,400 installed. The wide range exists because the lower end typically covers a single glass wall or door system replacement, while the upper end covers a whole ADU envelope: multiple glass panels, overhead glazing, structural reframing where required, and finish restoration. Smaller scope line items fall under the Kitchen Remodel, Bathroom Remodel, or Window Replacement ranges on this site. Here is the honest breakdown:
- Glass panel or door unit replacement only: $5,310 – $17,700
- Full home addition glass envelope (structural work included): $53,100 – $153,400
- ADU construction with Mr-Glass-compatible glazing: $106,200 – $259,600
Every quote includes the part, labor, haul-away, site protection, permit coordination if structural work is required, and our 365-Day Done Right Promise in writing. That promise covers the workmanship and the installed part for a full year. If it fails inside that window, we return and correct it at no charge. No fine print, no change orders at the door.
DIY or Call Us?
You can safely check a few things yourself: note whether the condensation is between the panes or on the room-side surface, check if the unit’s weep holes are clogged with debris, and look for cracks in the frame corners. What you should not do is attempt to remove a glass panel, re-bed a frame, or repair a sliding door mechanism on your own. A large IGU weighs more than it looks, the glazing compounds used on marine-exposure frames are specific, and a dropped panel on a San Francisco hillside job is a five-figure mistake plus a safety hazard. If the issue is a failed seal or a structural pull-away, call (831) 610-5598. We will give you a real number, in writing, before any work starts.
FAQs
In San Francisco’s coastal climate, a properly installed Mr-Glass IGU typically lasts 15 to 25 years before seal failure, while frame hardware lasts 10 to 20 years depending on exposure. Units facing the Pacific take the worst of it: salt-laden wind accelerates pitting on aluminum finishes and wears roller hardware faster. Call (831) 610-5598 for an exact assessment of your unit’s remaining life, no charge for the estimate.
No. A failed insulated glass seal cannot be repaired. The IGU is replaced as a unit while the existing frame, if still sound, is retained and re-glazed. This keeps cost down and preserves the original sightlines. If you are not sure whether your frame is salvageable, call (831) 610-5598 and we will tell you straight.
Most single-panel or door unit replacements in San Francisco take one day on site, with two to six weeks for OEM part delivery before the work day. Structural reframing work extends the timeline, and we document every milestone in the written scope you sign before we start. Your written price includes the timeline.
We stock common gaskets, roller assemblies, corner keys, and stainless track inserts for the most common Mr-Glass residential series. Full IGU units are ordered per job because glass sizes are specific to each opening. We also stock and install parts for KraftMaid, Cambria, and Silestone systems. If you need a specific part, call (831) 610-5598 and we will confirm stock before you commit to anything.
Straight number, real scope, no surprises at close-out. Curtis Lane and the crew at Bradford Remodeling Co San Francisco have been working Bay Area homes long enough to know how this marine air treats glass, framing, and sealants. When you call, a live person answers. When we quote, the price is in writing. When we finish, the site is clean and the guarantee is in your hand. Call (831) 610-5598 for your free estimate.
Written by Curtis Lane, Owner, Bradford Remodeling Co – San Francisco, CA at Bradford Remodeling Co San Francisco, serving San Francisco and nearby areas.
