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Mr-Glass Roofing: The San Diego Owner’s Guide
If you have a Mr-Glass roof and something’s failing, we can help. Penhallow Remodeling San Diego stocks Mr-Glass-compatible roofing materials and installs replacements throughout San Diego County, with typical installed replacement costs running $470 – $2,125 for spot repairs and $9,440 – $23,600 for a full roof replacement. Most Mr-Glass roofing failures show up first as a slow leak near flashing or a cracked panel you spot from the driveway, and the sooner you call, the less the repair runs.
Which Mr-Glass Models This Applies To

Mr-Glass roofing systems break down into two broad families: the skylight and glazing panel lines (often used on patios, sunrooms, and covered walkways) and the reflective roof-coating systems used on flat or low-slope San Diego homes. The skylight and glazing panels are typically 3/8″ or 1/2″ tempered glass set in an aluminum frame, and the frame profile is what matters most for replacement. Look for the small etched label in the corner of the glass or the manufacturer’s stamp on the aluminum frame channel; that gives you the series number you need to match an OEM part.
Here’s the compatibility gotcha every San Diego homeowner should know: Mr-Glass panel sizes are not universal. Two panels that look identical from across the room can be off by an eighth of an inch in the frame channel, and that difference means a leak the first time it rains. We measure every frame channel before ordering, because we’ve seen too many “close enough” replacements fail on the first Pacific storm. As an independent San Diego contractor, we’re not affiliated with Mr-Glass, but we’ve worked on enough of their systems to know what fits and what doesn’t. For older Mr-Glass models where OEM parts are discontinued, we source quality aftermarket equivalents with matching thickness and thermal properties, and we tell you exactly which one you’re getting before any work starts.
Styles & brands we work with







Signs Your Mr-Glass Roofing Is Failing
Here’s what we see most often at Mr-Glass installations in San Diego, from the mild to the urgent:
- Water staining on the ceiling directly below the panel. This usually means the seal between the glass and the aluminum frame has given out. San Diego’s intense UV exposure breaks down glazing seals faster than in cooler climates, and once the seal fails, water gets in at the first winter rain.
- Condensation between the panes of a double-glazed unit. That fog is a failed thermal seal. The insulating gas is gone. The panel still sheds water, but its efficiency drops and replacement parts get harder to match the longer you wait.
- A visible crack in the glass or a chipped edge. Tempered glass either breaks completely or shows a distinct crack. Even a small chip compromises the panel’s strength, and the next temperature swing can shatter it.
- Aluminum frame showing white, chalky corrosion. Salt air near the San Diego coast plus the original frame coating wearing thin equals pitting. The corrosion eventually eats through the frame channel where the panel sits.
- Rust or looseness at the mounting brackets. The brackets that hold the panel to the roof structure take the weight of the glass and the force of every wind gust. Loose brackets mean the whole panel is moving, which stresses the seals and the frame.
See the difference
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After
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After
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AfterReplacement Cost & What’s Included

For San Diego homeowners, here’s what Mr-Glass roof work actually costs. A single skylight or glazing panel replacement typically runs $470 – $2,125 installed, depending on whether we’re replacing just the glass, the glass and the frame together, or the whole mounting assembly. A full roof replacement on a Mr-Glass system runs $9,440 – $23,600 depending on square footage, roof pitch, and whether we’re addressing the substrate (the structural layer under the roofing material) at the same time. The range is real because a flat single-story roof in Clairemont costs less than a steep-slope roof in Point Loma where we need additional safety equipment and a second crew member.
Every quote includes the parts, the labor, the haul-away of the old material, and the written price before we start. You get a written guarantee on the work backed by our 365-Day Done Right Promise: if the repair fails inside a year, we come back and fix it at no charge. You also get a real arrival window, and the number we write down on day one is the number on the invoice.
DIY or Call Us?
Some things you can check yourself: walk underneath the panel on a sunny day and look for cracks, fogging, or corrosion. Check the caulking around the frame for gaps. If you see water stains inside, that tells you where to look. But replacing a Mr-Glass panel is not a weekend project. Tempered glass under tension can shatter if you’re off on your measurements or force a frame into place, and a panel that’s not properly seated will leak, which means rot in the roof deck and a much larger bill in a year or two. If the panel is over anything you’d rather not replace, call us at (619) 604-9624. Tell me what you need, I’ll tell you what it costs, and we’ll go from there.
FAQs

Expect 15 to 25 years from a Mr-Glass glazing panel in San Diego’s climate, shorter if you’re within a mile or two of the coast where salt air accelerates frame corrosion. The glass itself rarely fails first; it’s the seal and the aluminum frame that go.
A failed seal can sometimes be re-glazed, but only if the frame channel is structurally sound. If the frame is corroded or the glass is cracked, replacement is the honest fix. We’ll tell you which one applies to your panel before anyone climbs a ladder.
A single panel replacement typically takes half a day from removal to final caulking. A full roof replacement on a Mr-Glass system runs three to seven days depending on roof size and the condition of the substrate underneath. Call (619) 604-9624 for an exact timeline on your roof.
We keep the most common Mr-Glass panel sizes and frame profiles on the truck for San Diego service calls, plus quality aftermarket equivalents for older models where OEM parts are no longer made. If your panel is an unusual size, we order it and you’ll know the lead time before we schedule. Estimates are always free.
Written by Trevor Nash, Owner, Penhallow Remodeling San Diego at Penhallow Remodeling San Diego, serving San Diego and nearby areas.


