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Mr-Glass Construction in Montclair, CA | San Mateo Construction
We’re San Mateo Construction, an independent Mr-Glass service in Ontario and throughout Montclair (ZIP 91763). We install and repair Mr-Glass frameless shower enclosures, custom mirrors, sliding glass door systems, and window glass replacements. What makes our Mr-Glass work different in Montclair is straightforward: this city is built out, so nearly every job lands inside a postwar tract home that was never framed for modern glass systems. That means we spend real time blocking studs, leveling openings, and getting inspections right before any glass goes in. Call (855) 901-7266 for a free estimate.
Why Montclair Residents Choose Us for Mr-Glass Service
Noel Carrington grew up a few blocks from Coyote Point and spent weekends helping his father pour concrete footings. He studied construction technology at Skyline College and has spent the better part of three decades running residential and light commercial jobs. That background matters when you’re dealing with Mr-Glass repair in La Verne or Montclair’s older homes, because the failure is rarely just the glass. It’s the framing behind it. We use OEM-spec Mr-Glass hardware for any structural or warranty-sensitive repair, and we give a straight repair-vs-replace call based on frame condition, not the age of the glass alone. If the wall can’t hold a hinge properly, no amount of new glass will fix the problem.
One contractor handles the whole scope. We also install and service Mr-Glass sales & service across every other system on the property, so when a shower enclosure job reveals rot in the wall behind it, the same crew opens the wall, fixes the framing, and closes it back up. You’re not juggling a glass contractor and a carpenter. You’re calling one number.
Styles & brands we work with







Common Mr-Glass Construction Problems We Solve in Montclair
Five failure patterns show up in Montclair more than anywhere else we work:
- Frameless hinge loosening and edge chipping. Montclair’s hard water leaves scale that builds on hinge points, and the seasonal thermal cycling from hot inland summers stresses the glass at the pivots. We see chips, loosened screws, and panels that drift out of alignment. The fix is new OEM hinges and a proper reset of the panel.
- Sliding door rollers seizing during Santa Ana events. Wind-driven dust from the Santa Anas works into roller tracks, and when it mixes with old grease, the rollers bind. Doors jump their track or refuse to move. We pull the panel, clean the track, and install OEM-spec rollers.
- Mirror silvering failure along the bottom edge. Most 1950s to 1970s Montclair homes still have their original bathroom exhaust setups, which don’t move enough moisture. Mirrors desilver at the bottom edge first, turning black or cloudy. We replace them with new Mr-Glass mirrors and advise on ventilation at the same time.
- Edge chips from settled framing. Older stick-frame walls shift over decades, and that movement transfers to glass set against them. Edge chips in tempered patio door panels and shower panels are common. Once the glass has an edge chip, it can shatter during a heat spike. We inspect for this specifically on every service call in Montclair.
- Improperly blocked shower openings. Original Montclair bathrooms were framed for tub-and-curtain setups. Frameless Mr-Glass enclosures need solid wood blocking behind the tile to hold hinge screws. When a previous installer skipped that step, the panel pulls loose. We open the wall and fix it properly.
Mr-Glass Service in Montclair: What Local Conditions Mean for Your Equipment
Montclair is fully built out. That’s the single fact that shapes almost every Mr-Glass job here. In a newer subdivision, a shower or mirror installation lands in a reasonably square opening with modern framing. In Montclair, it lands inside a 1950s to 1970s single-story tract home where the original bathroom was framed for a tub and curtain, not a 10mm tempered glass panel. The studs are often not where they need to be, the opening has shifted out of square over six or seven decades, and the city’s infill inspection process wants to see proper blocking before the glass goes up. So before we hang a frameless panel on a home near the Mr-Glass in Claremont or Montclair Plaza area, we sister studs, re-level the opening, and make sure the structure will actually hold the panel. That’s the difference between a Mr-Glass enclosure that hangs true for a decade and one that pulls loose at the hinge in two years. For anyone considering Mr-Glass work in Montclair, this is the part of the job you can’t see but absolutely feel when it’s done wrong.
On a 1962 tract home near the Montclair Plaza area, we replaced a failing tub-to-shower conversion where the original Mr-Glass frameless enclosure had been mounted without proper stud blocking. The fixed panel had pulled loose and chipped at the hinge. We opened the wall, added solid blocking, reset the OEM hinges, and installed a new 10mm Mr-Glass panel. The homeowner got a level, rattle-free door and a clean inspection sign-off.
Mr-Glass Models & Products We Service in Montclair
We install and service the full Mr-Glass line: Mr-Glass Frameless Shower Enclosures (10mm tempered glass), Mr-Glass Custom Mirrors & Medicine Cabinets, Mr-Glass Sliding Glass Door Systems, and Mr-Glass Window & Patio Door Glass Replacement. For any structural or warranty-sensitive repair, we use OEM-spec Mr-Glass hardware: hinges, rollers, seals, and clips. Where the original design allows, we offer high-quality aftermarket glass and seals as a practical alternative. We keep common OEM hinge and roller hardware stocked for fast turnaround across Montclair service area calls, which means fewer days waiting on parts and fewer follow-up visits.
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AfterMr-Glass Service Pricing in Montclair
What you’ll pay depends on the scope and what we find behind the wall. Here’s where Montclair jobs typically land:
| Service | Price Range |
|---|---|
| Walk-In Shower Installation | $4,500 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Shower Replacement | $3,000 – $8,500 |
| Bathroom Vanity Installation | $800 – $3,000 |
The biggest cost driver in Montclair isn’t the glass. It’s the framing work required to make an older bathroom safely hold a frameless system. If the opening is square and the blocking exists, the job stays on the lower end of that range. If we need to sister studs, re-level, and re-tile, expect the upper end. Every estimate is free and itemized, so you’ll see exactly what you’re paying for before we touch anything. Call (855) 901-7266 and we’ll walk you through it.
Serving Montclair, CA — Our Local Coverage Area
We’re based in the Montclair area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Mr-Glass Construction in Montclair
Yes, in most cases. The frameless panel itself can go into almost any opening once the wall is properly blocked and leveled. On older Montclair homes, we typically open the wall behind the tile, add solid wood blocking, re-level the opening, and then install the Mr-Glass panel. You don’t need a full remodel unless the surrounding tile or waterproofing is failing. Call (855) 901-7266 for an exact assessment and quote.
Santa Ana winds drive fine dust into the roller track, and that dust mixes with old grease to create a paste that binds the rollers. The door jumps its track or refuses to slide. We pull the panel, clean the track thoroughly, replace worn rollers with OEM-spec Mr-Glass hardware, and re-lubricate with a dry lubricant that won’t attract more dust. If it’s happening every wind season, it’s worth a service call before the door gets damaged.
Mirror silvering that’s failing along the bottom edge can’t be repaired. Once the silver is gone, the mirror needs replacement. Shower glass with an edge chip is a repair-or-replace call depending on chip size and location. Small edge chips can sometimes be polished out. Larger chips near hinges or stress points mean the panel should be replaced, because tempered glass with a serious edge chip can shatter during a heat spike. We’ll give you the straight answer based on what we see, not what sells more glass.
It often does. Because Montclair is fully developed, almost every Mr-Glass shower or mirror job lands inside an older home with framing realities that newer subdivisions don’t have. If we need to add blocking, re-level a shower opening, or pull permits for structural work, that adds time. We factor that into the schedule up front, so you know what to expect before the first day of work. Call (855) 901-7266 and we’ll give you a realistic timeline for your specific home.
Frameless shower enclosures and tub-to-shower conversions are the most common. Montclair’s single-story tract homes were built with tub-and-curtain bathrooms, and most owners want a walk-in shower with a frameless Mr-Glass panel. Custom mirrors and medicine cabinets follow close behind, then sliding glass door and window glass replacement. We stock the hardware for all of them.
Service Areas Near Montclair
Our Mr-Glass service covers Montclair and the surrounding communities, including Mr-Glass service in Upland, Mr-Glass service in Hesperia, Ontario, Claremont, and Pomona. If you’re on the edge of Montclair or just outside the 91763 ZIP, call us. We’ll tell you straight whether you’re in our coverage area and what the schedule looks like.
Book Your Mr-Glass Service in Montclair Today
If your Montclair home needs Mr-Glass shower, mirror, or sliding door work, call (855) 901-7266 for a free estimate. We’ll talk through what you actually need, and we’ll figure out the right way to build it.
Written by Noel Carrington, Owner at San Mateo Construction, a General Contractor in Montclair serving the surrounding communities.