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Mr-Glass Construction in Montclair, CA | Polaris Contractors
We’re Polaris Contractors, and we provide independent Mr-Glass service across Montclair – frameless shower enclosures, mirrors, sliding glass doors, and full Home Remodeling in Montclair including tub-to-shower conversions. The one thing that makes our Mr-Glass work different here? We know what 1950s-70s Montclair tract homes do to glass and hardware over decades of foothill heat, and we plan every job around the city’s tight lots and older rough openings. Call (855) 473-6535 for a free estimate on any Mr-Glass repair or replacement in Montclair.
Why Montclair Residents Choose Us for Mr-Glass Service
Most contractors in the Pomona Valley can hang a shower door. Few can tell you why the original Mr-Glass frameless hinges on a 1963 ranch off Holt Blvd are sagging at the outer roller, or whether that hairline chip in the tempered glass is a repair candidate or a replacement trigger. We’ve serviced Mr-Glass products across Montclair’s housing stock long enough to know the difference, and our team, led by Rick Sondermann, brings decades of hands-on renovation experience to every glass job. Rick grew up in Corona del Mar and learned construction fundamentals at Saddleback College before spending years rebuilding coastal homes as a General Contractor in Montclair area, so precision and material selection aren’t afterthoughts – they’re the job. As an independent contractor, not a Mr-Glass affiliate, we recommend the fix your Montclair home actually needs. If the glass is sound, we repair. If it’s failing, we say so plainly and quote a replacement. Do it right the first time – the second time always costs more.
Styles & brands we work with







Common Mr-Glass Construction Problems We Solve in Montclair
- Frameless shower door hinge sag and glass-to-wall chipping: Montclair’s long, hot summers (95-105°F for stretches) expand and contract metals and wall framing. On older west-side ranch homes, that means Mr-Glass frameless hinges slowly loosen, the door sags a few millimeters, and the corner starts tapping the tile. We reset hinges, shim where needed, and replace worn pivot hardware before the glass chips. It’s an afternoon fix if caught early, a full glass replacement if ignored.
- Corroded aluminum-framed Mr-Glass shower doors from the 1960s-70s: Apartments and older homes along the 10 freeway corridor often still have original aluminum-framed Mr-Glass sliders. Humidity swings from daily showers plus Montclair’s intermittent Santa Ana dryness eat the rollers and tracks. Doors seize, jump track, or stick half-open. We replace rollers with OEM-spec hardware when available, clean and resquare the track, and restore smooth operation.
- Mirror desilvering in bathrooms with original galvanized plumbing: Here’s one we see constantly in Montclair’s 1950s-70s stock: the silver backing near mirror edges turns black or flaky. Behind it, there’s usually a slow leak in old galvanized supply lines inside the wall, feeding moisture against the mirror’s back. We don’t just replace the glass – we investigate the moisture source and repair what’s feeding it, then install a properly sealed replacement.
- Improperly sealed frameless enclosures in ADU and garage conversions: Montclair’s push toward ADUs and garage-to-living conversions is real, but many of those conversions squeeze a shower into a space with no real ventilation. A poorly sealed Mr-Glass-style enclosure wicks water into new framing, and in tight, zero-lot-line setbacks with minimal airflow, that framing stays wet. We seal curbs against pans, use full silicone bead runs, and check weep paths so water goes where it belongs – down the drain, not into the wall.
- Out-of-square rough openings on mid-century homes: Montclair’s older tract homes weren’t framed with laser precision. Shower openings can be off by half an inch or more, and off-the-shelf Mr-Glass kits never sit right. We template every opening on-site, cut glass to actual dimensions, and add blocking or sistered studs where needed so the door operates cleanly.
Mr-Glass Service in Montclair: What Local Conditions Mean for Your Equipment
Montclair is a small, fully built-out city of about 3.8 square miles, and that single fact shapes almost every Mr-Glass job we take on here. Older homes near Holt Blvd and the surrounding streets often have original pink or blue tile bathrooms with recessed medicine cabinets and non-standard rough openings. A frameless enclosure won’t just drop in – it needs custom templating and frequently wall reinforcement to carry the weight of 3/8-inch tempered glass. What’s more, Montclair’s tight, zero-lot-line-like setbacks mean many of those west-side properties have no rear-yard access for equipment. We template and cut glass off-site, then hand-carry panels through side gates and narrow walkways. That’s a logistics step you rarely need on the larger lots just up the road in Claremont or Upland, and it’s why we plan Montclair jobs differently from the start.
Mr-Glass Models & Products We Service in Montclair
We service the full Mr-Glass range that turns up in Montclair homes: Frameless Shower Enclosures (both Semi-Frameless and Frameless Series), Custom-Cut and Beveled Mirrors, and Sliding Glass Doors and Shower Doors. For parts, we use OEM Mr-Glass hinges, seals, and rollers whenever available, because original hardware preserves fit and finish on enclosures that have been in place for 30 or 40 years. When OEM is discontinued or backordered, we source high-quality aftermarket glass and hardware that matches the original spec. If a frame or hinge is failing but the glass is sound, we repair. If the glass carries chips, shows desilvering, or the enclosure is 20-plus years old, we’ll recommend a full replacement with a modern frameless unit. On a 1958 ranch off Holt Blvd, our crew replaced a corroded aluminum-framed Mr-Glass shower door with a custom frameless enclosure. The opening was out-of-square by 3/4-inch, so we sistered the studs and templated the glass on-site before hand-carrying the panels through a 30-inch side gate. The homeowner gained a walk-in shower with 3/8-inch tempered glass and OEM-style hinges, and we sealed the new curb against the original mud-set pan to stop the moisture problem that had destroyed the old door.
See the difference
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AfterMr-Glass Service Pricing in Montclair
| Service | Price Range |
|---|---|
| Walk-In Shower Installation | $4,500 – $12,000 |
| Frameless Glass Shower Enclosure (part of Walk-In Shower Installation) | Included in walk-in scope |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Shower Replacement | $3,000 – $8,500 |
What actually drives the number? Opening size, glass thickness, whether we need to modify framing, and whether new valves or waterproofing go in alongside the glass. A straightforward tub-to-shower on a Montclair tract home lands differently than a full walk-in with custom templated panels for an out-of-square 1960s opening. Every estimate covers the complete scope in writing before we start. Call (855) 473-6535 and we’ll walk your specific bathroom and give you a real number.
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, when the glass is the only problem. If a panel is chipped, cracked, or delaminating but the frame, hinges, and rollers are solid, we template the replacement glass to the existing frame’s exact dimensions and swap it in. The catch – and we’re honest about this up front – is that Montclair’s older aluminum Mr-Glass frames are often corroded or out-of-square by the time the glass needs replacing. In that case, putting new glass into a failing frame doesn’t make sense, and we’ll recommend a full replacement instead. Call (855) 473-6535 and we’ll tell you which one your enclosure actually needs.
It can, and it usually does, but not with an off-the-shelf kit. Non-standard openings like the ones we see in Montclair’s 1960s west-side homes need custom templating – on-site measurement, then glass cut to the actual dimensions, including any out-of-square corners. We often add blocking or sistered studs to carry the weight of 3/8-inch glass, and we work around recessed medicine cabinets without disturbing the surrounding tile. It takes a little more planning than a stock enclosure, but the result is a shower door that operates cleanly for years. Call (855) 473-6535 for a free on-site assessment.
Montclair’s long stretches of 95-105°F heat cause the metals in Mr-Glass hinges to expand and contract repeatedly, which slowly loosens set screws and pivot points. Over a few summers, a frameless door starts to sag and the outer corner can contact the tile or threshold, which is how chips start. Silicone seals also degrade faster in sustained heat and dry air, especially on south-facing walls or bathrooms that catch direct afternoon sun. The fix is periodic hinge tightening, seal replacement when we see shrinkage or gapping, and re-shimming where wall movement has thrown the door out of plumb. If you’re noticing a door that catches or a seal that’s peeling, call (855) 473-6535 – a quick adjustment beats a glass replacement.
Yes, and that’s one of the most common mirror jobs we do in Montclair. Desilvering along mirror edges – that black or flaky degradation of the silver backing – is often tied to moisture from original galvanized plumbing leaking behind the wall. We don’t just hang a new mirror and call it done. We check the wall cavity for dampness, identify the plumbing issue if there is one, and address it before installing a properly sealed replacement mirror so the new glass doesn’t fail the same way in a few years. For an exact quote, call (855) 473-6535 – estimates are free.
We can, and we’re doing more of that work as Montclair homeowners convert garages and add ADUs on tight lots. The two things that matter most in those spaces are ventilation and sealing. Garage conversions and ADUs often have limited air movement, which means any water that wicks into framing stays there. We seal the curb against the pan, run a full silicone bead on every seam, and check that weep paths drain correctly before we consider the job done. If you’re mid-conversion or planning one, call (855) 473-6535 – we can coordinate the shower glass alongside the rest of the build.
Service Areas Near Montclair
We serve Montclair and the surrounding area, including Mr-Glass service in La Verne for homeowners to the north, Mr-Glass service in Ontario to the south and east, plus Chino, Upland, and Pomona. If you’re in one of those communities or anywhere in the Pomona Valley, we’re close by. You can also check our Montclair service area page for more detail on the neighborhoods we cover. And for an overview of everything we do with this product line, see our Mr-Glass sales & service page.
Book Your Mr-Glass Service in Montclair Today
Whether you need a hinge tightened before it chips the glass, a full frameless conversion, or a mirror replacement with the moisture source addressed properly, we’re ready. Call (855) 473-6535 and we’ll schedule your free estimate and give you a scope and number you can plan around.
Written by Rick Sondermann, Owner at Polaris Contractors, serving Montclair and the Pomona Valley since 1998.