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Mr-Glass Construction in Cupertino, CA | Timberline Contractors
If you own a Mr-Glass shower enclosure in Cupertino and it’s leaking, swinging out of plumb, or clouding over, we can fix it. Timberline Contractors is an independent Mr-Glass service provider working across the 95014 and 95015 ZIP codes, and most of what we repair here comes down to one thing: original 1950s – 70s ranch house framing that was never built to carry heavy frameless glass. Call (866) 253-5808 and we’ll come take a look.
Why Cupertino Residents Choose Us for Mr-Glass Service
We’ve been setting, re-sealing, and replacing Mr-Glass enclosures in Cupertino long enough to know where they fail and why. The brand’s frameless sliding systems and pivot-hinge enclosures are well built, but they demand solid blocking, plumb jambs, and a properly waterproofed curb underneath. In Cupertino’s housing stock, those conditions are rarely present from the start. Nelson Fung, our owner and general contractor, learned the trade at Los Angeles Trade-Technical College and has spent years on mid-century remodels, so when a Mr-Glass door won’t hold a hinge or a curb weeps into the slab, our crew treats it as a framing and waterproofing problem, not just a glass swap. We match Mr-Glass OEM hinges, pivots, sweeps, and handles wherever the original hardware is still serviceable, and we stock the fast-moving seals and rollers locally so a Cupertino call doesn’t turn into a two-week parts wait. We’re also a full Mr-Glass sales & service resource, which means we can measure, order, and set custom panels without handing you off to a glass shop.
Styles & brands we work with







Common Mr-Glass Construction Problems We Solve in Cupertino
These are the failures we see repeatedly, and each one maps to a specific Cupertino condition:
- Pivot and hinge screws pulling out of original wall substrate. Eichler-era and 1960s – 70s ranch baths often have tile set over greenboard with no blocking behind it. A remodel later adds a heavier Mr-Glass frameless door, and within a season or two the screws start to strip. The door sags, drags, and eventually won’t close. We open the wall, add solid blocking, and re-set the hardware properly.
- Bottom sweep and seal degradation from winter rain-driven humidity. Cupertino’s wet-winter Mediterranean climate means December through March brings moisture that wicks under a failing door sweep. The curb stains, grout darkens, and if it’s an original slab-on-grade curb, water tracks into the hall. We replace Mr-Glass sweeps and seals with OEM parts where available, and we rebuild the curb if it was never waterproofed.
- Mineral etching and hard-water clouding on glass panels. Dry summers and sunny exposures on the west-facing side of a Cupertino lot accelerate hard-water spotting. Low-iron Mr-Glass panels look beautiful until they’ve spent a few summers under sprinkler-hard water. In many cases, polishing can restore clarity; in advanced cases, the panel is etched past saving and replacement is the honest call.
- Header and wall-jamb deflection on older framing. Open-beam ceilings and post-and-beam construction are common in mid-century Cupertino homes. When the header over a shower opening shifts, a frameless Mr-Glass enclosure goes out of plumb. Doors swing open on their own, or they won’t seal against the strike jamb. Shimming can buy time, but if the framing has moved, the glass job becomes a structural correction first.
- Leaking neo-angle corner units in original hall baths. Mr-Glass neo-angle corner showers are popular in smaller Cupertino bathrooms, but the original pans and curbs under them are often original to the home. When the seal between the glass and the curb fails, the leak looks like a caulk problem. It’s usually not. We re-bed the track, and if the curb is rotten or unwaterproofed, we rebuild it before re-setting the glass.
Mr-Glass Service in Cupertino: What Local Conditions Mean for Your Equipment
Here’s what separates Cupertino from neighboring cities on a Mr-Glass repair: this city’s original housing stock is mostly single-story 1950s – 70s ranchers and post-war tract homes, with a surprising number of Eichler-style builds still on large lots. Those homes were framed before frameless glass shower enclosures existed as a product category. So when a Mr-Glass enclosure gets installed in an original hall bath off a mid-century lot near the Apple Park employment base, the wall framing, blocking, and slab-on-grade curb are all original to the home. That means most of the Mr-Glass work we do in Cupertino is really a framing and waterproofing job disguised as a glass job, similar to the Mr-Glass service in Saratoga where aging ranch homes create the same challenges. In a typical 1960s ranch in the 95014 ZIP, the studs behind the tile are spaced for drywall-era thinking, not for a 90-pound tempered panel swinging on two hinges. The curb was likely floated with deck mud and no membrane. And the header over the opening was sized for the weight of a curtain rod, not a frameless glass panel. We’ve learned to plan every Cupertino Mr-Glass service call around that reality. If you live in a newer custom rebuild, the calculus changes, but the majority of this city’s lots still hold original construction.
Mr-Glass Models & Products We Service in Cupertino
Our crew handles the full enclosure life-cycle in Cupertino: measuring for custom frameless panels, setting heavy glass into mid-century slab or curb openings, and re-sealing units that builders installed decades ago. We work on Mr-Glass frameless sliding shower door systems, pivot-hinge frameless enclosures, neo-angle corner units, and custom-cut tempered panels and shelves. When original Mr-Glass hardware is still serviceable, we match OEM hinges, pivots, sweeps, and handles. When a part is discontinued, we use quality aftermarket seals and rollers, and we’ll tell you which is which before we order anything. A re-seal on failing glass, by the way, delays the inevitable and risks a water-damaged curb, so if a panel is etched, chipped, or the framing has moved beyond shimming, we’ll recommend replacement over repair. That’s the honest call, and we make it weekly on Cupertino service area jobs.
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AfterMr-Glass Service Pricing in Cupertino
What you’ll pay depends on whether we’re re-sealing an existing enclosure, replacing hardware, rebuilding a curb, or setting new glass. Here are the line-item ranges we quote in Cupertino:
| 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 |
| Small Bathroom Remodel | $5,000 – $12,000 |
What drives cost is whether the framing behind the tile needs blocking, whether the curb needs waterproofing, and whether the glass itself can be saved. A free estimate means we come out, inspect the enclosure, and give you a written line-item quote before any work starts. Call (866) 253-5808 to schedule one.
Serving Cupertino, CA — Our Local Coverage Area
We’re based in the Cupertino area and know this community well, with Mr-Glass repair in Loyola and surrounding neighborhoods part of our regular service coverage. Use the map below to see our full service area — if you’re nearby, we can almost certainly help.
FAQs – Mr-Glass Construction in Cupertino
Yes, in most cases. The enclosure can be set into an original mid-century bathroom as long as we add solid blocking behind the tile, confirm the header and jambs are plumb, and waterproof the curb before setting the glass. If the framing has moved or the curb is failing, we’ll tell you before any glass work starts. Call (866) 253-5808 for an assessment.
Like Mr-Glass in Sunnyvale, Cupertino’s wet winters expose failing sweeps and seals. When the factory sweep degrades, rain-driven humidity wicks under the door and stains the curb. The fix is usually a new Mr-Glass OEM sweep and a re-bedded track, plus a curb waterproofing check. If the curb was never membrane-sealed, a seal alone won’t stop the leak. Call (866) 253-5808 and we’ll diagnose it properly.
Usually the house. Header or wall-jamb deflection on older Cupertino framing lets the enclosure go out of plumb, so the door drifts — a pattern we also see with Mr-Glass repair in Los Altos. We check the framing first, shim or reinforce where needed, and then re-set the Mr-Glass hinge geometry. Replacing hinges without fixing the framing just transfers the problem.
For a straight glass or shower replacement, permitting is typically not required in Cupertino. But if the job expands into moving walls, relocating plumbing, or changing the bathroom footprint, the city’s design-review and neighbor-notification process can apply. We’ll tell you upfront what triggers review and what doesn’t. That’s part of being a full-scope general contractor.
Sometimes it can be polished. Hard-water etching on standard tempered panels is often surface-level and responds to restoration. But if the clouding is deep, or the panel is low-iron glass that’s been etched for years, replacement is the only real fix. Polishing deep-etched glass just thins the panel. Call (866) 253-5808 and we’ll assess yours.
Service Areas Near Cupertino
Beyond Cupertino, our crews cover Mr-Glass service in Santa Clara, Mr-Glass service in San Jose, and nearby communities across the South Bay. If your Mr-Glass enclosure is in a mid-century rancher or a newer rebuild, the failure patterns are similar, and so is the fix.
Book Your Mr-Glass Service in Cupertino Today
We’re an independent Mr-Glass service provider, not manufacturer-affiliated or authorized, and we run on one rule: do it right the first time or explain yourself twice. Call (866) 253-5808 to schedule a free estimate and get your enclosure right.
Written by Nelson Fung, Owner at Timberline Contractors, serving Cupertino since day one.