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Mr-Glass Construction in San Antonio Heights, CA | Timberline Contractors
We provide independent Mr-Glass service across San Antonio Heights, from frameless shower enclosures to storefront glass and architectural glazing. Most of our work here falls into one of two buckets: a sagging door on a hillside slab that’s shifted, or mineral-etched glass from hard private-well water. Neither is a generic fix. We’re Timberline Contractors, a licensed general contractor serving San Antonio Heights, and we know the difference between a hinge that needs torque and a house that needs re-leveling.
If you’re dealing with a Mr-Glass enclosure that won’t close, glass that’s gone cloudy, or a remodel that needs county permits before the glass gets templated, call us at (866) 253-5808. We’ll come out, look at the framing and the glass, and tell you what’s actually going on.
Why San Antonio Heights Residents Choose Us for Mr-Glass Service
Nelson Fung founded Timberline Contractors after years of working on everything from Eastside bungalow remodels to mid-size commercial builds across the LA basin. He learned the trade formally at Los Angeles Trade-Technical College, then spent years swinging hammers on jobs where shortcuts showed up a season later as callbacks. His rule, and ours: do it right the first time or explain yourself twice.
That’s the lens we bring to Mr-Glass work in San Antonio Heights. We don’t swap a hinge and hope the sag goes away. We check whether the curb has moved, whether the jamb is still plumb, and whether the seal failure is from Santa Ana wind or a track full of foothill dust. We’re an independent Mr-Glass service provider, not an authorized dealer, and we make that distinction plainly so there’s no confusion about warranties.
For homeowners in 91784 who live on large lots with septic systems and private wells, that matters. A Mr-Glass enclosure installed against framing that was never plumb in a 1970s custom hillside build behaves differently than one in a tract home getting Upland Mr-Glass service. We account for that before we order parts.
Styles & brands we work with







Common Mr-Glass Construction Problems We Solve in San Antonio Heights
- Sagging frameless doors that drag the curb. Foothill slabs in San Antonio Heights sit on expansive clay that moves with seasonal moisture. When the slab shifts, hinge and pivot screws pull loose, and a Mr-Glass frameless door that closed cleanly in spring binds by the next dry season. We re-block the jambs, re-plumb the opening, and set new stainless hardware instead of cranking the old screws deeper.
- Mineral film and etching from private-well water. Hard well water leaves mineral film and etching on clear tempered glass far faster than treated municipal supply. It also attacks Mr-Glass hinges and clamps until they corrode and stain the tile. We see this constantly in San Antonio Heights, where most properties aren’t on city water.
- Seal failure from Santa Ana wind exposure. Exterior-facing glass and storefront framing on foothill properties takes wind loading that rattles the perimeter seals and lets dust work into slide tracks. By the time a homeowner notices the draft or the grinding track, the seal has usually been compromised for months.
- Door-to-panel gaps on older hillside homes. Mr-Glass enclosures installed against 1960s to 1980s framing that was never plumb end up with door-to-panel gaps no seal sweep can close. Water tracks out onto the curb, the sweep wears unevenly, and the homeowner assumes the glass is bad. It isn’t. The opening is.
- Chipped or etched panels that can’t be polished back. Some glass can be restored. Deep etching from years of hard well water can’t. When a Mr-Glass panel is beyond saving, we’ll tell you straight, then template a replacement to the actual opening rather than ordering stock that won’t fit the racked frame.
Mr-Glass Service in San Antonio Heights: What Local Conditions Mean for Your Equipment
San Antonio Heights is unincorporated San Bernardino County, not the City of Upland where you might find Rancho Cucamonga Mr-Glass service, and that single fact changes how Mr-Glass construction and shower enclosure work gets permitted here. A bathroom remodel that reconfigures a shower and its glass has to be permitted and inspected through San Bernardino County. On sloped foothill parcels, the county may also want grading and drainage review before the rough-in clears. That’s not a bureaucratic nuisance. It’s the county acknowledging what every contractor who works in 91784 already knows: water moves downhill, clay moves seasonally, and a shower that isn’t drained and flashed correctly becomes a foundation problem.
This is the piece of local knowledge most glass companies miss. They template the opening, order the panel, and never think about why the opening moved in the first place. If your Mr-Glass enclosure is going into a bathroom on a sloped lot with expansive clay, the glass is the last thing to spec. The waterproofing and the plumb come first.
Mr-Glass Models & Products We Service in San Antonio Heights
We work on the full Mr-Glass product family: frameless hinged shower enclosures, semi-frameless sliding shower doors, fixed glass panels and return screens, and storefront and architectural glazing systems. That covers most of what’s installed across San Antonio Heights homes and small commercial buildings.
On parts, our approach is simple. We source genuine Mr-Glass replacement hinges, seals, sweeps, and handles where they’re available. When a discontinued profile forces our hand, we use quality aftermarket hardware that matches the swing and load path of the original, not a bargain part that changes how the door carries its weight. We stock common hinge styles, sweeps, and seal profiles for faster turnaround on San Antonio Heights repairs, and we turn to local glass suppliers for custom templated panels when the opening demands it.
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AfterMr-Glass Service Pricing in San Antonio Heights
What you spend depends on whether we’re repairing hardware, replacing a panel, or rebuilding the opening around a new enclosure. Here’s where our San Antonio Heights pricing typically lands for the most common Mr-Glass-related projects:
| Project | Typical Range |
|---|---|
| Walk-In Shower Installation | $4,500 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Shower Replacement | $3,000 – $8,500 |
| Bathroom Remodel | $9,000 – $28,000 |
The spread comes down to glass size, framing condition, and whether the county requires drainage review on your parcel. A free estimate from us includes a look at the opening, the hardware, and the permit path before you spend a dollar. Call (866) 253-5808 to schedule one.
Serving San Antonio Heights, CA — Our Local Coverage Area
We’re based in the San Antonio Heights 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 San Antonio Heights
If the enclosure is coming out and a new one is going into the same rough opening with no plumbing changes, a permit is usually not required. If the job reconfigures the shower, moves the drain, or changes the curb, it is a remodel in unincorporated San Antonio Heights and San Bernardino County wants it permitted and inspected. We pull permits as the general contractor on remodel work, and we’ll tell you before the first panel gets templated. Call (866) 253-5808 if you want us to walk your specific project through the county’s requirements.
Most of the time in San Antonio Heights, the house is moving. Expansive clay on foothill slopes expands and contracts with seasonal moisture, and a slab that shifts even a fraction of an inch changes the plumb of the opening. We’ll measure the door, the jamb, and the curb. If the glass is intact and the hardware has room to adjust, the fix is framing work, not new glass. If the panel is etched or chipped, replacement is the better call.
It won’t ruin it overnight, but hard well water etches clear tempered glass faster than anything else we see in San Antonio Heights. Mineral film builds in the micro-pores of the glass, and once etching goes deep, polishing won’t bring it back. A squeegee after each shower and a water softener for the house both help. If the glass is already hazed or pitted, we’ll tell you honestly whether restoration or replacement makes sense. Call (866) 253-5808 and we’ll look at the panel.
Yes, and this is where working with a contractor beats working with a parts catalog. We template the replacement panel to the corrected opening, not to the original drawing. On custom hillside homes in 91784, openings have often moved an eighth of an inch or more since the original install. We measure the actual dimensions, order the tempered glass to match, and set it with hardware that carries the load the way the original design intended. For exact pricing, call (866) 253-5808 – the estimate is free.
Yes, and we say it all the time. If the framing and waterproofing behind the enclosure are sound, a new hinge, sweep, or seal often solves the problem for a few hundred dollars. If the opening has racked or the glass is etched, replacement is the better money and we’ll explain why in plain terms. Our goal is the right fix, not the biggest invoice. Call (866) 253-5808 for an honest assessment.
Service Areas Near San Antonio Heights
We run Mr-Glass service throughout the eastern foothills and the San Gabriel Valley. Beyond San Antonio Heights, we serve Claremont, Upland, Rancho Cucamonga, Alta Loma, and the surrounding 91784 corridor. For more on our work in adjacent communities, see our Mr-Glass service in Claremont page. If you’re closer to the coast, Mr-Glass service in La Palma covers that side of the basin. For a full look at our coverage, visit our San Antonio Heights service area page, and for details on the brand itself, see Mr-Glass sales & service.
Book Your Mr-Glass Service in San Antonio Heights Today
If a Mr-Glass door is sagging, binding, or clouding over in San Antonio Heights, don’t wait for the slab to move again. Call Timberline Contractors at (866) 253-5808 and we’ll schedule a free estimate, inspect the opening, and tell you what’s actually wrong with the glass, the hardware, or the house behind it. Nelson Fung and our crew work throughout 91784 with the county permits and local know-how the job requires.
Written by Nelson Fung, Owner at Timberline Contractors, serving San Antonio Heights and the surrounding Foothill communities.