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Mr-Glass Construction in Muscoy, CA | San Mateo Construction
We provide independent Mr-Glass shower enclosure, mirror, and glass panel service across Muscoy, and the one thing that separates our work here is knowing what we’ll find behind the walls before we hang glass. Muscoy’s unincorporated county status, foothill parcels, and high share of manufactured homes and unpermitted additions mean most Mr-Glass jobs need framing correction and county-ready rough-ins, not a stock panel ordered off a plan. Call (855) 901-7266 for a free estimate.
San Mateo Construction handles the full scope: Mr-Glass frameless bi-fold and pivot enclosures, semi-frameless sliding doors, mirrored medicine cabinets, and custom-cut tempered glass panels. We serve all of Muscoy’s 92405 ZIP code, from the flat lots near the San Bernardino line up to the foothill parcels that back against the national forest boundary, and also provide Mr-Glass service in San Bernardino proper.
Why Muscoy Residents Choose Us for Mr-Glass Service
We’ve spent years fitting Mr-Glass enclosures into Muscoy homes that were never built to modern tolerances. Out-of-square openings, non-standard stud spacing, walls that lean a half-inch over four feet: that’s the norm here, not the exception. Our crews template on site rather than trusting a plan, because in an unincorporated area where additions often went in without permits, the plan rarely matches the wall.
Noel Carrington, our owner, grew up pouring concrete footings with his father in San Mateo and has spent three decades in residential work across California. His approach on a Muscoy job is simple: measure the actual opening, correct the framing if it needs it, and only then order or cut the glass. We stock OEM Mr-Glass replacement hardware and seals where available, and quality aftermarket rollers, hinges, and stainless fasteners where OEM lines are discontinued. We are an independent Mr-Glass service provider and are not authorized, sponsored, or endorsed by Mr-Glass.
Styles & brands we work with







Common Mr-Glass Construction Problems We Solve in Muscoy
- Racked frameless pivot doors that bind or swing open on their own. Older site-built and manufactured-home baths in Muscoy rarely have plumb walls. A frameless Mr-Glass pivot enclosure hung on an out-of-square opening will bind at the hinge or drift open. We correct the framing with sistered studs and template the glass to the corrected opening instead of forcing a stock panel to fit.
- Etched and pitted glass from hard well water. Muscoy sits on the fringe of county water service, and plenty of parcels run on wells. The mineral content etches tempered glass faster than treated municipal water does. If the panel is sound, we clean and seal it; if the etching has gone cloudy, replacement is the honest call.
- Santa Ana wind-driven grit wearing down hinges and handles. The same winds that push fire season into the foothills carry fine dust and grit that works into chrome hinges, rollers, and handles. We see finish failure and stiff operation years earlier on Muscoy homes than on coastal properties. We swap in stainless hardware where OEM chrome is worn past saving.
- Corroded builder-grade rollers and track on sliding enclosure doors. Cheap rollers and aluminum track corrode in Muscoy’s hard-water and wind-grit combination, then the door jumps track or drags. We upgrade to better-grade rollers and stainless fasteners so the door moves like it should.
- Leaking bottom curbs on tub-to-shower conversions in unpermitted additions. When a bathroom was built as a converted shop or unpermitted addition, the curb flashing and waterproofing were often skipped entirely. We find rotted framing at the curb and fix it before the new Mr-Glass enclosure goes in.
Mr-Glass Service in Muscoy: What Local Conditions Mean for Your Equipment
Muscoy is an unincorporated San Bernardino County island, wedged between the city of San Bernardino and the foothills of the San Bernardino National Forest, with many homeowners nearby seeking Mr-Glass repair in Highland as well. That means glass work here is permitted and inspected through San Bernardino County Land Use Services rather than a city building department. The practical effect for Mr-Glass owners is this: when we open a wall to correct framing for an enclosure, the county inspector is going to look at whatever that wall is attached to. Because many foothill lots along roads off Cajon Boulevard carry unpermitted additions, converted shops, and outbuildings that were never on county records, a shower enclosure job can quickly become a framing correction plus a permit package. We’ve learned to plan for that from the first site visit. The old-lot geometry here, with self-maintained roads and non-conforming parcel lines, also means we schedule glass deliveries to match site access, because a panel truck doesn’t always make it up every driveway in Muscoy.
Mr-Glass Models & Products We Service in Muscoy
We work on the full Mr-Glass lineup: frameless bi-fold and pivot shower enclosures, semi-frameless sliding shower doors, mirrored medicine cabinets and vanity mirrors, and custom-cut tempered glass panels and shelves. On enclosures, we use OEM Mr-Glass replacement hardware and seals where they’re available and match the unit. Where OEM is discontinued, we’re upfront about it and use quality aftermarket rollers, hinges, and clear sealant that hold up to Muscoy’s hard water and wind grit. We keep common stainless fasteners and roller sets stocked locally so a Muscoy service call doesn’t stall waiting on a parts shipment.
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AfterMr-Glass Service Pricing in Muscoy
What you’ll pay depends on what’s behind the wall, not just the glass. A clean walk-in shower installation on square framing runs the lower end; a tub-to-shower conversion in an unpermitted addition where we’re correcting studs and bringing the rough-in up to county code runs higher. Here’s the range for common Mr-Glass-related work in Muscoy:
| 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 |
A free estimate includes a site measurement, an honest read on whether the opening is square or needs framing work, and a line-item quote. No change orders after we agree on scope. Call (855) 901-7266 to schedule one.
Serving Muscoy, CA — Our Local Coverage Area
We’re based in the Muscoy 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 Muscoy
Yes. Muscoy is unincorporated San Bernardino County territory, so glass and enclosure work in a wet area is permitted and inspected through San Bernardino County Land Use Services, not a city building department. We handle the permit paperwork as part of the job. Call (855) 901-7266 and we’ll tell you what your specific project needs.
We’ve done this many times in Muscoy, where converted shops and add-on baths are common on foothill parcels. The work goes like this: we open the wall, correct the framing, bring the rough-in to what San Bernardino County will sign off on, pull the permit, and only then template and hang the Mr-Glass enclosure. The glass is the easy part; the county-ready framing is the job. Call (855) 901-7266 for an exact assessment.
Over time, yes, especially on parcels with well water. Mineral deposits build up and eventually etch the temper. You can slow it with a squeegee after each shower and a soft-water system if you’re on well water. Once the glass is cloudy through and through, replacement is the real fix. We can assess whether your panels are cleanable or done. Call (855) 901-7266.
Usually, yes. If the glass panel is intact and the frame isn’t warped, we replace the rollers, track, and seals, and re-hang the existing door. If the glass is cracked, etched, or the frame is bent, replacement is the honest route. We’ll tell you which one you’re looking at before we quote. Call (855) 901-7266 for a free estimate.
Carefully, and with smaller trucks when the driveway won’t take a panel van. We schedule deliveries to match site access, and on the steep foothill parcels we bring panels up in manageable sections and carry them the last stretch by hand when needed. It’s slower, but broken glass on a dirt road helps nobody. Call (855) 901-7266 and we’ll scope your access before we quote.
Service Areas Near Muscoy
We work across Muscoy and the surrounding San Bernardino County and San Mateo County areas. That includes Mr-Glass service in Tustin to the south, Mr-Glass service in Jurupa Valley to the east, and the broader Muscoy service area across the 92405 ZIP. For the full picture on what we handle, see Mr-Glass sales & service.
Book Your Mr-Glass Service in Muscoy Today
Tell me what you actually need, and we’ll figure out the right way to build it. Call (855) 901-7266 to schedule your free estimate. We measure on site, quote line-item, and handle the county permit so your Mr-Glass enclosure goes in square the first time.
Written by Noel Carrington, Owner at San Mateo Construction, serving Muscoy and surrounding San Bernardino County communities.