Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Mr-Glass Construction in San Antonio Heights, CA | Sycamore Contractors
We’re Sycamore Contractors, and we provide independent Mr-Glass window, door, and shower enclosure service across San Antonio Heights and the surrounding foothills. The short version: we fix, replace, and install Mr-Glass products without the dealership runaround, and we know how these particular units fail on steep, wind-exposed, fire-country lots. If your Mr-Glass windows are fogged, your sliding door is dragging, or your shower enclosure is leaking, call (877) 265-6284 and we’ll come take a look.
We are not affiliated with or authorized by Mr-Glass. We’re a general contractor that has spent years working with their product lines, and we give straight answers about what’s worth fixing, what’s worth replacing, and what the county will actually require. You can learn more about our broader Mr-Glass sales & service work across the region, but this page is about how we handle things here specifically.
Why San Antonio Heights Residents Choose Us for Mr-Glass Service
San Antonio Heights is not Upland. The lots are big, they climb, and the sun hits everything harder up here. A window or door that would last twenty years on a flat, shaded lot in the valley below can start failing in ten when it’s facing south into the brush with no tree cover. We see that difference in the field, and it shapes how we diagnose and repair Mr-Glass products.
Nate Calloway, the owner of Sycamore Contractors, grew up in Temecula’s Redhawk neighborhood and spent close to two decades running crews across Southwest Riverside County before expanding into the San Gabriel foothills. We apply the same principle to every hillside job: do it right the first time, or you’ll do it twice in the July heat. For Mr-Glass work, that means sourcing OEM parts when they’re available, using better aftermarket equivalents for wear items like rollers and gaskets when OEM supply has dried up, and being honest when a repair is just postponing a replacement.
We handle the full scope: window replacement, frameless glass shower enclosures, impact windows, sliding doors, and the framing and flashing around them. One contractor, every phase.
Styles & brands we work with
Common Mr-Glass Construction Problems We Solve in San Antonio Heights
Here’s what actually goes wrong with Mr-Glass products up here, and why we see so much of it:
- Fogged dual-pane windows and failed seals. San Antonio Heights gets nearly year-round UV exposure, and the temperature swings from a 55-degree night to a 100-degree afternoon cause vinyl and rubber seals to shrink and crack faster than they would at lower elevation. When we pull a fogged Mr-Glass 6000 Series window on a south-facing wall, the gasket has usually turned brittle and pulled away from the corner.
- Sliding door rollers that seize or grind. Hillside lots are exposed. Santa Ana winds drive grit and ash into track assemblies, and that grit gets ground into the roller bearings every time the door opens. On Mr-Glass sliding glass doors, the original rollers are often undersized for the load, so once they start binding, the track wears unevenly too.
- Frameless shower enclosure hinge and seal failure. Bathrooms that face south or west in San Antonio Heights go through thermal cycling daily. The glass expands and contracts, and the hinges at the top of a Mr-Glass frameless enclosure take the full stress. Over time, seals pull loose and the glass sags out of plumb, leaving gaps that leak onto the bathroom floor.
- Aluminum frame pitting and oxidation. During wildfire season, airborne ash settles on everything. Mr-Glass 4000 Series aluminum frames that sit within a mile of the chaparral line will show oxidation and finish wear in a few seasons if they’re not maintained. It starts as cosmetic, but it eventually eats at hardware and weatherstripping.
- WUI code compliance issues after replacement. Any time we change the size of a window or door opening in San Antonio Heights, San Bernardino County wants ember-resistant glazing and specific flashing details. We’ve helped homeowners who were told by a flat-land contractor that “it’s just a window swap” and then got flagged by the county. It’s not just a window swap up here.
Mr-Glass Service in San Antonio Heights: What Local Conditions Mean for Your Equipment
Here’s the thing that doesn’t show up on any national Mr-Glass page. San Antonio Heights is unincorporated, which means every structural change goes through San Bernardino County, not a city building department. If you replace a window or door and the opening changes at all, you’re almost certainly going to hit the county’s wildland-urban-interface review. What does that mean for your Mr-Glass equipment? It means the county may require ember-resistant glazing, particular flashing details, and sometimes defensible-space verification around the opening before they’ll sign off. A contractor who mostly works the flat grid subdivisions of Upland or Rancho Cucamonga won’t see this coming. We do, because we file these same permits on hillside lots off Mountain View Avenue and the streets that climb up toward the San Bernardino National Forest line. That requirement can add a week or two and some specific material costs, but it’s the difference between a job that passes inspection and one that gets red-tagged.
For Mr-Glass owners specifically, this matters. A sliding door that opens onto a hillside deck in San Antonio Heights isn’t just an exit; it’s a potential ember entry point during a wind event. The county treats it that way. We do too.
Mr-Glass Models & Products We Service in San Antonio Heights
We work on the full Mr-Glass residential product range, including the 4000 Series aluminum windows, the 6000 Series vinyl windows, Mr-Glass sliding glass doors, and Mr-Glass frameless shower enclosures. Our approach to parts is simple: OEM when we can get it, high-quality aftermarket when OEM supply is slow or discontinued. For common wear items like rollers, seals, gaskets, and hinge hardware, we stock what we need for fast turnaround across the 91784 ZIP code rather than waiting two weeks on a manufacturer order.
We also install Mr-Glass impact windows for homes that want the added protection against wind-driven debris, something that’s worth a conversation on exposed hillside lots. We bring options, you make the call.
See the difference
Before
After
Before
After
Before
AfterMr-Glass Service Pricing in San Antonio Heights
Costs here split between the product, the hillside access, and the county’s requirements. Here are the ranges we typically see across San Antonio Heights:
| Service | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Frameless Glass Shower Enclosure | $4,500 – $12,000 |
These numbers reflect both the material and the labor for a typical hillside access situation. Steeper lots with difficult staging, required WUI glazing upgrades, or county-required flashing details will push toward the upper end. Smaller, flat-lot-style jobs within San Antonio Heights can land at the lower end. Every estimate we provide is a written line-item quote, and it’s free. Call (877) 265-6284 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 you’re replacing a window with the same size and same rough opening, San Bernardino County typically treats it as a same-for-same swap and you may not need a permit. If the opening changes, or if the project involves a sliding door or any structural alteration, you will almost certainly need to go through the county’s building division and potentially their wildland-urban-interface review. We handle the paperwork either way. Call (877) 265-6284 if you want us to check your specific situation.
In our experience on San Antonio Heights hillside homes, the rollers fail because wind-blown grit and ash get into the track and grind the bearings apart. The original Mr-Glass rollers also aren’t always up to the weight of a large glass panel on a sloped deck. We replace them with stainless-steel aftermarket rollers that hold up better and ask about the exposure level when we do. If your door is dragging or feels crunchy, call (877) 265-6284 and we’ll tell you if it’s the rollers, the track, or both.
Yes, but it takes shimming, careful glass templating, and sometimes a plumb-cut filler panel. San Antonio Heights homes built into hillsides settle over time, and we regularly see bathroom walls that are out of plumb by half an inch or more. A frameless enclosure installed without addressing that will leak and sag. We measure, shim, and adjust before the glass is fabricated. Call (877) 265-6284 for an exact quote for your bathroom.
They can be, but it depends on the glazing and frame configuration. Standard dual-pane Mr-Glass windows are not automatically ember-resistant. For homes in the WUI zone, San Bernardino County often requires tempered or double-pane glazing with specific ember-resistant ratings. We’ll review your property’s defensible-space situation and the county’s current requirements before we order anything. If you want impact-rated Mr-Glass windows, we install those as well.
Replacing a frameless Mr-Glass shower enclosure here typically runs between $4,500 and $12,000, with the higher end reflecting larger enclosures, out-of-plumb wall corrections, and any curb or threshold work required. The estimate is free, and we’ll walk you through the trim and glass options before you commit anything. Call (877) 265-6284 to schedule a measurement.
Service Areas Near San Antonio Heights
We serve San Antonio Heights and the surrounding foothill and valley communities. Our crews also provide Mr-Glass service in La Habra for clients west of here, and Mr-Glass service in La Verne for the communities to the northwest. We also work in Upland, Rancho Cucamonga, and the unincorporated pockets between them. If you’re in the 91784 area or nearby, check our full San Antonio Heights service area page to see coverage details.
Book Your Mr-Glass Service in San Antonio Heights Today
If your Mr-Glass windows are fogged, your sliding door drags, or your shower enclosure leaks, call (877) 265-6284. We’ll schedule a free estimate, assess the county requirements, and give you a price you can plan around. From the roof down to the driveway, one contractor, every phase.
Written by Nate Calloway, Owner of Sycamore Contractors, serving San Antonio Heights and surrounding foothill communities.