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Mr-Glass Construction in San Dimas, CA | Mason Remodeling Co West Covina
We provide independent Mr-Glass window and door service across San Dimas, from sash balance replacements to full frame retrofits on hillside lots. The one thing that makes our work here different is simple: we’ve rebuilt hundreds of Mr-Glass systems in this city’s specific conditions, and we know exactly how San Dimas’s dry heat, winter rains, and foothill soil chemistry attack these products over time. We’re not affiliated with Mr-Glass, and we’ll never claim to be. Call (707) 760-7579 for a straight answer and a free estimate.
Our crews understand Mr-Glass hardware at the component level. Whether you own a 1960s ranch slider near Via Verde or a 1980s two-story off Gladstone, we can tell you what’s failing, what’s worth fixing, and what belongs in a parts bin. Isaac Pruett, our owner, learned the trade through the construction technology program at Los Angeles Trade-Technical College before spending decades on jobs across the San Gabriel Valley. That experience means we don’t guess at window problems. We diagnose them.
Why San Dimas Residents Choose Us for Mr-Glass Service
Most window companies in San Dimas will happily sell you a replacement whether or not you need one. We take a different approach. If a Mr-Glass sash balance is worn but the frame is square and the glazing is tight, we’ll replace the balance and charge you $150 to $400 instead of quoting a $4,500 window job. That’s the difference between a parts-minded crew and a sales team.
We also show up with what the job needs. For Mr-Glass sales & service, that means stocking new-old-stock balances, rollers, and locks when they’re still available and price-sensible. When they’re not, we use top-grade aftermarket sash cam pivots, block-and-tackle balances, and double-durometer weatherseal that often outlast the originals. Every technician arrives in a clean marked uniform, shows a photo ID badge at the door, and is introduced by name and photo before the visit. Isaac runs the crew by one rule: “You should know what you’re getting before we ever pick up a tool.”
Styles & brands we work with
Common Mr-Glass Construction Problems We Solve in San Dimas
- Failed balance springs and worn pivot bars in double-hungs. San Dimas’s hot, dry summers bake the lubricant out of sash balances, and the constant expansion and contraction in foothill soils shifts frames just enough to throw pivot bars out of alignment. The result is a window that slams shut or refuses to stay open in upstairs bedrooms. We replace balances in pairs, because one worn spring means its partner is close behind.
- Cracked seals and baked-out glazing tape on west-facing insulated units. The afternoon sun hits west-facing walls hard here, and Mr-Glass insulated glass units take the brunt of it. After a decade or two, the glazing tape turns brittle, the seal fails, and you get fog between the panes. We rebuild the glazing pocket and install fresh double-durometer weatherseal before setting new glass.
- Corroded roller assemblies and bent tracks on aluminum sliders. Foothill drainage and sprinkler overspray keep the sill wet on many San Dimas properties. On Mr-Glass aluminum sliding doors, that means zinc-plated rollers rust to the track and the door gets harder to move every season. We replace the roller carriages and, when the sill pan is compromised, we replace the pan too.
- Stripped gear mechanisms and broken crank arms on casement windows. San Dimas’s dry air makes weatherstripping stick. Homeowners force the crank, and eventually the gear strips or the arm snaps. This is one of the most common repairs we do on Mr-Glass casements in the foothills north of Foothill Boulevard.
- Corroded steel sill pans on hillside sliding doors. This is the San Dimas signature failure. Nearly every Mr-Glass sliding door we service in the hillside tracts north of Foothill Boulevard has a galvanized steel sill pan corroded by decades of acid-tinged runoff from chaparral and decomposed granite. That means full sill pan replacement, not just roller swaps.
Mr-Glass Service in San Dimas: What Local Conditions Mean for Your Equipment
Here’s a checkable fact about San Dimas that shapes our Mr-Glass work more than anything else: the city sits in the foothills of the San Gabriel Mountains, and the hillside lots north of Foothill Boulevard drain water and soil runoff that carries tannic acid from chaparral and mineral salts from decomposed granite. That runoff wicks under sliding door thresholds every winter. On a Mr-Glass aluminum slider, the galvanized steel sill pan is the first thing to go. It rusts from the inside out, the track loses its anchor points, and suddenly the door drags or binds. A generic repair page will tell you to replace the rollers. That’s half the fix at best. We replace the sill pan with a thermoplastic unit that won’t corrode, then set the new rollers on a clean, level track. On a recent job on Via Verde, we pulled a Mr-Glass 145 sliding door that had seized completely. The zinc-plated rollers had rusted to the track after years of winter rain wicking under the threshold. We replaced the roller carriages, installed a new thermoplastic sill pan to stop the capillary draw, and realigned the interlock with a fresh Mr-Glass locking stile. The door now glides one-handed, and the homeowner stopped bracing it shut with a broom handle.
Mr-Glass Models & Products We Service in San Dimas
We service the Mr-Glass lines most common in San Dimas homes: the 145 Series sliding windows, the 8300/8400 series vinyl replacement windows, the hinged patio door with internal blinds, and the thermal break aluminum window line. We also install frameless glass shower enclosures, offer Bathroom Remodeling - San Dimas, full window replacements, and impact windows rated for foothill defensible space requirements. When original Mr-Glass hardware is still available and sensibly priced, we use it. When it’s not, we install aftermarket components chosen for how they perform in this climate: block-and-tackle balances that don’t seize in dry heat, rollers with sealed bearings that shrug off sprinkler overspray, and weatherseal that stays flexible when temperatures swing 40 degrees between summer nights and winter mornings.
See the difference
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AfterMr-Glass Service Pricing in San Dimas
What you’ll pay depends on what’s actually wrong. A sash balance replacement runs $150 to $400 per window. A full window replacement in San Dimas runs $4,500 to $15,000, and impact windows run $8,000 to $25,000 depending on size, frame material, and defensible space requirements. Balances are per-window. Full replacements are per-opening, including flashing, trim, and disposal. Your free estimate includes a written line-item quote before any work starts, and every job carries our 365-Day Done Right Promise: if the work isn’t right within a year of completion, we make it right at no cost to you. Call (707) 760-7579 for exact numbers on your project.
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Mr-Glass Sash Balance Replacement (per window) | $150 – $400 |
The framing on a 1960s ranch window often needs more prep than the window itself. The drywall returns, interior casing, and stucco patching all get line-itemed separately, so you’ll see exactly where every dollar goes. No lump-sum quotes that grow later, no verbal estimates that turn into surprises on the final bill. Written price, every project, before a single tool is unpacked.
Serving San Dimas, CA - Our Local Coverage Area
We’re based in the San Dimas 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 Dimas
Hillside drainage and the acid-tinged runoff from chaparral and decomposed granite corrode the galvanized steel sill pan under the door. Once the pan rusts, the track loses its anchor and the rollers bind against the corrosion. The fix is a full sill pan replacement with a thermoplastic unit, not just a roller swap. Call (707) 760-7579 and we’ll assess your door for free.
Usually it’s the balance spring. In San Dimas’s dry heat, the lubricant inside the balance breaks down, the spring loses tension, and the sash drops. If the pivot bar is also worn, the sash can jam in the jamb. We replace balances in pairs and check the pivot bars at the same time. A balance replacement runs $150 to $400 per window. Call (707) 760-7579 for an exact quote on your specific window.
Some Mr-Glass hardware from the 1970s is still available as new-old-stock, including certain crank arms and locking stiles. When original parts aren’t available or the price doesn’t make sense, we install aftermarket replacements engineered for this climate. We’ll tell you plainly which option fits your window and your budget. Call (707) 760-7579 and we’ll check parts availability while you’re on the phone.
San Dimas foothill homes fall under wildfire defensible space requirements that affect glazing choices: many hillside properties need tempered or dual-pane impact-rated glass, and some require ember-resistant frame materials. We install impact windows rated for these zones, and our written quotes specify exactly which glazing and frame meet the current code for your lot. Call (707) 760-7579 for a free assessment of your openings.
That’s a failed seal on the insulated glass unit. Winter temperature differences between indoors and outdoors pull moisture into the air gap between the panes. In summer, the glass warms and the moisture evaporates, so the fog temporarily clears. The seal is dead either way. We replace the IGU and rebuild the glazing pocket with fresh tape and weatherseal. Call (707) 760-7579 for a quote on replacing the affected units.
Service Areas Near San Dimas
We serve San Dimas and the surrounding San Gabriel Valley communities. If you’re in Mr-Glass service in West Covina territory or across the border in Mr-Glass service in Pomona, we cover those neighborhoods too. Walnut, La Puente, and La Habra are all within our normal service range. For a full look at our San Dimas service area, see the linked page.
Book Your Mr-Glass Service in San Dimas Today
Call (707) 760-7579 to schedule your free estimate. We’ll give you a written price before any work starts, and we’ll tell you exactly who’s coming to your door, by name and photo, before they arrive. If a Mr-Glass window or door is giving you trouble in San Dimas, we’ll sort it out without drama.
Written by Isaac Pruett, Owner at Mason Remodeling Co West Covina, our General Contractor in San Dimas serving the San Gabriel Valley since 2004.
