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ES Windows Construction in San Dimas, CA | Mason Remodeling Co West Covina
We provide independent ES Windows construction service throughout San Dimas, from the flatlands near Bonita Avenue up into the foothill neighborhoods north of Foothill Boulevard. Our crews replace, retrofit, and repair ES Windows on the ranch-style and two-story homes that define this city, and we do it without manufacturer authorization because we’ve spent years learning how these specific windows behave on San Dimas hillsides. Call (707) 760-7579 for a written estimate before any work begins. Our ES Windows sales & service experience runs deep, and we’re the independent shop that treats your window job like it’s our own house.

Why San Dimas Residents Choose Us for ES Windows Service
ES Windows are built to a specification, and that spec gets tested hard in San Dimas. The hot, dry summers bake the frames. The winter rains swell the wood and shift the soil. Isaac Pruett, our owner and a San Dimas General Contractor, spent decades swinging hammers across the San Gabriel Valley and knows exactly what happens to a 1970s ranch window when the ground under it moves. He trained through the construction technology program at Los Angeles Trade-Technical College, and he’s the reason we can walk into a San Dimas home, identify the ES model line by sight, and tell you whether a repair makes sense or a replacement saves you money. We’re background-checked, uniformed, and you get a photo of your technician before they show up. That’s the Threshold Standard, and it applies on every job we take in San Dimas.
Styles & brands we work with







Common ES Windows Construction Problems We Solve in San Dimas
- Sliding sashes jumping their tracks on ES 7600 Series windows. The hillside lots in San Dimas move. When stucco and older wood framing flex during summer heat and winter rain, the rollers on 7600 sliders lose their alignment and the panel jumps the rail. We pull the sash, inspect the roller assembly, and either replace the rollers with OEM parts or rebuild the rough opening so the new window sits square.
- ES 7200 Series single-hung sashes that slam shut or won’t stay open. Worn spiral balances are the usual culprit. Houses in San Dimas shift over time, and a balance that loses tension becomes a safety hazard when the upper sash drops without warning. We replace the balance assemblies and test the window through its full travel before we call the job done.
- Clogged weep holes on ES 7800 picture windows. Foothill brush and dry dust from the San Gabriel Mountains work their way into the frame channels. When winter storms hit, water pools against the glass and rots the aluminum cladding. We clear the drainage path, repair any corrosion, and confirm the weep system drains before buttoning the trim back up.
- ES 7300 casement cranks binding on north-facing walls. San Dimas homes with shaded elevations rarely get direct sun to keep the hinges and gears warm. Years of limited lubrication leave the crank operator stiff enough that the sash won’t close tight, and nighttime mountain air leaks right in. We service the operator mechanism and replace any stripped gears with spec-grade parts.
- Fogged glass from failed seals on older ES units. You’ll see this on nearly every San Dimas street with original windows from the 1960s and 1970s. The dual-pane seal fails, moisture gets between the panes, and the window’s insulation value drops. We replace the insulated glass unit when the frame is sound, and we’re honest when the frame is too far gone to save.
ES Windows Service in San Dimas: What Local Conditions Mean for Your Equipment

North of Foothill Boulevard is where we see the pattern most clearly. Homes up there sit on slopes that expand and contract with every rain event, and the original cast-iron drain pipes in those 1950s and 1960s builds have been corroding from San Dimas hard water for decades. During a full window replacement, we frequently coordinate with our plumbing crew to access those pipes while the wall is open, because ripping out an old ES window frame is often the cleanest path to the plumbing without tearing into stucco a second time. That’s the kind of sequencing you only learn by doing the work. A flatland contractor from West Covina or La Verne might never think to look for it. We do, because we’ve replaced ES Windows on more hillside ranch homes in San Dimas than we can count, and the houses keep teaching us the same lessons.
Our crew arrived at a hillside home near San Dimas Avenue to replace a fogged ES 7600 Series sliding window in a 1970s ranch. The homeowner had noticed the sash binding after a particularly rainy winter, and sure enough the frame had shifted enough to misalign the rollers. We removed the old window, corrected the rough opening with new flashing, and installed a new ES 7600 unit with tempered glass. The homeowner can now open the window with one hand, and the new weep system drains properly even after a heavy downpour.
ES Windows Models & Products We Service in San Dimas
We work on the four ES model lines most common in San Dimas housing stock: the ES 7600 Series sliding windows, the ES 7200 Series single-hung windows, the ES 7800 Series picture windows, and the ES 7300 Series casement windows. When a balance, lock, or piece of weatherstripping fails, we source OEM ES Windows replacement parts whenever the vintage still has them in production. Exact tolerances matter on these units, and aftermarket parts that are “close enough” will leak air and water within a season. For discontinued hardware on older San Dimas homes, we use quality aftermarket components that meet or exceed the original spec, and we’ll always tell you when a full replacement beats another round of repairs. Our trucks carry the most common ES hardware for the 1970s and 1980s ranch windows we see all over town, which means fewer trips back to the shop and less time waiting on parts.
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AfterES Windows Service Pricing in San Dimas
Here’s what ES Windows work actually costs in San Dimas, based on the jobs we’ve priced in this city’s housing stock over the years. Every figure below is a real range, not a teaser number. Your exact price depends on the window’s size, whether the rough opening needs correction, and whether you’re replacing one unit or a whole elevation. Our estimate is written and fixed before we start, so the number on the quote is the number on your invoice. No change orders, no add-ons, no surprises once the crew is on site.
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Backsplash Installation | $800 – $2,500 |
| Kitchen Remodel | $14,000 – $45,000 |
You should know what you’re getting before we ever pick up a tool. Call (707) 760-7579 and we’ll walk your ES Windows with you, measure everything that needs measuring, and hand you a written price.

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 – ES Windows Construction in San Dimas
We replace the insulated glass unit when the frame is still square and the hardware is serviceable. If the frame is corroded or the window is original to a 1960s San Dimas home, we’ll price both the glass-replacement path and a full window replacement so you can see the real numbers side by side. Call (707) 760-7579 for a written estimate on either option.
Worn spiral balances lose tension, and San Dimas hillside homes shift more than flatland houses, which accelerates that wear. The fix is replacing the balance assemblies with OEM parts when they’re available, and checking the sash track for misalignment at the same time. A window that slams shut is a finger-break waiting to happen, so don’t put this one off. Call (707) 760-7579 and we’ll take a look.
Dust from the foothills works into the crank mechanism, and without regular lubrication the gears bind. We open the operator housing, clean the gearing, replace any stripped teeth, and lubricate with a dry-film product that doesn’t gum up in San Dimas dust. If the operator is too far gone, we replace it. Most casement repairs run two to four hours on site.
Yes. We can replace weatherstripping, rebuild the sash seals, and swap faded single-pane glass for low-E insulated units when the frame profile allows it. That’s a common Bathroom Remodeling in San Dimas adjacent job on 1970s ranch homes where the original ES frames are still sound but the glass is doing nothing to stop the afternoon foothill sun. The honest answer is that some frames aren’t worth saving, and we’ll tell you if that’s your situation before you spend a dollar on improvements.
Homes north of Foothill Boulevard sit in the wildfire urban interface, and the defensible-space requirements for those areas make impact-rated glass a real consideration for any window facing the hills. Hardened glass and reinforced frames buy you time and protect the house envelope during wind-driven fire events. If you’re replacing windows on the north or east elevations of a foothill home, we’ll price both standard and impact-rated ES units so you can make the call with real numbers. Call (707) 760-7579 for a written quote.
Service Areas Near San Dimas
We run ES Windows service out to San Dimas service area and the surrounding foothill communities. If you’re in ES Windows service in West Covina, ES Windows service in Pomona, Walnut, or La Verne, our crews can reach you the same week. San Dimas is our home base for hillside work, and we know these neighborhoods block by block.
Book Your ES Windows Service in San Dimas Today
Call (707) 760-7579 and a live person answers, any hour, any day. We’ll schedule your free estimate, send you a photo of your technician before the visit, and hand you a written price for your ES Windows work in San Dimas before a single tool leaves the truck.
Written by Isaac Pruett, Owner at Mason Remodeling Co West Covina, serving San Dimas since 2004.











