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ES Windows Windows & Doors: The Santa Clarita Owner’s Guide
We stock and install ES Windows-compatible windows and doors across Santa Clarita, with typical installed replacement costs running $4,500-$15,000 for standard window replacement and $8,000-$25,000 for impact-rated units. Most ES Windows hardware, sash locks, and roller assemblies are on our trucks or available next-day through our verified supplier network. Homeowners usually discover the problem when a Santa Clarita Valley wind gust rattles a sash that no longer seats tight, or when condensation appears between panes on a unit that was clear last season.
Which ES Windows Models This Applies To
ES Windows operates in three main product tiers, and the part you need depends on which tier is installed in your home. The ES 100 Series uses a lighter-duty roller and single-point locking hardware common in tract builds from 2005-2015 across Valencia and Saugus. The ES 5000 Series upgrades to a stainless steel roller housing and multi-point lock mechanism, and the ES Impact Series carries heavier laminated glass with reinforced frames rated for Santa Clarita’s Santa Ana wind conditions.
To identify your unit, open the sash and look for the etched label in the glass corner or the stamped aluminum tag on the frame edge. The model prefix tells us which roller diameter (1-inch vs. 1.25-inch), lock keeper spacing (3.5-inch vs. 4.5-inch center-to-center), and glass thickness your frame accepts. We match OEM spec where it matters for warranty continuity, but we’ve also vetted aftermarket equivalents from Truth Hardware and Amesbury that meet the same cycle-test standards at lower cost. One compatibility gotcha: ES Windows changed its roller axle diameter in 2012 without changing the series number, so a pre-2012 ES 5000 roller will not seat in a post-2012 frame even though the housing looks identical. We verify this on-site before ordering.
Signs Your ES Windows Windows & Doors Is Failing

- The sash drifts or won’t stay open. This points to worn roller assemblies where the nylon wheel has flattened or the axle bushing has ovalized. In Santa Clarita’s dry heat, the factory lubricant dries to a gum that accelerates wear; we see this first on south-facing units in Canyon Country.
- Condensation between double-pane glass. The insulated glass unit (IGU) seal has failed, allowing moist air into the gap. Once the desiccant strip saturates, the fog becomes permanent and the Low-E coating degrades. This is not repairable; the IGU must be replaced.
- Multi-point lock won’t engage at all latches. The lock mechanism or keeper plates have shifted due to thermal expansion cycling, or the spindle has stripped. ES Windows hardware uses a proprietary spindle length on impact-rated units; a standard aftermarket replacement will not reach.
- Frame corner gaps or visible daylight. The thermal break or frame joinery has separated, usually from foundation settling or repeated thermal shock. In Stevenson Ranch, where hillside fill settles for years, we see this more often than on flat-grade Valencia lots.
- Excessive wind noise despite closed sash. The weatherstrip has compressed past recovery or the sash balance is weak, allowing the sash to lift slightly off the sill seal. The fix is specific: replace the pile weatherstrip or the balance cartridge, not both unless testing shows both failed.
Before
AfterReplacement Cost & What’s Included
| Service | Santa Clarita Price Range | What’s Included |
|---|---|---|
| Window Replacement (standard) | $4,500-$15,000 | Removal, disposal, new unit, installation, trim repair, basic interior seal |
| Impact Window Installation | $8,000-$25,000 | Rated unit, structural attachment per Santa Clarita wind zone, permit, inspection |
| IGU (glass-only) Replacement | $300-$800 per unit | Measure, order, install, argon fill, seal warranty |
| Roller / Lock Hardware Replacement | $150-$400 per sash | Diagnosis, correct part, adjustment, operation test |
| Weatherstrip Replacement | $75-$200 per sash | Remove old, clean channel, install new, verify compression |
The range widens with unit size, floor level (second-story carries ladder and drop-cloth time), and whether the original installation used proper shimming or shortcut foam. Under Clause 1 of The Haven Standard, we deliver a written price before any work starts, with line-item parts and labor separated so you see where the money goes. Our 365-Day Done Right Promise covers the installation; manufacturer defects are handled through the OEM warranty channel we document for you.
DIY or Call Us?

There’s safe checking, and then there’s work that belongs to someone with the right tools and liability coverage.
You can safely: verify the model label, photograph the failed component, check for obvious debris in the track, and confirm the lock is fully thrown before calling it broken. These steps save us time and save you a trip charge if the fix is that simple.
Do not attempt: removing an impact-rated sash (the weight exceeds 80 pounds on a standard 36×72 unit and the glass is laminated, so a drop creates a sharp, heavy hazard), adjusting multi-point lock keepers (misalignment stresses the frame and voids the warranty), or cutting sealant to extract an IGU (the vacuum break risks implosion, and resealing requires a controlled environment). We’re background-checked, uniformed, and carry the documented photo record standard on every visit. For ES Windows parts in Santa Clarita, call (747) 294-3985 and we’ll schedule a free estimate with the exact part in hand before work proceeds.
FAQs
Roller assemblies typically last 10-15 years in Santa Clarita’s dry heat, though south-facing units with dark frames can see 7-10 years due to thermal cycling stress. IGUs carry a 10-20 year seal warranty from most manufacturers, but we’ve seen failures at year 8 on units with poor initial installation. Call (747) 294-3985 for an exact quote on replacement - estimates are free.
Roller axles and lock spindles are replaceable as sub-components if we can source the exact match, but most ES Windows hardware is sold as a complete assembly and the labor to rebuild piecemeal exceeds replacement cost. IGUs cannot be repaired once the seal fails; the glass must be replaced. Call (747) 294-3985 for an exact quote - estimates are free.
Hardware replacement on-site takes 30-60 minutes per sash. IGU replacement requires ordering (5-10 business days for custom sizes) and 45 minutes install time. Full unit replacement is a full day for a typical Santa Clarita home with 8-10 openings. Call (747) 294-3985 to schedule - estimates are free.
We carry common ES 100 and ES 5000 Series rollers, locks, and weatherstrip profiles on our Santa Clarita trucks. Impact Series hardware and custom IGU sizes are ordered with next-day availability from our verified supplier. We confirm part match before scheduling install, so there’s no “we’ll figure it out when we get there.” Call (747) 294-3985 - estimates are free.
Rowan Construction Group Santa Clarita is an independent service provider and is not affiliated with ES Windows. We also stock parts for KraftMaid, Cambria, and Silestone products.
Ready to get your ES Windows unit working right? Call (747) 294-3985 to schedule your free estimate. We’ll bring the correct part, show you the written price before any work starts, and leave you with a documented photo record of what we found and what we fixed. Measure twice, document once, build it right the first time.
Written by Grant Rowan, Owner, Rowan Construction Group Santa Clarita at Rowan Construction Group Santa Clarita, serving Santa Clarita and nearby areas.







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