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ES Windows Construction in Ontario, CA | Penhallow Remodeling Riverside
We provide independent ES Windows construction, repair, and replacement across Ontario, CA. If you own a home or commercial building here with ES Windows 7000 Series aluminum or 9000 Series vinyl, we’re the crew that knows how those frames behave after two decades of inland sun and hard water. Call (341) 895-1170 for a free estimate, and you’ll get a written price before we pick up a tool. That’s just how this works.
Ontario sits in California’s Climate Zone 10, the hottest inland valley zone in the state. That single fact drives nearly every ES Windows failure we see here, from warped vinyl sashes on west-facing stucco walls to glazing seals that give up after fifteen summers above 100°F. We’re not factory authorized, and we don’t pretend to be. What we are is a local crew that has pulled, rebuilt, and reinstalled enough ES Windows units in Ontario to know exactly what fails and what’s worth fixing. For broader context on our ES Windows sales & service work, we keep our parts sourcing transparent and our repair recommendations honest.
Why Ontario Residents Choose Us for ES Windows Service

Ontario’s housing stock is dominated by single-family homes built from the 1950s through the 1980s. Those homes share a few common traits: stucco exteriors, slab foundations, and original windows that have rarely been touched since installation. Many of those originals are ES Windows aluminum frames, especially the bronze-finished 7000 Series that went into thousands of tract homes across the Inland Empire. We know that product line down to its balance shoes and interlock profiles.
Trevor Nash, our owner, grew up in Los Angeles and learned the trade at Los Angeles Trade-Technical College, where the lesson was simple: know what you’re getting into before you swing a hammer. That’s carried into how we approach ES Windows work in Ontario. We don’t sell full replacements when a sash rebuild and new balances will do the job. We stock genuine ES Windows hardware where it’s still available, and when the factory has discontinued a part, we match it with commercial-grade aftermarket components rated for inland UV exposure and hard water. You get a straight answer about what’s repairable and what isn’t, with the price written down before work starts. Our Ontario service area coverage includes every neighborhood from the historic downtown core to the northern expansion areas.
Styles & brands we work with






Common ES Windows Construction Problems We Solve in Ontario
- Fogged and mineral-etched insulated glass units. Ontario’s summer heat plus hard water sprinkler overspray is a brutal combination for glazing seals. After 15 to 20 years, the seal fails, moisture gets between the panes, and you’re left with permanent fog and white mineral etching. We replace just the failed glass unit, not the whole frame, unless the frame itself is corroded or out of square.
- Warped vinyl sashes that bind and won’t lock. On west-facing walls of 1970s and 80s stucco homes, direct afternoon sun pushes surface temperatures well past what vinyl sashes were designed to handle. The sash warps, the locking points misalign, and the window either won’t close or won’t secure. We square the opening, rebuild the sash, and get the lock engaging cleanly again.
- Aluminum frame corner corrosion. Slab foundations in Ontario mean sprinkler heads sit close to the building envelope. Runoff hits the lower corners of sliding doors and picture windows, the caulk separates, and corrosion creeps in. You’ll see water stains on interior drywall and a white, powdery crust on the frame corners. We cut out the corrosion, treat the metal, and reseal with materials spec’d for inland heat.
- Failed interlock seals and brittle weatherstripping on old sliding doors. The original ES Windows weatherstripping from the 1970s turns yellow and brittle. During Santa Ana wind events, the failed seals let dust pour in around the door edges, and your cooling bill climbs. We rebuild the interlock with modern replacement profiles that actually seat.
- Stiff rollers and broken balances on 7000 Series sliders. The original balances and rollers in these aluminum sliders wear out, and when they do, the door or sash feels like it weighs two hundred pounds. We replace them with commercial-grade equivalents that handle the fine dust and temperature swings Ontario gets.
ES Windows Service in Ontario: What Local Conditions Mean for Your Equipment
Here’s the detail that separates Ontario from every neighboring city. Ontario’s building code requires window replacements in existing homes to meet California Title 24 low-e and SHGC requirements specific to Climate Zone 10. That’s the hottest inland valley zone in the state. A contractor driving in from a coastal city typically applies their local standard, which is a milder climate zone with different solar heat gain coefficients. If they install glass spec’d for a coastal zone, you get a window that looks fine on paper and performs poorly in Ontario’s July heat. Your cooling load goes up, your energy bills climb, and the new glass fogs just as fast as the old because the seal wasn’t rated for the thermal stress. Along Euclid Avenue, where many homes date to the 1950s and 60s, we’re regularly called in to correct exactly that mistake. That’s why every ES Windows replacement we quote in Ontario includes the correct Climate Zone 10 glass package, stated on the written estimate line by line.
ES Windows Models & Products We Service in Ontario
We work on the full line of ES Windows products that went into Ontario’s tract homes and commercial buildings over the past five decades. That includes the ES Windows 7000 Series aluminum, which is the bronze-finished workhorse you see on 1960s and 70s homes throughout the city. We also service the ES Windows 9000 Series vinyl, common in 1980s and 90s construction including condominium and apartment complexes. And we handle the ES Windows Euroline thermally broken aluminum, which shows up in tilt-up tenant improvements and some newer residential work.
Our parts approach is simple: genuine ES Windows hardware and balances when the factory still stocks them. For discontinued 7000 and 9000 Series components, we match with equivalent-quality commercial-grade aftermarket balances, rollers, and weatherstripping rated for inland UV and hard water. We keep the common failure parts stocked locally so we’re not waiting on a freight shipment from a distributor in another state. For homeowners in their Riverside coverage area, we apply the same parts sourcing standard every time.
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AfterES Windows Service Pricing in Ontario

You want real numbers. Here’s what ES Windows work typically runs in Ontario, based on the scope of the job and the condition of your existing frames.
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Insulated Glass Unit Replacement (per window) | $300 – $800 |
What drives the number up or down? Frame condition is the big one. If your ES Windows aluminum frames are square and corrosion-free, you’re paying for glass replacement and maybe new weatherstripping. If the frames are corroded at the corners or the openings have moved, you’re looking at full unit replacement. Window count, glass package, and whether the opening needs any structural correction all factor in. Your free estimate from our General Contractor in Ontario includes a written line-item breakdown so you see exactly where every dollar goes before you commit. Call (341) 895-1170 to schedule that estimate.
Serving Ontario, CA - Our Local Coverage Area
We’re based in the Ontario 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 Ontario
No. Fogged glass means the insulated glass unit’s seal has failed, not necessarily the frame. ES Windows aluminum frames often outlast their glass by decades. We replace just the failed glass unit in most cases, as long as the frame is structurally sound and square. If the frame shows corner corrosion or the opening has shifted, then full replacement becomes the honest call.
Yes. Bronze anodized aluminum was the standard ES Windows finish for 1970s tract construction across Ontario. When we rebuild sashes or replace hardware on those units, we match the finish so the repair doesn’t stand out. We’re not going to hand you a bright silver roller housing on a bronze door.
Most ES Windows 9000 Series vinyl sashes are repairable. Warping in afternoon sun is common on west-facing Ontario homes, but a warped sash doesn’t mean the whole Bathroom Remodeling in Ontario window has to go. We square the opening, rebuild the sash with new balances and rollers, and replace the glass if needed. Full frame replacement only makes sense when the vinyl itself is cracked, severely warped, or the frame corners have separated.
Hard water stains are cosmetic on the glass surface, but the same sprinkler overspray that causes them accelerates glazing seal failure over time. Worse, water pooling at the frame corners from sprinklers is what causes the aluminum corrosion we see on slab-foundation homes throughout Ontario. If you’re getting hard water building up on your windows, we recommend checking the sprinkler throw pattern while we’re out there.
Yes, in many cases. If your existing ES Windows aluminum or vinyl frames are square and corrosion-free, we can rebuild the units with new Climate Zone 10-compliant low-e insulated glass without tearing out the frames. That gets you current Title 24 energy performance at a lower cost than full replacement. Call (341) 895-1170 for an exact quote on your specific window sizes and glass package. Estimates are free, and the number we give you is the number on the invoice.
Service Areas Near Ontario
Our ES Windows service covers Ontario and the surrounding Inland Empire communities. We’re regularly out in Anaheim for ES Windows work, plus San Bernardino, Claremont, and Menifee. If you’re within a reasonable drive of Ontario, we can schedule your estimate and service without any trouble.
Book Your ES Windows Service in Ontario Today
If your ES Windows units are fogged, binding, corroded, or just plain worn out, we’ll give you a straight answer and a written price. Call (341) 895-1170 to schedule your free estimate in Ontario. Trevor and the crew will show up when we say we will, and the number we hand you is the number on the invoice.
Written by Trevor Nash, Owner at Penhallow Remodeling Riverside, serving Ontario and the Inland Empire since 2004.












