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ES Windows Construction in Los Serranos, CA | Daly City Construction
We provide independent General Contractor – Los Serranos ES Windows construction service across Los Serranos, from single-unit replacements to whole-house window packages on two-story hillside homes. What makes our work here different is simple: we know these units fail differently on graded pads over expansive clay than they do on flat valley lots. Call (866) 505-5254 for a free estimate, and we’ll diagnose what’s actually happening before recommending a fix.

Daly City Construction is a full-scope general contractor, and our ES Windows sales & service work sits inside that broader scope. We pull, flash, and re-set these frames ourselves, which means the wall, the sill pan, and the rough opening get the same attention as the glass.
Why Los Serranos Residents Choose Us for ES Windows Service
Most window crews know the product. Fewer know what happens to that product when it’s set into a 1990s tract home on a graded Los Serranos hillside pad. We do. Noel Cabrera, our owner, came up doing framing and renovation work on fog-weathered homes, and he taught our crew to trace window failures back to the wall, not just the sash. When a slider stops latching in Los Serranos, we don’t swap the latch and hope. We open the wall and find out why the frame moved.
We use ES OEM sash, glass, and roller assemblies when the unit is structurally sound. When OEM supply is slow, we use quality aftermarket balances, weatherstripping, and fasteners that meet or exceed the original spec. We’re independent, which means we tell you what the house needs, not what a brand script says.
Styles & brands we work with







Common ES Windows Construction Problems We Solve in Los Serranos
- Fogged or hazy insulating glass. Inland summer heat cycling takes a toll on west- and south-facing units in Los Serranos. The seal fails, moisture gets between the panes, and the unit fogs. We replace the IG unit with OEM glass when available, re-set the sash, and check the frame for racking at the same time.
- Out-of-square frames and failing latches on sliders. Expansive clay under a graded pad doesn’t move evenly. When the rough opening racks, the ES vinyl slider frame follows. The result is a slider that sticks, binds, or won’t latch. We re-shim, re-flash, or replace depending on how far the wall has moved.
- Water staining and sill rot at the bottom corners. Units installed without a positive-drainage pan or back-dam start showing water damage after the first heavy winter rain. Los Serranos sees real rain in January and February, and a missing sill pan becomes obvious fast. We cut out the rot, install a proper pan, and re-set the unit.
- Corroded rollers, tracks, and hinge hardware. Santa Ana winds push dust and grit into every track on the foothills. Long dry cycles mean that grit stays there. Rollers seize, tracks wear, and hardware corrodes. We replace rollers and tracks as part of a slider rebuild, then re-balance the sash.
- Stucco cracking at the perimeter. When the clay expands after rain, the stucco around an ES window corner cracks first. That crack is a water path. We patch the stucco return and check the flashing detail behind it, because the crack is usually a symptom of frame movement, not just old stucco.
ES Windows Service in Los Serranos: What Local Conditions Mean for Your Equipment
Los Serranos sits in the rolling foothills of the ES Windows service in Chino Hills, where steep lots, expansive clay soils, and strict hillside grading ordinances make foundation and retaining-wall work a specialty. After heavy winter rains, hillside homeowners here often find new cracks in driveway slabs and separating retaining walls. That same ground movement is what racks window openings. A two-story Los Serranos home on a graded pad has an uphill wall and a downhill wall, and those two walls do not move the same way. The uphill wall sits into the cut, where the ground is more stable. The downhill wall sits over fill and clay that swells and shrinks with every rain cycle. The ES Windows opening on the downhill wall racks, while the uphill wall stays square. That’s why the downhill slider fails first. Flashing, shim, and sill-pan details have to be designed per elevation, not copied from a flat-lot spec. A window crew that treats both walls the same is guessing, and on a hillside, guessing costs money.
ES Windows Models & Products We Service in Los Serranos
We service Pomona ES Windows service and ES Windows vinyl single-hung and double-hung replacement units, vinyl horizontal sliders and sliding patio doors, picture and fixed-frame units with divided-light grids, and the aluminum-frame sliders common in 1980s to 2000s tract installs across Los Serranos. Most of the housing stock here is from that era, which means those original aluminum sliders are hitting end of life. We stock common roller assemblies, balances, and weatherstripping for fast Los Serranos turnaround. When a unit is racked or the sill pan is rotted, we recommend full replacement with a properly flashed ES unit rather than patching a wall problem.
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AfterES Windows Service Pricing in Los Serranos
What you pay depends on how many units, whether the wall has moved, and whether you’re replacing like-for-like or upgrading to impact-rated glass. Here’s what our work typically runs in Los Serranos:
| Service | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Kitchen Remodel (with window work) | $14,000 – $45,000 |
| Roof Repair (flashing at window heads) | $400 – $1,800 |
Our free estimate includes opening the wall where needed, checking the sill pan and rough opening, and a written line-item quote. No change orders snuck in later. Call (866) 505-5254 to schedule yours.

Serving Los Serranos, CA — Our Local Coverage Area
We’re based in the Los Serranos 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 Los Serranos
Usually both. Fogged glass is a failed IG seal from inland heat cycling. Sticking sliders on a graded Los Serranos pad usually mean the rough opening has racked over expanding clay, something we also address with our ES Windows repair in Montclair. We check both at the same estimate visit, because replacing the sash without addressing the racked frame just moves the failure a few years down the road. Call (866) 505-5254 for an exact diagnosis and a free quote.
Expansive clay swells when it gets wet. That swell pushes against the foundation and racks the wall assembly, and window corners are the weak point where the stress shows first. The stucco crack is a symptom of frame movement behind it. We open the wall, check the rough opening, and re-flash and re-shim as needed. Call (866) 505-5254 to have it looked at before the next rain cycle.
For replacement work, no. A grading review isn’t required for window swaps, even on hillside lots. What you do need is a contractor who checks per-elevation movement and specs flashing and sill pans accordingly. We do that on every Los Serranos job, because the downhill wall and uphill wall are different structures. Call (866) 505-5254 for a free estimate that includes that check.
Depends on your elevation and exposure. Most Los Serranos homes don’t face direct coastal wind, but Santa Ana wind events plus flying debris from dry hillside vegetation are real. If you’re on an exposed upper slope facing the canyons, impact-rated glass is a legitimate upgrade for wind-blown debris protection, not overkill. We’ll tell you straight if a standard thermally broken unit is the smarter use of the budget. Call (866) 505-5254 for a straight answer on your lot.
That’s the clay. The downhill wall sits over fill that swells and shrinks more than the cut on the uphill side, so the downhill rough opening racks farther out of square over time. We’ve seen this exact pattern across Los Serranos for years. Our fix is per-elevation: re-shim and re-flash the downhill unit to handle the movement, rather than repeating the same flat-lot install that failed. Call (866) 505-5254 and mention which wall it’s on.
Service Areas Near Los Serranos
Our main service footprint covers Los Serranos service area and the surrounding Chino Hills foothill communities. We also run ES Windows service calls into Yorba Linda for ES Windows service in Yorba Linda when the job needs a specific flash-and-shim approach on sloping lots. Further out, we handle ES Windows service in Midway City for flat-lot tract homes where the failure profile is different. If you’re nearby, call and we’ll tell you if we can get a crew to you this week.
Book Your ES Windows Service in Los Serranos Today
Tell me what the house needs, not what you think it needs – then we’ll figure out the right fix. That’s how we work every ES Windows job in Los Serranos. Call (866) 505-5254 for a free estimate, and we’ll open the wall if we need to before we quote.
Written by Noel Cabrera, Owner at Daly City Construction, serving Los Serranos since the day we first opened a racked slider on a hillside pad and found the real answer behind the stucco.