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ES Windows Construction in Santa Clara, CA | Penhallow Remodeling San Jose
Independent ES Windows service across Santa Clara costs between $4,500 and $15,000 for a typical window replacement, and we’re one of the few local contractors who can match existing ES sightlines on a tract home without tearing out the original envelope. What makes our work different here is simple: we plan around Santa Clara’s archaeological review rules on the north side, so your remodel doesn’t stall after the wall is open. Trevor Nash runs our Santa Clara ES Windows construction team, and he’ll put a written price in your hand before a single tool leaves the truck. Call (669) 274-2362 for a free estimate.
Why Santa Clara Residents Choose Us for ES Windows Service

We’ve been installing and servicing ES Windows across Santa Clara for over a decade. The high-end aluminum and vinyl lines architects specify around here are particular about installation tolerances, and our crews know those tolerances from the factory floor outward. Trevor grew up in Los Angeles, trained at Los Angeles Trade-Technical College, and spent the better part of two decades running remodeling jobs across the South Bay, including a stretch of kitchen and bath gut-jobs in Willow Glen that he still calls some of his cleanest finish work. That experience matters when you live in a 1950s ranch with original slab foundations and a wall that hasn’t been opened since Eisenhower was president. We also provide ES Windows sales & service guidance whenever a repair won’t pencil out and replacement makes more sense. Give me the real problem and I’ll give you the real number.
We’re an independent ES Windows service provider operating as Santa Clara service area specialists under the Kingswell standard. That means a written 365-Day Done Right Promise on every project. If the window we install fails inside that year, we come back and fix it. No service call, no re-inspection fee. You’ll also get background-checked, uniformed technicians on every visit, and a live person answers our phone 24/7. No voicemail maze. That’s non-negotiable.
Styles & brands we work with







Common ES Windows Construction Problems We Solve in Santa Clara
Santa Clara’s specific combination of sun, soil, and housing stock creates a handful of ES Windows failures we see over and over. Here they are, along with what actually causes them here:
- Failed perimeter gaskets on ES 900 Series windows. Homes along El Camino Real take decades of high sun load, and the Santoprene seals eventually dry out and shrink. The windows still look fine, but airborne dust from the 101 and Lawrence Expressway sifts in. We replace the gaskets with genuine ES material rather than generic weatherstripping that won’t seat correctly.
- Sprung or corroded stainless steel springs in ES 600 Series casement operators. The older orchard soils around Santa Clara hold alkaline irrigation water, and that alkalinity works into the hardware over time. If your casement crank spins without moving the sash, the spring’s gone. We stock replacement operators for the 600 Series so this is usually a same-visit fix.
- Warped ES 200 Series vinyl sashes on full-sun exposures. Santa Clara gets a high number of cloudless days each year, and south-facing walls absorb that heat day after day. The vinyl sashes soften, bow, and start sticking. We’ll check the frame before recommending replacement sashes, because sometimes the jambs need realignment too.
- Morning fogging on windows that shouldn’t fog. This isn’t a seal failure in most Santa Clara cases. The marine layer rolls in overnight, and when your house warms up in the morning, condensation forms on the interior glass. We diagnose whether it’s the glazing unit or simply the climate, and we won’t sell you a replacement if you don’t need one.
- Rotted wood framing around ES Windows in bathroom remodels. Shower steam finds its way around older window frames, and the wood sill rots from the inside. We see this in original ranch homes throughout Santa Clara. The fix is removing the frame, repairing the opening, and re-flashing with stainless steel Z-flashing before reinstalling the window.
ES Windows Service in Santa Clara: What Local Conditions Mean for Your Equipment
Here’s something that only applies to ES Windows owners in Santa Clara, and it catches people off guard on a regular basis. A permit expediter at City Hall jokes that every remodel on the north side of El Camino Real triggers an archaeological review because of the old orchard sites underneath. That joke is real policy. Our permit runs north of El Camino Real almost always trigger the city’s archaeological review for those old orchard sites, and we schedule that review into every ES Windows project there so your remodel isn’t stalled after we’ve already opened up the wall. If you live on streets like Warburton Avenue or any of the post-war ranch tracts north of El Camino, you need a contractor who knows this is coming. Most window companies don’t mention it until the city stops the job. We put it in the schedule from day one, and we’ve done enough of these runs to know which review paths move quickly and which ones need extra time before we ever touch a sill. That’s the difference between a three-week window replacement and a three-month headache.
ES Windows Models & Products We Service in Santa Clara
We work on the full ES Windows line that Santa Clara architects and builders have specified over the years: the ES 900 Series, ES 600 Series, ES 200 Series, and the ES Premium Twin-Line. The 900 Series shows up most often in the mid-century ranches and custom homes along the north side, while the 200 Series appears in newer infill condos and townhomes. Our parts approach is straightforward: we always try genuine ES Windows replacement hardware and weatherstripping first, because their custom extrusions and factory-bent glazing beads are hard to match. When a frame is beyond a straightforward part replacement, we’ll tell you honestly if a full window replacement is the smarter long-term move rather than chasing recurring leaks. We keep a rolling stock of common 600 Series operators, 900 Series gaskets, and 200 Series sashes for fast Santa Clara turnaround, so the part you need is often already in one of our local vans.
See the difference
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AfterES Windows Service Pricing in Santa Clara

Here are real numbers for the work we do in Santa Clara. The window replacement range covers removal, haul-away, new flashing, and installation of ES Windows to match your existing sightlines. A kitchen or Bathroom Remodeling in Santa Clara runs higher because you’re also paying for framing, waterproofing, and finish work around the window. What changes the number most is the condition of the rough opening once we open the wall. Older Santa Clara ranches can have dry rot hidden behind the drywall, and that’s where costs climb.
| Service | Typical Santa Clara Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Window Replacement | $4,500 – $15,000 |
Every estimate starts with a free visit. We measure the openings, check the framing, and hand you a written line-item price before any work begins. That number is the number on the invoice. Call (669) 274-2362 to schedule yours.
Serving Santa Clara, CA - Our Local Coverage Area
We’re based in the Santa Clara 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 Santa Clara
The ES 600 Series casement handles an east-facing wall well because the crank-operated sash stays sealed against the frame, and its narrower glazing unit reduces the added weight that a full fixed panel would introduce. For a window that doesn’t need to open, the ES 900 Series fixed frame with a thermally broken aluminum extrusion gives you the same clean sightline with less hardware. We’ll check your existing header and shear wall before recommending a model, since Santa Clara’s seismic zone adds structural requirements to any window on an exterior wall. Call (669) 274-2362 and we’ll walk the wall with you.
That’s the Santa Clara marine layer, not water inside the window. The fog moves in overnight, cools the exterior glass, and when your furnace or morning routine warms the inside air, condensation forms on the room-facing surface. If the fog is between the panes and stays there all day, that’s a failed glazing seal and we’ll replace the insulated glass unit. If it’s only on the interior surface and wipes away, the window is fine and the climate is just doing what it does here. Call (669) 274-2362 for an exact assessment if you’re not sure which one you have.
Yes. We install new ES Windows from the same model family as your originals and match the frame finish, glazing, and sightline so the exterior elevation looks identical. We’ve done this on post-war tract homes throughout Santa Clara where the HOA or the homeowner’s own taste wants the original character preserved. If your model’s discontinued, we’ll source a compatible ES line and confirm the sightline before we order anything. Call (669) 274-2362 with your model number and we’ll tell you what’s available.
Most 600 Series replacement sashes are running two to three weeks from our local supplier right now, with some finish colors adding a week. We keep common white and bronze sashes on hand for fast turnarounds, but a custom color match will take longer. If your sash is still operable and the issue is the crank or spring, we can often fix it the same day without waiting on a factory sash. Call (669) 274-2362 for a current lead time on your specific configuration.
We do, and this is one of the most common ES Windows construction issues in older Santa Clara homes. The fix is to remove the window, cut out the rotted wood, rebuild the rough opening with treated lumber, and re-flash the opening with stainless steel Z-flashing before reinstalling the window. Then we seal the interior side for steam exposure. If the rot is extensive, we’ll factor the repair into the Santa Clara General Contractor bathroom remodel price as a line item. Call (669) 274-2362 and we’ll tell you what we’re looking at before any work starts.
Service Areas Near Santa Clara
We run ES Windows construction projects across the South Bay, including San Jose, Mountain View, Los Gatos, Cupertino, and Los Altos. If you’re in a neighboring city, you’ll find specific service pages here: ES Windows service in Mountain View and ES Windows service in San Jose. Most of our Santa Clara jobs start with a call from a homeowner in one of these areas who needs a contractor who actually shows up.
Book Your ES Windows Service in Santa Clara Today
Call (669) 274-2362 for a free estimate. We’ll walk your windows, check the openings, and hand you a written price before you commit to anything. A live person answers our phone around the clock, so you’ll never leave a message and wonder if anyone heard it.
Written by Trevor Nash, Owner at Penhallow Remodeling San Jose, serving Santa Clara since the Kingswell standard began in 2004.












