Windows & doors
Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
ES Windows Construction in Cupertino, CA | Daly City Construction
We provide independent ES Windows construction, replacement, and repair across Cupertino’s 95014 and 95015 ZIP codes, and if there’s one thing that separates ES Windows work here from anywhere else on the Peninsula, it’s the city itself. Cupertino doesn’t approve just any window. The city’s tree preservation ordinance, its design review standards, and the sheer number of aging 1950s to 1970s houses getting full remodels means every opening has to be measured, flashed, and documented with a level of care out-of-town crews rarely expect. As a full-scope general contractor, we handle the framing, the waterproofing, and the window all under one license, so you’re not coordinating three trades when the inspector asks why the rough opening is two inches off. Call (866) 505-5254 for a free estimate.

Why Cupertino Residents Choose Us for ES Windows Service
We’ve installed and serviced ES Windows vinyl and aluminum lines across the Peninsula — including ES Windows repair in Los Altos — long enough to know exactly how they hold up under Bay Area sun, winter rain, and the dry-season heat that beats on south- and west-facing walls in Cupertino. That matters because ES Windows isn’t a brand you can service well from a catalog. You have to know which balance systems were used in which years, which IGUs are still available, and which aluminum series took the bronze anodized finish that shows wear differently than paint. We source replacement sashes, balances, and glass directly rather than guessing at measurements.
Noel Cabrera, who runs Daly City Construction, trained in construction technology at City College of San Francisco and spent years on residential jobs across San Mateo and San Francisco counties before building out this company. His crew treats every window opening the same way he treated the fog-weathered homes he grew up around in Daly City: check the rough opening first, fix the flashing second, and only then set the window. That order of operations is exactly what Cupertino’s building inspectors want to see. As an independent contractor, we’re not authorized by or affiliated with ES Windows. We bring our own installation and waterproofing standards, which in a detail-obsessed market like Cupertino is usually the difference between a window that passes final inspection and one that doesn’t. Here’s how we work: browse our ES Windows sales & service page for the full scope of what we handle.
Styles & brands we work with







Common ES Windows Construction Problems We Solve in Cupertino
- UV-distorted vinyl sashes and frames. Cupertino’s dry season runs long and hot, and south- and west-facing ES Windows vinyl units take the full brunt of it. We regularly see sashes that have warped just enough to bind in the track, which shreds weatherstripping and leaves gaps you can feel from across the room. Replacement sash or full unit, depending on how far the distortion has gone.
- Fogged dual-pane IGUs from seal failure. A lot of 1990s and 2000s ES vinyl units in Cupertino are hitting the end of their insulated glass unit life right now. The seal between the panes fails, moisture gets in, and suddenly you’re looking through a permanent haze. We source OEM-compatible IGUs to the exact unit dimensions, not close enough.
- Water intrusion at corners and sill pans. Cupertino’s wet winters work water into flashing details that were done marginally twenty or thirty years ago. We see dry rot in the rough opening behind ES sliders and hung windows where water has wicked in at the corners. This one usually means pulling the unit, repairing the framing, and reflashing before reinstalling.
- Failed balances, tilt latches, and screen frames. Older ES vinyl sliders and hung windows eventually stop latching or sealing tight. The balance system wears out, the tilt latch snaps, or the screen frame corrodes. We keep common hardware on hand for faster Cupertino turnarounds and order OEM where available.
- Mis-sized replacements from tree-ordinance workarounds. When a protected oak or redwood forces a non-standard rough opening, the wrong replacement window gets ordered and then nothing fits. We measure actual openings, confirm unit dimensions before ordering, and build custom jamb extensions or footings where the opening is anything but standard.
ES Windows Service in Cupertino: What Local Conditions Mean for Your Equipment
The single thing that makes ES Windows work different in Cupertino is the city’s tree preservation ordinance. It’s not a suggestion. If a protected redwood or oak sits within the building footprint or close to a proposed opening, the city often requires an arborist report and special footings before you touch the framing. In practice, that means window and door rough openings regularly end up custom-sized, with deeper jamb extensions or protective measures near root zones. A standard off-the-shelf ES Windows order won’t work in those situations. We’ve had jobs where the opening was set to clear a mature oak’s root zone by eighteen inches, which meant the window had to be ordered to a non-catalog width and the sill pan built up to keep grade. Builders from out of town get surprised by this. Around here, it’s just how the city works.
Combine the tree ordinance with Cupertino’s lot-by-lot design review, and every ES Windows project we do here gets measured with a level of scrutiny that most neighboring cities don’t apply. The city isn’t just checking your window is level. They’re checking that the replacement fits the neighborhood’s architectural standard. So when we set an ES vinyl slider off Hollenbeck Avenue near Memorial Park, we’re not just matching the old opening. We’re matching what the reviewing planner expects to see. That’s not something a generic window company page will ever tell you, because it’s not in their training manual. It’s in ours. If you’re planning work in Cupertino, start with the Cupertino service area page to see how we approach projects across the city.
ES Windows Models & Products We Service in Cupertino
We work on the full ES Windows residential lineup: vinyl single-hung and double-hung replacement windows, horizontal sliding vinyl windows, the aluminum series including bronze and anodized finishes, and vinyl patio and sliding glass doors. On the parts side, our policy is straightforward. We use OEM ES Windows sashes, balances, and glass where they’re still available, and quality aftermarket hardware only where the OEM part is discontinued. We always confirm actual unit measurements before ordering anything. If a frame is structurally sound, we recommend glass-and-hardware repair over full replacement. But once distortion, rot, or repeated seal failures set in, replacing the whole unit is the honest call. No one in Cupertino wants to pay for a second repair on a window that already told you it’s done.
See the difference
Before
After
Before
After
Before
AfterES Windows Service Pricing in Cupertino
Every ES Windows job in Cupertino gets priced on the actual condition of the openings, the unit sizes, and what the city requires. Here are the market ranges we work within:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
What drives the number is almost always the rough opening. A clean opening that fits a standard ES double-hung is on the lower end. A protected tree forcing a custom-sized unit, rotted framing that needs repair, or a design review that asks for matching finish details pushes it higher. Your free estimate covers the full scope: opening inspection, measurements, parts availability check, and a written line-item quote so you know what you’re paying for before any work starts. Call (866) 505-5254 to schedule yours.
Serving Cupertino, CA — Our Local Coverage Area
We’re based in the Cupertino area and know this community well, with ES Windows service in Saratoga and nearby cities. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – ES Windows Construction in Cupertino
Generally yes, if the frame is still square and the seal failure is the only problem. We replace the insulated glass unit with an OEM-compatible IGU sized exactly to your unit. If the frame has warped or the weatherstripping is shot, we’ll tell you the honest assessment. Call (866) 505-5254 and we’ll take a look.
Yes. If a protected tree sits near the opening, the city may require an arborist report and special footings, and the rough opening often gets custom-sized to clear root zones. That affects unit dimensions, jamb extensions, and sometimes sill pan height. We handle that coordination so you don’t have to piece it together yourself.
We pull the unit, inspect the rough opening for dry rot, repair any damaged framing, and reflash the sill pan and corners before reinstalling. Then we reset trim so water sheds away from the opening. It’s the only fix that lasts in this climate.
They hold up if they’re installed correctly and the south- and west-facing units get proper flashing and weatherstripping. The vinyl can distort under prolonged dry-season UV if the unit is already compromised. We stock replacement hardware and glass for the common failure points so Cupertino homeowners don’t wait weeks for parts.
Usually yes. We order to the original ES window line and finish where it’s still available, and confirm measurements against the existing openings so the new unit matches sightline and operation. Where the exact line is discontinued, we’ll show you the closest match. Call (866) 505-5254 for an exact quote; estimates are free.
Service Areas Near Cupertino
We serve Cupertino and the surrounding South Bay and Peninsula, including Daly City, Broadmoor, Colma, Visitacion Valley, Noe Valley, and Brisbane. For ES Windows work just north of Cupertino, see ES Windows service in Milpitas. For the city just east, see ES Windows service in Santa Clara.
Book Your ES Windows Service in Cupertino Today
We’re independent ES Windows specialists — with experience in ES Windows in Sunnyvale — who understand what Cupertino’s housing stock, climate, and city processes demand. Call (866) 505-5254 to schedule your free estimate. Noel and our team will come out, assess the openings, and give you a written scope and price.
Written by Noel Cabrera, Owner at Daly City Construction, serving Cupertino and the Peninsula.