Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
ECO Window Systems Construction in Los Altos, CA | Ashford Contractors
We’re a Los Altos General Contractor serving the area with full-scope ECO Window Systems service, from replacement windows to whole-home additions that integrate ECO units. What makes our ECO work here different is straightforward: we understand how these windows and doors behave on mid-century ranch homes in Los Altos, where second-story additions and heritage trees shape every opening. Call (877) 752-3868 for a free estimate.
Why Los Altos Residents Choose Us for ECO Window Systems Service
Most window contractors can swap a unit. Few can tell you why the ECO sliders on your 1950s ranch are binding at the corners while the shaded side fogs faster than the sunny side. We’ve spent years working on ECO Window Systems sales & service across the Peninsula, and we’ve learned how this brand’s vinyl frames, glazing packages, and hardware respond to Los Altos specifically: wet winters, dry summers, clay soil movement, and mature oak canopies that throw half a house into shade.
Glen Mossier grew up in Foster City’s Marlin Cove, watching lagoon-side homes get rebuilt after water damage. That taught him early that construction is what keeps a house standing through decades of Bay Area weather. He brought that mindset to Ashford Contractors, and it’s why our crew treats every window opening as part of a larger envelope, not an isolated swap.
We work on ECO products as an independent contractor, not as an authorized ECO dealer. That distinction matters. It means our recommendations are based on what the unit actually needs, not what a manufacturer program tells us to sell. We stock OEM glazing and hardware for ECO units whenever available, and we keep quality aftermarket sealed units and weatherseal on hand for models where OEM supply has dried up.
Styles & brands we work with
Common ECO Window Systems Construction Problems We Solve in Los Altos
- Fogged or failed insulated glass units. We see this on west- and south-facing ECO windows in Los Altos after a decade of UV exposure. The tell is haze or condensation between the panes. It’s not just cosmetic; a failed IGU loses its thermal barrier, and in Los Altos winters that means cold glass and higher heating bills.
- Vinyl frame distortion and sash binding. Older ECO sliders exposed to sustained afternoon heat with no shade can distort at the corners. The sash starts to drag or stick. We re-set the frame and hardware where possible, and we’re honest when the frame has moved past the point of repair.
- Weatherstripping and pile-seal breakdown. Wind-driven winter rain gets past worn seals along the tracks, especially on Los Altos ranches with shallow overhangs. The water sits on the sill, and over time it finds its way into the subfloor. We replace the pile seal and re-bed the track before the damage spreads.
- Failed tilt-latch and balance hardware. Tilt-in sashes on ECO double-hungs wear out their balance mechanisms. The sash stops staying up, or it slams when you release it. We stock the common balance sizes and replace them on the spot in most cases.
- Patio door track and roller wear. ECO vinyl patio doors in Los Altos take a beating from summer dust and winter moisture. Rollers grind, tracks get scored, and the door gets harder to move until one day it doesn’t. We replace rollers, clean and re-align tracks, and swap the door only when the frame itself has failed.
ECO Window Systems Service in Los Altos: What Local Conditions Mean for Your Equipment
Here’s what we know from ECO Window Systems repair in Los Altos Hills and nearby zip codes that you won’t find on a generic ECO page. Los Altos is in the middle of a rebuild wave. Original single-story ranch homes from the 1940s through 1960s are getting second-story additions, and the city’s tree-protection ordinance means many of those lots keep their mature oaks and redwoods. The trees shade first-floor walls that used to get full sun. Shade changes everything for window glazing: less solar heat reaches the glass, so the exterior pane stays cooler, and condensation forms more readily when warm interior air meets cool glass. We routinely see ECO units on shaded walls fail their seals sooner than identical units on sunny walls, even when the windows are the same age. On top of that, when we’re adding a second story, we have to match the new ECO units to whatever’s already in the first-floor openings. Different glazing, different profiles, and suddenly the elevation doesn’t read as one house. We handle that matching work because we’ve done it on enough Los Altos additions to know what the city’s design review expects, and what the existing ECO units can and can’t be matched to.
On a second-story addition off a mid-century ranch near ECO Window Systems repair in Stanford, the owners wanted the new upper-floor windows to read as the same family as the original ECO sliders still on the first floor. We matched profiles and glazing where ECO still supplied them, replaced two fogged first-floor sealed units that had been shaded by the lot’s mature canopy, and re-set hardware on the binding sliders so the whole elevation looked consistent. The result was a blended facade that kept the low-slung ranch character the neighborhood expects.
ECO Window Systems Models & Products We Service in Los Altos
We work on the full ECO Window Systems residential line: vinyl single-hung and double-hung replacement windows, slider and horizontal rolling windows, picture and fixed-frame windows with tempered glazing, and ECO vinyl patio doors. For repairs, we source OEM glazing and hardware whenever it’s available so the sash and balance geometry stay true. Where OEM supply has dried up, we use quality aftermarket sealed units and weatherseal that we’ve tested on ECO frames. Our Los Altos trucks carry the common balance sizes, tilt latches, pile seals, and roller sets, so most repairs happen in one visit.
See the difference
Before
After
Before
After
Before
AfterECO Window Systems Service Pricing in Los Altos
Window and addition pricing in Los Altos runs higher than neighboring cities because of the age of the housing stock and the engineering that older ranch foundations require. Here’s what we quote most often for ECO Window Systems work:
| Project | Typical Range in Los Altos |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Full Kitchen Remodeling | $14,000 – $45,000 |
| Home Addition | $45,000 – $130,000 |
What drives the price is scope: how many units, what glazing package, whether we’re matching existing ECO profiles on an addition, and what the opening looks like once we get into it. A free estimate from us includes a written line-item quote, and we’ll tell you which ECO components can be repaired versus replaced. Call (877) 752-3868 to schedule yours.
Serving Los Altos, CA — Our Local Coverage Area
We’re based in ECO Window Systems in Loyola and nearby, and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – ECO Window Systems Construction in Los Altos
Yes, we can usually match profiles and glazing when ECO still supplies the original lines, and we’ll source the closest available profile when a line has been discontinued. For any addition or replacement, bring us photos of the existing units and we’ll identify what’s matchable before you commit to anything. Call (877) 752-3868 and we’ll walk the site with you.
Shaded glass stays cooler on the exterior pane, so interior moisture condenses on it more readily, and the seal flexes through a wider temperature range. In Los Altos, where heritage oaks and redwoods shade first-floor walls, we see failed seals cluster on the shaded elevations. It’s a real pattern, not a coincidence. If you’re seeing haze between the panes, call (877) 752-3868 and we’ll inspect the units.
They can, especially if your lot has heritage oaks or redwoods. The city’s tree-protection ordinance can require an arborist report and restrict work near root zones. Window replacements that don’t disturb the ground rarely trigger the ordinance, but any addition or foundation work near a protected tree may. We handle the permitting path as part of our general contracting scope, so you don’t have to manage the arborist, the planner, and the inspector yourself.
We repair when the frame is sound and the issue is a failed sealed unit, worn balance, or broken tilt latch. We only recommend full replacement when the frame is distorted, multiple units have failed glazing at once, or the repair cost approaches the price of a new unit. We’ll show you the numbers and let you decide.
No. Ashford Contractors is an independent general contractor, not an authorized ECO dealer. That’s why we can be straight with you about which repairs are worth doing and which units should be replaced, without a manufacturer program steering the recommendation. We work on ECO products because Los Altos has a lot of them, and because we know how they hold up here.
Service Areas Near Los Altos
We serve Los Altos and the surrounding Peninsula communities, including Foster City, Redwood Shores, Belmont, San Mateo, San Carlos, and Highlands-Baywood Park. For ECO Window Systems work in neighboring areas, see our Los Altos service area page. We also provide ECO Window Systems service in Mountain View and ECO Window Systems service in Noe Valley.
Book Your ECO Window Systems Service in Los Altos Today
Whether you’re replacing a few fogged units or adding a second story that needs to match your existing ECO windows, we’ll give you a straight answer and a written quote. Call (877) 752-3868 to schedule your free estimate for ECO Window Systems service in Los Altos.
Written by Glen Mossier, Owner at Ashford Contractors, serving Los Altos and the greater Peninsula.