Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterWindow Company in Los Altos, CA
Most window and door projects in Los Altos are whole-home premium replacements on 1950s – 1970s California ranch homes, with custom-dimension units running $800 – $2,800 per opening depending on spec. The city’s unique housing stock, persistent marine-layer condensation on original aluminum single-pane windows, and non-standard rough openings from oversized 1960s picture windows make this a market where stock units rarely fit and every job demands exact measurement. We carry PGT, CGI, CWS, and ES Windows products, and our crews serve Los Altos from our San Francisco Bay Area dispatch office. Call (562) 478-8017 to schedule your free estimate.
Why Los Altos Homes Are Different
Los Altos sits in a South Bay microclimate where cool marine layer air rolls in from the San Francisco Bay each morning, creating persistent condensation on aging aluminum single-pane windows. That moisture drives more replacement calls here than in inland Santa Clara County cities, and it means we often find water staining, sill rot, and failed glazing when we remove the original units.
The housing stock is remarkably uniform: almost entirely single-family residential, majority built 1950 – 1975 as low-profile California ranch style with large-format aluminum picture windows and hollow-core sliding glass doors. These homes rarely saw intermediate renovations. Owners held for decades, so contractors encounter original frames, original glass, and original hardware all failing simultaneously. The oversized, custom-dimension picture windows designed to frame garden views were non-standard from day one. Even a slight change in visual proportion is unacceptable to owners undertaking million-dollar renovations, so we budget for fully custom-ordered units and avoid any conversation about infill framing. Tech-wealth homeowners here routinely specify Marvin Signature aluminum-clad wood, NanaWall folding glass walls, and European lift-and-slide patio doors, systems that are exceptional requests in neighboring Mountain View or Sunnyvale but routine job specs in Los Altos.
Our Main Los Altos Services
Los Altos homeowners call us most often for these three services, each with its own dedicated page and local pricing.
Window Replacement in Los Altos
Window replacement in Los Altos typically means removing original 1960s aluminum single-pane units with failed seals, condensation between lites, or corroded frames. We measure every rough opening twice because these custom-dimension picture windows were built to specific garden-view proportions that owners want preserved exactly. Our crew arrives with shoe covers and drop cloths, and we follow C.A.R.E. values on every visit: Clean up like it’s our own home, Ask before we move anything, Respect quiet hours, and Explain the price before starting work. Window Replacement in Los Altos covers full-frame versus insert replacement, permit handling, and complete price ranges.
Window Installation in Los Altos
New window installation in Los Altos most often happens during whole-home gut renovations or teardown-rebuilds on $3 – 5M+ lots. We coordinate directly with architects and builders on rough openings, flashing details, and waterproofing integration, particularly critical given the marine-layer moisture these homes face. Our written price covers the full scope, including any structural framing adjustments for modern energy-code compliance, before any work starts. Window Installation in Los Altos details new-construction specs, code requirements, and timeline expectations.
Door Installation in Los Altos
Door installation here ranges from replacing original hollow-core sliders with thermally broken aluminum lift-and-slide systems to installing NanaWall folding glass walls that open entire walls to backyard entertaining spaces. We handle the heavier structural headers these wide-span units require and coordinate permit drawings when the opening size changes. Every install gets the 365-Day Done Right Promise stamped on the job. Door Installation in Los Altos covers patio door types, hardware options, and security features.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Los Altos
We stock and install PGT, CGI, CWS, and ES Windows products, with access to ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux lines through our Cedarwell network. Most custom-ordered units arrive within 4 – 6 weeks, and we coordinate delivery to minimize storage time on your property. See our brands for full specifications and warranty details.
Pricing for Window Company in Los Altos, CA
| Service | Typical range in Los Altos |
|---|---|
| Standard vinyl double-hung replacement | $800 – $1,400 per opening |
| Fiberglass casement replacement | $1,200 – $1,900 per opening |
| Aluminum-clad wood picture window, custom dimension | $1,800 – $2,800 per opening |
| Full-frame replacement with structural repair | $2,000 – $3,200 per opening |
| Lift-and-slide patio door, 3-panel | $4,500 – $7,500 per unit |
| Folding glass wall system (NanaWall or equivalent) | $1,200 – $1,800 per linear foot |
| Entry door with sidelite, fiberglass | $3,200 – $5,500 per unit |
| Entry door with sidelite, steel | $2,800 – $4,800 per unit |
| Sliding glass door replacement, standard 6-foot | $2,200 – $3,800 per unit |
| Permit and inspection coordination | $350 – $650 per project |
Prices in Los Altos run higher than regional averages because nearly every project involves custom-dimension units, structural header modifications for oversized openings, or premium hardware upgrades. We put every price in writing before any work starts, with no change orders unless you request additional scope.
Neighborhoods We Serve in Los Altos
We work across all of Los Altos, from the tree-lined streets of the original downtown grid to the hillside properties along the Foothill Expressway corridor. Crews typically arrive within scheduled windows throughout the city, with dispatch coordinated from our San Francisco Bay Area office.
- Loyola Corners
- North Los Altos
- South of El Camino Real
- Portola Valley Ranch adjacency
- Random Hills area
Service Area – Cities Near Los Altos
Our crews regularly work in neighboring communities and can schedule estimates across the southern Peninsula and South Bay. We serve Mountain View, CA to the east, Stanford, CA to the northeast, Palo Alto, CA to the north, and Menlo Park, CA to the northwest, with the same written-price guarantee and 365-Day Done Right Promise on every job.
Serving Los Altos, CA - Our Local Coverage Area
We’re based in the Los Altos 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 About Window Company in Los Altos
We typically schedule estimates within 3 – 5 business days for Los Altos homeowners, with installation timelines depending on custom unit lead times. Call (562) 478-8017 to check current availability, estimates are free.
Yes, the City of Los Altos requires permits for most window and door replacements, and we pull them as part of our standard scope. Our team handles the application, drawings, and inspection scheduling so you don’t wait in line at City Hall.
Absolutely. We ask about nap times, quiet hours, and pet routines before arriving, and our C.A.R.E. values include respecting your family’s time. We use drop cloths to protect floors, pet-safe sealants where alternatives exist, and send a photo of the cleaned space before leaving. Call (562) 478-8017 to schedule your free estimate.
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Los Altos Customers Say
"Replaced six windows. The crew laid runners through the house and vacuumed each room as they finished. With a crawling baby, that no mess thing meant a lot. Windows are gorgeous."
- Rosalind Kemp"Lovely windows and a tidy install. One window came in a couple weeks late from the factory, so that opening finished after the others. They kept me posted and the rest was spotless."
- Mia Donnelly"Quiet, considerate install of several windows. They cleaned the glass and the sills and vacuumed every room. You'd never know a crew had been through. House is quieter and brighter."
- Brent Sakamoto