We are – 100% employee owned & over 30 years in business!
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⚲ Serving Los Altos, CA

Windows & Doors in Los Altos, Santa Clara CountyInstallation & Replacement | Bay Area

Professional window & door installation by Bay Area's most trusted team. Vinyl, fiberglass, wood & aluminum — every brand, every style, free estimate.

✔
30+ Years Experience
✔
Employee Owned
✔
Title 24 Compliant
✔
Licensed & Insure
Regular$915
Now$549
per window installed
(888) 730-4144

We are – 100% employee owned & over 30 years in business!

Get Deluxe Windows for Less.
Summer Sale.
40% OFF*

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Los Altos

Window Replacement Services in Los Altos, Santa Clara County

Deluxe Windows has been serving Los Altos homeowners with expert window and door replacement for over 30 years. From energy-efficient windows that meet California's Title 24 standards to premium systems from brands like Milgard, Andersen, and Marvin — we carry every material and style needed for Los Altos' distinguished Silicon Valley neighborhood. Los Altos' Grant Road and Rancho neighborhoods are known for 1950s–1970s ranches and split-levels that are being extensively renovated or replaced, with homeowners frequently choosing premium window packages — Andersen 400 Series or Milgard Essence — as part of larger kitchen and addition remodels. Our certified installers handle all Los Altos city permits and inspections so you don't have to.

Los Altos' inland South Bay microclimate is mild and mostly fog-free, with warm summers that create meaningful solar heat gain through east- and west-facing windows. The housing ranges from original 1950s California ranches to teardown lots being replaced with 3,000–4,000 sq. ft. contemporary homes that frequently specify large fixed picture windows and multi-panel sliders. Marvin's Signature collection is increasingly popular in Los Altos' high-end renovations for its premium wood quality. Most Los Altos projects are completed in just 1–2 days.

Los Altos Service Summary
Service Area Los Altos, CA
County Santa Clara County
Starting Price From $549/window
Current Offer 40% OFF
Yelp Rating ★★★★★ 4.9
Installation Time1–2 Days
Estimates Free
Request a Free Estimate

Windows Types We Install in

Los Altos

Every material, every style — installed to Title 24 energy standards by our certified Los Altos team.
Aluminum Windows

Aluminum Windows
Steel Windows

Steel Windows
Wood Windows

Wood Windows
Fiberglass Windows

Fiberglass Windows
Wood Clad Windows

Wood Clad Windows
Aluminum Clad Windows

Aluminum Clad Windows

Window Brands We Install in

Los Altos

We carry every major brand — match any budget, any style, any home in Los Altos.
Milgard
Andersen
Marvin
Transparent Pricing

Window Replacement Cost in Los Altos

Bay Area labor rates and materials explained. All pricing includes professional installation.

Vinyl Windows
$832 $499
per window, installed
Most affordable option
Full lifetime warranty available
Brands: Anlin, Milgard, Simonton
Energy Star certified
Low maintenance — never paint
Wood / Wood Clad
$915 $549
per window, installed
Natural warmth & character
Ideal for historic homes
Custom finishes & stain
20-year glass warranty
Brands: Andersen, Marvin, Jeld-Wen
Fiberglass / Aluminum
$915 $549
per window, installed
Highest strength & durability
Best thermal performance
Modern slim-frame aesthetics
Ideal for coastal climates
Brands: Milgard Ultra, Marvin, WWS
hOW IT woRKS
Our Installation Process

From first call to finished installation — we handle everything.

1
Free In-Home Estimate
We visit your home, measure every window, explain all options, and give you a written quote — no pressure, no obligation.
2
Product Selection
Choose your material, brand, and style. We guide you toward what works best for your home's architecture and your budget.
3
Permits & Ordering
We handle all city permits and custom orders. Most window orders arrive in 4–8 weeks.
4
Professional Installation
Our certified crew installs to Title 24 standards, completes city inspections, and leaves your home spotless.
Why Deluxe Windows
Your Trusted Los Altos Window Experts
30+ Years Serving Los Altos
We've installed thousands of windows across the Bay Area, including hundreds of homes in Los Altos and Santa Clara County. We know local building codes, permit requirements, and what works best for your neighborhood's architecture.
100% Employee Owned
Every person on your project has a personal stake in doing excellent work. No subcontractors, no turnover — the same dedicated team from estimate through installation and warranty service.
Full Permit Management
We handle all Los Altos city permits, filings, and inspections from start to finish. You don't have to navigate city hall — we've done it hundreds of times and know exactly what's required.
Flexible Financing
Spread the cost of your Los Altos window project with our flexible financing plans. Low monthly payments, competitive rates — ask about current financing offers when you request your free estimate.

Our Guarantee

Vinyl windows
‍


Full lifetime transferable warranty on parts and labor

Aluminum Wood clad, fiberglass, fiberglass clad


Offer 20 year on glass.

All Other Parts
‍


10 Years Warranty

Manufacturer's warranty on glass and frame - lifetime**

Ready to Replace Your Windows in Los Altos?

Get a free, no-obligation in-home estimate from Los Altos's most trusted window experts. We respond within 24 hours and can often schedule same-week visits.
Request a Free Estimate
Or call us directly

✆ (888) 730-4144

Do You Have Any Question?

Call us at (888) 730-4144 to ask your questions.

How much does window replacement cost in Los Altos?

Los Altos homeowners typically invest $9,000 to $22,000 for a full window replacement project. This premium Silicon Valley community — with median home prices well above $3 million — features large ranch homes and custom estates where premium window specifications are the norm. Projects covering 15–25 windows with Andersen or Milgard Ultra are common. Single window installation starts at approximately $700.

Do I need a permit to replace windows in Los Altos?

Yes. Los Altos requires a building permit for window replacements. Our team handles all permit applications with the City of Los Altos Community Development Department on your behalf.

Is it worth replacing 20-year-old windows in Los Altos?

Often yes. Twenty-year-old windows in Los Altos commonly show fogged glass, drafts and weak locks. Newer ENERGY STAR units improve comfort and curb appeal; Deluxe Windows compares payback against your utility rates and home style before recommending replacement.

Should I choose fiberglass or vinyl windows in Los Altos?

Vinyl is the value pick for most Los Altos replacements and handles Bay Area weather well. Fiberglass (including Marvin Ultrex) is stronger, more stable in temperature swings and better for larger openings or coastal exposure. We show both side by side in the showroom and on-site.

How long does window replacement take in Los Altos?

Most Los Altos projects are measured in one visit and installed in one to three working days once products arrive — typically four to eight weeks after ordering, depending on brand and custom sizes.

* Price applies to minimum window installation size of 24"x24".