Climate Zone 4 requires U-factor 0.30, SHGC 0.23. Noise from 101/280/680 corridors drives acoustic glazing demand. Older Willow Glen homes have original single-pane wood windows. Dual-pane vinyl is dominant replacement.
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Window Replacement Contractor in San Jose
500+ projects
Since 2018
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For local cost factors and planning, read our Window replacement cost guide for San Jose.
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Send your window count and project details. We will schedule measurements and review the product and installation options with you.
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Customer-Service Obsessed
Responsive from consultation through project closeout
Architect and general contractor
One accountable team
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Verified business credentials
Window Styles 
Choose the Window Style That Fits the Opening
Single-Hung Windows
A fixed upper sash and operable lower sash for familiar operation, ventilation, and a straightforward replacement path.
Single-Slider Windows
Horizontal operation where exterior swing clearance is limited, with the opening and drainage details measured before ordering.
Sliding Glass Doors
Large glazed openings coordinated with sill support, flashing, drainage, operation, safety glass, trim, and adjacent finishes.
Picture Windows
Fixed glass for daylight and views, planned around glass size, exposure, energy ratings, structural support, and interior trim.
Double-Hung Windows
Two operable sashes for flexible ventilation, with frame proportions and trim selected for the home and opening.
Casement Windows
Hinged windows with compression seals, planned around swing clearance, hardware access, ventilation, and egress needs.
San Jose's housing stock spans 10% pre-1940, 20% 1940-1960, 35% 1960-1980. Architectural styles range from Queen Anne Victorians and Craftsman bungalows in Naglee Park and Willow Glen to 1960s-80s tract ranches in Cambrian and Blossom Valley. Each era and style presents different windows requirements — from material compatibility to structural considerations. Our crews know what to expect before they arrive on site.
San Jose's Climate Zone 4 designation under Title 24 means replacement windows must meet specific U-factor and Solar Heat Gain Coefficient requirements calibrated for our hot summers and mild winters. Hamilton Exteriors (CSLB #1078806) installs windows that exceed these minimums, ensuring compliance and optimal energy performance in San Jose's inland climate.
San Jose's housing market continues to reward energy-efficient upgrades. According to recent Bay Area real estate data, homes with updated windows sell 5-7 days faster than comparable properties with original single-pane units. In neighborhoods like Willow Glen and Rose Garden, period-appropriate window upgrades also preserve the architectural character that drives premium pricing.
The Federal Inflation Reduction Act and California state programs currently offer significant incentives for energy-efficient window upgrades in San Jose. Homeowners can claim up to $600 in federal tax credits, plus PG&E and BayREN rebates. Hamilton Exteriors helps identify all applicable programs and provides the documentation needed to claim your savings.
Neighborhoods We Serve
Windows Across San Jose Neighborhoods
Local planning starts with the site, neighborhood context, access, and applicable city review.
Willow Glen
Willow Glen homeowners frequently choose Hamilton Exteriors for windows. Climate Zone 4 requires U-factor 0.30, SHGC 0.23. With San Jose's Downtown/north warmer than south (Almaden gets foothill breeze), material selection in Willow Glen requires local expertise.
SoFA District
In SoFA District, homes are predominantly 1960s-80s tract ranches in Cambrian and Blossom Valley. Noise from 101/280/680 corridors drives acoustic glazing demand. Our crews are familiar with SoFA District's architectural character and building requirements.
Rose Garden
Rose Garden's architecturally diverse homes require custom window solutions. From arched windows on Spanish Revival homes to multi-light casements on Colonials, we source specialty profiles that complement each home's unique character while meeting Title 24 energy standards.
Almaden Valley
Almaden Valley homes face intense summer heat that taxes cooling systems. We install solar-reflective glass packages with high SHGC protection that reduce cooling loads by up to 30%. Large picture windows common in these 1970s-1990s homes benefit most from this upgrade.
Cambrian
Cambrian's mid-century ranch homes feature large window walls that are prime candidates for energy upgrades. We replace oversized single-pane units with modern dual-pane systems that maintain the open, light-filled feel while cutting energy costs significantly.
Downtown
Downtown San Jose's mix of historic Victorians and modern condos requires diverse window solutions. We handle everything from custom wood-frame replacements on heritage buildings to high-performance aluminum systems on contemporary projects within walking distance of transit.
Project Management How Hamilton Exteriors
How Hamilton Exteriors
Manages Your Window Replacement
Opening Measurements
We measure each opening and review frame conditions, drainage, egress, safety glass, and trim before ordering.
Window and Glass Selection
Your proposal identifies the manufacturer, operating style, frame, glass package, energy rating, finish, hardware, and installation method.
Flashing and Installation
We coordinate removal, opening repairs, sill and perimeter flashing, insulation, window setting, trim, sealants, and permits.
Operation and Closeout
We test operation and locks, check sealants and finishes, complete cleanup, and review applicable product and workmanship warranties.
Google rating 4.6 ★ from 47 public reviews
Window Project Reviews
Verified public reviews from homeowners who hired Hamilton Exteriors.
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Renee D.
via HomeAdvisor
I scheduled to have someone come give me an estimate for all new windows in our 1950s home with not so great Remodeling work by previous owners. Alex Li promptly met with us & his crew throughout the entire process. They were always on time to work, left our home clean of debris & spectacular new JeldWin windows. Helped me with getting Financing as well...Just all around a great experience & highly recommend!
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Ethan W.
via HomeAdvisor
I recently hired Hamilton Exteriors to replace my siding and windows, and they did a fantastic job. Their team was punctual, polite, and paid close attention to detail. The siding looks seamless, and the new windows have made a noticeable difference in both appearance and energy efficiency. Communication was always clear, and they finished on time and within budget. I’m very happy with their work and would definitely recommend them.
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Robert H.
via Angi
From the very first consultation, we knew we'd made the right choice. The team was knowledgeable and genuinely listened to our concerns about energy efficiency and design. We've already noticed a drop in our energy bills.
H
H.T.
via Google
I had a great experience working with Hamilton exteriors. From start to finish, their team was professional, responsive, and detail-oriented. They made the entire process smooth and stress-free, keeping me updated every step of the way. The quality of their work really stands out. Everything was done efficiently and exceeded my expectations. If you’re looking for a reliable company that takes pride in what they do, I highly recommend them!
Google rating: 4.6/5 from 47 public reviews
Read reviews on Google Premium Market
Windows Costs in San Jose
$500–$1,000 per window
Median home value in San Jose: $1,350,000
Prices reflect San Jose's premium market and Santa Clara County labor rates. Actual costs depend on home size, materials, and project complexity. We provide free, itemized estimates with no hidden fees.
Get Your EstimateCompare Broad Window Operation Types
Swipe to compare all options.
| Feature | Single Hung | Double Hung | Casement | Slider | Picture |
|---|---|---|---|---|---|
| Operation | Lower sash moves | Both sashes move | Hinged sash opens | One sash slides | Fixed glass |
| Ventilation path | Lower opening | Upper and lower openings | Full sash opening | Half of frame opening | None |
| Clearance review | Interior access | Interior access | Exterior swing area | Track and meeting rail | Glass and trim access |
| Main detail focus | Sash balance and seal | Two sash seals | Hardware and compression seal | Track and drainage | Glass, frame, and flashing |
| Dedicated guide | Single hung | Double hung | Casement | Single slider | Picture window |
Window Financing
Plan Your Window Replacement With Approved Credit
Financing may be available for eligible multi-window and whole-home replacement projects with approved credit. During your window consultation, we review the product and installation scope, then explain current lender programs, terms, and payment timing.
Ask which current options fit your window replacement project.
Call Now (650) 977-3351 Frequently Asked Questions
Didn't find the answer to your question? Call Now (650) 977-3351
What areas do you serve?
We serve Northern California across three regions: the San Francisco Bay Area, Greater Sacramento, and the Central Valley. Our published guides cover 14 counties and 88 cities. Our Castro Valley and Sacramento offices support local estimating, permit coordination, and project planning across these regions.
How does billing and financing work?
Financing may be available for eligible projects with approved credit. Available terms depend on lender approval, project scope, and current programs. Your project manager can review the options that apply before work begins. We also accept checks, ACH, and major credit cards.
Are you licensed and insured?
Yes. Hamilton Exteriors holds CSLB License #1078806, active general liability coverage, and the required contractor bond. We also hold GAF Master Elite and James Hardie Elite Preferred credentials. We can provide current proof of coverage before work begins.
Do I need a permit for my exterior project?
Permit requirements depend on the project scope and local jurisdiction. Hamilton Exteriors coordinates required applications, plan documents, corrections, and inspections. Permit fees and allowances appear in the proposal before construction begins.
How much does window replacement cost in San Jose?
Window replacement in San Jose costs $650 to $1,500 per window installed, depending on style and frame material. A typical home with 15 windows ranges from $9,750 to $22,500. All Hamilton Exteriors estimates are itemized — window units, trim, flashing, labor, and cleanup listed separately. See our full cost guide for detailed pricing.
Do I need a permit for window replacement in San Jose?
Yes. San Jose requires a building permit for most window replacements. Permit fees run $200 to $600. We handle the entire permit process — application, plan submission, and inspection scheduling. Visit the San Jose Building Department for more information.
How long does window replacement take in San Jose?
A typical window replacement takes 1 to 2 days for a home with 10 to 15 windows. Each window takes approximately 45 to 90 minutes to remove, prep, install, insulate, flash, and trim. Larger projects with 20 or more windows may take 3 days. We install one window at a time and seal each opening before moving to the next.
What window styles work best for San Jose homes?
Casement windows provide the best airflow and tightest seal — ideal for homes that rely on natural cooling. Double-hung windows suit Craftsman and Victorian homes in Naglee Park and the Rose Garden. Sliding windows work well in Eichler-style homes in Cambrian and Willow Glen. Picture windows are a strong choice for hillside homes with views.
Do replacement windows qualify for energy rebates in San Jose?
Yes. ENERGY STAR certified windows may qualify for federal tax credits of up to $600 under the Inflation Reduction Act (through 2032). California also offers rebates through utility programs — PG&E and Santa Clara Municipal Utilities periodically offer incentives for energy-efficient window upgrades. We provide all documentation needed for rebate and tax credit applications.
Your Next Step
Plan Your Project With a Clear Scope
Financing may be available with approved credit for eligible projects.
Tell us about your project. We usually call within 3–5 minutes to schedule the next step.
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