Noise from Highway 101, San Tomas Expressway, and Caltrain is significant. Older Washington Square and Old Quad windows are prime replacement candidates. Dual-pane vinyl with Low-E is standard spec.
Now Booking Fall 2026: Schedule Your Consultation
Window Replacement Contractor in Santa Clara
500+ projects
Since 2018
Limited Lifetime
Select Product Warranties
Get A FREE Window Quote
We'll contact you in 3-5 minutes to schedule a FREE window inspection.
Your information is private and secure
For local cost factors and planning, read our Window replacement cost guide for Santa Clara.
Your next step
Start Your Window Quote Online
Send your window count and project details. We will schedule measurements and review the product and installation options with you.
Window brands and contractor credentials
Customer-Service Obsessed
Responsive from consultation through project closeout
Architect and general contractor
One accountable team
Licensed, bonded, and insured
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.
Santa Clara's housing stock spans 8% pre-1940, 20% 1940-1960, 35% 1960-1980. Architectural styles range from 1900s-30s Craftsman bungalows in the Old Quad near SCU to 1940s-50s small ranch in Washington Square. 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.
Neighborhoods We Serve
Windows Across Santa Clara Neighborhoods
Local planning starts with the site, neighborhood context, access, and applicable city review.
Washington Square
Washington Square homeowners frequently choose Hamilton Exteriors for windows. Noise from Highway 101, San Tomas Expressway, and Caltrain is significant. With Santa Clara's Relatively uniform climate — flat terrain, material selection in Washington Square requires local expertise.
Old Quad
In Old Quad, homes are predominantly 1940s-50s small ranch in Washington Square. Older Washington Square and Old Quad windows are prime replacement candidates. Our crews are familiar with Old Quad's architectural character and building requirements.
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.
R
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!
E
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.
R
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 Santa Clara
$500–$1,000 per window
Median home value in Santa Clara: $1,700,000
Prices reflect Santa Clara'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 Santa Clara?
The estimate should identify each window, its dimensions, frame, glass, and installation method. Confirm the scope for removal, flashing, trim, cleanup, and repairs. Do not assume one per-window price covers every opening or that every product has the same glass specifications.
How much does window replacement cost in Santa Clara?
Santa Clara window replacement costs $600 to $2,500 per window fully installed, depending on style and frame material (Hamilton Exteriors 2024-2026 project data). A typical home with 15 to 20 windows runs $12,000 to $25,000 for a full replacement. Every Hamilton Exteriors estimate is itemized — window units, trim, flashing, labor, and cleanup listed separately.
Do I need a permit for window replacement in Santa Clara?
Like-for-like window replacements in existing openings typically do not require a permit in Santa Clara. Structural modifications — changing window size, adding new openings, or altering rough openings — require a building permit. Permit fees range from $150 to $450 (Santa Clara Permitting Division). Hamilton Exteriors handles the entire permit process.
What is the best window style for Santa Clara's climate?
For Santa Clara's hot summers, casement windows provide the best airflow (50 to 90 percent more than sliders per AAMA) and the tightest seal when closed. Double-hung windows are the most versatile choice for ranch-style and contemporary homes. Picture windows offer the best energy efficiency for rooms where ventilation is not needed.
How long does a window replacement take in Santa Clara?
Window replacements average 1 to 2 days for a typical Santa Clara 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 or custom sizes may take 3 days. We install one window at a time and seal each opening before moving to the next.
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.
← All services in Santa Clara
Also serving Santa Clara
Roofing in Santa ClaraSiding in Santa ClaraADUs in Santa ClaraCustom Homes in Santa ClaraAdditions in Santa ClaraDecks in Santa Clara
Windows in nearby cities
21634 Redwood Rd Unit F, Castro Valley, CA 94546
Serving 88 cities across the Bay Area, Greater Sacramento, and Central Valley. Explore all service areas →