Mid-century ranch homes have large picture windows and sliding doors that are energy-inefficient. Fiberglass and wood-clad frames dominate this luxury market. Highway 24 noise drives STC 30+ demand.
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Window Replacement Contractor in Orinda
500+ projects
Since 2018
Limited Lifetime
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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
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.
Orinda's housing stock spans 5% pre-1940, 20% 1940-1959, 45% 1960-1979. Architectural styles range from 1950s-60s California ranch in Sleepy Hollow and Glorietta to 1920s-40s cottages in Orinda Village. 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.
Orinda's hillside terrain and proximity to wildland areas place it firmly in a high fire-severity zone, with hot, dry summers and seasonal Diablo winds increasing fire risk. Energy-efficient windows with Low-E coatings and proper SHGC ratings are essential for maintaining comfortable indoor temperatures and managing cooling costs in Orinda.
Orinda features large-lot homes with Craftsman, ranch, and contemporary styles set among mature oaks and rolling hills, with median home prices exceeding $2.2 million. Many of these homes retain original single-pane aluminum windows that are inefficient and drafty. Modern dual-pane replacements typically reduce energy costs by 15-25%.
The City of Orinda Building Department enforces strict fire-safe construction standards including Class A roofing, ember-resistant vents, and defensible space requirements. Hamilton Exteriors (CSLB #1078806) ensures all Orinda window installations meet California Title 24 energy standards and processes permits through the local building department.
Neighborhoods We Serve
Windows Across Orinda Neighborhoods
Local planning starts with the site, neighborhood context, access, and applicable city review.
Sleepy Hollow
Sleepy Hollow homeowners frequently choose Hamilton Exteriors for windows. Mid-century ranch homes have large picture windows and sliding doors that are energy-inefficient. With Orinda's Summer average 87°F — slightly cooler than deeper-inland CCC from Caldecott corridor marine influence, material selection in Sleepy Hollow requires local expertise.
Glorietta
In Glorietta, homes are predominantly 1920s-40s cottages in Orinda Village. Fiberglass and wood-clad frames dominate this luxury market. Our crews are familiar with Glorietta's architectural character and building requirements.
Orinda Downs
Orinda Downs homeowners upgrading windows frequently choose Low-E coatings that block UV rays, protecting furnishings from sun damage while keeping Orinda's summer heat at bay.
Orinda Country Club
Bay and picture windows are popular choices in Orinda Country Club where homes have views of the surrounding hills. We help select styles that maximize both light and energy efficiency.
Claremont Hills
Older Claremont Hills homes with wood-frame windows often suffer from paint buildup and seal failure. Our replacement process ensures smooth operation and proper weatherproofing.
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.
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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 Orinda
$800–$1,500+ per window
Median home value in Orinda: $2,000,000
Prices reflect Orinda's premium market and Contra Costa 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 do replacement windows cost in Orinda?
Replacement windows in Orinda typically cost $500-$1,200 per window installed, depending on size, style, and energy rating. Whole-home projects of 10-15 windows range from $8,000 to $20,000.
How much can new windows save on energy bills in Orinda?
Orinda homeowners typically see 15-25% reduction in heating and cooling costs with dual-pane Low-E windows. This is especially impactful given the area's hot summers.
What window styles work for Orinda homes?
We offer casement, double-hung, sliding, bay, and picture windows to match Orinda's diverse architecture. Our design team helps select styles that complement your home's character.
What are Orinda's Title 24 window requirements?
California Title 24 energy standards require specific U-factor and SHGC ratings for replacement windows in Orinda. All windows we install meet or exceed current Title 24 requirements.
How long does window replacement take in Orinda?
Most window replacement projects in Orinda take 1-3 days for installation, with 4-6 weeks lead time for custom orders. We install with minimal disruption to your daily routine.
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.
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 →