Calistoga is the hottest town in Napa Valley, with summer temperatures regularly reaching 105 degrees or more. High-performance windows with low Solar Heat Gain Coefficient ratings are essential for comfort and energy efficiency. Hamilton Exteriors installs dual-pane Low-E windows that block up to 70 percent of solar heat while preserving natural light and mountain views.
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Window Replacement Contractor in Calistoga
500+ projects
Since 2018
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For local cost factors and planning, read our Window replacement cost guide for Calistoga.
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Responsive from consultation through project closeout
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One accountable team
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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.
Many Calistoga homes still have single-pane windows that struggle to manage the town's temperature extremes: scorching summer days followed by chilly nights where temperatures can drop 40 degrees. Upgrading to modern insulated windows typically saves Calistoga homeowners 20 to 30 percent on heating and cooling costs while dramatically improving indoor comfort.
Calistoga's resort-town character means windows contribute significantly to curb appeal. Whether your home is a historic cottage near Lincoln Avenue or a modern property on Foothill Boulevard, we select window styles that enhance your home's architecture. Hamilton Exteriors handles Title 24 compliance, permitting, and installation for every Calistoga window project.
Neighborhoods We Serve
Windows Across Calistoga Neighborhoods
Local planning starts with the site, neighborhood context, access, and applicable city review.
Downtown Calistoga
Downtown Calistoga homes need windows that manage extreme summer heat while preserving the town's character. Hamilton Exteriors installs high-performance windows with low SHGC ratings that keep interiors comfortable even when Downtown Calistoga hits 105 degrees.
Lincoln Avenue Corridor
Lincoln Avenue Corridor properties benefit from windows that balance street-facing aesthetics with thermal performance. Hamilton Exteriors selects window styles appropriate to each home's architecture, all with dual-pane Low-E glass rated for Calistoga's intense heat.
Foothill Boulevard
Foothill Boulevard homes in fire zones may require tempered dual-pane windows. Hamilton Exteriors verifies each property's fire zone requirements and installs windows that meet all applicable standards while providing excellent energy efficiency for Calistoga's hot climate.
Petrified Forest Road
Petrified Forest Road's fire zone designation may require specific window fire resistance ratings. Hamilton Exteriors installs tempered, dual-pane windows that satisfy fire code requirements while blocking solar heat gain in this hot, exposed location.
Tubbs Lane
Tubbs Lane homeowners benefit from fire-rated windows that also manage Calistoga's extreme summer temperatures. Hamilton Exteriors installs dual-pane tempered windows with Low-E coatings that address both fire safety and energy performance in a single solution.
Bennett Lane
Bennett Lane properties enjoy vineyard views that quality windows should frame beautifully. Hamilton Exteriors installs large picture windows and sliding doors that showcase Bennett Lane's wine country setting while meeting energy codes and fire 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.
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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 Calistoga
$500–$1,000 per window
Median home value in Calistoga: $1,200,000
Prices reflect Calistoga's premium market and Napa 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 Calistoga?
Request an installed estimate for the exact window sizes, styles, and frames. The proposal should distinguish the product from removal, flashing, trim, access, and repairs. Material-only figures or generic whole-home totals do not establish the cost of your installation.
How long does a window replacement take in Calistoga?
A typical Calistoga home with 10 to 15 windows takes 1 to 2 days. Each window takes approximately 45 to 90 minutes to install. Larger projects with 20 or more windows may take 3 days. If structural modifications are needed — widening an opening or adding a header — add 1 day per modified opening.
Do I need a permit for window replacement in Calistoga?
Yes. The City of Calistoga requires a building permit for window replacements that change the size or type of window, or that involve structural modifications. Hamilton Exteriors handles the permit application and all required inspections. Permit fees range from $200 to $600 (Hamilton Exteriors 2024-2026 project data).
What window styles work best for Calistoga homes?
Double-hung windows suit Victorian and Craftsman homes common in Calistoga's historic district. Casement windows provide the best airflow and tightest seal — ideal for homes that rely on natural cooling. Sliding windows work well in mid-century ranch homes. Picture windows maximize vineyard views in rooms where ventilation is not needed.
How much do energy-efficient windows save on Calistoga energy bills?
ENERGY STAR certified windows save homeowners $125 to $465 per year on energy bills according to the U.S. Department of Energy. In Calistoga's hot summer climate, Low-E glass with a low Solar Heat Gain Coefficient (SHGC) reduces cooling costs significantly. Most homeowners recoup their investment within 8 to 12 years.
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
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