Expert Window Replacement from the #1 Window Company in LA
Premium replacement windows installed by Southern California's most trusted window company and backed by an industry-leading warranty.
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Save When You Bundle Your Window Replacement with GreenCal’s Complete Exterior Remodeling Services
At GreenCal, we hold dual licenses, to offer our clients complete exterior home remodeling services in addition to home window replacements.
What Sets GreenCal Apart From Other Roofing Companies
When you choose GreenCal, you're supporting a window company with a commitment to Southern California that extends far beyond just quality window replacement.
Rooted in the
Community
Proud Purple Heart Homes contributor providing free roofs for veterans.
Family Owned &
Locally Operated
Our certified window installers have been serving LA for 25+ years.
Here When
You Need Us
Local window installers who are always here when you need us.
When wildfires impact Southern California, out-of-town contractors flood the area promising quick fixes before disappearing. GreenCal Construction is here to stay.
Here-To-Stay
Family-owned window company serving SoCal for years.
Dual B & C-39 licensing for complete exterior projects.
Master-Elite & Platinum Preferred certifications.
Leading window warranties with local backing.
Purple Heart Homes contributor with community ties.
Fire-resistant materials specialists.
Complete exterior remodeling capabilities.
Appear only after fires, then leave town.
Limited licenses with limited capabilities.
Basic training with minimal manufacturer support.
Short-term warranties from companies that disappear.
No local community involvement or accountability.
Focus only on quick repairs, not fire protection.
Limited services without full exterior remodeling.
The GreenCal Window Replacement Company 100% Satisfaction Guarantee
GreenCal Construction delivers premium window replacement solutions with unmatched expertise as your complete exterior remodeling partner.
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Leading Warranty
Available on Anlin replacement windows with manufacturer backing and energy efficiency guarantees.
Efficient by Design
High-performance thermal insulation and advanced UV protection for consistent, year-round comfort in every season.
Dual B & C-39 Licensing
We're one of the few window companies with dual licenses for complete exterior projects.
Anlin Windows Authorized Dealer
Factory-trained window installers and certified window replacement specialists.
100% Satisfaction Guaranteed
We stand behind every window replacement project with a complete satisfaction promise.
Complete Window Replacement Solutions for Southern California Homes
Expert window replacement and installation services designed to maximize energy efficiency and comfort while reducing utility costs with premium Anlin windows.
Premium Window Upgrades
- Energy-efficient Anlin windows
- Complete home window replacement
- Window & door replacement coordination
- Custom sized window solutions
- New construction window installation
Energy-Efficient Window Solutions
- High-performance thermal insulation
- UV-protective window technologies
- Double & triple-pane windows
- Energy Star certified options
- Heat-reflective window coatings
Specialty Window Services
- Commercial window replacement
- Historic home window restoration
- Custom whole home window sizing & design
- Coordinated window installation & exterior remodeling services
- Emergency window repair services
Your Stress-Free Window
Replacement Is Easy As…
Free Consultation
Comprehensive window assessment with energy analysis and replacement window options.
Custom Proposal
Detailed project plan with timeline, window specifications, and warranty information.
Expert Installation
Professional window replacement by certified window contractors with daily cleanup.
Expert Window Company Serving 50+ Cities Throughout Los Angeles & Orange County
Looking for window replacement companies near me? GreenCal's expert window contractors provide replacement windows and window installation services throughout greater Los Angeles.
Protect Your Home with Southern California's Premier Window Replacement Partner
Get your free window replacement consultation with expert recommendations and premium window warranty options — plus learn about our bundle and save options on complete exterior remodeling projects.
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