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Window Installation in Los Angeles, San Diego, & Orange County Area
We Offer Pella Windows

Window Installation in Los Angeles, San Diego, & Orange County Area

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  • Family-Owned
  • 15+ Years of Experience
  • Local, Licensed, and Insured Contractors
  • 1000+ 5 Star Reviews
  • Andersen Certified Contractor
James Hardie Elite Preferred ContractorQualified Remodeler Top 500 2025HIP 200 Home Improvement Pro 2025Anlin Windows & DoorsOwens CorningBest of Houzz 2018HomeAdvisor Top RatedAngi / Angie's ListAndersen Certified ContractorWe Offer Pella WindowsCladSiding Top 10 Siding Pro San DiegoCladSiding Top 10 Siding Pro Los AngelesBBB A+ Rating

When windows fail, your hard-earned money literally goes out the window. Old, single-paned windows drain your home’s air conditioning each summer and heat each winter, causing utility bills to soar, and cracked window seals can lead to water damage in unexpected places. That’s why it’s important to fix your home windows now.

We understand how frustrating and costly faulty windows can be. At Approved Contractor, our window contractors are licensed, insured, and highly trained. We have been serving Southern California for over 15+ years and have earned nearly 1000 5-star reviews. Our specialists have created a reliable process that has helped over 3,000 homeowners enjoy savings year-round with the installation energy-efficient windows, expertly installed to ensure that the manufacture warranty is protected and meets requirements.

Why Homeowners Trust Approved Contractor for Window Installation

Built for the Long Haul
With over 15 years of experience and thousands of completed projects, we’re not just a name online. We’re a local, established company with full-time staff and a real office. When you invest in siding, you want a contractor who’ll be around for the long run. We will be.
Trusted by 1,000+ Homeowners
With nearly 1,000 verified 5-star reviews and elite certifications from manufacturers like James Hardie, we’ve earned our reputation for exceptional results and honest service.
Certified Experts—Not Just Installers
We follow the strictest manufacturer standards to protect your home and your warranty. No cut corners. No guessing.
Clear, Pressure-Free Process
We confirm all appointments, show up on time, and never use pushy sales tactics. You’ll get a detailed quote and a 2D design preview before we ever lift a hammer. What we quote is what you pay so you have no surprise invoices.
Materials That Outperform
From start to finish, we use top-tier siding materials engineered for California’s climate, resistant to fire, pests, rot, and sun damage. We use the products as they were meant to be used, not watered down or under-installed.

Our Window Services:

  • Window installation
  • Window replacement
  • Dual-pane / double-pane window replacement
  • Triple-pane window upgrades
  • Retrofit window installation
  • New construction window installation
  • Custom window replacement solutions

What Our Window Replacement Customers Say

Types of Replacement Windows We Install On San Diego & Los Angeles Homes

Vinyl Windows

Vinyl Windows

Cost effective, highly insulating vinyl windows save you time because you never have to paint them again!

Learn More About Vinyl Windows

Fiberglass Windows

Fiberglass Windows

Durable, long-lasting fiberglass windows give you low maintenance, high performing windows you can count on for years!

Learn More About Fiberglass Windows

Wood Windows

Wood Windows

Genuine wood windows help maintain consistent style in historic homes.

Aluminum Windows

Aluminum Windows

The Strength, Beauty and maintenance-free exterior make aluminum window frames a great option for California homeowners.

Pet Door

In-Glass Pet Doors

Anlin in-glass Pet Doors come in 4 sizes to assure even your smallest furry friend has full access to the outdoors. These convenient pet doors are built right into the glass of your french or sliding patio doors.

Upgrade now pay in One Year

Approved Contractor offers financing options allowing you to replace your windows and siding before they lead to future, more serious damages. Leaking windows if left untreated lead to a whole host of problems including dry rot, black mold, foundation issues, and more. That’s why it’s important to replace your windows as fast as possible. Our financing options allow you to upgrade your home windows now and pay for them later. Contact us today to get started.

Factors that Effect the Cost of Your Window Replacement:

  • Window size and quantity
  • Window type and style
  • Frame material
  • Glass package upgrades
  • Accessibility of installation area
  • Permits and local regulations
  • Customization and design features
  • Warranty and product quality

Andersen Windows for Every Style and Budget

We specialize in the Andersen Window brand because of their drive to pioneer new products and set high industry standards. Andersen Windows has led the window replacement industry for over 115 years with updated window designs to fit every style and budget, without sacrificing the excellent performance they are known for. Choose from their budget-friendly 100 Series window selection or the E-Series windows for endless options of customized windows for your Los Angeles or San Diego home.

Andersen Windows | Southern California

Beautiful, Energy-Efficient Pella Windows

Transform your Southern California home with the unmatched elegance and efficiency of Pella Windows, expertly installed. Bid farewell to drafty, outdated windows causing energy spikes and welcome a new era of comfort. As a Pella Contractor, Approved Contractor ensures top-notch service, drawing on over a decade of experience and nearly 800 five-star reviews.

Choose from Pella’s diverse selection, including aluminum-clad wood and fiberglass windows. Pella’s commitment to efficiency means windows that meet or exceed ENERGY STAR® guidelines, offering a refreshing coolness while significantly lowering energy bills.

Pella Windows installed by Approved Contracts n the San Diego and Los Angelos areas

Don’t know where to start with your replacement window project?

Find out more about the benefits, cost, and options available for your California home in our Window Replacement Buying Guide.

Six benefits of New Home Windows

Increase your home security

Boost your home’s curb appeal

Improve energy efficiency

Decrease street noise and aircraft noise infiltration

Enjoy easy-to-clean features

Increase your home’s resale value

Our Simple Process

CONSULTATION

We understand your time is valuable. We won’t just show up on your doorstep — we confirm all of our appointments. We don’t do aggressive sales or upsell you on products or services you don’t really need.

DESIGN

Everyone wants to know what the end results will look like. Get a sneak peek with our new technology that shows you a 2D rendering of your actual house when it’s finished.

INSTALL

We take care to protect your home and treat it like it’s our own. We don’t cut corners — we protect your warranty by complying with strict manufacturer requirements.

ENJOY

Enjoy the feeling of pulling into your driveway with a new home exterior that will stand the test of time.

Encino Home Made Energy-Efficient with New Siding, Windows, & Roof

In Encino, CA, a two-story Cape Cod home was needing some significant renovations. This charming home was filled with potential, and the owner was eager to restore it to its original beauty.

 After
 Before
BeforeAfter

Questions About Replacement Windows

Window replacement costs can vary depending on the size, style, and materials you choose, as well as the condition of your home. At Approved Contractor, we provide clear, upfront pricing with no surprises. During your consultation, we walk you through all your options so you can make the best decision for your home and budget.

Common signs include drafts, rising energy bills, difficulty opening or closing windows, and condensation between panes. If you’re unsure, Approved Contractor can assess your current windows and give you honest recommendations, without any pressure to replace what you don’t need.

Most window replacement projects can be completed in just a few days, depending on the number of windows and the complexity of the installation. Approved Contractor prioritizes efficiency and communication, so you always know what to expect and when your project will be completed.

Yes, energy-efficient windows can significantly reduce heating and cooling costs while improving comfort year-round. Approved Contractor installs high-quality, energy-efficient products designed specifically for Southern California homes, helping you protect your investment long-term.

How to Know if Your San Diego or Los Angeles Area Home Needs Replacement Windows

Is it drafty in your home even when your windows are closed?

Do you have old, worn out, or damaged windows?

Have your utility bills increased unexpectedly?

Is it hard to open or close your current windows?

Can you hear street noise easily from inside your home?

Replacement Windows | Southern California
“Approved Contractor exceeded our expectations. We had them install Andersen doors and some windows. They were on time, efficient and professional. I would highly recommend them for your project. We will be using them in the future!”
—Karen N.
Windows Testimony

Ready to Upgrade Your Curb Appeal and Energy-Efficiency?

Approved Contractor delivers long-lasting window solutions that elevate your home’s beauty, efficiency, and value. With elite certifications, honest pricing, and a proven process, we’re California’s trusted window contractor for the Los Angeles, Orange County, and San Diego areas.

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