Window Replacement In Downey, CA

For years now, homeowners in Downey, CA, seeking window replacement services have trusted us as their go-to team of professionals. When you choose our expert team, you avoid the frustrations of energy loss and enjoy significantly lower utility bills.
Instead of facing drafts and discomfort from poorly installed windows, our clients get perfect sealing and enhanced home comfort. With us, the benefits are clear: improved home value and undeniable curb appeal.


Alexsander Cornejo – Owner of Cornejo Builders
Hi, I’m Alexsander Cornejo, the owner and founder of Cornejo’s Builders. I started working in the remodeling and construction industry right out of high school, in 2009.
With Cornejo’s Builders, the goal is to give back to the city I grew up in. I want to send a message of hope and inspiration: any dream can be achieved, no matter where you come from, if you put in enough work and dedication.
Get Windows Replaced By Experts
Our exceptional service and the tangible benefits we provide have revolutionized the window replacement industry in Downey, CA. We’ve set new standards, delivering unmatched quality.
Check out the benefits we offer:
- Skilled Carpenters
- Clear Pricing
- Welcoming & Courteous Team
- Effective Communication
- Quick Support
- Distinctive Designs
Why Replacing Your Windows is a Solid Investment
Investing in superior window replacement services boosts your home’s efficiency, increases its value, and enhances daily comfort.
Imagine a hot summer day with your new, energy-efficient windows keeping your home cool and comfortable, reducing the need for air conditioning. This is just one example of how our services make a significant difference in your life.
Here are three key reasons why our service is a smart investment:
- Energy Savings
- Enhanced Home Security
- Aesthetic Appeal
Upgrades Homeowners Make When Replacing Their Windows
When homeowners in Downey, CA decide to replace their windows with us, they often seize the opportunity to make additional enhancements to their home. It’s a smart way to increase value and comfort in one go.
Here are the most common upgrades our clients choose:
- Energy-Efficient Doors: Many opt to match their new windows with energy-efficient doors for a cohesive look and improved insulation.
- Siding Replacement: Upgrading siding at the same time as windows ensures your home's exterior is both beautiful and durable.
- Smart Home Features: Installing smart locks and security cameras for a safer, more modern home.
- Outdoor Lighting: Enhancing the home’s exterior with strategic lighting to improve curb appeal and security.
This is How Good Your Home Will Look Like After Replacing Your Windows
Your home’s transformation could be as striking as the projects pictured below, serving as the perfect inspiration for your own renovations. Like our satisfied clients, you too can enjoy such remarkable upgrades.
Take a look at the gallery below to get a sense of the level of quality of our services:
60+ projects done
100+ of families helped
1:1 approach to your project







Window Replacement Costs In Downey, CA
Window replacement typically ranges from $450 to $1,500 per window or totals $4,500 to $22,500 for 10 to 15 windows in a house.
The overall cost varies based on factors such as window size, type, material, and quantity. Unit prices for windows alone vary from $250 to $1,400 or more.
Window Material | Total Cost Installed (Per Window) |
---|---|
Aluminum | $175 – $1,000 |
Vinyl | $200 – $1,500 |
Fiberglass | $400 – $2,000 |
Wood | $800 – $3,800 |
Composite | $400 – $2,300 |
Real Testimonials From Your Neighbors In Downey, CA
J
Cornejos Builders Inc did excellent work for my kitchen remodel project.
I really appreciate Alex efforts in fulfilling my goals, not to mention I had fun working with the team who gave me excellent quality service and ideas for my project. I am extremely satisfied; not to mention the reasonable timeline to finish the job with no hassles.
I wish Cornejos Builders Inc great success! I highly recommend Cornejos Builders Inc to anyone who is looking to get construction work done.
Y
Had a truly great experience with Alex. Cornejo’s Builders just completed converting my crawlspace/basement into an ADU (studio with new bathroom and kitchen).
What made the experience even more valuable was that the owner himself (Alex) came over for a consultation. Other companies just send their sales reps and most of the time they don’t even know anything. Feeling important is always a positive I can’t wait to work with them again.
I highly recommend them. You can tell Alex is passionate about what he does, his clients, and his company.
Simple Three-Step Process For Successful Projects
Choosing Cornejos Builders for your window replacement project means you’re opting for a hassle-free experience from start to finish.
We understand that home improvement projects can be daunting, but our straightforward three-step process ensures everything runs smoothly, allowing you to enjoy the transformation without the stress.
Here’s how we do it:
Window Replacement In Downey, CA - FAQs
Can I customize the design of my windows?
Absolutely! We offer a wide selection of window styles and designs to ensure your windows perfectly match your home’s aesthetic, creating unobstructed views and saving energy.
Whether you’re looking for energy-efficient replacement windows, double hung windows, or bay windows, we provide customized solutions for your window replacement project.
Our professional team specializes in energy-efficient window installation, including double pane windows and wood windows, to improve energy savings and insulation.
How long does the window replacement process take?
The installation of energy-efficient windows, like double pane, double hung, or casement windows, can typically be completed within a few days.
Whether it’s bay windows or single hung windows, our team provides customized solutions for your project. With a wide selection of wood windows or new construction windows, we focus on energy efficiency and creating unobstructed views.
Our professional installation service ensures minimal disruption and maximum energy savings.
Are your windows energy efficient?
Our energy-efficient windows, including double pane and casement windows, are designed for optimal energy efficiency. By replacing old windows with our customized solutions, you can enjoy the benefits of lower energy bills and enhanced insulation.
With a wide selection of styles like bay windows and double hung windows, our company ensures professional installation and unobstructed views. Say goodbye to heat loss and hello to energy savings with our best replacement windows!
Do you offer a warranty on your windows?
We stand behind the quality of our windows with a comprehensive warranty that covers both the product and installation. This gives you peace of mind knowing that your investment is protected.
How much will it cost to replace my windows?
The cost varies depending on factors such as the size, material, and type of windows you select. We provide clear pricing upfront, so there are no surprises. Schedule a consultation with us for a detailed estimate customized to your project.
Will new windows really increase my home's value?
Yes, replacing old, inefficient windows not only enhances your home’s comfort and energy efficiency but also boosts its curb appeal and overall value. This makes window replacement a smart investment for homeowners.
How do I get started with my window replacement project?
Getting started is easy. Contact us to schedule a consultation. We’ll discuss your needs, assess your home, and provide a tailored solution.
From there, we move forward with designing and installing your new windows, keeping you informed every step of the way.
Get Your Window Replaced & Save Money On Your Bills

Alexsander Cornejos
Investing in our window replacement service is a smart move you’ll wish you had made sooner. It boosts your home’s value and energy efficiency.
Making this upgrade not only enhances your home’s look but also saves on energy bills.
Don’t wait, call (562) 319-3178 today. Our professionals at Cornejos Builders are ready to ensure your home improvement is seamless and rewarding.
Downey, CA, nestled in the heart of Los Angeles County, stands out as a vibrant community rich with cultural and historical landmarks. Home to the world-renowned Apollo Space Program and the oldest operational McDonald’s, it blends innovation with tradition. The city boasts lush parks like Wilderness Park, offering residents and visitors alike a unique blend of urban and natural beauty. In Downey, every corner tells a story of progress and legacy.