Experienced Home Improvements in Bellflower, CA

Trust Cornejos Builders for Home Improvements in Bellflower, CA
Most contractors will tell you they can handle your home improvement project. Then they disappear for days, leave your house a mess, and suddenly the quote you got has magically doubled. We’ve heard these stories more times than we can count from homeowners around Bellflower.
That’s exactly why we built Cornejos Builders the way we did. We send you daily updates, which may seem simple, but most contractors can’t manage. We give you a five-year warranty on our workmanship because we plan to still be here in the next decade and the one after that.
And when we quote you a price, that’s what you pay. No surprise fees or other nonsense halfway through.
Home improvements can mean many things. New roofing that actually keeps the rain out. Interior remodeling that opens up your space. Exterior painting that makes your house look like you care about it again. New windows, new doors, a deck where you can finally have people over. We handle it all and do it right the first time.


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.
- 5-year workmanship warranty included
- Daily project progress updates
- Transparent pricing, zero surprises
- Seasoned, respectful crew members
- Full interior and exterior services
- Local Bellflower knowledge matters
A Look at Our Home Improvements in Bellflower, CA
60+ projects done
100+ of families helped
1:1 approach to your project







Unsure about choosing us? Request a quote to get to know us better! Let’s discuss your project. Or, call us at (562) 319-3178 now!
What Your Neighbors in Bellflower, CA, Say About Us
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Ronda Welker
We couldn’t have asked for a better contractor to work with than Alex. We were needing our home remodeled in a very short window of time and Alex and his crew were always on schedule and in touch with us throughout the whole remodel. We would definitely use them again.

Andrei Hienadz
I had a fantastic experience with Cornejos Builders! They exceeded my expectations in every way. From the initial consultation to the final walkthrough, their professionalism and craftsmanship shone through.
What Home Improvements Actually Cost in Bellflower, CA
Here’s the honest truth: home improvement costs depend entirely on what you’re trying to do. A simple deck repair might run you around $5,000. A complete interior remodel where we gut the place and start over? That can climb past $200,000. Most of our projects fall between $20,000 and $80,000, and they typically take 1 to 4 months to complete.
These numbers come from actual projects we’ve completed around Bellflower. Your project will have its own price based on what needs to be done. Send us the details, and we’ll give you a real number you can work with.
What affects the final cost?
- Scope of Work: Obviously, replacing a few windows costs less than remodeling your entire kitchen. The more work you need done, the higher the investment. If you're combining multiple projects, like new siding plus window replacements, expect the price to reflect that added complexity.
- Materials You Choose: Granite countertops cost more than laminate. Luxury vinyl flooring runs cheaper than hardwood. The materials you pick make a huge difference in the final bill. We can work within your budget and still get you durable, quality materials that make sense for your home.
- Size of the Space: A small bathroom remodel costs less than a primary suite overhaul. Painting two rooms differs from painting your entire house. So, square footage matters. The bigger the space, the more labor, materials, and time needed.
- Structural Changes: Knocking down walls to create an open floor plan? Rerouting plumbing or electrical systems? These structural changes add cost because they require permits, inspections, and specialized work.
- Current Condition: If we open up your walls and find old wiring that needs replacing, or discover water damage that has to be fixed first, that affects the timeline and budget. We do our best to anticipate issues during the estimate, but sometimes you don't know what you're dealing with until you start.
Keeping Your Project on Budget and on Schedule
How Our Home Improvements Work
Common Questions About Home Improvements in Bellflower, CA
How long does a typical home improvement project take?
Most of our projects run one to four months, depending on what you’re doing. A bathroom remodel might take three weeks. A full kitchen plus flooring throughout the house? Closer to three months. Weather can sometimes delay exterior work, and occasionally we find issues once we open up walls, but those delays are rare, and we communicate them immediately when they happen.
Do I need permits for home improvement work in Bellflower?
Depends on the work. Painting your house? No permit needed. Knocking down a wall, adding a bathroom, replacing your roof? Yes, you need permits. The good news is we handle all of that for you. We pull the permits, schedule the inspections, and deal with the city. That’s part of what you’re paying us to do.
Can you work around my schedule if I work from home?
What if I want to make changes midway through the project?
Ready to Improve Your Home?

Alexsander Cornejos
You’ve probably been thinking about this project for a while now. Maybe you walk past that outdated bathroom every day and imagine what it could look like. Perhaps you’re tired of your neighbors having nicer exteriors than you do. Or you simply want to enjoy your home more.
Visit our contact page here or give us a call at (562) 319-3178 and let’s talk about what you need. We’ll come out, take a look, give you an honest assessment, and a fair price. If you want to read more about our home improvement services, browse through everything we offer and see what makes sense for your home.
The longer you wait, the longer you’re living with a house that doesn’t quite work the way you want it to. Let’s fix that.
Bellflower sits in the heart of Los Angeles County, home to around 77,000 residents who enjoy its tree-lined streets and small-town feel, despite being just minutes from downtown LA. You’ll find families gathering at Simms Park on weekends, and the Bellflower Unified School District serves the community’s educational needs. Many homeowners here take pride in maintaining their properties, making home improvements in Bellflower, CA, a common sight as people invest in the neighborhoods they love.