Home Builder in South Gate, CA

In South Gate, you’ll find families who’ve lived on the same street for decades and others settling in for the first time. Wherever you are in that story, your home matters. It’s where your days begin, where your people gather, and where life feels steady.
That’s what drives us at Cornejos Builders. We bring focus, care, and experience to every part of the process, from the first sketches to the final inspection. You’ll always know what’s happening, who’s on site, and when the next milestone arrives.


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.
What Makes Cornejos Builders a Top Home Builder in South Gate, CA
- 1-Year Workmanship Warranty
- Fast Completion Timelines
- Constant Project Updates
- Premium Materials And Finishes
- Full-Scope New Home Services
- Friendly, Local Expert Crew
See Our Work in South Gate, CA
Take a look at the homes we’ve built throughout South Gate. You’ll see the craftsmanship in every corner, from open layouts designed for family gatherings to kitchens where light pours across quartz countertops and subway tile backsplashes.
We focus on function and detail, creating homes that feel just right from the first step inside. Whether it’s maximizing counter space in a small kitchen or integrating a cozy dining nook, every choice serves a purpose.
60+ projects done
100+ of families helped
1:1 approach to your project







What People in South Gate, CA Say About Us
Homeowners throughout South Gate have trusted us with one of the biggest projects of their lives.
Their stories say more than we ever could. Read what your neighbors think about working with Cornejos Builders, from the first consultation to the moment the keys change hands.
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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.
How Much Does Home Building Cost in South Gate, CA?
Here’s what you should know: building a new custom home in South Gate generally starts around $175,000 when utilities are connected and can reach $450,000 or more depending on the design, materials, and lot conditions.
Those numbers come from past projects. Your cost will depend on your vision. After an on-site visit, we’ll know exactly what goes into your project, and you’ll get a clear, final estimate with no hidden fees.
| Project | Features Included | Total Cost |
|---|---|---|
| 800 sq. ft. New Home in Montebello | Level 5 drywall finish, curbless walk-in shower, new kitchen cabinets and countertops, new 2-ton mini split system, new vinyl flooring | $155,000 |
| 750 sq. ft. New Construction Unit in Los Angeles, C | New foundation, new windows, new drywall, new balcony, new sand finish stucco, new electrical and plumbing installation | $175,000 |
| 682 sq. ft. Master Suite Addition in Long Beach, CA | Heated flooring, level 5 smooth finish walls, Bose sound system throughout the suite, master bathroom, smooth stucco finish, new foundation | $205,000 |
Five Key Price Factors:
- Lot Conditions and Foundation Requirements: Soil type, slope, and size all influence your foundation design. A standard slab may be simple, but uneven terrain or complex grading can raise costs.
- Kitchen Design Complexity: A basic galley layout with standard cabinets differs greatly from a full kitchen build with marble backsplash, custom island, and high-end appliances.
- Material Selections: From flooring and fixtures to granite or quartz countertops, your finish choices can swing your budget significantly.
- Home Size and Layout: Larger homes with intricate layouts, multiple levels, or vaulted ceilings will naturally require more labor and materials.
- Electrical and Plumbing Complexity: Designs with more bathrooms, advanced lighting, or additional fixtures require extra planning and skilled installation.
These examples are based on previous builds, so your project’s cost may vary. We’re happy to meet, walk the site, and prepare an accurate quote.
Budget-Friendly & On-Time Completion
Budget
Think about it this way: if you spend $300,000 on a home you’ll enjoy for 20 years, that’s roughly $41 a day to live in a space designed entirely for your family. You’re investing in comfort, function, and longevity, not just square footage.
Timeline
We plan carefully, communicate clearly, and respect your time. Every trade and task is scheduled with precision, and we clean up before we leave each day. We’ve built our name on finishing close to plan because preparation is where good timelines begin.
Our Home Builder Process
FAQs About Home Builders in South Gate, CA
How long does it take to build a home in South Gate?
Most custom homes take 6 to 12 months to complete, depending on size, design, and permit timing. We give you a timeline at the start and follow it closely, adjusting only if weather or supply issues arise.
How do I know if my lot is ready for construction?
We’ll perform a full site evaluation, reviewing zoning, utilities, soil conditions, and grading. South Gate has specific permitting requirements, and we handle all the details to make sure your lot is fully build-ready before breaking ground.
What’s included in your warranty?
Our one-year workmanship warranty covers structure, electrical, plumbing, and craftsmanship issues. We take accountability seriously and respond quickly if something needs correction.
Can you design a home within my budget?
Yes. During your consultation, we’ll talk about your financial comfort zone, offer material alternatives, and adjust design features to make the best use of your investment.
Bring Your Vision to the Table, We’ll Do the Rest

Alexsander Cornejos
You don’t need a complete plan before reaching out. We’ll walk you through every phase: ideas, design, budget, and construction, with straightforward guidance and transparent communication.
Call us at (562) 319-3178 or send us a message here.
Let’s plan your next chapter with a home builder who listens, builds with care, and delivers results that last.
Located in southeast Los Angeles County, South Gate, CA, is a city rooted in community and progress. Families here enjoy close-knit neighborhoods, tree-lined streets, and easy access to urban conveniences. From South Gate Park to the Azalea Regional Shopping Center, this city blends history with modern living. Working with a local home builder in South Gate, CA, means partnering with professionals who understand how to build homes that truly belong here.