Los Angeles Builders for Expanding Space.

Aggregate Construction is a family-owned general contractor specializing in home additions and room expansions. We deliver kitchen remodels and ADU builds across Los Angeles.

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Aggregate Construction – Construction company in Los Angeles
300+
Projects Completed
5
Avg Google Rating
15+
Years Serving Los Angeles
Licensed
& Insured
What We Do

Full-service additions, start to finish.

Modern two-story home addition under construction in Los Angeles
Home Additions
We pour new stem-wall foundations, frame with California-grade seismic hardware and tie into existing rooflines without leaks. Electrical, plumbing and HVAC are routed seamlessly so your new square footage feels original.
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Crew installing roof trusses on new master bedroom addition
Room Additions
Need a fourth bedroom or bigger living area? We match stucco texture, roof tile and interior finish for a flawless blend. Every nail and joint is inspected before drywall goes up.
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Detached ADU with clerestory windows and modern siding
ADU Construction
From 400-sq-ft garage conversions to detached 1,200-sq-ft backyard units, we handle LADBS plans, Title 24 energy calcs and impact fees. Tenants move in faster because we pull permits in-house.
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Contemporary kitchen remodel with waterfall island
Kitchen Remodeling
We open load-bearing walls, install flush beams and rewire for pendant lighting and built-in appliances. Soft-close plywood cabinets and quartz counters are templated on-site for precision fit.
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Permit set rolled out on drafting table
Permit Handling
Our licensed staff submits drawings, schedules inspections and walks city counters so you skip the red tape. All paperwork stays under one roof.
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Designer reviewing floor plans with homeowner
Design Consultation
Start with a free on-site visit, 3D sketches and exact material allowances. You see the space before a single stud is cut.
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How We Work

Simple process, no surprises.

01
Free Consultation
We come to you, learn your goals, and answer every question. No pressure, no sales pitch.
02
Detailed Quote
A written scope of work with line-item pricing. You know exactly what you are paying for before we start.
03
We Build It
Our own crew on site, daily updates, and a clean worksite every evening. No subcontractor surprises.
04
Final Walkthrough
We walk every room with you before calling it done. You sign off, we consider it a success.
Reviews

What Los Angeles homeowners say.

"They turned our 1950s galley into an open chef’s kitchen in six weeks. The quartz slab fit like a glove and the permit closed without a single correction."

Rachel M.
Kitchen Remodel

"Our 650-sq-ft garage became a rental ADU that pays our mortgage. Aggregate handled everything from sewer tap to final inspection."

Carlos H.
ADU Construction

"They added a master suite over our carport and matched the original stucco so well our neighbors asked when we remodeled the whole house."

Jennifer T.
Room Addition
Get in Touch

Plan your space today.

Call for a free estimate and get plans within 48 hours.

(310) 499-5806
Los Angeles, CA — serving the surrounding area
Mon-Sat, 8am-6pm