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Finished custom garage with epoxy floor, built-in cabinets and a tool wall

Residential

Custom Garages

Transforming outdoor spaces into inviting, functional environments is a crucial part of enhancing a home’s curb appeal and livability. DECOMA Industries.

Why custom garages

Enhancing Outdoor Spaces with Style

Transforming outdoor spaces into inviting, functional environments is a crucial part of enhancing a home’s curb appeal and livability. DECOMA Industries brings a comprehensive approach to designing and developing exterior areas that reflect the homeowner’s vision while maximizing the potential of the property. Whether creating serene gardens, structured patios, or expansive lawns, the focus is on blending natural elements with design to establish a cohesive look. Each project is approached with careful attention to detail, considering the unique terrain, climate, and architectural style of the home to ensure that the result is both visually striking and sustainable over time.

Sustainable, Custom Exterior Design Solutions

Beyond aesthetics, functionality plays a key role in the design process. DECOMA integrates solutions that provide homeowners with outdoor spaces they can enjoy year-round, from customized irrigation systems and outdoor lighting to functional patios and entertainment areas. The combination of modern materials, innovative design, and efficient landscaping techniques results in spaces that enhance the home’s value and usability. Every project is tailored to the homeowner’s lifestyle, whether it’s a peaceful retreat, an area for family gatherings, or an eco-friendly garden.

What you get

Everything we deliver.

  • 01

    New attached & detached garage builds

    Ground-up garage construction — single, double, and three-car attached or detached. Engineered foundation, structural framing, garage door system, and finish work.

  • 02

    Garage conversion to ADU

    Convert your existing garage to a permitted ADU (Accessory Dwelling Unit). Most South Bay cities now allow this under California state law — we handle plans, permits, and the full conversion.

  • 03

    EV-ready garages

    Pre-wired for current and future EV chargers — sub-panel, conduit runs, NEMA 14-50 receptacles. Smart-charging integration with home electrical.

  • 04

    Workshop & custom storage

    Workshop layouts, custom storage cabinetry, slatwall, overhead racks. The garage that actually fits how you use it.

  • 05

    Garage door & opener systems

    Glass-paneled modern doors (Clopay Avante, C.H.I. Stratford), traditional carriage style, smart openers (LiftMaster Wi-Fi, MyQ integration). Side-mount and ceiling-mount options.

How we run it

Scope to sign-off.

  1. 01

    Site walk & design

    Walk the property, talk through whether the project is new construction, conversion, or upgrade. Survey existing utilities and access.

  2. 02

    Plans & permits

    Architectural plans, structural calcs (required for new garages), permit package filed with your AHJ. ADU conversions also need utility upgrade calcs and possibly an electrical permit.

  3. 03

    Build & finish

    Foundation, framing, electrical, mechanical, drywall, finish. Coordinated with the rest of the home if the garage attaches. Typical new garage: 8-14 weeks. ADU conversion: 12-20 weeks.

  4. 04

    Inspection & handoff

    Final inspections (building, electrical, plumbing for ADUs), Certificate of Occupancy if it's an ADU, walk-through with you. Warranties and operation manuals delivered.

Why DECOMA

One license, three disciplines, forty years.

Family-run South Bay general contractor since 1978. We design, build, and manage — under one license — so the team you start with is the team that hands you keys and the team that answers the phone when something needs fixing in year ten.

Years building
48+
Projects delivered
3,000+
Repeat clients
300+
CSLB Class
A/B

FAQ

Common questions.

Can I convert my garage to an ADU under California law?
In most cases, yes. California state law (AB 68, SB 1069, SB 13, AB 881) preempted most local barriers to ADU conversion. Garages built before 2017 are usually convertible; cities have to approve them within 60 days if they meet basic state standards. We've done dozens of garage-to-ADU conversions across the South Bay.
What's the difference between an ADU conversion and a JADU?
ADU (Accessory Dwelling Unit): up to 1,200 sq ft, full independent unit with kitchen, bath, and entrance. JADU (Junior ADU): up to 500 sq ft, within an existing single-family home, can share a bath with the main house. Garage conversions can be either — depends on whether you'll convert the whole garage.
How long does a new garage take to build?
Detached two-car garage: 10-14 weeks of construction after permit clears. Attached three-car garage: 12-16 weeks. Permit review in most South Bay cities takes 4-12 weeks before construction starts.
Can you pre-wire for EV charging in a new garage?
Yes, and we recommend it. California state code now requires EV-ready conduit and breaker space in new homes (Title 24). For garage builds, we typically install a NEMA 14-50 outlet or hardwired Wall Connector with proper sub-panel sizing — even if you don't have an EV yet.
What about garage doors with windows for ocean views?
Glass-paneled garage doors (Clopay Avante, Northwest Door Modern Steel, C.H.I. Stratford glass-section) are popular for Manhattan Beach, Hermosa Beach, and Palos Verdes homes that want light and partial view. They cost 2-3x more than steel, but the visual difference is significant.
Can the garage match my existing home's style?
Yes — that's the standard ask. We match siding, stucco, paint color, trim profile, roof material, and window style so the new garage reads as original to the house. We've matched Spanish revivals, mid-century moderns, traditional craftsmans, and contemporary coastal designs.

Service areas

Custom garages across the South Bay.

Born in Harbor City, working across LA County since 1978. Same crew, same license number, same shop at 25941 Frampton Ave, Harbor City.

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Tell us about your project.

One business day for a scope, timeline, and budget range. CSLB #375508 A/B.

Request consultation(310) 418-0258