ADU Construction in Whittier
Licensed, insured contractors providing expert adu construction to homeowners across Whittier and the eastern Gateway Cities area.
California's ADU-friendly regulations make it easier than ever for Whittier property owners to add living space. Eco Grizzly builds detached ADUs, garage conversions, and junior ADUs throughout Uptown Whittier, East Whittier, Whittier Hills, La Habra Heights, Hacienda Heights, Pico Rivera, Santa Fe Springs. We manage architectural plans, city permits, utility connections, and full construction from foundation to finish. Whittier features a mix of historic homes near Uptown and newer development in the eastern hills. The 1987 Whittier Narrows earthquake caused significant chimney damage throughout the city, and many repairs from that era are now aging.
Project Photos
View full gallery →Local Expertise in Whittier
We are a local, licensed, and insured contractor with deep knowledge of Whittier and the eastern Gateway Cities area. Our technicians understand the unique needs of Craftsman bungalows, ranch homes, and hillside properties in the Whittier Hills and the specific building code requirements for each municipality. Every job starts with a thorough assessment, includes a written estimate with photos, and ends with a clean jobsite. We arrive on time, communicate clearly, and stand behind our work with a written guarantee.
Remodeling Craftsman bungalows, ranch homes, and hillside properties in the Whittier Hills
Whittier is known for its Craftsman bungalows, ranch homes, and hillside properties in the Whittier Hills. Our remodeling team understands the architectural details, structural quirks, and design sensibilities specific to homes in Whittier and the eastern Gateway Cities area. We preserve what makes your home special while upgrading functionality, energy efficiency, and comfort.
Permits, Codes, and Inspections
Every remodeling project that involves structural, plumbing, or electrical work requires a city permit. Eco Grizzly handles all permit applications, plan submissions, and inspection scheduling for projects in Whittier. We stay current with the building code requirements for each jurisdiction in Whittier and the eastern Gateway Cities area so you do not have to worry about compliance.
Schedule a ADU Consultation in Whittier
Call (424) 258-9882 or fill out our online form to book an in-home consultation. We review the scope, discuss materials and sequencing, and provide a written estimate with next steps before any construction begins.
How It Works
Four simple steps from first call to finished job.
Call or Book Online
Reach us at (424) 258-9882 or submit the online form. We respond within two hours on business days.
On-Site Consultation
A project manager visits your home to discuss your goals, take measurements, and review scope.
Design and Estimate
Receive a detailed design plan, materials list, and itemized estimate within five business days.
Build and Deliver
Our crew completes the work on schedule with progress updates, a clean jobsite, and a final walkthrough.
Why Whittier Homeowners Choose Eco Grizzly
Free In-Home Estimate
Schedule a no-obligation site visit. We measure, discuss your vision, and deliver a written quote within five business days.
Licensed and Insured
CSLB license #1077111, full general liability, and workers compensation insurance on every project.
Dedicated Project Manager
One point of contact from design through final walkthrough. Progress photo updates at every milestone.
On-Time Completion
We provide a detailed project schedule with milestones at contract signing and stick to it.
Transparent Pricing
You receive a written, itemized estimate before any work begins. No hidden fees or surprise change orders.
Permit Handling
We pull all required building permits and schedule city inspections so you do not have to.
Real Results
ADU Projects in Whittier
Real adu work completed by our licensed team in the Whittier area.
Before, Rebar & Vapor BarrierConcrete Patio & Room Addition
Southern California
This project combined a large concrete patio pour with a structural room addition. The crew installed a full rebar grid over a vapor barrier, poured and finished the concrete slab, and completed the room addition framing and exterior to match the existing home. The finished patio features a stamped concrete surface with a built-in outdoor kitchen island, creating a seamless indoor-outdoor living area.
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ADU FAQs for Whittier
Common questions answered by our certified technicians.
ADU in Other Areas
Search other cities we serve for adu or browse by county.
Build Your ADU
Serving Whittier homeowners. Call (424) 258-9882 to request an on-site estimate or send your project details online.