United Constructors Inc.

Service

Additions & Remodels

Expand and reimagine your home with seamless additions and full remodels.

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Overview

What we build

Whether you're growing your family, building an ADU, or finally giving your home the layout it deserves, our additions and full-home remodels add space, value, and beauty without disrupting your life. Every project is engineered, permitted, and built by our in-house team.

Before & After

Ranch raised to a second story with a timber front portico
Ranch raised to a second story with a timber front portico
Two-story refreshed with stone, timber beams, and new garage doors
Two-story refreshed with stone, timber beams, and new garage doors
Bungalow refinished with a covered craftsman porch
Bungalow refinished with a covered craftsman porch

Benefits

  • Increase usable square footage and resale value
  • Custom designs that match your existing architecture
  • Single point of contact from design to final walkthrough
  • Permitted, inspected and fully warrantied
Additions & Remodels — recent project

Types of projects

Second-story additionsADUs & in-law unitsFull-home remodelsGarage conversionsOpen-concept reconfigurations

Inspiration

Homes we've transformed

Contemporary Wood & Stone — Woodland Setting
Contemporary Wood & Stone — Woodland Setting
Ivory Modern Farmhouse — Board & Batten
Ivory Modern Farmhouse — Board & Batten
Sage Craftsman — Stone Columns & Covered Porch
Sage Craftsman — Stone Columns & Covered Porch

Our Process

How we build with you

  1. Step 1

    Free Consultation

    We meet on-site, listen to your goals, and walk the project together.

  2. Step 2

    Design & Estimate

    Clear, estimate with material selections and 3D renderings when helpful.

  3. Step 3

    Permits & Scheduling

    We can pull all permits and lock in a build schedule that respects your life.

  4. Step 4

    Build

    Our in-house crews execute your build with great communication and weekly progress updates.

  5. Step 5

    Final Completion

    Punch list, Follow through, and a warranty you can count on.

FAQ

Yes. United Constructors Inc. is fully licensed, bonded and insured in California.
Absolutely. On-site consultations and written estimates are always free.
Timelines vary, but we share a realistic schedule before contracts are signed and update it weekly.
Yes — we pull and manage all required permits and inspections.

Free, no-obligation estimate

Ready to transform your home?

Family-owned, 3rd-generation craftsmanship — backed by 30+ years of work across Contra Costa County and the SF Bay Area.

Request a Quote (925) 487-2623