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JADU Conversion — Ridgeline Western Construction
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Ridgeline Western Construction

Framing • Additions • New Construction • Remodeling • Residential • Commercial

JADU Conversion

JADU conversion turns an existing bedroom or other living space within your house into a junior accessory dwelling unit with an efficiency kitchen, separate entry, and its own permit record. Ridgeline Western Construction handles the building assessment, plan sets, and any structural changes, then manages every trade under one contract from framing and insulation to cabinetry, electrical, plumbing, and drywall. You get a fully permitted second unit that meets all code and inspection requirements.

Why Choose Ridgeline Western Construction for JADU Conversion

JADU conversion starts with a feasibility check: not every layout works for a junior ADU. Minimum square footage, private entry, interior access to a bathroom, and space for a compact kitchen are all required. Ridgeline Western Construction reviews your existing floor plan and identifies which walls, doors, and systems need to change—often repurposing an existing bedroom or bonus room.

Once the plan is set, we coordinate structural engineering if needed, prepare the permit application, and handle city or county plan check. Our framing and carpentry work covers any required wall adjustments, new entries, or kitchen buildout. Electrical and plumbing rough-in are performed by our network of licensed subcontractors under the same contract—no separate hires required. Inspections follow each phase, from rough trades through insulation and finish.

After final inspection and approval, you have a legal, permitted junior ADU ready for occupancy. All permit records and compliance documentation are provided, so city or county records show the space as an official second unit and you avoid future resale or rental issues.

JADU Conversion — Permits, Inspections, and Documentation

Permits, Inspections, and Documentation

Ridgeline Western Construction manages the entire permit process for your JADU, tracks inspection sequences, and delivers all final documentation. You receive a legal unit with completed city records and verified code compliance for future sale or rental.

JADU Conversion — Turnkey Build with Structural Depth

Turnkey Build with Structural Depth

We self-perform framing, carpentry, and finish work, coordinating licensed subcontractors for plumbing, electrical, and HVAC as needed. One contract covers the project from demolition to final walkthrough—including kitchen, cabinetry, windows, and all new mechanical trades.

JADU Conversion — Feasibility Assessment and Plan Review

Feasibility Assessment and Plan Review

Ridgeline Western Construction starts every JADU conversion by checking your floor plan against minimum area, egress, and plumbing requirements. We recommend layouts that work within your existing structure and clarify what’s possible before any engineering fees or permit applications are paid.

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Need JADU Conversion?

Get your jadu conversion estimate today.

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About Our JADU Conversion Services

Ridgeline Western Construction is owner-operated by Steven Moreno, a general contractor and framing specialist who is on every project from scope meeting through final walkthrough. For JADU conversions, having a framing specialist involved from the start means wall modifications and access changes are handled with structural awareness, not guesswork. We manage engineering, permits, and every licensed subcontractor—so your new junior ADU is legal, safe, and built to hold up, with compliance and city records handled for you.

WHY PROPERTY OWNERS CHOOSE US

5 Star Rated 

Licensed & Insured 

Review Quality Home Services on Facebook.
Review Quality Home Services on Google.
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ABOUT US

Ridgeline Western Construction

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Frequently Asked Questions

  • Yes. Ridgeline Western Construction is a licensed California Class B general building contractor, fully insured.

    Our license number is #1147197

  • Ridgeline Western Construction is based out of San Bernardino serving them and communities throughout southern California including Riverside, Los Angeles, and Orange County.

    If you don't see your city listed, reach out and we'll confirm coverage.

  • Framing, home additions, ADU construction, new home construction, whole-home remodeling, structural work, fire damage rebuilds, and commercial construction in Fontana, CA & throughout San Bernadino. The Owner Steven Moreno is an expert in framing and carpentry with anything falling outside of expertise being managed through him allowing you to have your building under one contract.

  • Yes. Every starts with engineering and permitting mapped out, and closes with inspections and a completed permit record from the building department. You get documentation for every phase.

  • Framing and carpentry are performed by us. Electrical, plumbing, HVAC, and roofing are handled by licensed subcontractors that we schedule and manage under the same contract that way you have one point of contact for your project.

  • Call or text Steven at +1 (909) 676-2814. Go over your project, plans or interest in a plan.. Then he'll walk through the scope and put together an estimate for you to continue

OTHER SERVICES

Ridgeline Western Construction offers a full range of construction services throughout San Bernardino, Riverside, Los Angeles, and Orange counties.

Home Additions

Home Additions

A home addition is a major structural project, not just an expansion of space. Ridgeline Western Construction manages every phase, from structural planning and engineering to permits, framing, finishing, and inspections. One contract covers all trades—the framing and carpentry are always self-performed, and every specialist is scheduled and supervised to keep the work moving as a single project. You get a finished addition designed to meet code, with a permit record that documents every inspection step.

Home Remodeling

Home Remodeling

Whole home remodeling replaces outdated layouts, worn finishes, and compromised framing with new structure, systems, and interiors under a single contract. Ridgeline Western Construction manages the entire process from design, permits, and engineering to framing, utilities, and all finish work. All framing and carpentry are self-performed, every subcontracted trade is managed, and inspections are scheduled in the right order. You get a unified project that delivers a complete, code-compliant home.

Commercial Remodeling

Commercial Remodeling

Commercial remodeling brings offices, retail locations, and workspaces up to current needs—whether through new layouts, finishes, or mechanical upgrades. Ridgeline Western Construction manages every phase, from the initial walkthrough to city inspection sign-off. We coordinate structural changes, framing, carpentry, and all subcontracted trades so you get a remodel that meets code and fits business operations with one point of contact.

View Services By Area of the propery

Kitchens
KITCHENS
Bathrooms
BATHROOMS

Some property types we work on

Single-Family Homes

Single-Family Homes

Detached homes with independent foundations and framing

Residential homes

Residential homes

Standalone homes—wood framing, slab or raised foundations, full permits

Town homes

Town homes

Attached homes with shared walls and frequent HOA oversight

What Our Clients Say about us..

"I connected with Steven Moreno at Ridgeline Western Construction about a year ago when I was scoping out a project. Steven’s knowledge blew me away from framing, additions, new construction, materials, etc. He broke everything down like it was nothing & in a way that I actually could understand. The company is based out of Fontana and covers a huge range from San Bernardino and Riverside all the way through Los Angeles and Orange County. So if you’re in that area and need a general contractor that you can rely on then I would highly recommend Ridgeline Western Construction to get the job done right."

- Thomas Shields

5 out of 5 stars
Facebook review from Thomas Shields
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GET STARTED

TEXT/CALL (909) 676-2814

Service Areas

We provide listings of areas we serve if you don't see your city then contact us to confirm.

San Bernardino County, CA

Riverside County, CA

Orange County, CA

Los Angeles County, CA

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