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Garage ADU Conversion — Ridgeline Western Construction
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Ridgeline Western Construction

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

Garage ADU Conversion

Garage ADU conversion turns an existing attached or detached garage into a fully permitted accessory dwelling unit. Ridgeline Western Construction manages the process from initial assessment through completed interior and city sign-off. We handle structural changes, energy code upgrades, utility tie-ins, and all finishing work. Every trade is scheduled and coordinated under one contract, minimizing handoffs and risk. You get a garage transformed into legal, livable space—with permits and inspection records to prove it.

Why Choose Ridgeline Western Construction for Garage ADU Conversion

Turning a garage into an ADU means more than finishes and fixtures. Most garage slabs need new vapor barriers, insulation, and anchorage before walls can go up. Ridgeline Western Construction evaluates the structure and lays out a scope for required upgrades—framing, shear reinforcement, foundation modifications, and any egress or window changes. We coordinate engineering when new load paths or wall removals are part of the design.

Construction follows the city’s inspection sequence: rough framing, rough trades, insulation, drywall, and finishes. Electrical, plumbing, and HVAC are handled by licensed subcontractors we schedule and supervise to ensure code compliance. Windows and doors are upgraded for energy performance per Title 24, and all utility tie-ins are brought up to current standards.

At completion, we manage the final walkthrough and inspection with the city. You receive a closed permit record, a signed-off ADU that is legal for occupancy, and a finished space designed to stay in compliance with current building codes.

Garage ADU Conversion — Coordinated Permits and Inspections

Coordinated Permits and Inspections

Ridgeline Western Construction coordinates the permit path—engineering, documents, city submittals, and every sequence of inspections. We keep all steps under one contract and reduce delays by checking compliance at each handoff. This keeps the project on schedule and helps avoid rework after city inspections.

Garage ADU Conversion — Complete Utility and Energy Upgrades

Complete Utility and Energy Upgrades

We bring your new ADU up to code by managing plumbing, electrical, HVAC, and Title 24 energy features. All work is done by licensed subcontractors, scheduled and supervised as part of the contract. From energy-rated windows and doors to insulation and utility connections, each upgrade is completed to meet current code and signed off by the city inspector.

Garage ADU Conversion — Framing and Structural Upgrades

Framing and Structural Upgrades

Our process starts with a framing-level assessment, identifying where new studs, joists, or shear panels are needed. Many garages need new walls, beams, or foundation anchorage to convert into living space that passes inspection. By self-performing the framing and carpentry, we ensure accurate upgrades and take responsibility if conditions in the walls differ from expectations. The result is a conversion built on structure, not just finishes.

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Need Garage ADU Conversion?

Get your garage adu conversion estimate today.

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About Our Garage ADU 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 garage ADU conversions, structural depth matters—some garages are almost new, some are decades out of code. We begin with a structural survey and handle each phase, from engineering review to utility upgrades, so your new ADU is built on a reliable foundation. We coordinate every subtrade under one contract and keep the entire scope clear from first meeting to city sign-off.

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

ADUs

ADUs

Secondary homes built on the same lot as a primary residence

Detached ADUs

Detached ADUs

Standalone backyard living units with separate structure and systems

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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