.png)
Ridgeline Western Construction
Framing • Additions • New Construction • Remodeling • Residential • Commercial
Accessory Dwelling Unit General Contractor in Brea, CA
Accessory dwelling units are secondary living spaces built alongside a primary residence in Brea; Ridgeline Western Construction handles ADU projects with structural-first construction, coordinating framing, foundation, wall changes, and all licensed sub-trades as a single contract.
What We Build For ADUs in Brea
Ridgeline Western Construction handles structural framing and carpentry for ADUs in Brea, including detached builds, attached additions, and garage or interior conversions. We handle all tie-ins to the existing house—framing new walls, integrating roof lines, opening up or reinforcing where old meets new, and reading every load path so beam sizes, posts, and headers fit the new occupancy and pass inspection. For garage ADUs in Brea, we regularly find underbuilt walls or floor slabs, which get rebuilt or upgraded to support habitable use, along with insulation and required fire separation.
All licensed plumbing, electrical, and HVAC subcontractors are scheduled directly by us under a single contract, so every phase of the ADU is managed as one Brea project. Framing, rough-ins, and inspections are sequenced to move in order, avoiding delays caused by missing trades. Roofing is run through our dedicated licensed roofing partner, but the support structure and sheathing underneath is always managed by us.
Local building departments in Brea handle ADU plan checks, permits, inspections, and Title 24 energy rules. We coordinate from submittal to inspection closeout, and work through city utility departments where new meters, electrical panels, or drainage tie-ins are required. Site access and phasing are addressed up front, since many Brea ADUs are built while the main house stays occupied. Our approach includes specific material calls—fire-rated drywall or engineered lumber for load points—based on what’s required in Brea, Orange, and California. The entire ADU comes together on a single schedule, with every step tied back to the structure and the local code.
Garage Conversion
A garage conversion in Brea transforms your garage into a conditioned living space with full permits and inspections. Ridgeline Western Construction provides the assessment, engineering, and manages the build — slab checks, framing, electrical and plumbing subs, insulation, doors, and finish work. The job runs under one contract and closes with city inspection in Orange.
Backyard Office Shed
A backyard office shed in Brea gives you real workspace without altering your main house. Ridgeline Western Construction handles the full build, from site grading and foundation through finish carpentry and final inspection. We coordinate every required trade, track compliance, and deliver an insulated, legal structure under one contract—ready for office or studio use immediately.
ADU Construction
ADU construction turns unused space or a garage into a legal, fully permitted dwelling in Brea. Ridgeline Western Construction manages everything—engineering, permits, structural buildout, and final finish—on one contract and schedule. You get a single point of contact for design, framing, supervision of every licensed trade, and completed documentation for your property in Brea or anywhere in Orange.
get in touch
Fill In your information below
About Our Accessory Dwelling Unit in Brea
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. In Brea, ADU construction is about building a second dwelling by connecting new structure to what’s already there—sometimes tying in at the roof, sometimes working within a garage shell, or starting from a cleared back lot. Steven is hands-on for every frame-up, assesses existing foundations and walls before work begins, and coordinates the permitting, engineering, and inspection process around the real site conditions in Brea. Every ADU in this area gets treated as part of a whole property, not just a standalone structure—making sure it ties in right with the main house and meets city and state requirements.
ABOUT US
Ridgeline Western Construction
More About ADUs in Brea
ADUs vary by structure. A detached ADU may be a new slab-on-grade or raised-floor building in a rear yard. An attached ADU ties into the existing home’s wall, roof, foundation, and utility paths. Garage conversions keep the existing shell but usually require slab, framing, insulation, opening, and fire-separation upgrades. Junior ADUs work inside the existing home and depend heavily on the original floor plan and bearing walls.
Most ADU calls start with space planning, but the real questions are structural and code-driven. Can the garage framing carry the new use. Can the existing roof be tied into cleanly. Is there room for required setbacks, drainage, utility routing, and fire separation. Wall removals, new openings, beam placement, shear panels, and Title 24 assemblies all affect the final layout.
ADUs require city plan check, permits, inspections, and coordination with utility and energy requirements. Ridgeline Western Construction handles the construction side with framing depth, permit sequencing, licensed sub-trades, and inspection closeout kept under one point of responsibility.
Frequently Asked Questions
Yes. Ridgeline Western Construction is a licensed California Class B general building contractor, fully insured.
Our license number is #1147197Ridgeline 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
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
.png)
.png)
get StARTED
Fill In your information below
View Other Property Types We Work On In Brea
Service Areas
We provide listings of areas we serve if you don't see your city then contact us to confirm.