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Guest House & Casita Construction — Ridgeline Western Construction
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Ridgeline Western Construction

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

Guest House & Casita Construction

Guest house and casita construction takes an empty backyard, detached garage, or space above a garage and turns it into a finished, permitted secondary dwelling unit. Ridgeline Western Construction handles design coordination, structural planning, permits, and manages construction from foundation through finish. Owner Steven Moreno is personally on site through all phases, from framing to final walkthrough. You get one contract covering all trades, with framing and carpentry self-performed and every other specialist scheduled and supervised to completion.

Why Choose Ridgeline Western Construction for Guest House & Casita Construction

Adding a guest house or casita to a property means managing a full build process in a smaller footprint, with structural, zoning, and utility requirements guided by local ADU regulations. Ridgeline Western Construction starts with zoning review and basic site planning, bringing in design or architectural input if you do not already have plans. We coordinate the engineer’s structural details and handle city submittal for permit approval, so both size allowances and setbacks are addressed before construction begins.

Construction includes grading, concrete foundations, wood or engineered framing, Title 24-compliant windows and doors, insulation, drywall, cabinetry, finish carpentry, and all specified exterior assemblies. Electrical, plumbing, and HVAC are each subcontracted to licensed specialists we supervise and schedule under the same contract. Roofing is delivered through our dedicated and licensed roofing partner. The process is managed to keep foundation, framing, and rough trades inspection-ready in sequence, not left waiting on missed steps.

Final inspections are scheduled and tracked, so when the last finish phase wraps, the permit record closes cleanly. You walk the completed guest house with us—Steven Moreno on site—to review fit and finish and clarify maintenance or code points. The result is a fully permitted guest house or casita with a single permit record and no loose ends between trades.

Guest House & Casita Construction — All Trades Scheduled Under One Contract

All Trades Scheduled Under One Contract

Ridgeline Western Construction contracts and coordinates every licensed subcontractor needed for the job—concrete, roofing, electrical, plumbing, HVAC, drywall, painting, and finish. You do not have to chase bids or schedule overlapping trades. One point of contact keeps the project moving, addresses scope changes clearly, and closes the permit as a single record.

Guest House & Casita Construction — Permit-Ready Process and Zoning Review

Permit-Ready Process and Zoning Review

Ridgeline Western Construction begins every guest house or casita project by verifying zoning rules, setback requirements, and utility access for your specific lot. We coordinate with your architect or designer if you have one, or connect you with professionals for the design step. The process reduces mid-project delays and avoids costly surprises from incomplete planning.

Guest House & Casita Construction — Framing and Structure Managed In-House

Framing and Structure Managed In-House

Owner Steven Moreno is a framing specialist who leads the build from the first stud to the final nail. By self-performing the wood or engineered framing and supervising any structural changes, we ensure the new unit is structurally sound and built to comply with all plan details and load path requirements. This control reduces risk of missed structural inspections and keeps the shell tight and true.

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Need Guest House & Casita Construction?

Get your guest house & casita construction estimate today.

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About Our Guest House & Casita Construction Services

Ridgeline Western Construction is owner-operated by Steven Moreno, a general contractor and framing specialist who is on every project from initial scope through walkthrough. For guest house and casita construction, his presence on site means that every phase—site prep, structural framing, rough trades, and finish—is performed or managed directly by the contractor you met at the start. With one contract covering all trades, framing and carpentry self-performed, and every specialty trade scheduled and supervised, you get a permitted guest house or casita ready for final inspection and use. Licensed, bonded, and insured, we deliver the full process from zoning review to the completed unit.

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.

New Home Construction

New Home Construction

New home construction means taking your project from bare lot to a fully permitted house, with every phase supervised and delivered under one contract. Ridgeline Western Construction organizes the build from engineering to final punch list, self-performs all framing and carpentry, and manages every licensed subtrade for roofing, exterior, windows, and interiors. You get direct involvement from the owner, step-by-step city inspections, and a construction process anchored by structural expertise.

Custom Home Builder

Custom Home Builder

Custom home construction starts with a blank lot or teardown, moves through engineering and permits, and ends with a signed-off, move-in ready house. Ridgeline Western Construction acts as the single general contractor responsible for the full build, handling framing in-house and coordinating all subcontracted trades. You get one point of responsibility from planning to the final city inspection.

View Services By Area of the propery

Kitchens
KITCHENS
Bathrooms
BATHROOMS

Some property types we work on

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

Attached ADUs

Attached ADUs

Secondary living units connected to main homes, sharing framing and walls

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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