ADU Company in Orange, CA
Kitchen remodeling in Orange usually runs $28,000 to $65,000 for a full renovation, and the biggest local variable is what’s hiding behind the walls of a 1920s Craftsman or a 1960s tract home. We’re Guest House ADU Builders, and we handle kitchens, bathrooms, and ADUs across Orange with one team from permit to punch-list. Older Orange homes bring real surprises: undersized electrical panels, galvanized plumbing, and load-bearing walls that were never meant to move. If you’re planning a kitchen overhaul alongside an ADU, call (833) 863-7015 to get a free estimate from a contractor who knows what these old Orange houses actually look like inside.
Why Orange Homes Are Different
Orange is a historic citrus town with a large stock of pre-1950 Craftsman and Spanish Colonial homes sitting on generous lots, many with detached garages and alley access. That layout makes garage-conversion ADUs and rear-yard units unusually practical here, but it also comes with a catch: much of the city falls within the Old Towne Orange Historic District, so design review considers massing, roof pitch, and materials before square footage. A garage conversion that faces the alley often clears review faster than a rear addition that changes the visible streetscape. The housing stock ranges from early-1900s bungalows near the Plaza to 1950s and 60s tract homes in the east and south, plus newer subdivisions in the east Orange hills. Many of the older homes still run 100-amp electrical service, which matters when you’re adding a second kitchen, a bathroom, or a full ADU. The climate is warm and semi-arid, so kitchens and ADUs need real ventilation, efficient cooling, and shaded outdoor space. Wildfire ember risk near the eastern hills also pushes smart material choices, which is one reason we specify James Hardie fiber-cement siding on exterior work in Orange.
Our Main Orange Services
Orange homeowners call us most often about two things: building an ADU on a lot that’s zoned for it, and remodeling a bathroom in a house that predates modern plumbing. Both jobs demand someone who understands this city’s permit process and older housing stock.
ADU Builders in Orange
Adding an ADU in Orange means working with the lot you actually have, not the one in a brochure. Many Orange properties have detached garages with alley access that convert cleanly into a rental unit, while rear-yard builds need to respect Historic District design review. We compare prefab systems from Cover, Dvele, and Mighty Buildings against site-built construction so you see the trade-offs in cost, build time, and finish quality before you commit. From foundation to utility connections to final inspection, we handle the full build. ADU Builders in Orange covers the process, pricing, and what your specific lot can support.

Bathroom Remodeling in Orange
Bathrooms in Orange’s older homes were built for a different era: smaller footprints, cast-iron drains, and ventilation that barely existed. A remodel here often means reworking the plumbing stack, adding a vent fan that actually moves air, and waterproofing for a room that now handles daily showers instead of weekly baths. We do full bathroom renovations, from moving walls in a 1920s bungalow to gutting a dated 1960s hall bath in the east side. If you’re planning an ADU at the same time, we coordinate both projects so the plumber and electrician show up once. Bathroom Remodeling in Orange walks through scope and cost in more detail.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Kitchen Remodeling in Orange
Kitchen remodeling in Orange means working with homes from three distinct eras, each with its own set of problems. A 1920s Craftsman near the Plaza often has a galley kitchen with load-bearing walls, knob-and-tube remnants, and zero insulation. A 1960s tract home in east Orange usually has a larger footprint but particle-board cabinets, laminate counters, and an electrical panel that can’t handle modern appliances. In both cases, the remodel isn’t cosmetic; it’s structural, electrical, and sometimes plumbing work before the finishes ever go in. Kitchen Remodeling projects in Orange typically run six to ten weeks depending on scope and what we find when the walls open up.
Cabinet and Countertop Replacement
Signs you need it
Cabinet doors are delaminating, drawer slides bind or fall out, and the countertop has burn marks, deep stains, or water swelling at the seams.
What it costs in Orange
Cabinet refacing runs $7,000 to $16,000, while full cabinet replacement with new countertops typically lands between $15,000 and $30,000 in Orange.
How we do it
We measure the full kitchen, order cabinets or door fronts to fit, remove the old boxes, set new ones level, then template and install countertops with sink and faucet in place.
Full Kitchen Renovation
Signs you need it
The layout doesn’t work for how you cook, the plumbing and wiring can’t keep up, or the room needs to be opened up before an ADU tenant shares the wall.
What it costs in Orange
Full kitchen renovations in Orange range from $28,000 to $65,000 depending on whether walls move, the panel gets upgraded, and what finish level you choose.
How we do it
We demo to the studs, move or reframe walls as needed, upgrade plumbing and electrical, then rebuild with new drywall, flooring, cabinets, counters, and appliances.
What Kitchen Remodeling Costs in Orange
| Item | Typical range in Orange |
|---|---|
| Cabinet refacing | $7,000 – $16,000 |
| Full cabinet and countertop replacement | $15,000 – $30,000 |
| Full kitchen renovation | $28,000 – $65,000 |
Do I need a permit for a kitchen remodel in Orange?
Yes. Any work that moves plumbing, electrical, or load-bearing walls requires a permit in Orange. We pull all permits and schedule inspections, so you never have an open permit on the property when the project wraps.
Will my kitchen remodel cost more because my Orange home is old?
Often, yes. Homes built before 1950 frequently need electrical panel upgrades, galvanized pipe replacement, and structural fixes once walls open. We give you a written line-item quote so you see exactly where those costs sit before work starts.
Brands We Service in Orange
We work with Cover, Dvele, and Mighty Buildings prefab systems in Orange, with common components and finish materials stocked locally or sourced through established regional suppliers. Most hardware and cabinetry orders for these brands arrive within two to three weeks. See our brands for the full comparison of what each system offers.
Pricing for ADU Company in Orange, CA
| Service | Typical range in Orange |
|---|---|
| ADU design and permit drawings | $5,000 – $12,000 |
| Prefab ADU build (turnkey) | $180,000 – $350,000 |
| Site-built ADU construction | $250,000 – $420,000 |
| Garage conversion to ADU | $120,000 – $200,000 |
| ADU foundation and utility connections | $30,000 – $80,000 |
| Bathroom remodel (small or hall) | $14,000 – $25,000 |
| Primary bathroom remodel | $25,000 – $45,000 |
| Cabinet refacing | $7,000 – $16,000 |
| Full cabinet and countertop replacement | $15,000 – $30,000 |
| Full kitchen renovation | $28,000 – $65,000 |
In Orange, costs push higher when we’re working inside the Historic District because design review can require specific window patterns, roof pitches, and exterior materials that add to the budget. Older homes also carry that hidden cost layer: panel upgrades, cast-iron pipe replacement, and foundation work that doesn’t show up in a showroom brochure. We price every project with a fixed, written line-item quote before work starts, and we don’t change it with change orders unless you change the scope.
Neighborhoods We Serve in Orange
We work across the full span of Orange, from the tree-lined streets of Old Towne and the Plaza to the tract homes east of the 55 and the newer hillside subdivisions. ZIP codes we cover include 92859, 92862, 92863, and 92864. We’re typically in the area several days a week, with response times under 24 hours for estimate requests in most Orange neighborhoods.
- Old Towne Orange
- Plaza Historic District
- East Orange
- Orange Hills
Service Area – Cities Near Orange
In addition to our work across Orange, we serve homeowners in the surrounding communities with the same ADU, kitchen, and bathroom remodeling services. We regularly work in Villa Park, CA, North Tustin, CA, Tustin, CA, and Anaheim, CA. Each of these areas has its own permit patterns and housing eras, and we bring the same brand-agnostic ADU comparison and fixed pricing to every project.
Serving Orange, CA — Our Local Coverage Area
We’re based in the Orange area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About ADU Company in Orange
We usually schedule estimates within a few days of your call, and we can often get to Orange properties within 24 to 48 hours when you have a project that’s ready to scope. Call (833) 863-7015 and we’ll find a time that works.
Yes. We’ve worked through the Old Towne Orange Historic District design review process and know what triggers comment: roofline changes, street-facing massing, and exterior materials that don’t match the surrounding block. We prepare submittals that anticipate those review points.
Yes, and many Orange homeowners bundle them because the plumbing and electrical trades arrive once and the site work is coordinated. One contractor, one permit set, one schedule. Call (833) 863-7015 to get a combined estimate.
If you’re planning a kitchen remodel, bathroom renovation, or ADU in Orange, call Guest House ADU Builders at (833) 863-7015 for a free, written estimate. We match you to the right ADU system – not the one we happen to sell – and we price the whole project before the first wall opens.
What happens when you call
- 1A real person answersNo phone trees — talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Orange Customers Say
"He gave us a realistic rental number for the finished unit rather than the optimistic one, and it's renting for about what he said."
— David Nguyen"Knew the local setback and parking rules cold, which saved us from designing something that would never have been approved."
— Yolanda Morales"The kitchenette layout he suggested made better use of the space than the one on our original sketch."
— Adriana Garcia