ADU Company in Placentia — One Fixed Price, Permits Handled

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ADU Company in Placentia, CA

Kitchen remodeling in Placentia usually means reworking a 1950s-to-1970s tract home layout that was never designed for how families cook and gather today. We’re Sunstone ADU Builders, and while ADUs are our core, the kitchen work we do in Placentia comes from the same team that finishes ADU interiors, so the cabinet hardware, tile, and plumbing fixture choices carry over seamlessly. Placentia’s older single-story stock has deep lots but small original kitchens – often 80 to 120 square feet – and the remodel conversation here is about opening walls, adding a peninsula or island, and bringing ventilation and lighting up to current expectations. Call (855) 949-1913 to talk through what your kitchen could become.

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Why Placentia Homes Are Different

Placentia’s housing stock skews heavily toward 1950s through 1970s single-story tract homes: stucco over wood frame, slab-on-grade foundations, and original kitchens that were built as closed-off rooms with a single window and a drop-in range. When we open those walls, we consistently find the same conditions: 2×4 framing with minimal insulation, cast-iron drain lines that have been in the ground for sixty years, and electrical panels that were sized for an era before microwaves and air fryers. The slab-on-grade foundation matters for kitchen work because moving a sink or adding a gas line means saw-cutting concrete, not crawling under a raised floor. Placentia’s warm-summer Mediterranean climate means the Santa Ana winds push heat into west-facing kitchens in the afternoon, so we recommend range hoods with real CFM and windows or skylights positioned for cross-ventilation rather than relying on air conditioning alone. In the Old Town and Atwood pockets, post-WWII homes have even smaller footprints, and a kitchen remodel there often means capturing square footage from an adjacent utility room or back porch rather than any kind of addition. Homeowners in the newer 1980s-90s two-story pockets off Yorba Linda Boulevard typically have more room to work with but face dated oak cabinets and laminate countertops that look tired next to the rest of the house.

Our Main Placentia Services

Two projects dominate the calls we get from Placentia homeowners: building a new ADU in the backyard, and remodeling an existing bathroom. Both tie directly to the city’s older housing stock and deep-lot tract layout.

ADU Builders in Placentia

Placentia’s mid-century R-1 lots are unusually deep for Orange County, which means a detached rear-yard ADU often clears setback requirements without triggering massing review – and that’s exactly where the prefab brands we’re authorized to install, including Abodu and Plant Prefab, come into their own. Garage conversions are the other common path here, particularly on the smaller Old Town lots where a new structure simply won’t fit. We handle the full scope: structure, foundation, utility connections, and the kitchen and bath interiors that make the unit rental-ready. See the full breakdown at ADU Builders in Placentia.

ADU Builders in Placentia

Bathroom Remodeling in Placentia

Original bathrooms in Placentia’s tract homes are compact – many are 5×8 hall baths with a single vanity and tub-shower combo. Remodeling them means working around slab plumbing and aging galvanized supply lines, and when the bathroom belongs to a new ADU, we scope the tile, fixtures, and waterproofing to rental-grade durability from day one. Homeowners often pair a hall bath remodel with a kitchen project to avoid living through construction twice. Details on scope and finishes are at Bathroom Remodeling in Placentia.

Bathroom Remodeling in Placentia
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What happens when you call

  1. 1
    A real person answersNo phone trees — you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Kitchen Remodeling in Placentia

Kitchen Remodeling in Placentia

Kitchen remodeling in Placentia typically runs $28,000 to $75,000 depending on whether you’re refacing cabinets in place or reworking the entire footprint, and most of our projects here involve opening a load-bearing wall between the original galley kitchen and the dining room. Because Placentia’s slab-on-grade homes bury supply and drain lines in concrete, the single biggest cost variable is whether you move the sink, range, or dishwasher – each moved fixture means core drilling and new below-slab piping. We scope every kitchen job with those Placentia-specific realities in mind, from cast-iron drain replacement in 1950s-era Old Town homes to full layout reconfigurations in the 1980s two-story pockets. For a broader look at how we approach kitchen work, see Kitchen Remodeling.

Full-Gut Kitchen Rebuild

The most common kitchen project in Placentia’s 1950s-70s tract homes: remove everything to the studs, replace the slab-cut plumbing and electrical, and rebuild the room around the way you actually cook.

Signs you need it

Warped particleboard cabinets, an original cast-iron sink drain that backs up monthly, or a layout with the range jammed against a doorway – all common in Placentia tract stock.

What it costs in Placentia

A full-gut kitchen rebuild in Placentia typically lands between $45,000 and $75,000, with slab work, custom cabinetry, and structural opening accounting for most of the spread.

How we do it

We demo to studs, saw-cut and replace the below-slab waste and supply lines, reframe openings for the new layout, then rebuild with new electrical, insulation, drywall, cabinets, counters, and appliances.

Cabinet Refacing and Counter Replacement

A lighter-touch remodel for Placentia homeowners whose cabinet boxes are still square and whose layout works, but whose doors, drawers, and laminate counters broadcast the home’s age.

Signs you need it

Solid cabinet boxes with dated oak faces, peeling thermofoil doors, or worn laminate counters paired with a floor plan you’d keep if the surfaces looked current.

What it costs in Placentia

Expect to spend $28,000 to $45,000 in Placentia for refaced cabinets, new doors and drawer fronts, and quartz or solid-surface counters across a typical 10×12 kitchen.

How we do it

We remove existing doors, drawer fronts, and counters, apply new veneers and hardware, install the new countertops, and reconnect the sink and cooktop plumbing with new supply lines and shutoff valves.

What Kitchen Remodeling Costs in Placentia

Item Typical range in Placentia
Full-gut kitchen rebuild $45,000 – $75,000
Cabinet refacing + new counters $28,000 – $45,000
Island or peninsula addition (with slab plumbing) $8,000 – $16,000

How long does a full kitchen remodel take in Placentia?

A full-gut Placentia kitchen typically takes 6 to 10 weeks from demo to final walkthrough; slab plumbing work and structural openings add time over a cosmetic reface, which runs 2 to 4 weeks.

Will moving my sink or range drive the cost up?

Yes – any fixture moved on a Placentia slab foundation means saw-cutting concrete and running new drain and supply lines, which adds $3,000 to $7,000 per moved fixture depending on the run.

Brands We Service in Placentia

We’re authorized to build and install prefab ADUs from Abodu and Plant Prefab, and we regularly spec James Hardie fiber cement siding for Placentia ADU exteriors that face afternoon sun and Santa Ana wind. Tuff Shed-style structures round out the options. See our brands for the full lineup.

Pricing for ADU Company in Placentia, CA

Service Typical range in Placentia
Detached prefab ADU (turnkey) $180,000 – $350,000
Garage conversion ADU $120,000 – $220,000
Traditional stick-built ADU $250,000 – $450,000
Tuff Shed-style ADU finish-out $80,000 – $150,000
Full-gut kitchen rebuild $45,000 – $75,000
Cabinet refacing + new counters $28,000 – $45,000
Island or peninsula addition $8,000 – $16,000
Full bathroom remodel $18,000 – $38,000
Guest bath remodel (compact) $12,000 – $22,000
Bathroom refresh (fixtures, tile, vanity) $8,000 – $15,000

In Placentia, prices push toward the top of those ranges when we’re saw-cutting slab for moved kitchen or bath fixtures, replacing a 60-year-old cast-iron sewer lateral, or opening a load-bearing wall. Our quotes are written line-item and fixed; we don’t change the number once work starts unless you change the scope.

Neighborhoods We Serve in Placentia

We work across Placentia, from the post-WWII small homes in Old Town and Atwood, through the deep-lot tract neighborhoods near the 57 and 91 confluence, to the 1980s-90s two-story pockets east of Yorba Linda Boulevard. Our crews are based in North Tustin, so we’re typically on-site in Placentia within 30 to 40 minutes.

  • Old Town
  • Atwood
  • Placentia Village
  • Alta Placentia
  • Golden Hills

Service Area – Cities Near Placentia

Sunstone ADU Builders serves Placentia and the surrounding North Orange County cities. We regularly take on ADU builds and kitchen or bath remodels in Brea, CA, Anaheim, CA, Fullerton, CA, and Yorba Linda, CA. If your project sits near the 57 or 91 corridor, we can reach you the same week for a site visit.

Serving Placentia, CA — Our Local Coverage Area

We’re based in the Placentia 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 Placentia

Ready to get started? Free estimates · Free on-site estimates response in Placentia
Call (855) 949-1913

What happens when you call

  1. 1
    A real person answersNo phone trees — talk to a local adu pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Placentia Customers Say

★★★★★ 5.0 from 4+ reviews

"He was honest that our lot had a slope problem that would add real cost, before we signed anything."

— Paul Pruitt

"The kitchenette layout he suggested made better use of the space than the one on our original sketch."

— Beatriz Garcia

"Detached unit in the back yard. Utilities trenched, separate meter, and it passed final on the first inspection."

— Reggie Ellison

How It Works in Placentia

Getting your adu handled is simple and fast.

1

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Tell us about your adu needs and we provide an upfront, transparent quote — no obligation, no hidden fees.

2

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A background-checked, certified technician arrives in Placentia — typically within 30–60 minutes, with parts stocked on the truck.

3

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