ADU Company in Placentia — Plans, Permits & Build, One Fixed Price

We handle the design, the engineering, and the city permit, then build it. One contract, one crew, one accountable point of contact. Free feasibility check on your lot before you commit.

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ADU Company in Placentia, CA

Kitchen remodeling in Placentia usually means opening up a 1950s or 60s ranch layout where the original kitchen was built for one cook, one oven, and a breakfast nook that hasn’t seen breakfast since Nixon was in office. The homes here in 92870 and 92871 have good bones but dated plumbing, undersized 100-amp panels, and small windows that bake under inland Orange County sun. We handle the whole job, from moving a load-bearing wall to installing the venting and cabinet hardware, so you don’t bounce between a designer, an electrician, and a cabinet shop. Call (833) 589-8273 for a free estimate.

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Why Placentia Homes Are Different

Placentia’s housing stock is overwhelmingly post-WWII single-story ranch and 4-over-2 apartment stock, and that changes every remodel conversation we have. The original 1950s-60s tracts in 92870 and 92871 were built before both the 2017 state ADU laws and the city’s own ADU ordinance, so most detached-garage lots sit in a narrow sweet spot: they qualify for a genuinely detached, full-size ADU without lot-split or setback exceptions, exactly the configuration that builders of newer Placentia infill can’t easily do. But those same lots carry pre-1960s tract easements that can place the garage on a narrow 10-foot side setback, so a detached ADU becomes a driveway-rework problem unless you plan for it early.

The other big driver on any ADU call in Placentia is negotiating the gap between pre-1970s tract plumbing and panel service and a second dwelling’s modern load. Many homes still run 100-amp panels. Add a minisplit, an induction cooktop, a washer/dryer, and you’re at the panel’s ceiling before the first inspection. Inland North Orange County heat and Santa Ana wind events also make ADU comfort a design issue a build alone can’t solve. Shade trees, cool roofs, and right-sized minisplits are standard calls we make here. The occasional winter rain further stresses flat and low-slope ADU roofs, so flashing and drainage details matter more in Placentia than they do closer to the coast.

Our Main Placentia Services

Most Placentia homeowners reach out about one of two projects: adding an ADU to a 1950s-60s lot, or gutting and rebuilding a tired bathroom. Both run into the same local realities here, old panels, tight side setbacks, and heat that punishes cheap fixtures.

ADU Builders in Placentia

Adding an ADU in Placentia usually starts with a question: does the existing detached garage convert well, or should you build new in the side yard? The pre-1960s tracts here often have 400-500 sq ft detached single-car garages that convert cleanly, but some sit on 10-foot side setbacks that kill a detached plan unless the driveway moves. We walk each lot with both prefab and site-built pricing so you see the real difference. In-house kitchen and bathroom finishing means one crew takes the ADU from slab to move-in. ADU Builders in Placentia

ADU Builders in Placentia

Bathroom Remodeling in Placentia

Placentia bathrooms from the 50s and 60s are small, often 5×8 or 5×9, with galvanized drain lines and tile set over drywall. We open the walls, replace the old plumbing with PEX and ABS, and rebuild the layout so a 5×8 actually works for two adults. Heat is a real concern here, so we spec exhaust fans that move enough air for inland summer humidity, not the cheap builder units. The same crew that finishes ADU interiors handles the tile, glass, and fixtures, so you don’t get a subcontractor handoff mid-job. Bathroom Remodeling in Placentia

Bathroom Remodeling in Placentia
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Call (833) 589-8273

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 is usually a floor-plan fix before it’s a finish pick. The 1950s-60s ranch homes here close the kitchen off from the dining room, run one 15-amp circuit for the whole room, and vent the range into the attic if at all. So we spend the first part of every Placentia kitchen job on load calcs, a new dedicated appliance circuit or two, and a layout that connects the kitchen to the living space without losing the cabinet storage these smaller ranches depend on. Inland heat also drives spec choices: under-cabinet LED strips, a real range hood, and quiet ceiling fans make the room usable in August. We offer Kitchen Remodeling from the same crew that builds ADUs, so the cabinet installer and the electrician answer to one schedule, one contract, and one person you can call.

Cabinet Refacing and Replacement

Signs you need it

The cabinet frames are sound but the doors are delaminating, the hinges sag, or the interiors are the original 1960s plywood that shatters when you try to re-hang a drawer.

What it costs in Placentia

Refacing a typical 10×10 Placentia kitchen runs $4,500 to $9,000; full replacement with new hardwood or plywood boxes and soft-close hardware runs $10,000 to $25,000.

How we do it

We measure the boxes, confirm the frames are square and the wall studs are sound, then either lay new veneer and doors over the existing boxes or pull the old cabinets and install new ones level on shimmed rails, finishing with soft-close hinges and full-extension drawers.

Countertop Upgrades

Signs you need it

The original tile counters have crumbling grout lines, the laminate is peeling at the seams, or the sink cutout shows water damage around the edges.

What it costs in Placentia

Laminate or butcher block runs $2,000 to $4,500; quartz or granite with an undermount sink runs $4,500 to $9,500 for a typical Placentia kitchen.

How we do it

We template the existing base cabinets exactly, check the run for level, then install the new counter with a waterproof seam at the sink and a backsplash that matches the cabinet height, so the whole run reads as one plane.

What Kitchen Remodeling Costs in Placentia

Item Typical range in Placentia
Cabinet refacing (10×10 kitchen) $4,500 – $9,000
Full cabinet replacement (10×10 kitchen) $10,000 – $25,000
Countertops (laminate or butcher block) $2,000 – $4,500

What pushes price up in Placentia is the old wiring. If your panel is original 100-amp and we’re adding an induction range, hood, and two appliance circuits, the panel upgrade can add $3,000 to $5,000 to the job before a single cabinet is hung.

How much does a full kitchen remodel cost in Placentia?

A mid-range full remodel runs $25,000 to $60,000, but a panel upgrade, relocating the sink, or taking out a wall can move the number quickly. Call (833) 589-8273 for an exact quote, estimates are free.

Will the price change once work starts?

Only if we find something hidden behind the walls, and we price those discoveries as line-item change orders before touching them. Call (833) 589-8273 to talk through your scope.

Brands We Service in Placentia

We work with most major prefab ADU manufacturers, including Mighty Buildings, Boxabl, and Plant Prefab, and carry the common hardware and trim parts to keep a Placentia build moving between factory runs. Our brands page covers the full roster.

Pricing for ADU Company in Placentia, CA

Service Typical range in Placentia
ADU garage conversion (400-500 sq ft) $120,000 – $180,000
Detached ADU, site-built (500 sq ft) $200,000 – $300,000
Detached ADU, prefab (500 sq ft) $150,000 – $250,000
Kitchen cabinet refacing $4,500 – $9,000
Kitchen full cabinet replacement $10,000 – $25,000
Kitchen countertops (laminate or butcher block) $2,000 – $4,500
Kitchen countertops (quartz or granite) $4,500 – $9,500
Bathroom remodel, full (5×8) $15,000 – $30,000
Bathroom remodel, primary suite $30,000 – $60,000

The two things that push Placentia prices up fast are panel upgrades to replace the original 100-amp service, and trenching work when the old coral or sidewalk setbacks require new drain and water lines. We write line-item quotes and price any hidden conditions as a change order before work continues, so the number you approve is the number you pay.

Neighborhoods We Serve in Placentia

Our Placentia crews work the full city, including the older ranch tracts near Bradford Avenue and the pockets off Yorba Linda Boulevard and Alta Vista Street. We’re familiar with the pre-1960s easements and 10-foot side setbacks that come up on detached ADU proposals here, and our estimates include a site visit to confirm those conditions before we quote.

  • Old Towne Placentia area
  • Alta Vista neighborhood
  • Placentia Village
  • Bradford Place
  • Golden Avenue tracts

We usually schedule estimates in Placentia within two to four business days and can often start kitchen and bath remodels within three to five weeks once the permit is issued.

Service Area – Cities Near Placentia

If you’re in a neighboring city, the same team covers Brea, CA, Anaheim, CA, Fullerton, CA, and Yorba Linda, CA. Each of those cities has its own older tract housing and panel-service quirks, so we run the same site visit and line-item quote process everywhere we work.

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 (833) 589-8273

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

"Every invoice was tied to a completed milestone, so I always knew what I was paying for."

— Gilbert Vargas

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

— Ryan Padgett

"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."

— Andres Rodriguez

How It Works in Placentia

Getting your adu handled is simple and fast.

1

Call or Request a Free Estimate

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

2

Licensed Technician Dispatched

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

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

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