ADU Company in Brea, CA
Kitchen remodeling in Brea usually means working inside a mid-century tract home with a compact footprint, an undersized electrical panel, and a layout that hasn’t changed since the 1960s. We’re Sunstone ADU Builders, and we handle those kitchens as part of a larger picture: the ADU going up in the backyard, the bathroom that has to serve a renter, and the main-house kitchen that suddenly feels cramped once the in-laws move onto the property. Call (855) 949-1913 when you’re ready to talk through what’s possible on your lot.
Why Brea Homes Are Different
Brea splits into two housing worlds, and both create ADU and remodel challenges that don’t show up on a spec sheet. The flat lots near downtown, in neighborhoods like the ones off Brea Boulevard and around the Brea Mall area, are mostly 1940s to 1960s tract homes. These houses have detached garages, original 60-amp or 100-amp panels, and simple post-and-beam framing. They’re straightforward on paper, but they’ve had seventy years of previous owners making changes. We find unpermitted additions, old galvanized supply lines, and service panels that can’t support a new kitchen range, let alone a backyard ADU with its own subpanel.
The hillside homes north and east of downtown, in the 1980s through 2000s planned communities, are a different animal entirely. Many sit on post-tension slabs over fill that’s been regraded for decades. Some of that fill dates back to the Olinda oil field era, and a lot that looks flat on a plat map can hide a buried sump or a compacted slope that needs a geotech review before we quote foundation work. Brea’s hot, dry Santa Ana winds also mean any ADU on a hillside lot abutting open space needs fire-resistant siding and roof drainage that doesn’t concentrate runoff onto the slope below. A flat-lot ADU a mile away might never deal with those conditions.
Our Main Brea Services
The two projects Brea homeowners call us about most are full ADU construction and bathroom remodels that go hand-in-hand with a new unit. Both share one thing: they’re easier when one contractor handles the structure and the finishes.
ADU Builders in Brea
Building an ADU in Brea starts with understanding slope, setbacks, and what the city will approve on your specific parcel. The flat lots near downtown often work well for detached garage conversions or prefab units. The hillside lots need engineered foundations, retaining walls, and drainage plans before anything gets framed. We build both prefab and stick-built, and we’ll tell you which fits your lot and budget. See our ADU Builders in Brea page for the full breakdown.
Bathroom Remodeling in Brea
A bathroom remodel in Brea usually means updating a 1960s hall bath with original tile and a cast-iron tub, or finishing the ADU bathroom before the unit gets a tenant. Older Brea homes often have water damage hiding under the original mosaic floor, and hillside homes can have slab penetrations that need careful waterproofing. We scope the bathroom as part of the whole project so the ADU and main house move forward together. Learn more on our Bathroom Remodeling in Brea page.
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 Brea
A Brea kitchen remodel usually means pulling a 1950s or 1960s kitchen out of its original footprint and rebuilding it to handle modern appliances, more counter space, and a family that actually cooks. The older tract homes around downtown Brea were built with small kitchens, limited outlets, and no built-in ventilation. When we remodel one, we’re also correcting electrical deficiencies and planning for the possibility that an ADU tenant or extended family will eventually use the kitchen harder than the original owners ever did. Whether the job is part of an ADU project or a standalone remodel, we handle the full scope in-house, see our Kitchen Remodeling page for the range of work we do.
Full Kitchen Renovation
Signs you need it
The layout blocks the cook from the fridge and sink, the cabinets are delaminating at the base, or the original 60-amp service can’t support a modern range and microwave together.
What it costs in Brea
A full kitchen renovation in Brea typically runs $35,000 to $50,000, depending on whether we’re moving plumbing and reframing walls or working within the existing footprint.
How we do it
We strip the room to studs, correct the framing and electrical, rough in new plumbing and ventilation, then install cabinets, stone or quartz counters, tile, appliances, and finish the space with trim and paint.
ADU Kitchen Build-Out
Signs you need it
The ADU shell is up but the kitchen is an empty corner, or you’re planning the unit for a rental and need a durable, code-compliant kitchen that won’t look dated in five years.
What it costs in Brea
An ADU kitchen build-out in Brea generally costs $18,000 to $30,000, with the final number tied to cabinet grade, countertop material, and ventilation requirements.
How we do it
We run the dedicated circuits, install the ventilation, set the cabinets and countertops, and finish with a full-height backsplash and rental-ready appliances before signing off with the city inspector.
What Kitchen Remodeling Costs in Brea
| Item | Typical range in Brea |
|---|---|
| Full kitchen renovation | $35,000 – $50,000 |
| ADU kitchen build-out | $18,000 – $30,000 |
| Cabinet, counter, and appliance package | $10,000 – $18,000 |
How long does a kitchen remodel take in Brea?
A full Brea kitchen remodel usually takes 6 to 10 weeks from demo to final inspection. ADU kitchen build-outs run faster, often 3 to 5 weeks, because the shell is already framed and dried in. Call (855) 949-1913 for a timeline based on your specific scope.
Will my Brea kitchen remodel handle the hot summers?
Yes. We size ventilation and add cooling measures for Brea’s semi-arid climate, including proper range hood ducting and window placement that reduces afternoon heat gain. Call (855) 949-1913 to discuss your kitchen’s specific exposure.
Brands We Service in Brea
We build and install Abodu and Cover prefab units across Brea, and we specify James Hardie fiber cement siding on most detached ADUs for fire resistance on hillside lots. For Tuff Shed-style structures, we handle the permit-ready foundation and utility connections. See our brands for what each option offers.
Pricing for ADU Company in Brea, CA
| Service | Typical range in Brea |
|---|---|
| Prefab ADU (Abodu, Cover, or similar) | $180,000 – $300,000 |
| Traditional stick-built ADU | $250,000 – $400,000 |
| Garage conversion ADU | $120,000 – $200,000 |
| Detached ADU shell only | $100,000 – $180,000 |
| ADU kitchen build-out | $18,000 – $30,000 |
| Full kitchen renovation | $35,000 – $50,000 |
| Bathroom remodel (main house) | $12,000 – $25,000 |
| ADU bathroom build-out | $8,000 – $18,000 |
Hillside lots in Brea push prices up when geotech reports require retaining walls, deeper footings, or drainage improvements that a flat lot never needs. We give you a written line-item quote before work starts, and the price doesn’t change unless the scope does.
Neighborhoods We Serve in Brea
We work across all of Brea, from the flat mid-century tracts near downtown to the hillside communities in the north and east. Our crews are familiar with the HOA design review process in several of the planned developments, and we usually have someone on site within a few days of permit approval.
- Downtown Brea and the 1940s – 60s tracts off Brea Boulevard
- Olinda Ranch and the newer hillside communities
- Blackstone and the neighborhoods around Carbon Canyon
- The area near the Brea Mall and Imperial Highway corridor
- North Hills and the terraced lots east of Kraemer Boulevard
Service Area – Cities Near Brea
Sunstone ADU Builders serves Brea and the surrounding North Orange County cities. If your property is in Placentia, CA, Fullerton, CA, Yorba Linda, CA, or La Habra, CA, we can bring the same Brea-level knowledge of local permit offices and hillside conditions to your project.
Serving Brea, CA — Our Local Coverage Area
We’re based in the Brea 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 Brea
We typically have a project lead in Brea within three to five business days for an initial walkthrough and measurement. If your project is permit-ready, we can often start design and engineering work that same week. Call (855) 949-1913 to schedule the first visit.
Yes. Several Brea hillside communities have HOA design review requirements for detached ADUs, and we prepare the elevation drawings, material samples, and color boards those committees want to see. We’ve worked through enough of them to know what gets flagged early.
We pull all required Brea city permits and schedule every inspection through final sign-off. You never have to chase the building department or track plan-check comments. We carry the project through the entire approval process as part of the contract.
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 Brea Customers Say
"Detached unit in the back yard. Utilities trenched, separate meter, and it passed final on the first inspection."
— Reggie Ellison"Knew the local setback and parking rules cold, which saved us from designing something that would never have been approved."
— Doug Padgett"He was honest that our lot had a slope problem that would add real cost, before we signed anything."
— Paul Pruitt