ADU Company in Tustin, CA
Kitchen remodeling in Tustin usually costs between $35,000 and $80,000 for a full gut renovation, with most homeowners landing in the $45,000 to $60,000 range. The defining challenge here is the split between 1950s – 1970s ranch homes in the 92780 zip code, where kitchens sit on aging slabs with undersized panels, and the newer 92782 planned communities where HOA rules add a layer of review before a single cabinet gets ordered. Sunstone ADU Builders handles the entire remodel – demolition through final inspection – under one contract. Call (855) 949-1913 for a free estimate.
Why Tustin Homes Are Different
Tustin is a rare ADU and remodeling market split almost perfectly in two. West of the 55, the 92780 grid around Old Town and the Red Hill corridor is dominated by 1950s – 1970s single-story ranch tracts. These homes have wide lots, rear-alley detached garages, and mature avocado and citrus trees that shade old sewer laterals. The garages sit right on the property line with shallow footings, and the original cast-iron water lines carry Orange County’s hard, mineral-laden water – so any kitchen or ADU project touching them means addressing re-piping and slab work that inland tract conversions elsewhere skip entirely.
East of the 55, the 92782 side – Tustin Ranch, Tustin Legacy, and Columbus Square – was built in the 1990s and 2000s under Mello-Roos-era CC&Rs. Attached garages, tight setbacks, and HOA architectural review slow down even projects state law now permits. The Santa Ana wind season pushes us toward reflective roofing and ember-resistant detailing on any detached structure at the foothill edge, while the mild winters mean we rarely worry about freeze protection in new plumbing. Every Tustin job starts with a site read on which of these two realities you’re in.
Our Main Tustin Services
Tustin homeowners call us most often for two projects: building a detached or garage-conversion ADU, and bringing an outdated primary bathroom up to modern standard. Here’s how each one works here.
ADU Builders in Tustin
The 92780 side of Tustin is one of Orange County’s best garage-conversion markets. Those rear-alley detached garages are already separated from the main house, which shortens the path to a legal ADU – but condition varies wildly. We inspect footings, roof framing, and sewer lateral depth before recommending conversion versus new construction, since many of these structures were built with inadequate foundations for living space. In 92782, we spend more time on HOA submittals and setback planning. We build both prefab and stick-built units, and we’re an authorized installer for Abodu, Cover, Dvele, and Plant Prefab. Read more about how we approach it: ADU Builders in Tustin.
Bathroom Remodeling in Tustin
Most 92780 bathroom remodels start with the floor: original mud-set tile over aging wood subfloor, often damaged by decades of mineral-heavy water exposure. We open the floor, assess joists, and plan new waterproofing before anything else. In 92782 homes, the work is usually less structural and more about updating builders’-grade fixtures to something worth living with. Either way, we handle the full scope in-house – demo, plumbing, electrical, tile, glass, and fixtures – so you’re not coordinating a second contractor. See what that looks like: Bathroom Remodeling in Tustin.
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 Tustin
Kitchen remodeling in Tustin runs into two recurring conditions. In the 92780 ranch tracts, the kitchen sits on the original slab with a 100-amp electrical panel that can’t support a modern induction range, while the gas lines and drain pipes under the floor are decades past their useful life. In 92782, the kitchens are newer but tightly configured, and HOA approval often limits changes to exterior venting or window openings. Either way, the project is not just cabinets and countertops – it’s bringing the utilities, waterproofing, and layout up to a level that matches how the home is actually lived in now. For a deeper look at the service outside Tustin, see our Kitchen Remodeling page.
Full Kitchen Renovation
Signs you need it
Layout walls you around, cabinets are delaminating or have water damage at the sink base, and the range is on a circuit that trips when the microwave runs.
What it costs in Tustin
A full kitchen renovation in Tustin typically runs $45,000 to $80,000, with the higher end covering structural changes like removing a load-bearing wall between the kitchen and dining room.
How we do it
We open the walls and floor to confirm framing and plumbing, update the electrical and supply lines, then rebuild in sequence: drywall, cabinetry, countertops, tile, fixtures, and trim.
Kitchen Update – Cabinets, Counters, and Flooring
Signs you need it
The layout works but the surfaces are worn, the cabinet faces are peeling, and the countertop is chipped or stained beyond repair.
What it costs in Tustin
A kitchen update in Tustin typically costs $28,000 to $45,000, covering new cabinet faces or full cabinet replacement, stone or quartz counters, and flooring in the kitchen footprint.
How we do it
We remove existing surfaces without touching the plumbing and electrical where possible, install new cabinets and counters, then replace flooring and reconnect appliances for a functional kitchen in two to three weeks.
What Kitchen Remodeling Costs in Tustin
| Item | Typical range in Tustin |
|---|---|
| Full kitchen renovation | $45,000 – $80,000 |
| Kitchen update (cabinets, counters, flooring) | $28,000 – $45,000 |
| Cabinetry and hardware only | $15,000 – $28,000 |
What pushes the number up in Tustin is the age of the underground plumbing in 92780 and the HOA review cycle in 92782. Our quotes are fixed once we’ve opened the walls and confirmed what’s behind them – no change orders after that point.
How long does a kitchen remodel take in Tustin?
A full kitchen renovation takes six to ten weeks, depending on whether we’re moving plumbing or electrical and whether HOA review applies. An update without structural work runs three to five weeks. Call (855) 949-1913 for a timeline specific to your home.
Do you handle the permits for a Tustin kitchen remodel?
Yes. We pull all required City of Tustin permits, schedule inspections, and close them out. On 92782 properties with HOA jurisdiction, we also prepare the architectural review submittal so the board sees exactly what they’re approving. Estimates are free.
Brands We Service in Tustin
We work with Boxabl and Plant Prefab for prefab ADU structures, Tuff Shed for foundation-ready shells, and we specify James Hardie fiber cement siding on both ADUs and primary-home exterior work. Parts for common cabinet and fixture lines are stocked at our North Tustin location, which keeps most Tustin remodeling jobs moving without waiting on freight. See the full list on our brands page.
Pricing for ADU Company in Tustin, CA
| Service | Typical range in Tustin |
|---|---|
| Kitchen remodeling – full renovation | $45,000 – $80,000 |
| Kitchen remodeling – update | $28,000 – $45,000 |
| Kitchen remodeling – cabinetry only | $15,000 – $28,000 |
| Bathroom remodeling – full | $30,000 – $60,000 |
| Bathroom remodeling – update | $18,000 – $35,000 |
| ADU – detached new construction | $250,000 – $450,000 |
| ADU – garage conversion | $120,000 – $200,000 |
| ADU – prefab unit | $180,000 – $380,000 |
| ADU – kitchen and bath interior finishing | $45,000 – $90,000 |
In Tustin, the biggest price swings come from the condition of the existing garage slab in 92780 and the complexity of HOA-mandated changes in 92782. Every quote is line-itemed before work starts, and the price does not change once we’ve opened walls and confirmed conditions.
Neighborhoods We Serve in Tustin
Our crews work across all three Tustin ZIP codes, from the Red Hill corridor to Tustin Legacy. We’re in these neighborhoods every week:
- Old Town Tustin (92780)
- Tustin Ranch (92782)
- Columbus Square (92782)
- Tustin Legacy (92782)
- Red Hill corridor (92780)
We schedule most Tustin estimates within two business days, with shorter turnaround for projects on the 92780 side where we have crews active daily.
Service Area – Cities Near Tustin
Sunstone ADU Builders is based in North Tustin, CA, and serves Tustin plus the surrounding Orange County cities. We regularly work in Santa Ana, CA on similar 1950s-era tract homes, in Irvine, CA on HOA-governed planned communities, and in Orange, CA on a mix of older and newer housing stock. Project availability depends on crew scheduling, so call early if you’re planning work in one of these areas.
Serving Tustin, CA — Our Local Coverage Area
We’re based in the Tustin 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 Tustin
For kitchen and bathroom remodels, we typically begin demolition two to four weeks after the contract is signed, depending on permit turnaround at the City of Tustin. ADU projects have a longer lead time because of plan review and, in 92782, HOA submittal windows. Call (855) 949-1913 for a current schedule.
Yes. We prepare and submit architectural review packages for Tustin Ranch, Tustin Legacy, and Columbus Square HOAs. State law now supersedes most CC&R language that tries to ban ADUs outright, but the review process still applies, and we manage it so you don’t have to.
No. We’re headquartered in North Tustin and serve Tustin as our core market, but we also take on projects in Santa Ana, Irvine, Orange, and nearby cities when scheduling allows. Our crews are in the 92780 and 92782 ZIP codes daily, which keeps our Tustin response times short.
Ready to talk numbers? Call (855) 949-1913 for a free, line-itemed estimate. We’ll walk your property, take measurements, and give you a fixed price before you commit to anything.
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 Tustin Customers Say
"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"The kitchenette layout he suggested made better use of the space than the one on our original sketch."
— Beatriz Garcia