ADU Company in Muscoy, CA
Kitchen remodeling in Muscoy means working with homes built in the 1950s and 1960s, where original wiring, plumbing, and framing rarely match modern code or modern cookware. Add in summers that stay above 100°F for weeks and dusty Santa Ana winds, and a kitchen remodel here is less about swapping finishes and more about fixing what’s hidden behind the drywall. Sunstone ADU Builders has served Muscoy since 2011, and we build kitchens that hold up to the heat, the dust, and the way families actually use the space. Call (855) 949-1913 when you’re ready to talk through your project.
Why Muscoy Homes Are Different
Muscoy is an unincorporated pocket of San Bernardino County surrounded by the city of San Bernardino, so ADU permits and remodel permits go through county channels rather than city hall. That detail trips up contractors who spend most of their week at city plan check counters. For kitchen remodels and ADUs alike, the county process moves at its own pace, and the applications expect site drawings that reflect what’s actually on the ground, not what the original 1962 permit shows.
The housing stock itself compounds the challenge. Most Muscoy homes are modest single-story builds from the mid-20th century, expanded piecemeal over decades by different owners with different skill levels. We regularly open walls and find junction boxes buried behind drywall, drain lines that slope the wrong direction, and circuits that power half the house on one breaker. Older septic systems are common, and many lots have never had a formal lot-line or septic survey. That’s why our first step on any Muscoy kitchen remodel is a careful site walk and utility check before we commit to a layout. The unpaved lots, variable soils, and easement patchwork mean no two jobs here follow the same template. The good news: we’ve seen every variant, and none of it scares us.
Our Main Muscoy Services
Homeowners in Muscoy tend to call us for two big projects: building a new backyard ADU, or remodeling a bathroom inside the main house. Here’s what each one looks like in this part of the county.
ADU Builders in Muscoy
Adding an ADU on a Muscoy lot almost always starts with a septic and lot-line question, not a floor plan. The large, often unpaved parcels hide easements and drainage patterns that city contractors never think to check. We handle county permitting, prefab and stick-built options, and interior finishes under one contract so you’re not coordinating three different crews. If a backyard unit is on your mind, read our full ADU Builders in Muscoy page for pricing, timelines, and what the county process actually looks like.
Bathroom Remodeling in Muscoy
Muscoy bathrooms from the mid-century era are tight, and their plumbing is usually original galvanized steel that’s corroding from the inside. Summer heat and hard water make it worse. We gut and rebuild with properly vented drains, moisture-resistant drywall, and exhaust fans that actually pull humid air out of the house. For a deep look at costs, layout changes, and what we find in these older homes, see our Bathroom Remodeling in Muscoy service 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 Muscoy
A kitchen remodel in Muscoy means addressing the reality of a mid-century home before choosing cabinet colors. These houses run hot, their electrical panels are often maxed out, and the original plumbing is nearing the end of its service life. We approach every kitchen as a systems job first and a finish job second, because a beautiful island wired into an overloaded circuit is a problem waiting for August. That’s why we handle the full Kitchen Remodeling scope in-house, from panel upgrades and rewiring to counters, cabinets, and lighting.
We also know that Muscoy homeowners often plan a kitchen remodel alongside an ADU build or a bathroom refresh, since both projects share the same utility and permitting headaches. One contractor, start to finish, keeps the county paperwork and the construction schedule from colliding.
Full Kitchen Gut and Rebuild
Signs you need it
Your cabinets are delaminating from decades of dry heat, the floor slopes noticeably, or the wiring is the original cloth-insulated cable from the 1960s.
What it costs in Muscoy
A full gut and rebuild in Muscoy typically runs $35,000 to $60,000, with the upper end reflecting panel upgrades, structural floor repairs, and custom cabinetry.
How we do it
We strip the room to framing, move or upgrade plumbing and electrical, insulate and drywall, then rebuild with new floors, cabinets, counters, and a properly vented hood.
Kitchen Update With New Cabinets and Counters
Signs you need it
The layout works, but the cabinets are worn out, the counters are chipped Formica, and you want a refresh without moving the sink or range.
What it costs in Muscoy
This scope lands between $15,000 and $25,000 in Muscoy, depending on cabinet line, counter material, and whether we need to repair any hidden water damage.
How we do it
We remove the old cabinets and counters, repair the drywall behind them, install new boxes and doors, and finish with your chosen countertop and backsplash.
Rental-Ready Kitchen for an ADU
Signs you need it
You’re building or refreshing an ADU and want a compact, durable kitchen that stands up to tenants and passes county inspection the first time.
What it costs in Muscoy
ADU kitchens in Muscoy run $12,000 to $20,000 for a compact layout with mid-range cabinets, quartz counters, and a full appliance set.
How we do it
We design to the ADU’s square footage, rough in plumbing and electrical to code, install flat-pack or custom cabinets, and finish with durable surfaces that handle heat and hard water.
What Kitchen Remodeling Costs in Muscoy
| Item | Typical range in Muscoy |
|---|---|
| Kitchen update with new cabinets and counters | $15,000 – $25,000 |
| Full gut and rebuild | $35,000 – $60,000 |
| Rental-ready ADU kitchen | $12,000 – $20,000 |
Prices in Muscoy push toward the higher end when the county requires an electrical panel upgrade, when old cast iron drain lines need replacement, or when the lot’s septic system forces a specific kitchen location. We give you a written line-item quote before work starts, and the number on the quote is the number you pay.
How long does a kitchen remodel take in Muscoy?
A full kitchen remodel in Muscoy takes six to ten weeks depending on permit timing with San Bernardino County and what we find behind the walls. Cabinet-only updates run two to three weeks. Call (855) 949-1913 and we’ll give you an honest timeline for your specific home.
Do you handle the county permits for kitchen remodels in Muscoy?
Yes. We prepare and submit all county permit applications for Muscoy kitchen remodels, including electrical, plumbing, and mechanical. If the county’s plan check flags a site condition, we revise the drawings and manage the resubmission. Call (855) 949-1913 for an exact quote, estimates are free.
Brands We Service in Muscoy
We’re an authorized builder and installer for prefab ADU brands including Abodu and Cover, and we specify James Hardie fiber cement siding on ADU exteriors where fire and moisture resistance matter. For traditional structures, we work with Tuff Shed shells and finish interiors in-house. See our brands for the full line and typical lead times in Muscoy.
Pricing for ADU Company in Muscoy, CA
| Service | Typical range in Muscoy |
|---|---|
| Kitchen update with new cabinets and counters | $15,000 – $25,000 |
| Full kitchen gut and rebuild | $35,000 – $60,000 |
| Rental-ready ADU kitchen | $12,000 – $20,000 |
| Bathroom refresh | $6,000 – $12,000 |
| Full bathroom gut and rebuild | $15,000 – $28,000 |
| ADU kitchen bathroom combo | $18,000 – $38,000 |
| Prefab ADU (turnkey, mid-range) | $140,000 – $240,000 |
| Custom ADU | $200,000 – $350,000+ |
| Garage conversion ADU | $90,000 – $150,000 |
| Tuff Shed-style conversion | $60,000 – $110,000 |
What pushes a Muscoy quote upward is almost always underground: septic system relocations, new utility trenching across long unpaved driveways, or panel upgrades the original 1960s electrical service never anticipated. We quote everything upfront with a written line-item estimate, fixed pricing, and no change orders unless you change the scope.
Neighborhoods We Serve in Muscoy
Muscoy is a single unincorporated community within ZIP code 92405, and we work the whole of it: the residential streets off Muscoy Avenue, the parcels along Darby Street and Duffy Street, and the outlying large-lot properties that back up against the county line. Response time for estimates anywhere in Muscoy is typically one to two business days.
- Muscoy Avenue corridor
- Darby Street area
- Duffy Street area
- State Street vicinity
Service Area – Cities Near Muscoy
Sunstone ADU Builders works throughout San Bernardino County from our North Tustin base. If you’re in a neighboring city, we cover San Bernardino, CA, Rialto, CA, Highland, CA, and Crestline, CA as well. Each city has its own permit office and site conditions, so we treat every job as its own project, not a copy of the last one.
Serving Muscoy, CA — Our Local Coverage Area
We’re based in the Muscoy 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 Muscoy
We typically schedule Muscoy estimates within one to two business days. The walkthrough takes about an hour, and we bring a checklist for the specific issues we know to look for here: septic locations, easements, electrical panel size, and site drainage. Call (855) 949-1913 to book.
Yes. Muscoy is unincorporated San Bernardino County, so all structural, electrical, plumbing, and mechanical work goes through county permit channels. We prepare the drawings, submit the application, and manage the plan check process from start to final inspection.
Yes, and we often recommend it. Combining the utility work, permitting, and construction schedule for an ADU and a main-house kitchen remodel usually saves money and weeks of disruption. We run both scopes under one contract and one project manager.
If you’re in Muscoy and ready to talk about a kitchen remodel, an ADU, or a bathroom refresh, call Sunstone ADU Builders at (855) 949-1913. We’ll walk the site, give you straight answers on cost and timeline, and put everything in writing before any work begins.
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 Muscoy Customers Say
"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