ADU Company in Mentone — Design, Permits and Build Under One Contract

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 Mentone, CA

Kitchen remodeling in Mentone means working with mid-century ranch homes on large foothill lots, where 60-year-old wiring, dated layouts, and heat-soaked west-facing walls create a very different job than a tract-home refresh down in Redlands. Casita ADU Builders has served Mentone since 2013, and we handle these kitchens with the same turnkey discipline we bring to ADU construction: one team, one contract, no handoffs. If you’re planning an ADU with a full kitchen, or remodeling the main house alongside it, call (877) 658-7475 for a free estimate.

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Why Mentone Homes Are Different

Mentone sits in unincorporated San Bernardino County, tucked against the foothills east of Redlands. That single fact changes how every project runs here. There’s no city planning counter to visit, no city ADU ordinance to navigate. Instead, permits move through the county, and county reviewers operate under a different set of expectations than the incorporated cities around us. Homes in Mentone tend to be mid-century builds on large, sometimes rural parcels, many with horse property, detached garages, barns, and outbuildings that were never permitted or predate current code. When we open up a kitchen or prep an ADU site, we regularly find legacy electrical panels, aging septic lines, and structural quirks that a standard contractor from a newer suburb would not know to look for.

The climate adds another layer. Mentone routinely sees summer days above 100°F, with intense afternoon sun and a high fire-severity rating at the base of the San Bernardino Mountains. That means cooling design is not optional here, and exterior materials matter for more than curb appeal. Fire-resistant roofing, James Hardie fiber-cement siding, and properly positioned mechanical equipment are practical decisions on almost every job we do in the 92359 ZIP code.

Our Main Mentone Services

Two services dominate the calls we get from Mentone homeowners: ADU construction and bathroom remodeling. Both are covered in depth on their own pages, and both benefit from our ADU-only focus and familiarity with county permitting and older foothill properties.

ADU Builders in Mentone

Mentone’s large lots and county-governed rules make it one of the more ADU-friendly pockets of San Bernardino County, but the challenges here are specific. Detached ADUs often require septic capacity determinations, and many properties carry unpermitted outbuildings that complicate the site plan. We work across leading prefab brands including Abodu, Plant Prefab, and Cover, and we also offer a Tuff Shed conversion path that turns an existing structure into a permitted ADU faster than ground-up construction. If you’re weighing a rental unit, a multigenerational suite, or a long-term value play, start with the full breakdown on our ADU Builders in Mentone page.

ADU Builders in Mentone

Bathroom Remodeling in Mentone

Bathrooms in Mentone’s older homes often hide the same issues we find in kitchens: undersized drain lines, exhausted vent fans, and water-damaged subfloors around tubs and showers. Our in-house bathroom team handles full gut renovations, layout changes, and aging-in-place upgrades, all under the same contract we use for ADU interiors. No separate subcontractor to coordinate, no gap between the plumber’s scope and the tile setter’s. Read the local detail on our Bathroom Remodeling in Mentone page.

Bathroom Remodeling in Mentone
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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 Mentone

Kitchen remodeling in Mentone is rarely just a cabinet swap. The typical home here was built between the 1940s and 1970s, which means original galvanized plumbing, undersized electrical services, and layouts designed for a different era of cooking and entertaining. Add in summer heat that punishes under-insulated walls and aging HVAC, and a good remodel becomes as much about systems and comfort as it does about finishes. For a broader look at how we approach kitchens across every market we serve, see our Kitchen Remodeling hub.

Full Kitchen Gut and Redesign

Signs you need it

Your layout traps you at the stove while family walks through, cabinet boxes are rotting at the toe kick, and the floor dips where the old dishwasher has leaked for years.

What it costs in Mentone

A full kitchen gut and redesign in Mentone typically runs $60,000 to $120,000 depending on cabinetry, appliance tier, and structural fixes we uncover after demo.

How we do it

We demo to the studs, verify framing and subfloor condition, reroute plumbing and electrical to the new layout, then complete drywall, cabinetry, countertops, appliances, flooring, and finish trim under one contract.

Kitchen Update for an ADU

Signs you need it

You’re adding a detached or garage-conversion ADU and need a complete kitchen built to code, sized for the unit, and finished to match the main house.

What it costs in Mentone

An ADU kitchen package in Mentone, including cabinetry, countertops, a cooktop, and a refrigerator, typically falls between $18,000 and $35,000 depending on finish level and appliance choices.

How we do it

We design the kitchen to fit the ADU’s footprint, coordinate the rough plumbing and electrical before drywall, then install cabinets, counters, a compact appliance suite, and all required venting before final inspection.

What Kitchen Remodeling Costs in Mentone

Item Typical range in Mentone
Full kitchen gut and redesign $60,000 – $120,000
ADU kitchen package $18,000 – $35,000
Cabinet refacing and new countertops $9,000 – $22,000

Will a Mentone kitchen remodel require upgrading the electrical panel?

Often, yes. Homes from the 1940s to 1970s frequently have 60- or 100-amp panels that cannot support a modern kitchen with induction cooking, dedicated appliance circuits, and proper lighting. Call (877) 658-7475 for an exact assessment.

How long does a full kitchen remodel take in Mentone?

Most full kitchen remodels in Mentone run 6 to 10 weeks from demo to final walkthrough, depending on the extent of plumbing and electrical reroutes and any structural repairs uncovered along the way. We provide a written schedule before work starts.

Brands We Service in Mentone

We’re brand-agnostic by design, so Mentone homeowners get matched to the right ADU product rather than the only one we sell. Our builder relationships include Abodu, Plant Prefab, and Cover, plus a Tuff Shed partnership for shed-conversion projects. Exteriors use James Hardie fiber-cement for fire resistance and longevity. See the full lineup on our brands page.

Pricing for ADU Company in Mentone, CA

Service Typical range in Mentone
Full kitchen gut and redesign $60,000 – $120,000
Kitchen update for an ADU $18,000 – $35,000
Cabinet refacing and new countertops $9,000 – $22,000
Detached ADU (prefab, 1-bedroom) $180,000 – $320,000
Detached ADU (site-built, 1-bedroom) $250,000 – $350,000
Garage conversion ADU $95,000 – $160,000
Shed-to-ADU conversion (Tuff Shed pathway) $90,000 – $130,000
Primary bathroom remodel $18,000 – $38,000
Guest or hall bathroom remodel $10,000 – $22,000
Small bathroom or powder room $7,500 – $14,000

In Mentone, prices climb when septic capacity needs an engineered determination, when legacy electrical panels require replacement, or when unpermitted additions must be legalized or demolished before new work can start. We provide written line-item quotes and fixed pricing with no change orders, so the number we agree on is the number you pay.

Neighborhoods We Serve in Mentone

We cover the full 92359 ZIP code and the surrounding unincorporated county pockets. Mentone’s neighborhoods range from standard mid-century subdivisions to larger semi-rural parcels with acreage, and each brings different access, septic, and setback conditions that we factor into the estimate before we ever break ground. We typically respond to Mentone inquiries within one business day, with on-site consultations scheduled the same week.

  • Crafton Hills foothill parcels
  • Sylvan Park
  • Mentone Beach area
  • Amethyst Street corridor
  • Rural acreage east of Highway 38

Service Area – Cities Near Mentone

While Mentone is our focus for this page, our crews regularly work the surrounding cities and unincorporated communities. Homeowners in Redlands, CA and Yucaipa, CA call us for ADU builds and kitchen remodels, and we serve Highland, CA and Calimesa, CA for similar work. Each city has its own permit path and housing stock, so we tailor the approach accordingly.

Serving Mentone, CA — Our Local Coverage Area

We’re based in the Mentone 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 Mentone

Ready to get started? Free estimates · Free written quotes response in Mentone
Call (877) 658-7475

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 Mentone Customers Say

★★★★★ 4.8 from 4+ reviews

"Unit came out great and the tenant is happy. The timeline ran long, largely because of how slow the city was on plan check, though a couple of the delays were scheduling on their end."

— Arjun Singh

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

— Robert Gallagher

"Garage conversion to a one bedroom unit. He handled the plans, the city submittal, and every round of corrections. Took six months from first meeting to final inspection and he never once made the permit process my problem."

— Aisha Prince

How It Works in Mentone

Getting your adu handled is simple and fast.

1

Call or Request a Free Estimate

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2

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

3

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