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 usually means working inside a home built before modern ventilation and electrical codes caught up with how families actually cook. The older ranch-style and mid-century homes here run hot in the afternoon sun, and many were framed with layouts that trap heat right where the stove and refrigerator compete for space. Newport Beach ADU Builders has served Mentone since 2016, and we plan every kitchen around the canyon-adjacent heat, the older wiring, and the way these homes actually live. Call (844) 934-0236 and we’ll walk your kitchen with you before you spend a dollar.

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Why Mentone Homes Are Different

Mentone sits in unincorporated San Bernardino County, east of Redlands and below the Crafton Hills near the mouth of Mill Creek Canyon. That county jurisdiction matters more than most homeowners expect: ADU and remodel permits here run through county Fire Hazard Severity Zone and Wildland Urban Interface review, not the city of Redlands process a few miles west. The canyon-adjacent topography and dry brush mean fire-resistant details get written into the plans from day one, not added as an afterthought.

The housing stock skews older. Ranch-style and equestrian properties on oversized lots are common, with mid-century builds and newer custom homes mixed in. Many primary homes predate current insulation standards, and a meaningful share of the lots outside city sewer rely on septic systems. That last point stops a lot of projects before they start: the county requires an existing septic evaluation, and often an upgrade or replacement, before an ADU can be approved. Contractors who mostly work in Redlands sometimes miss this entirely. We don’t.

The climate is hotter than the Redlands lowlands, with strong afternoon sun and occasional Santa Ana winds. Kitchen and bath remodels here need real cooling capacity, smart window orientation, and materials that won’t warp or fade under direct inland Southern California exposure.

Our Main Mentone Services

Most Mentone homeowners call us about one of two things: adding a detached ADU on a large lot, or updating an aging kitchen or bathroom in a home that needs to work harder before the ADU even gets permitted. Here’s what each involves locally.

ADU Builders in Mentone

Adding an ADU in Mentone means navigating county WUI requirements, septic capacity checks, and oversized-lot setbacks that actually favor detached units. We match the build method to your lot and budget: a factory-built unit when speed matters, a panelized or custom build when fire-resistant design details need to be specific. We handle the county submittal, the septic coordination, and the construction under one contract. That’s the difference between a project that stalls and one that gets built. ADU Builders in Mentone is where you can see exactly how we approach these projects.

ADU Builders in Mentone

Bathroom Remodeling in Mentone

Older Mentone bathrooms tend to have failing tile beds, undersized exhaust ventilation, and cast-iron drain lines that have lived past their useful life. In a semi-rural home on septic, a bathroom remodel also needs to account for what the drain field can realistically handle each day. We rebuild these spaces with moisture-resistant assemblies, proper ventilation, and fixtures sized for real use. And because we also build ADUs, we can rough in a bathroom for a future unit while we’re already on the property. Bathroom Remodeling in Mentone covers the full scope.

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 usually about fixing what the original builder never planned for: afternoon heat loading, a single 20-amp circuit trying to run a microwave and an air fryer at once, and an exhaust hood that recirculates grease-laden air instead of venting it outside. The ranch and mid-century homes here were framed before modern appliance loads and indoor air quality standards existed, so a real remodel means opening walls, upgrading electrical service, and getting moisture and heat out of the room. We plan Mentone kitchens around the way the sun hits your specific lot, not a generic layout from a catalog. For a full picture of how we approach these projects, see Kitchen Remodeling.

Full Kitchen Overhaul

Signs you need it

The layout fights you every day, cabinets are delaminating, the electrical panel can’t handle a second appliance, and there’s no real exhaust ventilation.

What it costs in Mentone

A full kitchen overhaul in Mentone typically runs $35,000 to $65,000 depending on cabinet grade, countertop material, and how much electrical and plumbing needs to move.

How we do it

We open the walls to assess framing and rough electrical, rework the layout for flow and heat management, run new circuits and venting, then install cabinets, counters, appliances, and finishes under one contract.

Cabinet Replacement and Countertops

Signs you need it

Boxes are swollen from humidity, drawers stick, hinges are failing, and the countertop surface is scratched, stained, or warped from years of heat exposure.

What it costs in Mentone

Cabinet replacement and new countertops in Mentone usually fall between $12,000 and $25,000 depending on cabinet construction and the countertop material you choose.

How we do it

We measure the existing footprint, order cabinets matched to your layout, remove the old boxes carefully to preserve adjacent finishes, and install new cabinets and counters with shims and leveling that won’t sag under heavy stone.

What Kitchen Remodeling Costs in Mentone

Item Typical range in Mentone
Full kitchen overhaul $35,000 – $65,000
Cabinet replacement and countertops $12,000 – $25,000
Appliance package and venting install $6,000 – $14,000

Two things push kitchen remodel pricing up in Mentone: the need to bring older electrical panels and circuits up to current code, and the cost of properly venting a kitchen in a house that was never designed for it. We price this work upfront, in writing, before we start, so the number you sign is the number you pay.

How long does a kitchen remodel take in Mentone?

Most full kitchen remodels in Mentone run four to eight weeks depending on electrical panel upgrades, plumbing moves, and material lead times. We can give you a tighter schedule once we’ve seen the house. Call (844) 934-0236 for a site walk and an accurate timeline.

Will my Mentone kitchen remodel require a permit?

Yes. Kitchen remodels in San Bernardino County that move plumbing, alter electrical, or change structural walls require county permits and inspections. We pull them ourselves and the work is inspected before we call it done. Call (844) 934-0236 to talk through what your specific scope will need.

Brands We Service in Mentone

We work with the brands Mentone homeowners are already researching, including Boxabl, Plant Prefab, and Tuff Shed, and we install James Hardie fiber-cement siding on builds where fire resistance matters most. Having access to multiple manufacturers means we match the product to your lot and budget instead of pushing one brand. See our brands for the full roster and how we choose.

Pricing for ADU Company in Mentone, CA

Service Typical range in Mentone
Full kitchen overhaul $35,000 – $65,000
Cabinet replacement and countertops $12,000 – $25,000
Appliance package and venting install $6,000 – $14,000
Detached ADU (modular or prefab, 400 – 600 sq ft) $140,000 – $220,000
Detached ADU (custom site-built, 400 – 600 sq ft) $190,000 – $280,000
Garage conversion ADU (400 – 500 sq ft) $95,000 – $175,000
Bathroom remodel (full, 5×8 to 6×10) $18,000 – $35,000
Bathroom remodel (primary or larger) $30,000 – $55,000

Septic system evaluation and any required upgrade can be a five-figure line item on an ADU project here, and it’s often the single biggest surprise for homeowners who assumed the lot was ready for a second dwelling. We include that review in our initial assessment so the written quote reflects the real cost from the start.

Neighborhoods We Serve in Mentone

We work throughout the 92359 ZIP and the unincorporated county pockets around it, from the flatter lots near Mentone Boulevard and Highway 38 up toward the canyon-adjacent parcels where WUI review is a given. Our team is typically on site within a day or two for estimates, and we coordinate inspections with San Bernardino County’s building and fire review schedules.

  • Mentone Boulevard corridor
  • Lots near Crafton Hills College
  • Mill Creek Canyon approach
  • Equestrian parcels east of Redlands
  • Canyon-adjacent WUI properties

Service Area – Cities Near Mentone

Newport Beach ADU Builders serves Mentone and the surrounding San Bernardino County communities, including Redlands, CA, Yucaipa, CA, Highland, CA, and Calimesa, CA. If you’re in one of these nearby cities and planning an ADU, kitchen remodel, or bathroom update, we’ll bring the same county-permit knowledge and septic awareness to your project.

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 (844) 934-0236

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."

— Heather Ackerman

"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."

— Diego Castillo

"Sound insulation between the unit and the main house is better than I expected. You genuinely cannot hear the tenant."

— Malik Nash

How It Works in Mentone

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 Mentone — 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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