ADU Company in Mentone — Plans, Permits & Build, One Fixed Price

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 comes with a specific set of conditions: mid-century ranch houses built before open-concept living existed, summer temperatures that push 100 degrees in July and August, and septic systems on many rural-residential lots that limit how far you can expand a footprint. We’re Buena Park ADU Builders, and we’ve served Mentone since 2016. Call us at (877) 265-7231 when you’re ready to talk through what your kitchen can become.

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Why Mentone Homes Are Different

Mentone’s housing stock skews older. Most homes were built between the 1950s and 1970s, and the layout reflects that: closed-off kitchens, narrow doorways, low ceilings, and electrical panels that were never sized for modern appliances. The lots, though, are often generous. That combination – dated interiors on large parcels – is why so many Mentone homeowners look at their kitchen and see wasted potential rather than a full teardown.

The climate matters too. Mentone sits at the base of the San Bernardino Mountains in a hot, semi-arid zone. Kitchen design here has to account for real cooling load. That means ventilation placement, window orientation, and finishes that hold up to heat and dry air without warping or fading. James Hardie fiber-cement exterior siding handles the outside; inside, we spec materials that won’t fail when the temperature spikes.

On the east side of town near the 38, hillside and canyon lots introduce grading and slope considerations that affect any structural change, including kitchens that bump out. Many properties also run on septic, which means a kitchen expansion that adds a sink or changes plumbing may trigger a septic capacity review through San Bernardino County. These aren’t dealbreakers. They’re just realities we plan around from the first site visit.

Our Main Mentone Services

Mentone homeowners call us most often for two projects: building a detached unit in the backyard and gutting an outdated bathroom. Both draw on the same local knowledge – septic, fire zone, older home stock – and both benefit from a contractor who already understands how Mentone parcels work.

ADU Builders in Mentone

Mentone’s hillside and canyon lots east of the 38 often mean the detached ADU pad has to be engineered around slopes, rock, and county grading requirements – unusual for a small San Bernardino County community where most lots were platted for single homes, not second units. We work across prefab brands like Boxabl and Plant Prefab as well as site-built construction, so the recommendation follows the lot conditions rather than the other way around. Fire-hazard review and septic-capacity questions are two things we address before plans ever reach building and safety. ADU Builders in Mentone have specific terrain challenges, and we’ve built for them.

ADU Builders in Mentone

Bathroom Remodeling in Mentone

Bathrooms in Mentone’s mid-century homes tend to be small, often five feet wide, with original cast-iron plumbing that has outlived its usefulness. The hot, dry climate means moisture control is less about mold and more about material expansion – which changes how we approach tile, grout, and waterproofing. For older homes on septic, any bathroom addition or significant drain change needs a septic evaluation before we commit to a floor plan. Bathroom Remodeling in Mentone requires a contractor who respects the age of the house without letting it limit the result.

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 usually means opening up a galley kitchen in a 1960s ranch house, or rebuilding a kitchen that was last updated in the 1980s with laminate counters and fluorescent soffits. The heat matters here: our summers demand ventilation and cooling planning that a kitchen designer in a coastal city never has to think about. Septic systems on many Mentone properties also shape what’s possible – moving a sink to an exterior wall may be straightforward, but adding a prep sink on an island sometimes isn’t. Our full Kitchen Remodeling process starts with the site realities before we ever talk cabinet colors.

Full Kitchen Gut and Rebuild

Signs you need it

Your kitchen walls close you off from the rest of the house, your cabinets are original to the home, and you’ve stopped hosting because the space doesn’t work.

What it costs in Mentone

A full kitchen gut and rebuild in Mentone typically runs $45,000 to $85,000 depending on finishes, structural changes, and whether we’re moving plumbing or gas lines.

How we do it

We start with a site walk to check slab condition, electrical capacity, and septic limitations, then demo, reframe for the new layout, run rough plumbing and electrical, and finish with custom or semi-custom cabinetry and countertop install.

Kitchen Expansion or Bump-Out

Signs you need it

Your kitchen has good bones but no floor space, and the lot has room to expand outward rather than rearrange inward.

What it costs in Mentone

A kitchen expansion or bump-out in Mentone typically falls between $35,000 and $75,000, with grading and foundation work on sloped lots pushing toward the higher end.

How we do it

We check setbacks and septic capacity first, then pour the new foundation, tie the roofline into the existing structure, and build out the expanded kitchen with the same finishes as the original space.

What Kitchen Remodeling Costs in Mentone

Item Typical range in Mentone
Full kitchen gut and rebuild $45,000 – $85,000
Kitchen expansion or bump-out $35,000 – $75,000
Cabinet refacing and countertop replacement $12,000 – $28,000

Prices in Mentone shift based on three things: whether the home is on septic, whether the lot slopes enough to require grading, and how far the kitchen has to move from its current plumbing and gas lines. Our written quotes are line-item fixed, and we don’t change the price once the job starts unless you change the scope.

How long does a kitchen remodel take in Mentone?

Most Mentone kitchen remodels run 6 to 10 weeks from demo to final walkthrough. Structural changes, septic review, or custom cabinetry can add time. We’ll give you a schedule before we start and update it weekly.

Will my kitchen remodel trigger a septic review?

If we’re moving plumbing or adding a fixture, yes – San Bernardino County will likely want to see septic capacity before approving the permit. We handle that review as part of the planning phase so it doesn’t stall construction. Call (877) 265-7231 for a free estimate.

Brands We Service in Mentone

We build with Mighty Buildings, Boxabl, and Plant Prefab systems across Mentone, and we spec Tuff Shed builds where a simpler, faster unit fits the budget. Parts and finishes are ordered to the specific site, which keeps turnaround tighter for rural-residential lots. See the full range at our brands.

Pricing for ADU Company in Mentone, CA

Service Typical range in Mentone
Prefab ADU (Boxabl or Plant Prefab, 400-600 sq ft) $120,000 – $220,000
Site-built detached ADU (600-1,000 sq ft) $180,000 – $350,000
Detached ADU with grading and slope work $200,000 – $400,000
Full kitchen gut and rebuild $45,000 – $85,000
Kitchen expansion or bump-out $35,000 – $75,000
Cabinet refacing and countertop replacement $12,000 – $28,000
Bathroom remodel (standard 5×8) $18,000 – $35,000
Bathroom remodel with layout change $25,000 – $50,000
Primary bathroom remodel $30,000 – $60,000

Sloped lots east of the 38 and septic capacity checks are the two biggest price drivers in Mentone – both add engineering and county review time. Every estimate we write is line-item fixed before the first day of work.

Neighborhoods We Serve in Mentone

We work across all of Mentone’s 92359 zip code, from the flatter lots near the center of town out to the hillside parcels and canyon properties along Highway 38. Most of our Mentone jobs are within 20 to 30 minutes of our team, which keeps site visits and material runs efficient even on the rural edges.

  • Downtown Mentone (near Mentone Blvd and the 38)
  • East Mentone hillside and canyon lots
  • Rural-residential parcels along Crafton and Wabash
  • Septic-heavy lots north of the railroad tracks
  • Mentone’s manufactured home communities

Service Area – Cities Near Mentone

Buena Park ADU Builders also serves homeowners in Redlands, CA, Yucaipa, CA, Highland, CA, and Calimesa, CA. Each of those cities has its own permitting culture and housing stock, so our approach adjusts accordingly – but the multi-brand ADU and kitchen-bath focus stays the same.

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 in-home estimates response in Mentone
Call (877) 265-7231

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

★★★★★ 5.0 from 4+ reviews

"He gave us a realistic rental number for the finished unit rather than the optimistic one, and it's renting for about what he said."

— Danika Prince

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

— Ramon Garcia

"Every invoice was tied to a completed milestone, so I always knew what I was paying for."

— Kevin Bennett

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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