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 reworking a mid-century ranch or a rural custom home that has to handle intense summer heat, hard water, and the occasional Santa Ana wind. Harvest ADU Builders has served Mentone since 2012, and we approach every kitchen here with the same question: how does this room function for a family that may soon add an ADU out back? The answer shapes everything from cabinet layout to venting. If you’re planning a kitchen that works harder, or a full ADU with a kitchen inside it, call us at (866) 538-0916.

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Why Mentone Homes Are Different

Mentone is unincorporated San Bernardino County, which means ADU and kitchen work follows county ordinances, not a city codebook. More than that, the housing stock runs older: single-family homes built in the 1960s and 1970s on generous lots, many of them still on septic systems and private wells or small mutual water companies. When we plan a kitchen remodel or an ADU here, the first thing we check is the septic leach field and the water service. You can have a perfect zoning envelope for a detached unit, and then discover the leach field sits exactly where the county wants the structure. That conflict, not the zoning code, is what stops most Mentone ADU projects before they start.

The climate adds another layer. Mentone sits at the base of the San Bernardino Mountains and gets real heat: triple-digit summer days are common, and Santa Ana winds push dry air through the East Valley in fall. A kitchen remodel here should account for extra ventilation and insulation, and an ADU needs ember-resistant materials where the parcel falls inside the county’s Fire Safe overlay. We size HVAC and shade planning around those realities rather than treating Mentone like a coastal suburb. The result is work that holds up when the thermometer spikes and the wind picks up.

Homeowners in Mentone often come to us after trying to sort through prefab brands, permit timelines, and build methods on their own. It is a fragmented market. Our job is to map it for you, whether that means matching you to the right prefab unit or pointing you toward a site-built or Tuff Shed conversion that fits your lot and your budget.

Our Main Mentone Services

Most Mentone homeowners reach out to us for one of two reasons: they want a detached ADU on a large lot, or they want to renovate a bathroom in an older home before the full ADU build begins. Here is how each works in Mentone specifically.

ADU Builders in Mentone

Mentone’s larger lots create real opportunity for detached ADUs, but the county’s septic, well, and fire-overlay rules shape every decision. We start by looking at where the leach field sits, what the water service can support, and whether the parcel falls in a wildland-urban interface zone. Then we match you to the right build method: a high-design prefab from Dvele or Mighty Buildings, a faster panelized option, a Tuff Shed conversion, or full site-built construction. From shell to move-in ready, we handle the kitchen and bathroom inside the unit too. Learn more on our ADU Builders in Mentone page.

ADU Builders in Mentone

Bathroom Remodeling in Mentone

Older Mentone homes frequently have bathrooms with original cast-iron plumbing, limited ventilation, and layouts that predate modern expectations. Hard water from private wells accelerates mineral buildup on fixtures and inside supply lines. We plan bathroom remodels around those realities: access to plumbing, proper exhaust in a hot climate, and finishes that stand up to hard water. When the bathroom is inside a new ADU, we coordinate it with the shell so there is one contractor, one schedule, and one point of responsibility. See the full scope on our Bathroom Remodeling in Mentone page.

Bathroom Remodeling in Mentone
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Kitchen Remodeling in Mentone

Kitchen remodeling in Mentone often means unwinding decades of deferred maintenance in a home built before modern appliances, while preparing the house for what comes next, whether that is an ADU for rental income or a multigenerational shift. The heat and hard water shape material choices: we lean toward finishes that do not warp in low humidity and fixtures that resist mineral scale. If you are also planning an ADU, we can design the main-house kitchen and the ADU kitchen together so both feel coherent and both stay within your budget. Our full Kitchen Remodeling approach applies here, adapted to Mentone’s specific constraints.

Cabinet and Countertop Replacement

Signs you need it

Doors that no longer close square, water-swollen particleboard under the sink, or counters that have cracked from decades of dry heat cycles all point to replacement.

What it costs in Mentone

In Mentone, a mid-range cabinet and countertop replacement typically runs $18,000 to $42,000 depending on linear footage, material, and whether we find hidden water damage behind the old boxes.

How we do it

We measure, order, and stage everything before demo; remove the old cabinets and counters; address any subfloor or drywall damage; then install new cabinetry, level and secure the countertop, and reconnect plumbing and appliances.

Kitchen Island Addition

Signs you need it

You have the floor space but no prep surface, or the kitchen turns into a bottleneck whenever more than one person cooks.

What it costs in Mentone

Adding a kitchen island in Mentone generally runs $6,000 to $15,000 when the project is structurally straightforward and does not require moving major plumbing or electrical service.

How we do it

We confirm the floor can carry the load, map electrical and plumbing constraints, build or place the island, run new circuits if needed, then finish with the countertop and any seating overhang.

What Kitchen Remodeling Costs in Mentone

Item Typical range in Mentone
Cabinet and countertop replacement $18,000 – $42,000
Kitchen island addition $6,000 – $15,000
Full kitchen remodel with layout change $35,000 – $85,000

What pushes a Mentone kitchen remodel higher is usually what is hiding inside the walls: old galvanized supply lines, a subpanel that cannot carry a new induction range, or structural work where a load-bearing wall has to move.

Can you remodel a kitchen while we live in the house?

Yes. We phase the work so you keep a functioning sink and a basic cooking zone as long as possible, and we contain dust with floor-to-ceiling plastic barriers and daily cleanup. Most Mentone homeowners stay in the house during the remodel.

Will my kitchen remodel help if I add an ADU later?

It can, especially if we plan the plumbing and electrical run now. A well-organized main-house kitchen with an accessible panel and clear utility paths makes the ADU connection simpler and cheaper when you are ready. Call (866) 538-0916 to talk through the sequence.

Brands We Service in Mentone

We build and finish ADUs from several manufacturers, and the one we recommend for a Mentone lot depends on site conditions, not a sales quota. Dvele and Mighty Buildings both offer high-performance shells that suit the county’s fire-hazard overlays, and we can pair either with in-house kitchen and bathroom finishing. See our brands for the full list of what we work with and why we carry multiple lines rather than one.

Pricing for ADU Company in Mentone, CA

Service Typical range in Mentone
Prefab ADU, full unit $180,000 – $420,000
Site-built ADU, full unit $240,000 – $550,000
Tuff Shed conversion $80,000 – $160,000
ADU kitchen, inside unit $22,000 – $55,000
ADU bathroom, inside unit $18,000 – $45,000
Kitchen remodel, cabinets and counters $18,000 – $42,000
Kitchen remodel, full with layout change $35,000 – $85,000
Bathroom remodel, full $15,000 – $38,000

Prices in Mentone rise when we have to solve the septic and water puzzle first: a new leach field, a well upgrade, or a fire-sprinkler requirement can add real cost before the first wall goes up. We quote a fixed, written price after we have looked at the site, and we do not come back with change orders because we missed something in the walkthrough.

Neighborhoods We Serve in Mentone

We cover all of Mentone’s 92359 ZIP code, from the flatter lots near Highway 38 to the hillside parcels closer to the mountain base. Here are some of the areas where we work most often:

  • Mentone’s old-town core near Mentone Boulevard and the railroad tracks
  • Parcels along Highway 38 heading up toward the mountains
  • Rural lots east of Crafton Avenue near the citrus groves
  • Lots backing up to the Mill Creek corridor
  • The unincorporated stretches between Mentone and Redlands

Most Mentone sites are within 20 minutes of our normal routing, so scheduling an estimate is usually a matter of a few days, not a few weeks.

Service Area – Cities Near Mentone

We also work regularly in the neighboring East Valley and San Bernardino County communities. Homeowners in Redlands, CA tend to ask about detached ADUs on smaller city lots, while Yucaipa, CA brings more larger-lot and septic-driven questions. In Highland, CA we see a mix of older ranch homes and newer construction, and Calimesa, CA keeps us busy with rural parcels and fire-zone requirements. The same team and the same fixed-price approach apply everywhere we work.

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 · Written quotes before work starts response in Mentone
Call (866) 538-0916

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

"The kitchenette layout he suggested made better use of the space than the one on our original sketch."

— Marco Reyes

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

— Kristen Fletcher

"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."

— Vikram Sharma

How It Works in Mentone

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1

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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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