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

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ADU Company in Rancho Cucamonga, CA

Kitchen remodeling in Rancho Cucamonga means working with homes built mostly between 1985 and 2005, where the original kitchens have 30 to 40 years of daily use behind them. The big difference from coastal work is heat: an Inland Empire kitchen needs ventilation and cooling capacity that handles 100-degree summer days, not just aesthetics. Home Base ADU Builders has served Rancho Cucamonga since 2016, and we handle the full kitchen remodel plus ADU construction and bathroom work under one contract. Call (866) 403-9834 for a free estimate.

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Why Rancho Cucamonga Homes Are Different

Rancho Cucamonga is really two housing markets, and they demand different approaches. The flat south side, built mostly from the 1980s through the early 2000s in ZIPs 91701 and 91730, is production subdivision stock: attached two-car garages, compact backyards, and floor plans repeated block after block. Those homes are where garage conversions and small detached ADUs on flat pads make the most sense. The north side, 91737 and 91739, climbs into the foothills below Cucamonga Peak. Lots there slope, drainage runs downhill toward the flat city, and the soil is harder to work. A detached ADU on a hillside lot is a grading and retaining-wall project before it is a building project. The wind off the Cajon Pass is also a real factor: afternoons can gust hard enough that material deliveries get rescheduled and exterior work has to be planned around it. And the heat is not cosmetic. Kitchens and ADUs here need real cooling loads, decent insulation, and exterior materials that hold up to direct sun for years. We use James Hardie fiber-cement for exterior finishes for exactly that reason.

Our Main Rancho Cucamonga Services

Rancho Cucamonga homeowners call us most often about two projects: building an ADU on a lot that may or may not be flat, and remodeling a bathroom in a house that is two or three decades old. Both are on their own pages here.

ADU Builders in Rancho Cucamonga

ADU work in Rancho Cucamonga splits along the same line as the city itself. In 91701 and 91730, most clients are converting garages or building compact detached units on flat pads, often for aging parents or adult children. In 91737 and 91739, the job is different: sloped lots, view corridors, retaining walls, and drainage that has to be engineered so runoff does not end up in the neighbor’s yard. We work across the full range, from Tuff Shed conversions to architect-designed prefabs from brands like Abodu and Cover. ADU Builders in Rancho Cucamonga.

ADU Builders in Rancho Cucamonga

Bathroom Remodeling in Rancho Cucamonga

Bathrooms in 1980s and 1990s Rancho Cucamonga homes were built to a standard that has not aged well: fiberglass surrounds, single vanities, exhausted vent fans, and layouts that waste space. Remodeling here usually means gutting to the studs, moving supply lines and drain stacks to fit a real shower or a double vanity, and adding ventilation that handles the inland heat without turning the room into a sauna. Bathroom Remodeling in Rancho Cucamonga.

Bathroom Remodeling in Rancho Cucamonga
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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 Rancho Cucamonga

Most kitchens in Rancho Cucamonga were built between 1985 and 2005, which means cabinets with sagging shelves, laminate counters, fluorescent lighting, and a layout that was designed when one person cooked and no one expected an island. The Inland Empire heat also shows up inside: underpowered range hoods and no cooling in the kitchen make August cooking miserable, and we see it on nearly every walkthrough south of the foothills. For homeowners weighing whether to remodel the kitchen or invest in an ADU, the two projects often connect: a kitchen renovation is the most common interior upgrade paired with a backyard unit. Read more about how we approach the trade on our main Kitchen Remodeling page, then call us for a walkthrough.

Full Kitchen Gut and Rebuild

Signs you need it

Cabinets pull away from the wall, the layout blocks two people from working at once, and the original 1980s plumbing and wiring are still in the walls.

What it costs in Rancho Cucamonga

A full kitchen gut and rebuild in Rancho Cucamonga typically runs $45,000 to $75,000 depending on square footage, cabinet grade, and whether load-bearing walls come out.

How we do it

We demo to the studs, rough in new plumbing and electrical, hang and finish drywall, set cabinets and counters, install flooring, backsplash, lighting, and appliances, then paint and trim.

Cabinet Refacing and Countertop Replacement

Signs you need it

The cabinet boxes are solid but the doors are worn, the finish is dated, and the counters are laminate with burns and seams that catch crumbs.

What it costs in Rancho Cucamonga

Cabinet refacing with new counters in Rancho Cucamonga usually lands between $12,000 and $25,000, with stone counters pushing the number up.

How we do it

We build new doors and drawer fronts, veneer the boxes, replace hinges and slides, then template and install the new counters and backsplash.

What Kitchen Remodeling Costs in Rancho Cucamonga

Item Typical range in Rancho Cucamonga
Full kitchen gut and rebuild $45,000 – $75,000
Cabinet refacing and countertop replacement $12,000 – $25,000
Kitchen island addition $6,000 – $14,000

How long does a kitchen remodel take in Rancho Cucamonga?

A full gut and rebuild typically runs six to ten weeks from demo to final walkthrough. Cabinet refacing and counter work is faster, usually two to three weeks, since the boxes stay in place.

Will the kitchen remodel price change once work starts?

No, not unless you add scope. We write fixed-price, line-item quotes before we start, and we walk the site first so surprises like hidden plumbing or termite sill damage come out in the walkthrough, not in a change order. Call (866) 403-9834 for a quote.

Brands We Service in Rancho Cucamonga

We build across the ADU spectrum in Rancho Cucamonga: Plant Prefab and Abodu for turnkey, factory-built detached units; Tuff Shed for budget-driven conversions; and James Hardie fiber-cement for exterior cladding across builds. See our brands for the full comparison of what each one does well.

Pricing for ADU Company in Rancho Cucamonga, CA

Service Typical range in Rancho Cucamonga
Full kitchen gut and rebuild $45,000 – $75,000
Cabinet refacing and countertop replacement $12,000 – $25,000
Kitchen island addition $6,000 – $14,000
Detached ADU (garage conversion) $120,000 – $220,000
Detached ADU (new build, flat lot) $180,000 – $350,000
Detached ADU (hillside, pier foundation) $250,000 – $450,000+
Bathroom remodel (mid-range) $18,000 – $35,000
Bathroom remodel (high-end, custom tile) $40,000 – $65,000+

Two things push prices up in Rancho Cucamonga more than anywhere nearby: the hillside ZIPs of 91737 and 91739 add grading, retaining, and pier-foundation costs; and the 1980s-1990s homes on the flat side often hide deferred plumbing, electrical, and termite work that surfaces once walls open. Our quotes are fixed and line-itemed, so the number we give after the walkthrough is the number you pay.

Neighborhoods We Serve in Rancho Cucamonga

We work all four Rancho Cucamonga ZIPs and the neighborhoods within them.

  • Alta Loma (91737)
  • Etiwanda (91739)
  • North Rancho (91701)
  • South Rancho (91730)
  • Victoria (91739)

Response time across the city is usually one to two business days for a callback and a scheduled walkthrough, with foothill properties sometimes needing a little longer if drone footage or a grading check is required.

Service Area – Cities Near Rancho Cucamonga

Home Base ADU Builders also serves the small foothill community of San Antonio Heights, CA just above the city line, plus Upland, CA, Ontario, CA, and Fontana, CA. The flat-lot work in Ontario and Fontana is different from hillside Rancho Cucamonga builds, but the permit processes and climate are familiar territory.

Serving Rancho Cucamonga, CA — Our Local Coverage Area

We’re based in the Rancho Cucamonga 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 Rancho Cucamonga

Ready to get started? Free estimates · Free written quotes response in Rancho Cucamonga
Call (866) 403-9834

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 Rancho Cucamonga 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."

— Robert Hayes

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

— Colleen Pruitt

"Knew the local setback and parking rules cold, which saved us from designing something that would never have been approved."

— Priya Mehta

How It Works in Rancho Cucamonga

Getting your adu handled is simple and fast.

1

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2

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

3

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We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

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