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

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ADU Company in Rancho Cucamonga, CA

Kitchen remodeling in Rancho Cucamonga means working with 1970s-to-2000s stucco-on-frame homes, concrete tile roofs, and slab-on-grade foundations that almost always hide original plumbing and electrical runs. Sunburst ADU Builders has served Rancho Cucamonga since 2018, and we’re familiar with the panel tie-ins, sewer lateral depths, and HOA requirements that shape every job here. Whether you’re upgrading a dated kitchen in the 91737 hills or reconfiguring a galley layout in 91701, call (855) 676-6807 for a free written estimate.

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Why Rancho Cucamonga Homes Are Different

Rancho Cucamonga’s housing stock skews large and suburban: two- and three-car garages, stucco exteriors, concrete tile roofs, and foundations poured on the alluvial fan that runs from the Cucamonga foothills down toward Foothill Boulevard. The flat, well-drained terrain sounds forgiving until you open up a wall or trench a sewer line. Homes in the higher ZIPs (91737 and 91739) often sit on ground that needs extra grading and drainage engineering for any attached or detached addition. Homes in the flatter 91730 corridor have sewer laterals set at depths that routinely surprise out-of-area builders. If an ADU or kitchen expansion requires moving a drain line, the slope from the house to the municipal lateral has to be recalculated – not assumed.

The climate adds another layer. Hot, dry summers push HVAC sizing up, especially for west- and south-facing conversions that bake from mid-afternoon into evening. Santa Ana wind events bring debris-load and fire-hardening considerations for any exterior work, including kitchen venting, range hood ducting, and exterior wall penetrations. We plan for all of it before the first wall comes down.

Our Main Rancho Cucamonga Services

Two services dominate the calls we take from Rancho Cucamonga homeowners: full ADU construction and bathroom remodeling that often accompanies a new unit or upgrades the primary home. Here’s what each involves locally.

ADU Builders in Rancho Cucamonga

Rancho Cucamonga’s ADU market runs on large lots and existing garages. Many homes here were built with extra-wide two- and three-car garages that convert well, but each conversion still needs full utility tie-ins to the main panel, sewer lateral, and water line. Detached ADUs in 91737 and 91739 often require grading shifts, drainage plans, and HOA sign-off before framing begins. Sunburst works across prefab and custom platforms so the structure matches the site – not the other way around. See the full Rancho Cucamonga breakdown at ADU Builders in Rancho Cucamonga.

ADU Builders in Rancho Cucamonga

Bathroom Remodeling in Rancho Cucamonga

Many Rancho Cucamonga bathrooms still carry original plumbing from the 1970s and 80s: galvanized supply lines, cast-iron drains, and slab-floor routing that makes moving a toilet or shower a real engineering decision. We handle full-gut remodels, ADU bathroom build-outs, and aging-in-place conversions with the same local knowledge of sewer lateral depths and venting requirements. See Bathroom Remodeling in Rancho Cucamonga for pricing and process.

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

Kitchen Remodeling in Rancho Cucamonga

Kitchen remodeling in Rancho Cucamonga usually means opening up a closed-off 1980s or 1990s layout inside a stucco home with concrete tile overhead and a slab floor below. The work often starts with electrical: many of these kitchens run on a single 15- or 20-amp circuit that cannot support a modern cooktop, microwave, and refrigerator, let alone an island with outlets. We handle the panel upgrade, the appliance circuits, the ventilation ducting, and the finish work – all under one contract, so you’re not coordinating an electrician, a plumber, and a cabinet installer yourself. That’s the full-scope approach we bring to every Kitchen Remodeling project.

Full Kitchen Renovation

Signs you need it

Original cabinets with delaminating doors, a single lighting fixture in the ceiling, and a circuit breaker that trips when the toaster and microwave run together.

What it costs in Rancho Cucamonga

A full kitchen renovation in Rancho Cucamonga typically runs $35,000 to $85,000 depending on layout changes, cabinet grade, and whether the electrical panel needs upgrading.

How we do it

We verify the existing slab, map the current circuits and drain locations, upgrade the panel and rough plumbing as needed, then install cabinetry, counters, appliances, and finishes in sequence.

Kitchen Island Addition

Signs you need it

You have a wide, empty floor area but no prep surface or casual seating, and the current layout forces everyone to stand in a line against one wall.

What it costs in Rancho Cucamonga

Adding a kitchen island with electrical in Rancho Cucamonga typically runs $12,000 to $28,000 including slab cutting, circuit runs, cabinetry, and countertop fabrication.

How we do it

We locate the post-tension cables or rebar in the slab before cutting, route a new dedicated circuit from the panel, then set the island cabinets and anchor them to the slab.

Countertop and Cabinet Replacement

Signs you need it

The cabinet boxes are still square and solid, but the doors, drawer fronts, and laminate counters are worn, stained, or dated.

What it costs in Rancho Cucamonga

Replacing countertops and refacing or replacing cabinet doors in Rancho Cucamonga typically runs $8,000 to $22,000 depending on material and square footage.

How we do it

We template the existing boxes exactly, then install new doors, drawer fronts, and counters without moving walls, plumbing, or appliances.

What Kitchen Remodeling Costs in Rancho Cucamonga

Item Typical range in Rancho Cucamonga
Full kitchen renovation $35,000 – $85,000
Kitchen island addition $12,000 – $28,000
Countertop and cabinet replacement $8,000 – $22,000

Will my 1970s Rancho Cucamonga kitchen need a panel upgrade?

Most homes built before the 1990s in Rancho Cucamonga kitchens run on one or two shared circuits. If you’re adding an electric cooktop, a second oven, or an island with receptacles, a 200-amp panel upgrade is usually required. Call (855) 676-6807 for an exact assessment.

How long does a full kitchen remodel take in Rancho Cucamonga?

A full kitchen remodel in Rancho Cucamonga typically takes six to ten weeks from demolition to final inspection, depending on permit turnaround and whether slab work is involved. We sequence electrical rough-in and cabinet install back-to-back to avoid dead weeks.

Brands We Service in Rancho Cucamonga

We work across the leading ADU and prefab platforms – including Mighty Buildings, Boxabl, and Plant Prefab – so the build method matches your lot and budget rather than the other way around. Tuff Shed conversions are also in our wheelhouse for garage-adjacent units. See our brands for the full comparison.

Pricing for ADU Company in Rancho Cucamonga, CA

Service Typical range in Rancho Cucamonga
Full kitchen renovation $35,000 – $85,000
Kitchen island addition $12,000 – $28,000
Countertop and cabinet replacement $8,000 – $22,000
Prefab ADU (single-bedroom) $180,000 – $280,000
Custom detached ADU $250,000 – $400,000
Garage conversion ADU $120,000 – $200,000
Bathroom remodel (full gut) $18,000 – $35,000
Bathroom remodel (cosmetic) $8,000 – $15,000

Prices in Rancho Cucamonga climb when the job involves grading corrections on the higher ZIPs, panel upgrades from 100 to 200 amps, or sewer lateral replacement to meet current depth. Every quote is a written, line-item price before work starts – and we do not issue change orders unless you change the scope.

Neighborhoods We Serve in Rancho Cucamonga

Our crews work throughout Rancho Cucamonga, from the foothill lots north of the 210 in 91737 to the flatter 91701 and 91729 corridors south of Foothill Boulevard. We schedule estimates across the city within a few business days.

  • Alta Loma
  • Etiwanda
  • Terra Vista
  • Caryn
  • Banyan

Service Area – Cities Near Rancho Cucamonga

Sunburst ADU Builders also serves the surrounding Inland Empire communities, including Fontana, CA, Jurupa Valley, CA, Rialto, CA, and Bloomington, CA. If you’re just outside Rancho Cucamonga, call us – we’ll confirm coverage and schedule a site visit.

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 · Written quotes before work starts response in Rancho Cucamonga
Call (855) 676-6807

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

"He was honest that our lot had a slope problem that would add real cost, before we signed anything."

— Katie Parker

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

— Henry Kim

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

— Hector Torres

How It Works in Rancho Cucamonga

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 Rancho Cucamonga — 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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