ADU Company in Rialto — One Fixed Price, Permits Handled

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 Rialto, CA

Kitchen remodeling in Rialto usually means working inside a 1950s-to-1980s single-story home where the original footprint was never designed for how families live now. We see closed-off galley kitchens, load-bearing walls where homeowners want an island, and electrical panels that were full two remodels ago. Fullerton ADU Builders handles that work as a specialist, and we also build ADUs and remodel bathrooms so one contractor can carry the whole property. Call (877) 801-4497 to talk through your street and your lot.

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Why Rialto Homes Are Different

Rialto’s housing stock is predominantly single-family detached homes built between the 1950s and 1980s, and that age shapes every kitchen and ADU job we take on. The original kitchen in a 1960s Rialto tract home was built around a 30-inch range, a single sink wall, and maybe one overhead light. Nobody planned for ventilation over a slide-in range, a dishwasher, a microwave drawer, or the kind of counter-depth refrigerator people buy today. The electrical service on many of these homes is 100 amps, which means a kitchen remodel that adds a double wall oven, induction cooktop, and dedicated circuits for small appliances typically requires a panel upgrade before the first cabinet comes out.

Rialto’s climate adds a second layer. Hot, dry summers that routinely exceed 100°F mean a kitchen that traps heat turns the whole house uncomfortable by 4 p.m. We pay close attention to venting, range hood CFM, and window placement so the room works in August, not just in a catalog photo. Homes in the 92376 and 92377 ZIP codes also vary block by block: some neighborhoods off Foothill Boulevard have detached garages set back far enough for a clean ADU conversion, while others have tight side yards that push an ADU toward the rear lot line. We match the unit to the lot, not the other way around.

Our Main Rialto Services

Rialto homeowners call us most about two projects: adding an ADU to a large lot, and remodeling a bathroom in a home where the original tile and plumbing are four decades old. Each has its own dedicated page below.

ADU Builders in Rialto

Rialto’s older single-story tract homes on generous lots make the city one of the more straightforward places in the Inland Empire to add a detached ADU. The most common projects are backyard casitas for aging parents or adult children, and garage conversions where the existing structure is sound enough to reuse. What surprises many homeowners is that a 1960s detached garage often has an undersized slab and wiring that will not pass current code, which turns a simple conversion into a full rebuild. We are brand-agnostic across seven prefab manufacturers and also build site-built units, so the recommendation follows your lot and budget. See ADU Builders in Rialto for the full scope.

ADU Builders in Rialto

Bathroom Remodeling in Rialto

Bathrooms in Rialto homes built before 1980 were often 5 feet by 8 feet with a single vanity, a tub-shower combo, and tile set on drywall or green board. We regularly open those walls to find water damage behind the tile and cast-iron drain lines that are past their service life. A bathroom remodel here usually includes replacing the tub or shower pan, updating the valve and supply lines, adding exhaust ventilation that moves real air, and correcting any subfloor rot before new tile goes down. The work pairs naturally with an ADU project, since one contractor can sequence both. Read Bathroom Remodeling in Rialto for local details and pricing.

Bathroom Remodeling in Rialto
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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 Rialto

Kitchen remodeling in Rialto is the highest-impact upgrade a homeowner can make on these 1950s-to-1980s tract homes, and it is also the project most likely to uncover hidden conditions behind the walls. Homes in the 92376 and 92377 ZIP codes were built when kitchens were closed off from living space, so most jobs start with removing a load-bearing wall, relocating plumbing, or upgrading a 100-amp panel. The heat is the other driver: a Rialto kitchen without proper ventilation and insulation becomes unusable by late afternoon in summer. We are a specialist, not a generalist, and Kitchen Remodeling is one of our three core trades alongside ADUs and bathrooms.

Full Kitchen Renovation

Signs you need it

The layout no longer works, the cabinets are failing at the hinges or water-damaged at the sink base, and the electrical panel cannot support modern appliances.

What it costs in Rialto

A full kitchen renovation in Rialto typically falls between $19,000 and $76,000 depending on square footage, structural work, and appliance level.

How we do it

We confirm the scope with a written line-item estimate, order cabinets and fixtures, complete any structural and rough-in work, then finish with flooring, counters, tile, and appliance installation – permits pulled and inspections passed.

Cabinet Refacing and Countertops

Signs you need it

The cabinet boxes are solid but the doors are dated, or the countertop is chipped, stained, or delaminating while the layout still works for how you cook.

What it costs in Rialto

Refacing in Rialto runs from $5,000 to $28,000, and a quality quartz or granite countertop replacement adds about $3,800 to $5,000 for a typical kitchen footprint.

How we do it

We measure the existing boxes, order new doors and drawer fronts, template the counters after the cabinets are set, and install with new hardware and sink plumbing in one sequence.

What Kitchen Remodeling Costs in Rialto

Item Typical range in Rialto
Full kitchen renovation $19,000 – $76,000
Cabinet refacing $5,000 – $28,000
Countertop replacement $3,800 – $5,000

Will the price change once work starts?

No, not without your written approval. We use fixed pricing with no change orders, and any condition we uncover – like rotted subfloor or a failed drain line – gets documented and priced before we proceed. Call (877) 801-4497 for a detailed estimate.

How long does a kitchen remodel take in Rialto?

A typical full kitchen in Rialto takes eight to twelve weeks from demolition to final inspection, depending on structural scope and permit review times with the city. If you are also adding an ADU, we sequence the two projects to reduce total downtime.

Brands We Service in Rialto

We specify and work with James Hardie fiber cement exteriors for ADUs, and our prefab knowledge covers Abodu, Cover, and Dvele among seven manufacturers. That matters in Rialto because the summer heat and dry conditions reward materials that hold up without constant maintenance. See our brands for details on each line.

Pricing for ADU Company in Rialto, CA

Service Typical range in Rialto
Full kitchen renovation $19,000 – $76,000
Cabinet refacing $5,000 – $28,000
Countertop replacement $3,800 – $5,000
Bathroom remodel (entry scope) $5,200 – $7,950
Bathroom remodel (mid-range) $8,900 – $16,200
Bathroom remodel (full custom) $19,000 – $42,000
Bathtub or shower conversion $2,100 – $7,250
Garage conversion ADU $68,000 – $126,000
Detached ADU (site-built) $175,000 – $350,000+

Two things push Rialto prices above the base range: panel upgrades on older homes, and slab or foundation corrections on garage conversions where the 1960s concrete was never engineered for living space. You will get a fixed, line-item quote before we start, and that number does not move unless you change the scope.

Neighborhoods We Serve in Rialto

We work across both Rialto ZIP codes, including the older neighborhoods off Foothill Boulevard where detached garages and large backyards make ADUs practical, and the newer subdivisions where kitchen remodels are the more common first project. Every estimate starts with a site visit, not a phone guess.

  • Neighborhoods off Foothill Boulevard
  • Areas around Rialto High School
  • Communities near the 210 Freeway corridor
  • Blocks around Riverside Avenue
  • 92876 and 92377 ZIP code zones

We schedule site visits across Rialto within a few business days; the exact day depends on how many visits are already booked that week, not on which part of town you live in.

Service Area – Cities Near Rialto

Rialto sits between Colton, Fontana, and San Bernardino, and we draw a lot of work from the smaller unincorporated pockets nearby. Homeowners in Bloomington, CA and Muscoy, CA often have the same 1950s-to-1980s single-family stock and large lots, while Fontana, CA and San Bernardino, CA add newer construction and different permit dynamics into the mix. We serve all of these from the same estimating and project management team.

Serving Rialto, CA — Our Local Coverage Area

We’re based in the Rialto 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 Rialto

Ready to get started? Free estimates · Written quotes before work starts response in Rialto
Call (877) 801-4497

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 Rialto 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."

— Greg Reed

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

— Erin Ziegler

"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."

— Tim Padgett

How It Works in Rialto

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 Rialto — 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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