ADU Company in Fontana — 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 Fontana, CA

Kitchen remodeling in Fontana means working with 1950s – 1970s ranch homes that have original layouts never designed for modern cooking, plus newer two-story builds in the northern tracts where dated builder-grade finishes are ready for replacement. The intense Inland Empire heat and Santa Ana winds shape material choices here more than in coastal cities, and older 92335 homes often need panel and venting upgrades before cabinetry even enters the conversation. Harvest ADU Builders has served Fontana since 2012, and our kitchen work flows from the same ADU-first specialization that drives everything we do. Call (866) 538-0916 to talk through your kitchen.

Call (866) 538-0916

Why Fontana Homes Are Different

Fontana’s housing stock splits into two distinct realities, and each one changes how a kitchen remodel should be approached. The older southern core, concentrated in 92335, holds one-story tract homes from the 1950s through the 1970s. These houses sit on wide lots with detached garages at the end of long driveways, and their kitchens are typically compact, boxed-in by load-bearing walls, and wired for an era when a single countertop appliance was the norm. Panel capacity, venting routes, and plumbing access all need evaluation before design work starts. The northern ZIP codes, 92336 and 92337, feature newer subdivisions where kitchens are larger but often carry cheap builder cabinetry and laminate counters that have not aged well.

The climate adds another layer. Summer temperatures routinely climb past 100 degrees, and Santa Ana wind events push dust and debris against exteriors. In a kitchen, that means ventilation choices matter, durable surfaces hold up better than soft ones, and any window or door replacement needs to be sealed with the heat and wind in mind. Fontana homeowners also lean heavily toward rental income and multigenerational living as their motivators, so kitchens are often designed for heavy daily use rather than occasional entertaining. That changes layout decisions, storage planning, and material durability expectations in ways a coastal designer rarely accounts for.

Our role as an ADU company shapes how we approach Fontana kitchens. When we build a detached ADU in 92335, the kitchen inside it gets designed and installed by the same team that handles the foundation and framing. When we convert a garage in the older tracts, the kitchen footprint has to work within an existing shell with limited wall space. That experience carries directly into kitchen remodels in the main house. We understand how kitchens function inside Fontana’s specific housing types because we already build them there. For a deeper look at our ADU work, see ADU Builders in Fontana.

Our Main Fontana Services

Most Fontana homeowners reach out to us for one of two reasons: they want an ADU on their property, or they want to remodel a bathroom. Both jobs intersect more often than people expect, and both benefit from a builder who understands Fontana’s specific lot patterns, housing eras, and climate.

ADU Builders in Fontana

ADU construction in Fontana means working with the detached garages and wide rear yards that define the older 92335 tracts, or navigating the tighter setback and lot-coverage limits of the northern subdivisions. We match each homeowner to the right build method rather than forcing a single product, which matters in a city where a Tuff Shed conversion might be the smartest path on one lot while a Plant Prefab unit makes more sense three blocks away. Single-contractor delivery means the kitchen and bathroom inside your ADU get finished by our in-house team, not subcontracted out. ADU Builders in Fontana

ADU Builders in Fontana

Bathroom Remodeling in Fontana

Fontana bathrooms in the older southern homes are small, often with original cast iron plumbing and limited venting. In the northern subdivisions, the bathrooms are larger but typically carry builder-grade fixtures that fail after 15 to 20 years. Our bathroom remodeling work draws on the same in-house team that finishes ADU interiors, so the tile, fixtures, and waterproofing follow the same standards we apply to new construction. Whether the bathroom sits in a 1960s ranch house or a 2000s two-story, we plan around Fontana’s heat and wind conditions for ventilation and sealing. Bathroom Remodeling in Fontana

Bathroom Remodeling in Fontana
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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 Fontana

Kitchen remodeling in Fontana usually comes down to one of two situations: an older southern home where the original kitchen layout no longer functions, or a northern home where builder-grade materials have reached the end of their useful life. The heat and wind in the Inland Empire also mean ventilation, sealing, and durable surfaces carry more weight here than they would near the coast. Our kitchen work is part of the same full-spectrum approach we bring to ADUs, which means we handle everything from the ADU shell to the interior kitchen and bathroom finishes under one roof. If you want a deeper look at our broader kitchen capabilities, visit our Kitchen Remodeling page.

Cabinet Replacement and Layout Changes

Signs you need it

Cabinet doors sag or fail to close, drawer slides bind, layouts block flow between the sink, range, and refrigerator, and storage space no longer matches how the household actually cooks.

What it costs in Fontana

Cabinet replacement and layout changes in Fontana typically range from $18,000 to $45,000 depending on cabinet quality, layout complexity, and whether any walls need modification.

How we do it

We measure the existing footprint, map the new layout around how the kitchen gets used daily, order cabinetry sized to Fontana’s specific home eras, and install with attention to how the space handles heat and daily wear.

Countertop and Surface Upgrades

Signs you need it

Laminates peel or chip, grout lines stain and crack, surfaces show deep scratches or heat damage, and the kitchen no longer holds up to daily cooking demands.

What it costs in Fontana

Countertop and surface upgrades in Fontana typically run $3,000 to $12,000 depending on the material, the number of linear feet, and the condition of the existing base cabinets.

How we do it

We assess the current substrate, recommend materials that handle Fontana’s heat and heavy use, template the new surfaces precisely, and install with sealed edges and proper support.

Full Kitchen Remodel

Signs you need it

The kitchen no longer works for the household’s size or cooking habits, and the accumulated issues with layout, cabinetry, surfaces, lighting, and ventilation justify a complete rebuild.

What it costs in Fontana

A full kitchen remodel in Fontana typically falls between $35,000 and $85,000 depending on the size of the kitchen, the material selections, and how much structural or systems work the home requires.

How we do it

We start with the existing conditions in the home, plan the new layout around traffic flow and cooking patterns, address any panel or venting deficiencies, then install cabinetry, countertops, fixtures, lighting, and finishes as a coordinated single-contractor job.

What Kitchen Remodeling Costs in Fontana

Item Typical range in Fontana
Cabinet replacement and layout changes $18,000 – $45,000
Countertop and surface upgrades $3,000 – $12,000
Full kitchen remodel $35,000 – $85,000

How long does a kitchen remodel take in Fontana?

Most Fontana kitchen remodels take four to eight weeks from demolition to final walkthrough, with cabinet lead times and any panel or venting work being the variables that shift the schedule most.

Will the price change once the work starts?

Our quotes are fixed, written, and line-itemed before we start, and we do not use change orders unless there is a hidden condition you ask us to address. Call (866) 538-0916 for a free estimate.

Brands We Service in Fontana

We work across a range of ADU and building brands so Fontana homeowners get matched to the right solution rather than the one a single-brand dealer pushes. Boxabl and Plant Prefab both have strong applications in this market, and we finish exteriors with James Hardie materials for durability against Fontana’s heat and wind. See our brands for the full roster.

Pricing for ADU Company in Fontana, CA

Service Typical range in Fontana
Kitchen remodel – cabinet replacement and layout changes $18,000 – $45,000
Kitchen remodel – countertop and surface upgrades $3,000 – $12,000
Kitchen remodel – full remodel $35,000 – $85,000
Bathroom remodel – full bathroom $15,000 – $40,000
ADU – prefab ADU (permitted and installed) $80,000 – $180,000
ADU – Tuff Shed conversion (finished) $60,000 – $120,000
ADU – garage conversion $50,000 – $110,000
ADU – site-built ADU $150,000 – $300,000

Prices in Fontana push upward when an older home needs panel upgrades, when the lot triggers setback or coverage reviews that require design revisions, or when material selections move into premium tiers. Every quote we give is fixed, written, and line-itemed before any work begins, with no change orders for hidden surprises.

Neighborhoods We Serve in Fontana

We work throughout Fontana, and the neighborhoods below represent the range of housing eras and lot patterns we regularly see. Response times across the city are typically one to two business days for estimate scheduling, and we plan site visits around the older southern tracts and the newer northern subdivisions differently because the lots and homes are not the same.

  • Downtown and the older 92335 core, including the detached-garage ranch tracts
  • North Fontana subdivisions in 92336 and 92337
  • Southridge and the residential pockets along Sierra Avenue
  • The neighborhoods around Fontana High School and the 92334 ZIP boundary
  • West Fontana along the I-10 corridor

Service Area – Cities Near Fontana

Our work extends beyond Fontana into the surrounding Inland Empire communities where the housing stock and ADU opportunities follow similar patterns. We serve Bloomington, CA, Rialto, CA, Glen Avon, CA, and Pedley, CA. Each of those cities shares Fontana’s climate realities and many of the same housing era challenges, though the specific lot patterns and permit processes vary.

Serving Fontana, CA — Our Local Coverage Area

We’re based in the Fontana 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 Fontana

Ready to get started? Free estimates · Written quotes before work starts response in Fontana
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 Fontana 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."

— Vikram Sharma

"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."

— Heather Rhodes

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

— Marco Reyes

How It Works in Fontana

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 Fontana — 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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