ADU Company in Fontana, CA
Kitchen remodeling in Fontana means working with homes built for a different era: 1950s and 60s ranch tract layouts with small, closed-off kitchens on the west side of Sierra Avenue, and 1980s-2000s stucco subdivisions north and east where the bones are newer but the finishes are tired. The Cajon Pass wind corridor and 100°F-plus summers drive material choices here more than homeowners expect, from cabinet finishes that won’t warp to ventilation that actually moves hot air out. Westminster ADU Builders has served Fontana since 2016, handling full kitchen remodels alongside ADU construction and bathroom work. Call (833) 620-3521 to talk through your project.
Why Fontana Homes Are Different
Fontana’s housing stock splits along a line most locals know well: Sierra Avenue. West of it, in 92335, you’re looking at single-story post-war ranch tract homes from the 1950s through the early 70s. These houses have generous lot depth, attached garages, and kitchens that were built for a single cook with a stove, a sink, and not much else. East and north, in 92336 and 92337, the picture shifts to HOA-governed subdivisions from the 1980s through the 2000s, plus newer master-planned edges. Those homes have bigger footprints and more open floor plans, but the kitchens are often original to the build date, meaning tired oak cabinets, laminate counters, and fluorescent box lighting.
Then there’s the climate. Fontana sits at the foot of the Cajon Pass, and the afternoon winds funnel through that gap hard. Dust gets into everything. Summer temperatures routinely push past 100°F, and that heat does two things to a kitchen: it warps cheap cabinet doors and it makes a poorly ventilated kitchen unbearable by 4 p.m. We spec finishes and ventilation for Fontana’s specific conditions, not for a generic Southern California house. The wind corridor also means exterior wall penetrations, like range hood ducts and makeup air intakes, need proper sealing or you’ll feel the draft in winter and smell dust year-round.
For ADU work, which shares a kitchen component most of the time, Fontana’s lot geometry matters. The older ranch lots are wide and deep, so detached ADUs go in the rear yard off a side drive. That puts a second full kitchen on the property, and whether it’s for a rental tenant or an aging parent, the same climate realities apply. We’ll show you every realistic path, then build the one that fits your property and goals.
Our Main Fontana Services
Fontana homeowners call us most about two things: adding an ADU to a deep rear yard or a side setback, and updating a bathroom in a house where the original 1950s pink tile or the 1990s builder-grade fiberglass is still hanging on. Here’s what each looks like in Fontana.
ADU Builders in Fontana
Most Fontana ADU projects we handle are detached rear-yard units on those wide, deep ranch lots in 92335, or garage conversions and side-yard additions in the 92336 and 92337 subdivisions where HOA approval and CC&R review come first. The 2020 California ADU law simplified a lot, but Fontana still has its own permitting rhythm, and the older west-side lots often need sewer lateral replacement and electrical panel upgrades before a second dwelling can go in. We work in both prefab and traditional site-built methods, with hands-on familiarity across brands like Cover, Dvele, Mighty Buildings, and Boxabl. Learn more on our ADU Builders in Fontana page.
Bathroom Remodeling in Fontana
Fontana bathrooms run the same era split as the kitchens: west-side ranches have small 5-by-8-foot bathrooms with cast-iron tubs and original tile, while the newer subdivisions have larger footprints but fiberglass surrounds and dated vanities. The wind and heat matter here too: bathroom exhaust fans that run adequately in coastal cities struggle here, and we size them for Fontana’s summer conditions. Whether it’s a guest bath in the main house or the bathroom inside a new ADU, one team handles it from framing to finish. See our Bathroom Remodeling in Fontana page for specifics.
What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Kitchen Remodeling in Fontana
Kitchen remodeling in Fontana is really about correcting two decades of design that didn’t account for how this city actually lives. The west-side ranch kitchens are small and closed off, with a single window facing a side yard and no path to the dining room. The newer subdivision kitchens are larger but built with materials that Fontana’s heat and dust have already started to break down, warped cabinet doors and peeling laminate edges being the most common complaints. Most homeowners also want better ventilation, more counter space, and a layout that works for multiple cooks, which the original floor plans never intended. Whether the kitchen is in your main home or inside a new ADU, the scope and the standard are the same. We specialize in ADUs, plus the kitchens and bathrooms inside them, so this is not a side service for us. If you want to explore the full range of what a kitchen remodel can include, here’s our Kitchen Remodeling overview.
Cabinet and Countertop Replacement
Signs you need it
Cabinet doors that have warped or split at the seams, drawer slides that bind, and laminate counters that have delaminated at the edges are the telltale signs we see across Fontana kitchens.
What it costs in Fontana
Cabinet and countertop replacement in a typical Fontana kitchen runs $12,000 to $28,000 depending on whether you choose stock, semi-custom, or custom cabinetry.
How we do it
We measure the full kitchen, walk through cabinet brands and wood species with you, order to spec, remove the old boxes and counters, and install the new cabinets, countertops, hardware, and sink in one sequence.
Full Kitchen Gut and Reconfiguration
Signs you need it
When the current layout forces everyone into a single corner, the plumbing and electrical are original to the 1950s or 60s, and you’re working around problems instead of fixing them, the kitchen needs to be reconfigurated, not resurfaced.
What it costs in Fontana
A full kitchen gut with layout changes in Fontana starts at $35,000 and can reach $75,000 or more depending on whether walls move, gas lines relocate, and the electrical panel needs a service upgrade.
How we do it
We pull permits, demo to the studs, reframe for the new layout, rough in plumbing and electrical, close walls with drywall and paint, then install flooring, cabinets, counters, appliances, and finish with trim and lighting.
Kitchen Ventilation and Heat Management
Signs you need it
If your kitchen is uncomfortably hot by late afternoon in summer, grease settles on cabinets within weeks of cleaning, and the existing range hood either recirculates or vents nowhere useful, the ventilation needs work.
What it costs in Fontana
Adding a properly sized range hood with exterior ducting in Fontana runs $1,500 to $5,000 depending on the hood type, duct run length, and whether makeup air or a roof penetration is required.
How we do it
We locate the shortest exterior duct path, cut and seal the wall or roof penetration for Fontana’s wind and dust conditions, mount the hood at the correct height for your cooktop, and verify the airflow at the vent outlet.
What Kitchen Remodeling Costs in Fontana
| Item | Typical range in Fontana |
|---|---|
| Cabinet and countertop replacement | $12,000 – $28,000 |
| Full kitchen gut with layout changes | $35,000 – $75,000+ |
| Range hood installation with exterior ducting | $1,500 – $5,000 |
What pushes a Fontana kitchen remodel price up is almost always the hidden condition of the house: original 1950s wiring that needs a subpanel, cast-iron drain lines that have narrowed, or an electrical panel that was maxed out decades ago. Our written line-item quotes fix the price before work starts, so the number you approve is the number you pay.
How long does a kitchen remodel take in Fontana?
A cabinet and countertop replacement takes 2 to 4 weeks, while a full gut with layout changes runs 8 to 14 weeks depending on permit review timing with the City of Fontana and any electrical panel scope. We sequence the work so your kitchen is out of commission for the shortest practical window.
Will the price change once the work starts?
No. We write line-item quotes and hold the price unless you change the scope or we open a wall and find something that genuinely requires a code-mandated fix, in which case we document it, quote the delta, and wait for your approval before proceeding. Call (833) 620-3521 for an exact quote on your Fontana kitchen.
Brands We Service in Fontana
We work with a defined roster of prefab ADU brands, including Cover, Dvele, Mighty Buildings, and Boxabl, and we handle their kitchen and bath finish-out work in Fontana with parts and materials sourced from local Inland Empire suppliers. Turnaround on replacement parts and finish materials is typically 1 to 3 weeks depending on the brand and the item. Full details are on our brands page.
Pricing for ADU Company in Fontana, CA
| Service | Typical range in Fontana |
|---|---|
| Cabinet and countertop replacement | $12,000 – $28,000 |
| Full kitchen gut with layout changes | $35,000 – $75,000+ |
| Range hood installation with exterior ducting | $1,500 – $5,000 |
| Detached rear-yard ADU (site-built) | $250 – $350 per sq ft |
| Prefab ADU (factory-built module delivery) | $200 – $300 per sq ft |
| Garage conversion ADU | $150,000 – $200,000 |
| Bathroom remodel (standard full replacement) | $15,000 – $35,000 |
| Bathroom remodel (high-end custom) | $40,000 – $70,000+ |
Two things push Fontana prices above the Inland Empire baseline: the older west-side homes frequently need electrical service upgrades and sewer lateral replacement before a second dwelling or a serious kitchen remodel can pass inspection, and the HOA-governed subdivisions add architectural review time that forces longer project schedules. Either way, our line-item quotes are fixed before the first hammer swings, so the price doesn’t drift.
Neighborhoods We Serve in Fontana
We work across all four Fontana ZIP codes: 92334, 92335, 92336, and 92337. That covers the older ranch tract streets west of Sierra Avenue, the stucco-and-tile subdivisions through the center of the city, and the newer master-planned edges north toward the 210 and east toward the 15.
- Downtown Fontana and the historic 92335 core
- Heritage and Village neighborhoods
- Northgate and Citrus Heights area
- Southridge and Sierra Lakes communities
- Walnut Village and the newer 92336 developments
We schedule estimates across Fontana within one to two business days, depending on the week’s workload.
Service Area – Cities Near Fontana
Our service area extends beyond Fontana into the surrounding Inland Empire communities. Homeowners in Bloomington, CA and Rialto, CA call us for the same ADU, kitchen, and bathroom work, and we regularly take projects in Glen Avon, CA and Pedley, CA as well. The same team, the same pricing structure, and the same permitting familiarity apply across the whole area.
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
We prepare the plans and documentation your HOA needs, and we’ll walk the submission through with you, but the approval itself has to come from the HOA board or architectural committee. In 92336 and 92337, HOA review is often the longest single step in the process. We sequence the permit work so the city and the HOA run in parallel wherever possible.
For kitchen and bathroom remodels, we can typically start within 2 to 6 weeks after you approve the quote, depending on material lead times. For ADUs, plan on 3 to 6 months for design, permitting, and HOA review before construction begins, then 6 to 14 months on site depending on the scope. Call (833) 620-3521 to get a specific timeline for your property.
Yes. Every project requiring a permit gets one, pulled through the City of Fontana. We handle the plan submittal, respond to plan-check comments, schedule inspections, and close out the permit when the final inspection passes. That applies to ADUs, kitchen remodels, and bathroom remodels alike.
If you’re planning an ADU, kitchen remodel, or bathroom project in Fontana, start with a conversation. We’ll walk your property, talk honestly about what the lot and the house can support, and give you a written line-item quote that holds. Call (833) 620-3521 to schedule your free estimate.
What happens when you call
- 1A real person answersNo phone trees — talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Fontana Customers Say
"Sound insulation between the unit and the main house is better than I expected. You genuinely cannot hear the tenant."
— Farah Hassan"He gave us a realistic rental number for the finished unit rather than the optimistic one, and it's renting for about what he said."
— Erin Quinn"The kitchenette layout he suggested made better use of the space than the one on our original sketch."
— Lisa Hayes