ADU Company in Fontana, CA
Kitchen remodeling in Fontana usually means working inside a 1960s or 1970s stucco ranch with an original layout that no longer fits how people actually live. We handle the full scope: opening walls, relocating plumbing, upgrading electrical for modern appliances, and finishing with materials that hold up to Inland Empire heat. If you’re weighing an ADU and a kitchen update, one contractor can sequence both so inspections and subcontractors don’t collide. Call (833) 863-7015 to talk through your project.
Why Fontana Homes Are Different
Fontana’s housing stock skews heavily toward post-WWII ranch-style homes and 1960s-to-1980s stucco tract builds. These houses sit on generous lots with wide side yards and long driveways, which sounds ideal for construction until you open the walls. Most of the original homes in the 92335 and 92336 corridors still run on 60-amp electrical panels, and the plumbing is often a single-slab configuration that was never designed to support a second dwelling or a modern kitchen with multiple high-draw appliances.
The climate adds another layer. Fontana regularly sees 100°F-plus stretches through summer, and Santa Ana winds in the fall put real stress on building envelopes. Any kitchen remodel or ADU build here needs insulation and cooling specified for those conditions, not for coastal averages. We also see older neighborhoods in 92335 with alley access and long side-yard driveways, which changes how we stage materials and where we can place a detached unit without blocking the street. Every lot in Fontana is its own feasibility puzzle, and the permit office treats it that way too.
Our Main Fontana Services
Most Fontana homeowners call us about one of two things: adding an ADU to a lot that can support one, or fixing a bathroom that has outlived its original 1970s plumbing. Both are covered below.
ADU Builders in Fontana
Fontana’s stock of 1950s-to-1970s single-story tract homes on large lots makes it one of the better Inland Empire cities for detached ADUs, but the strict rules on setbacks, rear-yard coverage, and matching the existing home’s footprint mean every build requires a lot-by-lot plan. We work across seven prefab brands so the recommendation fits your lot and budget, not a single manufacturer’s inventory. Older 92335 properties often need a panel upgrade and utility re-trenching before the first inspection. ADU Builders in Fontana handles that entire sequence.
Bathroom Remodeling in Fontana
Fontana bathrooms from the 1960s and 1970s were built small, with cast-iron drain lines and single-slab plumbing that has had sixty years to corrode. A remodel here often means opening the slab to replace the drain, re-venting to current code, and waterproofing for a room that now sees daily use. We sequence the plumbing and tile work so the bathroom is out of service for the shortest realistic window. Bathroom Remodeling in Fontana covers the full scope, from drain replacement to finish.
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
Most Fontana kitchens we open up were framed in the 1960s or 1970s, with a closed-off layout, a single overhead light, and one wall of cabinets doing all the work. The job here is usually not cosmetic. It’s relocating plumbing to where the family actually cooks, adding circuits so the microwave and refrigerator stop tripping the same breaker, and replacing single-slab drain lines while the floor is already open. Summers regularly push past 100°F in Fontana, so ventilation and appliance heat output matter more here than in coastal markets. A kitchen remodel in Fontana is a structural and mechanical project, not a cabinet swap. We plan it that way from the first walkthrough, and our Kitchen Remodeling scope covers the full sequence from permit drawings to final inspection.
Full Kitchen Renovation
Signs you need it
Your kitchen still has its original 60-amp circuit, the layout walls off the cook from the family, and the cabinet boxes have swollen from decades of Inland Empire heat cycling.
What it costs in Fontana
A full kitchen renovation in Fontana typically runs $35,000 – $70,000 depending on layout changes, slab plumbing work, and finish level.
How we do it
We open the walls, relocate plumbing and electrical to the new layout, replace any single-slab drains while the floor is exposed, then install cabinets, counters, fixtures, and appliances before final inspection.
Kitchen Cabinet and Countertop Replacement
Signs you need it
Your cabinet doors no longer close square, the melamine faces have delaminated, or the layout wastes a wall of storage while the counter is too shallow to work on.
What it costs in Fontana
Cabinet and countertop replacement in Fontana typically runs $12,000 – $25,000 depending on cabinet construction, counter material, and whether the footprint changes.
How we do it
We remove the old boxes, repair framing as needed, install new cabinet runs, template and fit the counter, then reconnect the sink and fixtures in one sequence.
What Kitchen Remodeling Costs in Fontana
| Item | Typical range in Fontana |
|---|---|
| Full kitchen renovation | $35,000 – $70,000 |
| Cabinet and countertop replacement | $12,000 – $25,000 |
| Panel upgrade to support a modern kitchen | $3,500 – $6,000 |
Fontana’s older panel situation pushes some kitchen jobs higher than the same remodel would cost in a newer tract, because a 60-amp service usually cannot carry a modern kitchen plus an ADU. We price the panel and service upgrade into the estimate up front so the number does not move once work starts.
How long does a kitchen remodel take in Fontana?
Most Fontana kitchen remodels run six to ten weeks from demo to final inspection. Slab plumbing replacement, panel upgrades, and permit review cycles in Fontana can extend that range on older homes. Call (833) 863-7015 for a timeline specific to your job.
Will my Fontana kitchen require a permit?
Yes. Any Fontana kitchen remodel that moves plumbing, changes the electrical layout, or alters walls requires a permit and inspections. We pull permits and manage the inspection schedule as part of the job. Call (833) 863-7015 to confirm what applies to your scope.
Brands We Service in Fontana
We build and install across a full roster of prefab ADU systems, including Cover, Dvele, and Mighty Buildings. Parts and finish materials for those systems are sourced regionally, which keeps lead times predictable for Fontana lots. See our brands for the full comparison and what each system costs per square foot.
Pricing for ADU Company in Fontana, CA
| Service | Typical range in Fontana |
|---|---|
| Full kitchen renovation | $35,000 – $70,000 |
| Cabinet and countertop replacement | $12,000 – $25,000 |
| Panel upgrade to support a modern kitchen | $3,500 – $6,000 |
| Bathroom remodel (mid-range) | $18,000 – $35,000 |
| Primary bath remodel (higher-end) | $35,000 – $60,000 |
| ADU construction (prefab, 1-bedroom) | $120,000 – $250,000 |
| ADU construction (site-built, 2-bedroom) | $250,000 – $450,000 |
| Garage conversion to ADU | $80,000 – $160,000 |
| ADU permit and design package | $8,000 – $20,000 |
| Site prep and utility trenching for ADU | $5,000 – $15,000 |
Fontana prices run higher when the original 60-amp panel must be upgraded to serve both the house and the new kitchen or ADU, and when single-slab plumbing forces trench work in the existing footprint. We write estimates as fixed, line-item quotes with no change orders unless you change the scope.
Neighborhoods We Serve in Fontana
We work across Fontana’s ZIP codes: 92334, 92335, 92336, and 92337. In older 92335 neighborhoods with alley access, we stage materials from the side yard rather than the street, which keeps the build quieter for neighbors. Response time for an estimate visit anywhere in the city is typically within a few business days.
- 92335 – older ranch tract neighborhoods with the most ADU conversion activity
- 92336 – 1960s and 1970s stucco tracts with large backyards
- 92337 – newer subdivisions, many with HOA review requirements
- 92334 – mixed housing stock, including some older lots with alley access
Service Area – Cities Near Fontana
Guest House ADU Builders serves the surrounding Inland Empire communities, including Bloomington, CA, Rialto, CA, Glen Avon, CA, and Pedley, CA. If your property sits in one of those cities, the same team that works in Fontana handles your estimate, permits, and build.
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
Most Fontana projects start within two to four weeks of signing, depending on permit queue in the city and whether your lot triggers discretionary review. Call (833) 863-7015 and we’ll give you a realistic start date after looking at your specific property.
Some Fontana subdivisions in 92337 and newer planned communities have HOAs that require design review before the city will issue permits. We identify that requirement during the first site visit and handle the application documents as part of the permit package.
Yes. That is exactly the combination we do most often in Fontana: one permit set, one schedule, one team. It keeps subcontractors from colliding and usually shortens the total timeline versus running the two projects separately. Call (833) 863-7015 to map out both scopes in one walkthrough.
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
"Knew the local setback and parking rules cold, which saved us from designing something that would never have been approved."
— Yolanda Morales"The kitchenette layout he suggested made better use of the space than the one on our original sketch."
— Adriana Garcia"Every invoice was tied to a completed milestone, so I always knew what I was paying for."
— Paige Barrett