ADU Company in San Bernardino — 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 San Bernardino, CA

Kitchen remodeling in San Bernardino usually costs between $28,000 and $65,000 for a full renovation, and the work tends to cluster around older stucco homes where original 1940s-1970s layouts no longer work for modern families. We’re Fullerton ADU Builders, and we approach every San Bernardino kitchen with the same discipline we bring to ADU construction: clear scope, fixed numbers, and a finish that holds up to inland heat and daily use. Call (877) 801-4497 if you’re ready to price a remodel rather than guess at it.

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Why San Bernardino Homes Are Different

Most of the housing stock in San Bernardino’s 92404, 92405, 92410, and 92411 ZIP codes was built between the 1940s and the 1970s. That means single-story stucco tract homes and post-war bungalows with solid bones but outdated mechanicals. The kitchens in these homes were designed for a different era: small footprint, limited counter space, one cook, no ventilation to speak of, and electrical panels that were never sized for today’s appliance loads.

The climate adds another layer. San Bernardino sits in a hot inland valley where summer temperatures routinely climb past 100 degrees and Santa Ana winds push dry air through in the fall. A kitchen remodel here has to account for heat gain, ventilation, and finishes that won’t warp or fade. Cabinetry and flooring materials that perform fine in coastal climates can fail fast in this heat. We also see a lot of unpermitted prior work in these older homes, usually a kitchen or a garage conversion done decades ago, that surfaces during plan check and has to be documented or corrected before the city signs off. That’s not a reason to avoid the project. It’s a reason to plan for it from day one.

Our Main San Bernardino Services

San Bernardino homeowners call us about two things more than anything else: adding an ADU to a deep lot, and remodeling a bathroom in a house that hasn’t had one updated since the Nixon administration. Here’s what each job looks like in this city.

ADU Builders in San Bernardino

San Bernardino’s wide, flat lots and detached garages make it one of the strongest ADU markets in the Inland Empire. Homeowners in neighborhoods like Mountain View and Terrace Lake regularly ask us about converting a rear garage into a casita for extended family or a rental unit. The challenge is that many of these garages were built unpermitted or partially converted decades ago, so the first job often becomes legalizing what’s already there before we can pull permits for the new unit. We match the unit to the lot, not the other way around, and we work across both site-built and prefab pathways. Read the full breakdown at ADU Builders in San Bernardino.

ADU Builders in San Bernardino

Bathroom Remodeling in San Bernardino

The post-war bungalows across San Bernardino typically have one small bathroom with original cast iron plumbing that’s finally failed or a layout that can’t support two people getting ready at once. We see a lot of requests to split a single bathroom into a primary and a hall bath, or to add a second bath near the back of the house where the lot allows. Inland heat also means ventilation matters more here than homeowners expect. A properly vented bathroom prevents the moisture and mildew problems that come with summer humidity and enclosed showers. That full scope is covered at Bathroom Remodeling in San Bernardino.

Bathroom Remodeling in San Bernardino
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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 San Bernardino

A full kitchen remodel in San Bernardino typically runs between $28,000 and $65,000 depending on layout changes, cabinet grade, and how much of the original electrical and plumbing has to be replaced. These homes are 50 to 80 years old now, so we almost never open a wall without finding something that needs correcting: cloth-wrapped wiring, a drain line made of galvanized steel that’s half closed with corrosion, or a panel that’s already at capacity. The heat is the other constant. San Bernardino kitchens need real ventilation and materials that can take triple-digit summers without warping. That’s why we specify finishes and cabinetry rated for wide temperature swings, and why we treat the mechanical rough-in as the most important phase of the job. For a broader look at how we approach this trade, see Kitchen Remodeling.

Full Kitchen Renovation

Signs you need it

Your cabinets are delaminating at the corners, the layout puts the range against the refrigerator, and the original 1960s panel can’t support a single modern appliance circuit without tripping.

What it costs in San Bernardino

A full kitchen renovation with layout changes, new cabinets, counters, and electrical typically runs $38,000 to $65,000 in San Bernardino.

How we do it

We open the walls, rough in new electrical and plumbing to code, rebuild the layout for multiple cooks, and install cabinetry, counters, appliances, and ventilation in sequence.

Cabinet Refacing and Countertop Replacement

Signs you need it

The cabinet boxes are structurally sound but the doors and drawer fronts are shot, and the counter has burns, chips, or a laminate seam that’s lifting.

What it costs in San Bernardino

Cabinet refacing and countertop replacement in San Bernardino usually lands between $12,000 and $28,000.

How we do it

We verify the boxes are level and secure, replace doors, drawer fronts, and hardware, then install the new counter surface to spec.

What Kitchen Remodeling Costs in San Bernardino

Item Typical range in San Bernardino
Cabinet refacing and countertop replacement $12,000 – $28,000
Full kitchen renovation $38,000 – $65,000
Kitchen + bathroom combined remodel $55,000 – $110,000

How much does a kitchen remodel add to home value in San Bernardino?

A kitchen remodel in San Bernardino generally recovers 55 to 70 percent of its cost at resale, with higher recovery on mid-range renovations than on high-end ones in these 1940s-1970s neighborhoods. Call (877) 801-4497 to price your specific scope.

Will the price change once work starts?

No. We price the job after opening walls and inspecting the mechanicals, then issue a fixed written quote. Change orders only happen if you add scope, never because we missed something. Call (877) 801-4497 for a free estimate.

Brands We Service in San Bernardino

For San Bernardino ADU projects we work directly with Abodu, Cover, and Dvele, and we specify James Hardie fiber cement cladding on site-built units for fire resistance and heat durability. Parts are ordered at permit approval so lead times don’t stall the job. See our brands for the full range.

Pricing for ADU Company in San Bernardino, CA

Service Typical range in San Bernardino
Kitchen remodel (full renovation) $38,000 – $65,000
Kitchen remodel (cabinet refacing and counters) $12,000 – $28,000
Bathroom remodel (full) $18,000 – $45,000
Bathroom remodel (shower replacement) $9,000 – $22,000
ADU (prefab) $200,000 – $400,000
ADU (site-built) $300,000 – $650,000
ADU (garage conversion) $120,000 – $250,000
Kitchen + bathroom combined remodel $55,000 – $110,000

In San Bernardino, the two biggest price movers are the condition of the original electrical and plumbing, and whether unpermitted prior work has to be corrected before the city will issue permits. We price each job with a fixed written quote before work starts, and we don’t change that number unless you change the scope.

Neighborhoods We Serve in San Bernardino

We work across San Bernardino’s residential neighborhoods, and most of our kitchen and ADU projects cluster in the central and eastern flat-land areas where post-war housing and deep lots are the norm. Typical response time for a first site visit within the city is one to three business days.

  • Mountain View
  • Terrace Lake
  • Sandora
  • Ayers Park
  • Badger Hill

Service Area – Cities Near San Bernardino

Fullerton ADU Builders has served San Bernardino since 2017, and we regularly run projects in the surrounding Inland Empire cities. If your property is in Muscoy, CA, Highland, CA, Loma Linda, CA, or Rialto, CA, we’re already familiar with the local permitting offices and lot conditions. Call (877) 801-4497 to confirm your address is in our service area and book a free estimate.

Serving San Bernardino, CA — Our Local Coverage Area

We’re based in the San Bernardino 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 San Bernardino

Ready to get started? Free estimates · Written quotes before work starts response in San Bernardino
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 San Bernardino Customers Say

★★★★★ 4.8 from 4+ reviews

"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

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

— Marisol Guzman

How It Works in San Bernardino

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 San Bernardino — 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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