ADU Company in Upland — 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 Upland, CA

Kitchen remodeling in Upland is a different animal than it is in the flat tract neighborhoods of Rancho Cucamonga or Ontario. Homes here run the gamut from 1920s bungalows near Euclid Avenue to 1970s ranch tract builds to custom foothill properties in 91784 – and each era has its own plumbing, framing, and electrical quirks that a remodel will expose. Home Base ADU Builders has served Upland since 2016, and we’ve spent those years learning exactly where these homes fight back. Call (866) 403-9834 for a free estimate.

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Why Upland Homes Are Different

Upland sits pressed against the San Gabriel Mountains, and the terrain dictates the work. Lots in the 91784 foothill ZIP climb steeply enough that any structural work – even interior kitchen renovation – has to account for slope, drainage, and foundation behavior. We regularly open up kitchens in these hillside homes and find slab movement that a flat-lot contractor would never anticipate. It changes how we frame, how we level, and how we sequence the job.

The older core around historic downtown is its own puzzle. Pre-war and mid-century homes near Euclid Avenue often have detached garages at the rear property line, mature trees with aggressive root systems, and original cast-iron sewer lines that no one has looked at in decades. A kitchen remodel in these homes frequently turns into a plumbing-upgrade project once we get behind the walls. The 1950s through 1970s ranch tracts have better bones but tight kitchens, low ceilings, and panel boxes that were sized for an era with three appliances, not six. Hot inland summers and Santa Ana wind events from October through December mean ventilation and cooling load calculations are never an afterthought here. And the historic overlay district adds a review layer to exterior-facing changes like window relocations or range-vent penetrations.

Our Main Upland Services

Most Upland homeowners call us about one of two things: building an ADU in their rear yard, or bringing a bathroom up to the standard of the rest of the house. Here’s how each plays out in this city.

ADU Builders in Upland

ADU builds in Upland are shaped by the lot more than the floor plan. In the foothill ZIP of 91784, a rear-yard ADU often means cut-and-fill work, retaining walls, and drainage plans before a single wall goes up. In the older core near downtown, an existing detached garage at the alley line is often the fastest path to a permitted ADU – but mature-tree protections and the historic overlay can add review time. We work across prefab manufacturers like Boxabl, Plant Prefab, and Tuff Shed conversions so the build method matches the lot, not the other way around. For a full breakdown of how ADUs work in this city, see our ADU Builders in Upland page.

ADU Builders in Upland

Bathroom Remodeling in Upland

Bathrooms in Upland’s older homes are usually small, oddly placed, and built before anyone thought about ventilation. We handle full gut renovations, reconfigurations, and accessibility upgrades – and we do it with an eye toward the same issues that affect kitchens here: cast-iron drains in the old core, slab conditions in the foothills, and real humidity management for inland summers. Because we build ADUs too, we understand how a bathroom fits into a whole-property plan. Our Bathroom Remodeling in Upland page covers costs, timelines, and common surprises in detail.

Bathroom Remodeling in Upland
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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 Upland

A kitchen remodel in Upland has to account for what’s behind the drywall as much as what goes on top of it. Older homes near downtown often hide cast-iron plumbing and undersized electrical panels, while hillside homes in 91784 can have slab movement that shows up as uneven floors and cracked tile. We plan every Upland kitchen job with those conditions in mind from day one – which is why our quotes include line-item allowances for the work that only reveals itself after demo. If you’re researching what a kitchen renovation involves, our main Kitchen Remodeling page walks through the full process.

Full Kitchen Gut Renovations

Signs you need it

Your Upland kitchen still has its original 1960s or 1970s layout, the cabinet boxes are water-damaged or delaminating, and you’re working around a footprint that no longer fits how your household cooks.

What it costs in Upland

A full kitchen gut renovation in Upland typically runs $45,000 to $85,000 depending on cabinet grade, countertop material, and how much plumbing and electrical work the existing conditions demand.

How we do it

We demo to studs, upgrade plumbing and electrical to current code, level the subfloor where hillside movement has caused dips, install new cabinetry and stone or quartz countertops, and finish with appliances, backsplash, and lighting.

Cabinet Refacing and Countertop Replacement

Signs you need it

Your cabinet boxes are structurally sound and you like the existing layout, but the doors and drawer fronts are worn, the finish is dated, and your counters are chipped or stained.

What it costs in Upland

Cabinet refacing with new countertops in Upland typically runs $15,000 to $30,000, with the range driven by the total linear feet of cabinetry and the countertop material you choose.

How we do it

We measure every cabinet opening, order new doors and drawer fronts sized to your existing boxes, replace hardware and hinges, then template and install new countertops over a prepared and leveled base.

What Kitchen Remodeling Costs in Upland

Item Typical range in Upland
Full kitchen gut renovation $45,000 – $85,000
Cabinet refacing + new countertops $15,000 – $30,000
Plumbing and electrical upgrades (when needed) $8,000 – $20,000

Do I need a permit for a kitchen remodel in Upland?

Yes, any Upland kitchen remodel that moves plumbing, electrical, or walls requires a city permit. We handle the full permit package, inspections, and final sign-off as part of every job – you won’t chase paperwork.

How long does a kitchen remodel take in Upland?

Most Upland kitchen remodels run 6 to 10 weeks from demo to final walkthrough. Jobs in the historic overlay district can add a week or two for exterior-facing changes, and hillside homes sometimes need extra subfloor leveling time. Call (866) 403-9834 for a timeline specific to your street.

Brands We Service in Upland

We build with the brands that hold up in Upland’s dry heat and Santa Ana winds. James Hardie fiber-cement exteriors are our standard on ADU builds for their fire resistance and dimensional stability, and we work hands-on with Boxabl and Plant Prefab as part of our broader our brands lineup. Parts and finish materials are sourced through local Inland Empire suppliers, which keeps lead times from turning into schedule killers.

Pricing for ADU Company in Upland, CA

Service Typical range in Upland
Full kitchen gut renovation $45,000 – $85,000
Cabinet refacing + new countertops $15,000 – $30,000
Plumbing and electrical upgrades (kitchen) $8,000 – $20,000
Bathroom full gut renovation $25,000 – $45,000
Bathroom refresh (fixtures, tile, vanity) $12,000 – $22,000
ADU design and permit package $15,000 – $25,000
Prefab ADU (manufacturer base price) $180,000 – $350,000+
Custom ADU construction $250,000 – $450,000+
Tuff Shed conversion to ADU $80,000 – $150,000
Site work, grading, retaining walls (foothill lots) $20,000 – $60,000
Utility connections and trenching $8,000 – $25,000
James Hardie exterior siding (ADU package) $12,000 – $25,000

In Upland, the biggest price swing comes from what’s under your feet: a flat mid-city lot is one thing, but a steep 91784 hillside lot with cut-and-fill, retaining walls, and drainage engineering will add real cost before framing begins. We quote every Upland job with a fixed, line-item price up front – no change orders, no surprise add-ons.

Neighborhoods We Serve in Upland

We work across all three Upland ZIP codes – 91784, 91785, and 91786 – and know the neighborhoods well enough to predict the common issues before we arrive. Our team is based nearby, so we’re typically on site for an estimate within a few days of your call.

  • San Antonio Heights foothill area (91784)
  • Historic downtown and Euclid Avenue corridor (91786)
  • North Upland ranch tracts (91784)
  • The Colonies area (91784)
  • South Upland near the Montclair border (91786)

Service Area – Cities Near Upland

While most of our work is in Upland proper, we also serve the neighboring foothill and valley communities. Homeowners in San Antonio Heights, CA often call us about ADU feasibility on steep canyon lots. In Claremont, CA we work around the village core and college-area rentals. Montclair, CA and Rancho Cucamonga, CA are both regular stops for kitchen and bath remodels along the 10 corridor. If you’re nearby, call and ask – we’ll tell you straight whether we’re a fit for your project.

Serving Upland, CA — Our Local Coverage Area

We’re based in the Upland 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 Upland

Ready to get started? Free estimates · Free written quotes response in Upland
Call (866) 403-9834

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 Upland 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."

— Robert Hayes

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

— Colleen Pruitt

"Knew the local setback and parking rules cold, which saved us from designing something that would never have been approved."

— Priya Mehta

How It Works in Upland

Getting your adu handled is simple and fast.

1

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2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Upland — 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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