ADU Company in Pomona, CA
Kitchen remodeling in Pomona often means working inside a 1950s or 1960s tract home where the original footprint is tight, the plumbing is cast iron, and the layout was built for a different era. Costa Mesa ADU Builders has served Pomona since 2012, and we’ve remodeled kitchens across 91766, 91767, 91768, and 91769. We also design and build ADUs – both prefab and site-built – so if you’re planning a rear-lot rental for Cal Poly students or a multigenerational addition, the kitchen and the new structure can move forward under one contract. Call (833) 589-8273 to talk through your lot and your goals.
Why Pomona Homes Are Different
Pomona’s housing stock runs heavily to single-story tract homes from the 1950s through the 1970s, most of them on 6,000 to 7,000 square foot lots. That shapes both kitchen remodels and ADUs. In the older neighborhoods off Holt and Mission, especially around 91766, many backyards still have detached garages that open onto alleys, and a lot of those garages already carry utility easements. That can shave weeks off an ADU permit. But it also means checking alley grading before anyone prices a rear-lot slab – in some pockets, the alley sits low enough that you’ll need a retaining wall, and out-of-town builders miss that until the inspector’s first visit.
The climate matters too. Pomona’s summers run hot and dry, and Santa Ana wind events push through the eastern San Gabriel Valley in the fall. Any ADU we design for Pomona needs more roof insulation and shaded window placement than you’d spec near the coast. Fire-resistant exterior cladding, which is exactly why we work with James Hardie fiber-cement siding, is a real consideration here, not a marketing line. Rain is seasonal but can arrive hard, so drainage and slab elevation get more attention than freeze protection.
The demand driver is also specific to Pomona. Rental demand near Cal Poly Pomona and along the 10 and 60 freeway corridors is structurally different from what you’d see in Claremont or La Verne. Pomona homeowners are more likely to convert a garage or build a rear-lot ADU aimed at student renters and commuters, and less likely to build a second-story addition. That changes the budget conversation and the layout conversation.
Our Main Pomona Services
The two calls we get most often from Pomona homeowners are for ADUs and bathroom remodels. Here’s what each one looks like in this city.
ADU Builders in Pomona
Pomona’s deep-lot tract homes and alley-loaded older neighborhoods make this one of the best ADU markets in the San Gabriel Valley. We compare seven prefab manufacturers – Abodu, Cover, Dvele, Mighty Buildings, Boxabl, Plant Prefab, and Tuff Shed – against site-built construction, then recommend the path that fits your lot constraints, timeline, and rental goals. Garage conversions in 91766 and 91767 often need foundation and drainage work first, and we handle that in the same contract as the structure and interior finish. ADU Builders in Pomona
Bathroom Remodeling in Pomona
Most Pomona bathrooms we open up are original to a 1950s or 1960s home, which means cast-iron drain lines, a single bath for the whole house, and a footprint that was not designed for a family of four. We remodel bathrooms in-house, including full gut work, shower and tub replacements, waterproofing, and finish plumbing. If you’re adding an ADU, we can sequence the primary-home bathroom and the ADU build so you’re not living through two separate rounds of noise and dust. Bathroom Remodeling in Pomona
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 Pomona
Kitchen remodeling in Pomona usually means opening up a galley kitchen in a 1950s or 1960s tract home, replacing cast-iron plumbing, and reworking the layout so it actually functions for the way people cook now. The hot, dry climate means we also pay attention to ventilation – a good range hood and proper exhaust routing matter more here than in a coastal kitchen with open windows year-round. We handle Kitchen Remodeling as a full-scope job: design, demolition, structural work if load-bearing walls are coming out, plumbing, electrical, drywall, cabinetry, counters, and finish trim – all with our own crews rather than a rotating cast of subcontractors.
Galley Kitchen Opening
Signs you need it
The kitchen is exactly one cook wide, the refrigerator door blocks the main walkway, and the wall between the kitchen and dining room is load-bearing – common in Pomona’s 1950s tract homes.
What it costs in Pomona
Expect $35,000 to $65,000 for a full galley opening with structural beam work, depending on whether the wall is load-bearing and how much plumbing has to move.
How we do it
We confirm which walls are load-bearing, engineer the beam or header, demo the wall, reroute mechanicals, then rebuild the kitchen as one open room with a peninsula or island.
Cast Iron Pipe and Wiring Replacement
Signs you need it
Your home is from the 1950s or 1960s, the kitchen drain runs slow, and the electrical panel is the original 100-amp unit that cannot carry a modern appliance load.
What it costs in Pomona
Budget $8,000 to $15,000 for cast-iron drain replacement and a 200-amp panel upgrade, which most Pomona kitchen remodels in older homes need.
How we do it
We locate and replace the under-slab or in-wall cast iron, pull new circuits for appliances and lighting, and upgrade the panel before drywall and cabinets go back in.
What Kitchen Remodeling Costs in Pomona
| Item | Typical range in Pomona |
|---|---|
| Full kitchen remodel, 1950s-1970s home | $35,000 – $65,000 |
| Cast iron pipe and electrical panel upgrade | $8,000 – $15,000 |
| Load-bearing wall removal with beam | $5,000 – $10,000 |
How long does a kitchen remodel take in Pomona?
Most Pomona kitchen remodels run 6 to 10 weeks from demo to final walkthrough. Homes with cast-iron pipe replacement or structural work run toward the longer end. Call (833) 589-8273 and we’ll give you a written timeline before the first wall comes down.
Will the price change once work starts?
No, not unless you change the scope. We price from a written line-item quote and we do not issue change orders for conditions we should have caught in the estimate. In Pomona’s older homes, that means we open walls during the estimate phase, not after. Call (833) 589-8273 for a free estimate.
Brands We Service in Pomona
We source and install Mighty Buildings, Boxabl, Plant Prefab, and Tuff Shed products, and our Pomona projects often pair a Tuff Shed shell with in-house interior finish work. Common hardware and trim parts are stocked locally, which keeps most service calls to a single visit. See our brands for the full roster.
Pricing for ADU Company in Pomona, CA
| Service | Typical range in Pomona |
|---|---|
| Full kitchen remodel, 1950s-1970s home | $35,000 – $65,000 |
| Cast iron pipe and electrical panel upgrade | $8,000 – $15,000 |
| Load-bearing wall removal with beam | $5,000 – $10,000 |
| Bathroom remodel, single bath home | $22,000 – $40,000 |
| ADU feasibility, design, and permit set | $6,000 – $12,000 |
| Prefab ADU, 1-bedroom unit | $180,000 – $280,000 |
| Site-built ADU, 1-bedroom unit | $220,000 – $350,000 |
| Garage conversion ADU | $150,000 – $250,000 |
What pushes a Pomona job toward the top of these ranges is usually site work: alley retaining walls, older panel replacements, cast-iron drain replacement, and slab elevation. We give line-item quotes before work starts, and we do not change the price unless you change the scope.
Neighborhoods We Serve in Pomona
We work across Pomona’s residential neighborhoods, from the alleys off Holt and Mission in 91766 to the tract subdivisions closer to the 10 and 60 freeways. Most of our Pomona jobs run from Lincoln Park up through Westmont and down toward Phillips Ranch. Response time for a Pomona estimate is typically within one to two business days.
- Lincoln Park
- Westmont
- Phillips Ranch
- Holt-Mission corridor
- North Pomona
Service Area – Cities Near Pomona
We serve Pomona and the surrounding San Gabriel Valley and Inland Empire cities. If you’re in La Verne, CA, Claremont, CA, Montclair, CA, or Los Serranos, CA, we can bring the same full-scope ADU, kitchen, and bathroom remodeling approach to your project.
Serving Pomona, CA — Our Local Coverage Area
We’re based in the Pomona 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 Pomona
Yes, we pull all required permits through the City of Pomona and schedule the inspections. Pomona’s permit process for ADUs has specific requirements for alley-loaded lots, setback from the rear property line, and utility connections. We handle the documentation and the inspection calendar for you.
Most Pomona projects start within 2 to 4 weeks of a signed contract, depending on city plan review timelines and material lead times. Prefab ADU shells from our manufacturer partners usually arrive faster than site-built framing, and we’ll walk you through both timelines before you commit. Call (833) 589-8273 to get a realistic start date for your specific job.
Yes. Older Pomona homes in the Holt-Mission corridor and near downtown often have cast-iron plumbing, knob-and-tube wiring, and alley-loaded garages, and we’re familiar with all three. The estimate phase includes opening walls to check conditions, so you’re not surprised with change orders after demo starts.
Call (833) 589-8273 to schedule a free estimate for your Pomona kitchen remodel, bathroom remodel, or ADU project. We’ll walk the lot, check the structure, and give you a written line-item quote.
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 Pomona Customers Say
"The kitchenette layout he suggested made better use of the space than the one on our original sketch."
— Ryan Padgett"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."
— Andres Rodriguez"Sound insulation between the unit and the main house is better than I expected. You genuinely cannot hear the tenant."
— Imani Ellison