Kitchen Remodeling in Diamond Bar, CA
Riverside Kitchen Remodeling Pros is a trusted kitchen remodeling contractor across the Inland Empire and eastern Los Angeles County, specializing in open concept conversions, load-bearing wall removal, and custom cabinet installation. We offer soffit removal and quartz and granite countertop replacement.
- Licensed, insured & bonded
- Itemized written estimates
- Permits pulled and inspections scheduled
- Diamond Bar and Los Angeles County
Request a FREE Quote!
Or call (951) 257-7991. Calls only, we do not receive messages at this number.
Our team provides measured design and 3D planning, delivering opened-up floor plans for homes, with durable, high-traffic specifications. Backed by a California contractor license and general liability insurance, we have completed projects ranging from a single galley wall opened into a dining room to a hillside kitchen rebuilt around a new structural beam.
From the stepped post and footing detail under a new beam to island circuits, seam placement and final punch, our team handles every detail. Serving Diamond Bar, Chino Hills, Walnut and Claremont, we ensure fast, efficient service and deliver reliable, professional, and beautiful results on every kitchen remodeling project.
Call (951) 257-7991 for a free in-home estimate in Diamond Bar. We measure the cabinet run, check whether the wall between your kitchen and dining room carries load, and put a written scope and range in your hands before demolition.
Kitchen Remodeling Services in Diamond Bar
Diamond Bar calls arrive with the same complaint. The kitchen is walled off, the counter run is too short, and a soffit hangs over the wall cabinets stealing the top foot of the room.
So the work runs in a particular order here. Wall and peninsula removal first, cabinetry second, surfaces third. A typical project means taking out the partition between kitchen and dining room, dropping the soffit, extending the cabinet run past its original 8 to 12 feet, and replacing the peninsula that has blocked traffic since the house was framed. Smaller scopes too: refacing, laminate to quartz, a new island.
What 1960s to 1980s Hillside Tract Housing Means for Your Remodel
The first houses in Diamond Bar went up in 1959, and the city did not incorporate until April 18, 1989. Nearly the entire inventory was framed in between, and that window produced one very specific kitchen.
Closed plan. A galley or U-shaped kitchen walled off from the dining and living rooms. This drives most remodel demand in the city, which is why an open concept kitchen remodel is the scope we quote most here.
Short cabinet run. Eight to twelve linear feet was a normal 1972 kitchen. Extending it usually means annexing wall space that belongs to the dining room today.
The soffit. A boxed bulkhead above the wall cabinets, sometimes hollow, sometimes carrying a duct. We open it before quoting, not after.
Hillside lots. Diamond Bar is built into hills, so split-level plans and stepped foundations are common. When a bearing wall comes out on a split level, the new beam lands on posts that must carry down to something able to take the point load, and a stepped foundation complicates where that footing goes. We have an engineer size the beam and stamp the drawing rather than guessing at a load path.
See the Standard of Finish

BeforeAfter
Drag the handle across. The same kitchen, same camera position, before demolition and after completion.
Kitchen Remodel Cost in Diamond Bar, CA
Median household income here was $106,602 in 2023 and 74.2% of housing is owner-occupied. High owner-occupancy in an aging tract market produces long-term owners doing one substantial remodel rather than a cosmetic flip. Market ranges, not a quote.
| Project type | Typical Diamond Bar range |
|---|---|
| Cosmetic refresh (refacing, counters, backsplash) | $12,000 to $28,000 |
| Soffit removal and cabinet extension | $8,000 to $22,000 |
| Mid-range full remodel | $30,000 to $65,000 |
| Wall removal with engineered beam | $9,000 to $35,000 |
| Open plan remodel, structure plus kitchen | $45,000 to $95,000 |
| High-end remodel | $70,000 to $150,000+ |
Five things move the number. Whether the wall is bearing, since a partition comes out cheaply and a bearing wall brings engineering, plan check and footings. Whether that beam drops or gets framed flush. What is inside the soffit, because a duct is a mechanical reroute. Linear feet of cabinet run. And countertop material, roughly $40 to $100 per installed square foot for granite, $60 to $150 for quartz, and $80 to $250 for quartzite.
How the Process Works
| Phase | What happens | Typical duration |
|---|---|---|
| 1. In-home measure | Field measure, load path review, budget range | 1 visit |
| 2. Design and 3D plan | Layout options, elevations, walkthrough | 1 to 3 weeks |
| 3. Written proposal | Line-item scope, allowances, payment schedule | 3 to 5 days |
| 4. Engineering and permit | Beam sizing, stamped drawings, City of Diamond Bar submittal | 2 to 8 weeks |
| 5. Demolition and rough-in | Tear-out, soffit removal, framing, electrical, plumbing | 1 to 2 weeks |
| 6. Cabinets and template | Set boxes, template counters off them | 1 week |
| 7. Fabrication and install | Slab set, backsplash, plumbing trim | 2 to 3 weeks |
| 8. Punch and closeout | Touch-up, final inspection, warranty documents | 2 to 5 days |
Most full Diamond Bar kitchens run six to twelve weeks on site. On structural jobs, plan check stretches the calendar more than construction.
Why Diamond Bar Homeowners Hire Us
Licensed and insured. We hold a California contractor license through the CSLB, which licenses contractors statewide, and carry general liability coverage. Certificates go out before we mobilize.
Permits through the right city. Kitchen work here is permitted by the City of Diamond Bar, in Los Angeles County, not through any Riverside agency. Electrical, plumbing, gas and structural work typically requires one, and structural changes typically require stamped drawings and plan check. We handle submittal and inspections.
We understand split-level framing. Stepped foundations and half-level floor changes are normal here, and they change how a beam gets supported.
Written warranty. Every project carries a written workmanship warranty alongside manufacturer coverage on cabinets, counters and appliances.
Neighborhoods and Areas We Cover in Diamond Bar
The city divides into two halves, Northern Diamond Bar and Southern Diamond Bar, separated by the power line corridor and served by different school districts: Walnut Valley Unified, which employs 520 people, and Pomona Unified. We work both.
We reach jobs off Diamond Bar Boulevard, Grand Avenue, Pathfinder Road, Golden Springs Drive and Brea Canyon Road, and cover the hillside tracts above and below them. Access is quick from CA-60, the Pomona Freeway, and CA-57, the Orange Freeway, with CA-71 just east and I-10 just north. Our crews already run that corridor, including work near the South Coast Air Quality Management District headquarters, the city’s largest employer at 786.
We cover two neighboring cities as well: kitchen remodels in Chino Hills and Claremont kitchen projects.
Kitchen Services We Provide in Diamond Bar
- Whole-kitchen gut and rebuild, demolition through final inspection.
- Cabinetry built to your actual wall dimensions, face frame or frameless European.
- New doors and fronts over sound cabinet boxes, when the layout already works.
- Quartz, granite and porcelain slab counters, templated and seamed on site.
- An island where the peninsula used to be, circuits and plumbing included.
- Measured drawings and a rendered walkthrough before a cabinet is ordered.
Start at our Riverside kitchen remodeling overview or browse the full services list.
Frequently Asked Questions
How much does a kitchen remodel cost in Diamond Bar, CA?
Mid-range full remodels typically run $30,000 to $65,000, high-end projects $70,000 to $150,000 or more, and a refacing-and-counters refresh $12,000 to $28,000. Structural scope is what usually separates a Diamond Bar budget from the same kitchen in a newer tract.
Do I need a permit for a kitchen remodel in Diamond Bar?
In most cases yes, if the work involves electrical, plumbing, gas or structural changes. Permits are pulled through the City of Diamond Bar, in Los Angeles County. A like-for-like countertop or door swap usually does not require one.
You are based in Riverside. Can you work in Los Angeles County?
Yes. A California Contractor License issued by the CSLB is valid statewide. What changes is the jurisdiction handling plan check and inspections, which is the City of Diamond Bar.
Can the wall between my kitchen and dining room come out?
Usually, though cost depends on whether it carries load. If it is structural, an engineer sizes the beam and stamps the drawing and the posts carry down to footings. Split-level floors affect where those footings land.
How long will my kitchen be out of service?
Six to twelve weeks on site, plus two to eight weeks of lead time for cabinets, slab and permits. Expect two to five days without a working sink.
Do you work both Northern and Southern Diamond Bar?
Yes, both halves, on either side of the power line corridor, in the Walnut Valley Unified and Pomona Unified areas alike.
Get a Free Kitchen Remodeling Estimate in Diamond Bar
Call (951) 257-7991 or request an estimate online. Tell us the size of the kitchen, whether there is a wall you want gone, and when you want to start. We will measure in Diamond Bar, review the load path, and hand you a written range.
Riverside Kitchen Remodeling Pros, 3610 Central Ave, 6th Floor, Ste 14, Riverside, CA 92506. Licensed. Insured. Serving Diamond Bar and eastern Los Angeles County.
Request a FREE Quote!
Or call (951) 257-7991. Calls only, we do not receive messages at this number.
Licensed, insured and bonded. Calls only, we do not receive messages at this number.