ADU Company in Highgrove, CA
Kitchen remodeling in Highgrove usually means working inside a home built between the 1950s and 1980s, where the original layout was designed for a different era. Most of these kitchens sit on generous lots, but inside they’re tight, dark, and fighting against Inland Empire heat that makes an unventilated cooking space unbearable by July. Sunstone ADU Builders handles kitchen remodels in Highgrove with the same discipline we bring to ADU construction: fixed pricing, in-house crews, and a finished product that matches how the house gets used. Call (855) 949-1913 for a free estimate.
Why Highgrove Homes Are Different
Highgrove is unincorporated Riverside County, which changes nearly every part of a kitchen remodel. There’s no city planning counter to visit. Permits go through Riverside County, and many properties rely on private wells and septic systems, so a project that starts as a kitchen remodel can quickly surface water-pressure or drainage questions that need answers before the county signs off. We’re familiar with that process and plan for it from the first site visit.
The housing stock is mostly older single-family homes with ranch-style footprints, and kitchens from that era share the same problems: a single oven cut into a wall, one narrow run of cabinets, fluorescent soffits boxing in the ceiling, and no exhaust beyond a recirculating hood. The lots are large, which means homeowners often ask us to capture side-yard space or bump out a rear wall while we’re already in there. Intense summer heat and Santa Ana winds make insulation and air sealing a real priority in Highgrove, not an upsell. We size ventilation to handle a 105-degree August afternoon and specify finishes that hold up to dry, hot conditions without warping.
Because the county reviews work that many cities push through over the counter, timelines in Highgrove can stretch an extra week or two. We tell homeowners that up front and build it into the schedule so nobody is surprised mid-project.
Our Main Highgrove Services
Most Highgrove homeowners call us about one of two things: adding an ADU to a large lot, or remodeling a bathroom that has outlived its plumbing. Both jobs move through the same county process, and both benefit from working with one contractor who understands Highgrove’s specific constraints.
ADU Builders in Highgrove
Highgrove is one of the few Inland Empire pockets where detached ADUs still pencil out quickly. Lots are wide, setbacks are forgiving, and the county’s pre-application meeting process is straightforward once you know what to bring. We handle the full build, from water and sewer capacity checks through the foundation, shell, and move-in finishes. For prefab projects, we’re authorized to build and install units from Abodu, Cover, Dvele, Mighty Buildings, Boxabl, and Plant Prefab, and we match the brand to your site rather than pushing one option. See ADU Builders in Highgrove for the full picture.

Bathroom Remodeling in Highgrove
Bathrooms in 1960s and 1970s Highgrove homes are usually original: cast iron tubs, tile counters, and shower valves that drip through the wall. We rebuild them to current county code, which often means replacing the shower valve, adding a dedicated vent fan, and waterproofing to modern standards. Since we also finish ADU interiors, the same crew that builds a bathroom in a new backyard unit can remodel the one in your main house. That’s the advantage of one contractor who does both. Details are on our Bathroom Remodeling in Highgrove page.

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 Highgrove

Kitchen remodeling in Highgrove means opening up a 1950s-to-1980s floor plan that was never designed for how families cook today. The homes here have generous lots and ranch-style layouts, which gives us options: we often pull the kitchen back toward the rear yard, add a window wall, or capture dead space from an awkward dining room. The Inland Empire heat matters too. A Highgrove kitchen needs real exhaust, not a recirculating hood, and insulation that keeps the room bearable when it’s 105 outside. As a company that specializes in ADUs and companion remodels, we bring the same fixed-price, in-house discipline to kitchen work that homeowners expect on a five-figure investment. Our full service line is on the Kitchen Remodeling hub page.
Cabinet and Countertop Replacement
Signs you need it
Cabinet boxes are delaminating at the sink base, drawer slides bind, or the counter overhang is cracked at the seam from forty years of Highgrove temperature swings.
What it costs in Highgrove
Cabinetry and countertop replacement across a typical 120-to-160-square-foot Highgrove kitchen runs $19,800 to $29,200 depending on material grade and whether the cabinet boxes themselves get reused or replaced.
How we do it
We demo to bare walls in a day, confirm plumbing and electrical locations, set new cabinets, template and install the countertops, and finish with hardware and a walkthrough.
Full Kitchen Renovation
Signs you need it
You have multiple problems stacked together: layout that traps two cooks in a corner, no usable prep surface, ventilation that doesn’t move air, and fixtures that are all end-of-life.
What it costs in Highgrove
A complete kitchen renovation in Highgrove, including layout changes and finish upgrades, typically lands between $28,900 and $46,400 depending on scope and whether walls move.
How we do it
We finalize the layout and hardware selections, pull the Riverside County permit, complete rough plumbing and electrical, close walls, install cabinets, counters, tile, and appliances, then hand you a finished kitchen under one contract.
What Kitchen Remodeling Costs in Highgrove
| Item | Typical range in Highgrove |
|---|---|
| Cabinet and countertop replacement | $19,800 – $29,200 |
| Full kitchen renovation | $28,900 – $46,400 |
| Kitchen island add-on | $6,200 – $11,800 |
How long does a kitchen remodel take in Highgrove?
A cabinet and countertop replacement typically runs three to four weeks. A full renovation with layout changes and county inspections usually takes six to eight weeks in Highgrove. Call (855) 949-1913 for a schedule tailored to your project.
Will my Highgrove kitchen remodel require a county permit?
Yes. Any work that touches plumbing, electrical, or walls requires a Riverside County permit in Highgrove. We pull permits on every job and handle the inspections, so you never sit with an open file. Call (855) 949-1913 to get started.
Brands We Service in Highgrove
We build and install prefab ADUs from Plant Prefab and Abodu, spec James Hardie fiber cement siding for exteriors that stand up to Highgrove’s sun and Santa Ana winds, and frame traditional or Tuff Shed-style structures where the site calls for it. See our brands for the full lineup.
Pricing for ADU Company in Highgrove, CA
| Service | Typical range in Highgrove |
|---|---|
| Cabinet and countertop replacement | $19,800 – $29,200 |
| Full kitchen renovation | $28,900 – $46,400 |
| Kitchen island add-on | $6,200 – $11,800 |
| Detached ADU build (noted per plan) | $160,000 – $475,000 |
| Prefab ADU (Abodu, Boxabl, Mighty Buildings) | $110,000 – $220,000 |
| Traditional custom ADU | $160,000 – $475,000 |
| Bathroom remodel (modest – midrange) | $185 – $310 per sq ft |
Highgrove pricing moves when a job requires a septic system upgrade, a new well pump, or a service panel replacement before the remodel work begins, and we flag those items in writing before starting. Our quotes are fixed, line-item, and include the permit work, so the number you approve is the number you pay.
Neighborhoods We Serve in Highgrove
We cover all of Highgrove’s 92313 ZIP code, including the pockets of older ranch homes and manufactured properties where lot sizes vary block by block.
- Highgrove proper
- Areas near Center Street
- Neighborhoods off Spring Street
- Properties along Cottonwood Avenue
- Developments near the 215 corridor
Most Highgrove homeowners can get a free on-site estimate scheduled within a week, depending on our crew’s current build calendar.
Service Area – Cities Near Highgrove
Sunstone ADU Builders also works across the neighboring Inland Empire communities, including Grand Terrace, CA, Colton, CA, Loma Linda, CA, and Rubidoux, CA. If your property sits outside Highgrove proper, call us and we’ll confirm coverage for your address.
Serving Highgrove, CA — Our Local Coverage Area
We’re based in the Highgrove 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 Highgrove
We typically schedule free on-site estimates in Highgrove within five to seven business days. Since our crews are already working across the Inland Empire, we can often fit a site visit around an existing job nearby. Call (855) 949-1913 and we’ll give you the next open slot.
Most Highgrove properties are not in HOAs, but if you belong to one, interior remodels rarely need association approval, though an ADU in the yard usually does. We’ll flag that during the first conversation. County permits are always required for plumbing and electrical work.
We cover all of Highgrove’s 92313 ZIP code plus Grand Terrace, Colton, Loma Linda, and Rubidoux. If you’re within a short drive and unsure, call (855) 949-1913 and we’ll confirm scope for your street.
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 Highgrove Customers Say
"The kitchenette layout he suggested made better use of the space than the one on our original sketch."
— Beatriz Garcia"Detached unit in the back yard. Utilities trenched, separate meter, and it passed final on the first inspection."
— Reggie Ellison"Knew the local setback and parking rules cold, which saved us from designing something that would never have been approved."
— Doug Padgett