ADU Company in Highland, CA
Kitchen remodeling in Highland usually runs $125 – $200 per square foot for a full renovation, and the job often takes 6 – 10 weeks depending on how much structural work your 1960s ranch home needs. We’re Sunstone ADU Builders, and we’ve served Highland since 2011, handling kitchen remodels inside ADUs and primary homes across the 92346 ZIP code. If you’re weighing a kitchen update alongside a backyard unit, call (855) 949-1913 for a free estimate that breaks down every line item.
Why Highland Homes Are Different
Highland sits at the base of the San Bernardino Mountains, which means hot inland summers that regularly push past 100°F and Santa Ana winds that punish poorly installed roof attachments. ADUs and kitchen remodels here need insulation that actually performs, shaded window placement, and wind-rated hardware, or you’ll pay for it in July and again in October. The housing stock splits into two distinct eras: 1950s – 1970s ranch homes on half-acre lots in the foothill neighborhoods off Greenspot Road and Boulder Avenue, and tighter 1980s – 2000s subdivisions with smaller yards. A detached ADU makes sense on the east side where there’s room. A garage conversion often makes more sense on the west side. And in the older foothill areas, many properties still run on private wells or septic systems, which means an ADU permit can trigger mandatory water and sewer connection upgrades. Out-of-town builders miss that. We plan for it from the first site visit.
Our Main Highland Services
Most Highland homeowners call us about one of two projects: building a new ADU, or remodeling a bathroom that’s tied to the ADU or the main house. Here’s how each works locally.
ADU Builders in Highland
Highland’s large, horse-friendly lots give homeowners an option most Inland Empire cities don’t have: a detached ADU with room left over for horses, RVs, or both. We design and build detached units, garage conversions, and traditional stick-built structures, and we’re authorized to install prefab units from brands like Abodu and Plant Prefab. Every Highland ADU has to clear San Bernardino County permitting, and wells or septic systems on older foothill properties often complicate the scope. We handle that paperwork and those connections as part of the contract. ADU Builders in Highland covers the full process.

Bathroom Remodeling in Highland
A bathroom remodel in a Highland ADU has to be compact, moisture-resistant, and code-compliant for rental or multigenerational use, which is a different job than a primary bath refresh. We tie the bathroom into the ADU’s plumbing and ventilation from the start, and we finish it to the same standard as the rest of the structure so the unit is genuinely move-in ready. For primary homes in the older ranch neighborhoods, we also handle full bath remodels that fix decades of wear without disturbing the rest of the house. Bathroom Remodeling in Highland has the details.

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 Highland

Kitchen remodeling in Highland means working around 1950s – 1970s ranch layouts that weren’t built for modern appliances, open sightlines, or island seating. Many Highland kitchens we see have load-bearing walls in awkward places, undersized electrical panels, and original plumbing that needs replacement before any finish work starts. The Highland heat also matters: ventilation, window placement, and appliance heat output all affect how comfortable the kitchen is in August. We handle the full scope, from structural changes through cabinet installation to the final backsplash, so you’re not coordinating three contractors on a 60-year-old house. Learn more about our Kitchen Remodeling process.
Full Kitchen Gut and Rebuild
Signs you need it
Your cabinets are particleboard that’s swelling at the seams, the layout fights you every time you cook, and the floor has soft spots near the sink or dishwasher.
What it costs in Highland
A full gut-and-rebuild kitchen in Highland typically runs $50,000 – $85,000, with the higher end covering structural changes, custom cabinets, and high-end appliances.
How we do it
We demo to the studs, replace or reroute plumbing and electrical, adjust load-bearing walls if needed, install new drywall and insulation, then set cabinets, counters, appliances, and finishes.
Kitchen Refresh Without Moving Walls
Signs you need it
The layout actually works, but the cabinets are dated, the counters are scratched laminate, and the appliances are mismatched or failing one by one.
What it costs in Highland
A layout-preserving kitchen refresh in Highland generally falls between $15,000 and $35,000, depending on cabinet refacing versus replacement and countertop material.
How we do it
We keep the sink, range, and refrigerator where they are, then swap or reface cabinets, replace counters, update the backsplash and lighting, and install new appliances in the same footprints.
What Kitchen Remodeling Costs in Highland
| Item | Typical range in Highland |
|---|---|
| Full gut and rebuild | $50,000 – $85,000 |
| Layout-preserving refresh | $15,000 – $35,000 |
| Per square foot (full remodel) | $125 – $200 |
The biggest price drivers in Highland are structural changes to 1950s – 1970s ranch homes, which often hide outdated wiring and plumbing, plus any septic or well-related upgrades triggered by the permit. We give you a written, line-item quote before work starts, and we don’t change the price once the contract is signed.
How long does a kitchen remodel take in Highland?
Most Highland kitchen remodels take 6 – 10 weeks. Structural changes, electrical panel upgrades, and any well or septic work add time. We sequence everything in-house so you’re not waiting on a second contractor.
Do you handle the permits for a Highland kitchen remodel?
Yes. We pull every permit your Highland kitchen remodel needs, including electrical, plumbing, and structural permits, and we schedule the inspections. You get a kitchen that’s legal and ready for resale or rental. Call (855) 949-1913 for a quote.
Brands We Service in Highland
We work with prefab ADU brands including Abodu and Plant Prefab, traditional stick-built methods, and Tuff Shed-style structures. James Hardie fiber cement siding is standard on our Highland exteriors, standing up to Santa Ana winds and summer heat. See our brands for the full range.
Pricing for ADU Company in Highland, CA
| Service | Typical range in Highland |
|---|---|
| Kitchen remodel (full gut and rebuild) | $50,000 – $85,000 |
| Kitchen remodel (layout-preserving refresh) | $15,000 – $35,000 |
| Kitchen remodel (per square foot) | $125 – $200 |
| ADU construction (per square foot, traditional) | $250 – $400 |
| ADU construction (per square foot, prefab) | $200 – $300 |
| Bathroom remodel (basic refresh) | $8,000 – $15,000 |
| Bathroom remodel (mid-range) | $15,000 – $30,000 |
| Bathroom remodel (high-end) | $30,000 – $60,000+ |
Highland prices run higher on older foothill properties where wells, septic systems, or outdated electrical panels require upgrades before the visible work can start. Every quote we give is a fixed, written number based on a site visit, not a square-footage guess over the phone.
Neighborhoods We Serve in Highland
We work throughout Highland and the surrounding foothill communities, from the big-lot horse properties to the newer subdivisions. Our crews are familiar with the permit path in each area, so the job doesn’t stall at inspection.
- East Highlands and the neighborhoods off Greenspot Road
- Boulder Avenue corridor
- Highland Village and surrounding subdivisions
- Foothill areas near the San Bernardino National Forest boundary
- Western Highland near the San Bernardino line
Most Highland homeowners can get a free site visit and estimate within about a week of calling.
Service Area – Cities Near Highland
Sunstone ADU Builders also works in nearby Inland Empire communities. If you’re in San Bernardino, CA, Muscoy, CA, Redlands, CA, or Loma Linda, CA, we can help with ADUs and kitchen or bathroom remodels under the same single-contract model.
Serving Highland, CA — Our Local Coverage Area
We’re based in the Highland 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 Highland
Once the design and permit are approved, we typically mobilize within 2 – 4 weeks. Permitting through San Bernardino County can take longer on foothill properties with well or septic upgrades. Call (855) 949-1913 and we’ll give you an honest timeline after a site visit.
Some Highland HOAs, especially in the newer subdivisions, require architectural review for exterior ADU work and any changes visible from the street. We prepare submittal packages that meet those HOA requirements alongside the city and county permits.
We walk the property, measure the space, check the existing electrical and plumbing, and flag any Highland-specific issues like well or septic constraints. Then you get a written, line-item quote with no obligation. Call (855) 949-1913 to schedule.
Ready to plan your Highland kitchen remodel or ADU? Call Sunstone ADU Builders at (855) 949-1913 for a free estimate, and we’ll walk you through the options for your specific property.
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 Highland Customers Say
"Knew the local setback and parking rules cold, which saved us from designing something that would never have been approved."
— Doug Padgett"He was honest that our lot had a slope problem that would add real cost, before we signed anything."
— Paul Pruitt"The kitchenette layout he suggested made better use of the space than the one on our original sketch."
— Beatriz Garcia