ADU Company in Highland, CA
Kitchen remodeling in Highland usually runs between $45,000 and $85,000 for a full gut renovation, depending on whether you’re updating a mid-century original or reconfiguring the footprint of a foothill home. Highland’s housing stock skews toward single-family homes built between the 1950s and 1970s, many with closed-off galley kitchens that predate open-concept living. The heat doesn’t help either. Kitchens here absorb the Inland Empire sun, and older homes rarely have the insulation or ventilation to keep a cook comfortable in July. We plan Highland remodels around that reality with layouts that improve airflow, materials that hold up to 105-degree afternoons, and ventilation upgrades that make the room usable year-round. If you’re weighing a kitchen remodel or an ADU addition, call Sapphire ADU Builders at (855) 594-0655 for a free estimate.
Why Highland Homes Are Different
Highland isn’t a flat, predictable grid like the valley floor of San Bernardino. The city rises into the foothills south of the 210, and that topography changes how we approach every job. Homes in the neighborhoods off Baseline Street and Boulder Avenue sit on larger lots than you’ll find in most of the Inland Empire, and a surprising number still have their original detached garages. That’s an opportunity for ADU conversions, but it’s also a trap for contractors who don’t know the hills. A garage built into a slope in 1962 wasn’t graded or drained to modern standards, and converting it means addressing retaining walls, pier work, or drainage before the first wall goes up.
The climate is the other factor. Highland regularly tops 100 degrees between June and September. For ADUs, that means insulation and cooling aren’t afterthoughts; they’re the difference between a unit that rents and one that sits empty. For kitchens and bathrooms, it means ventilation matters more here than in coastal cities. And because so much of the housing stock is mid-century, we’re often working with original plumbing, knob-and-tube wiring remnants, and floor plans that were built for a different era. Highland homes reward contractors who plan for those realities instead of discovering them mid-project.
Our Main Highland Services
Most Highland homeowners call us about two things: building an ADU on a lot that has room for one, or remodeling a bathroom in a home that hasn’t been touched since the Johnson administration. Here’s what each looks like in this city.
ADU Builders in Highland
Highland’s generous lots and detached garages make it one of the better ADU markets in San Bernardino County, but the foothill terrain adds grading and drainage costs that flatland cities don’t face. We’ve built and converted ADUs across the 92346 zip code, from flat mid-century tracts to sloped Boulder Avenue lots that needed pier-and-beam foundations. Because we carry six prefab brands plus full site-built capability, we can match the build method to your actual lot conditions rather than forcing one product onto a site it doesn’t fit. See the full scope at ADU Builders in Highland.
Bathroom Remodeling in Highland
Most Highland bathrooms we remodel are original to the home, which means cast-iron drain lines, undersized exhaust fans, and tile that’s been holding on since the Nixon years. The dry heat actually helps here; mold and moisture problems are less aggressive than in coastal markets, but the lack of ventilation still traps humidity. We rebuild Highland bathrooms with proper fans, waterproofing, and layouts that work for multi-generational households, which are common in this city. For the full scope of what we do, visit Bathroom Remodeling in Highland.
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
A full kitchen remodel in Highland typically costs $45,000 to $85,000 depending on cabinet quality, layout changes, and how much of the original plumbing and electrical needs replacing. Many Highland kitchens are original mid-century builds: compact, closed off from the living room, and framed by load-bearing walls that weren’t designed for an island. The heat compounds the problem. In summer, a poorly ventilated kitchen becomes the hottest room in the house, which is why we plan for range hoods that actually exhaust outside and layouts that catch the afternoon breeze when windows open. As a specialist that also handles complete ADU delivery, we bring the full-scope capability of our Kitchen Remodeling team to every Highland project, from demolition to final paint.
Full Kitchen Renovation
Signs you need it
Your kitchen has the original 1960s layout, the cabinets are delaminating, the electrical can’t support modern appliances, or you’re banging your hip on the same corner cabinet every morning.
What it costs in Highland
A full down-to-the-studs renovation in Highland runs $55,000 to $85,000, with projects in the foothills trending toward the top of that range due to older framing and electrical that needs bringing up to code.
How we do it
We demo to the studs, move or remove the walls that are safe to change, rewire and replumb to current code, then rebuild with new cabinets, countertops, flooring, lighting, and the ventilation upgrade your kitchen needs for 100-degree summers.
Cabinet Refacing and Countertop Replacement
Signs you need it
Your cabinet boxes are solid wood and still square, but the doors are worn, the finish is chipped, and the countertops are original laminate that’s peeling at the seams.
What it costs in Highland
Cabinet refacing with new doors, hardware, and a quartz or granite countertop typically lands between $18,000 and $35,000 in Highland, which is less than half of a full renovation when the layout already works.
How we do it
We keep the cabinet boxes in place, replace all doors and drawer fronts, swap the hardware, install the new countertop, and add a tile backsplash if the wall condition allows, finishing in a fraction of the time a full renovation takes.
What Kitchen Remodeling Costs in Highland
| Item | Typical range in Highland |
|---|---|
| Cabinet refacing and new countertops | $18,000 – $35,000 |
| Full kitchen renovation with layout changes | $55,000 – $85,000 |
| Kitchen remodel as part of a complete ADU build | $25,000 – $45,000 |
How long does a full kitchen remodel take in Highland?
Most full Highland kitchen renovations take six to ten weeks from demo to final walkthrough. Foothill homes with unexpected structural issues or older electrical can add a week or two. We’ll give you a schedule before we start, and we stick to it. Call (855) 594-0655 for a timeline on your specific kitchen.
Will the price change once the project starts?
Only if you change the scope. We write line-item quotes, not vague estimates, so you know what every dollar is buying before demo day. If we open a wall and find something surprising, we stop, show you, and agree on the fix before spending a cent. Call (855) 594-0655 for a fixed quote.
Brands We Service in Highland
We’re authorized to build and install ADUs from Abodu, Cover, and Dvele, and we match the brand to the lot, not the other way around. If your Highland property has a steep grade or an unusual setback, one of these prefab systems may save you months compared to site-built construction. Browse our brands to see what each one offers.
Pricing for ADU Company in Highland, CA
| Service | Typical range in Highland |
|---|---|
| Full kitchen renovation | $55,000 – $85,000 |
| Cabinet refacing and countertop replacement | $18,000 – $35,000 |
| Bathroom remodel (mid-size, full update) | $25,000 – $50,000 |
| Prefab ADU (one-bedroom, standard lot) | $150,000 – $250,000 |
| Site-built ADU (one-bedroom) | $200,000 – $300,000 |
| Site-built ADU (two-bedroom, larger footprint) | $300,000 – $450,000+ |
| Garage conversion to ADU | $120,000 – $200,000+ |
| Kitchen as part of a complete ADU build | $25,000 – $45,000 |
Two things push prices up in Highland more than anywhere else in the county: the hillside grading and drainage work required on sloped lots, and the age of the original electrical and plumbing in mid-century homes. We quote fixed prices before work starts, and we don’t hit you with change orders when the hill throws a curveball; we plan for it.
Neighborhoods We Serve in Highland
We work throughout the 92346 zip code, from the flatter tracts north of Baseline to the foothill neighborhoods south of the 210. Most of our Highland projects are within a 15 to 20 minute drive from our Perris hub, which keeps scheduling tight and site visits frequent.
- East Highlands
- Boulder Avenue foothills
- Baseline corridor neighborhoods
- Highland Avenue area
- North of the 210 near San Bernardino line
Service Area – Cities Near Highland
We serve Highland and the surrounding San Bernardino Valley communities, including San Bernardino, CA just west of us, Muscoy, CA to the northwest, Redlands, CA to the east, and Loma Linda, CA just south of Redlands. If you’re anywhere in this stretch of the Inland Empire, the same crew that works Highland handles your project start to finish.
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
Yes. Sloped lots in the Boulder Avenue foothills often require retaining walls, pier-and-beam foundations, or swale drainage before ADU construction can start. We plan for these in the initial quote, which is why our Highland prices sometimes include line items you won’t see on flatland projects. Call (855) 594-0655 for a site-specific assessment.
Once your quote is approved and permits are in hand, we typically schedule the start within two to four weeks, depending on the season and our current Highland workload. Prefab ADU projects often start sooner because the unit is built off-site while we handle the foundation. Call (855) 594-0655 to check current availability.
Yes, we handle all permitting for every Highland project, including hillside grading approvals and any city of Highland plan checks. Permits are not an extra service we hand off to the homeowner; they’re part of the job from day one. Call (855) 594-0655 and we’ll explain exactly what your project needs.
If you’re planning a kitchen remodel, bathroom update, or ADU in Highland, call Sapphire ADU Builders at (855) 594-0655 for a free estimate and a straight answer about what it’ll cost.
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."
— Keisha Hampton"Detached unit in the back yard. Utilities trenched, separate meter, and it passed final on the first inspection."
— Maria Rodriguez"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."
— Marcus Boyd