Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Highland
Finding a General Contractor who understands Highland’s foothill terrain, WUI building codes, and 1960s-70s housing stock is the difference between a smooth project and a stalled one. We’re Toolbox Contractors, and we’ve worked on enough properties from the flatter east side of Highland up into the foothill lots off Base Line Road to know what inspectors here look for before you even pull the first permit. One contractor, every phase, from the kitchen cabinets to the roof. Call Norm and the team at (855) 382-3257 for a free estimate that reflects Highland’s actual building conditions, not a generic template.
Why Toolbox Contractors Is Highland’s Preferred General Contractor Company
Highland homeowners deal with a particular set of conditions that flatland crews in Redlands or San Bernardino rarely see. We plan for those conditions from the first walkthrough. When we scope a remodel on a 1960s tract home near Palm Avenue, we’re already thinking about whether the existing stucco-over-wood-frame walls will trigger a WUI review for new exterior penetrations. When we quote an addition on a foothill lot above Greenspot Road, we factor in slope, drainage, and retaining-wall requirements before you sign anything. That local fluency has made us the contractor Highland residents call when they want the job done once.
Our reputation in the 92346 ZIP is built on showing up when we say we will, keeping job sites clean on narrow streets, and handing you a written line-item quote that holds. We pull permits, pass inspections, and document everything so you know exactly what changed and why. No vague allowances, no vanishing subcontractors.
Styles & brands we work with







Construction Company in Highland
As a Construction Company in Highland, we handle what city inspectors and hillside terrain throw at us. A construction project here rarely stays simple: a basic room addition off the back of a mid-century home can turn into a drainage correction, a retaining-wall rebuild, and a WUI-compliant exterior detail package. That’s the reality of building on the San Bernardino Mountain foothills, and we plan for it in the first scope, not the first change order.
Room Additions and Structural Work
A home addition in Highland runs $45,000 to $130,000 depending on whether you’re extending off a slab-on-grade tract home near the 210 corridor or cutting into a descending lot that needs new footings pinned for seismic. We engineer the addition to meet both the city’s WUI exterior requirements and seismic standards tied to the San Andreas system. One contract, one accountability point.
Garage Conversions and Detached Shops
Highland has a lot of detached garages and older shop buildings, which makes garage conversions a practical way to add living space without changing the roofline. Expect $30,000 to $80,000 for a proper conversion that includes insulation, electrical, egress, and the WUI venting details inspectors here require. We coordinate the whole build, from structural upgrades to finish plumbing and drywall.
Remodeling Contractor in Highland
As a Remodeling Contractor in Highland, we see the same house dozens of times: original stucco, aging roof, kitchen closed off from the living area, bathrooms with the original cast-iron drains. Remodeling in Highland means respecting what’s already there, then upgrading it in a way that meets current code without fighting the bones of the house. A kitchen remodel here runs $14,000 to $45,000; a bathroom remodel runs $9,000 to $28,000.
Kitchen Remodels for 1960s and 70s Tract Homes
Opening a load-bearing wall in a Highland tract kitchen means serious structural work. We plan the beam, the post, the footing, and the WUI implications of any new range hood or exterior vent before demolition starts. You choose from vetted cabinet and countertop brands, and we make sure the permit set reflects what will actually be installed.
Bathroom Upgrades and Drain Replacements
Older Highland homes often need more than a fixture swap. We routinely replace failing cast-iron drain lines and rebuild shower pans with Schluter waterproofing systems while we’re in there. That’s the kind of scope a single-trade handyman won’t touch, but a full General Contractor team handles without blinking.
Trusted Brands We Service in Highland
Highland customers get access to a curated portfolio of 50+ material brands, not whatever’s left at a big-box shelf. We install countertops from Cambria, Silestone, and Caesarstone, cabinetry from KraftMaid and Wellborn, and when a Highland landscape needs retaining walls or pavers, we build with Belgard, Unilock, Techo-Bloc, and structural products from Quikrete and Sakrete. For the growing ADU market up and down the foothills, our partnerships with Abodu and other prefab manufacturers mean we can deliver a permitted ADU without a two-year construction timeline. We know which materials pass WUI exterior review, and we spec accordingly from day one.
Common General Contractor Problems We See in Highland Homes
- WUI code surprises after rough-in: A homeowner picks a standard stucco patch and vent detail, then inspection fails because the exterior assembly doesn’t meet ember-resistant standards. We spec WUI-compliant materials before rough-in so the final sign-off isn’t a fight.
- Access constraints on narrow foothill lots: Concrete trucks and material deliveries don’t always fit up a steep or narrow driveway off Greenspot. We stage materials lower and shuttle with smaller equipment, which keeps the schedule moving without blocking the neighbor’s access.
- Shared-wall and easement issues: On tight lots along the older east side, a party wall or shared driveway easement can stall a project if it’s not handled properly. We document written notices and coordinate with the adjacent owner before work starts.
- Slope drainage failures after the first winter storm: A compaction miss on a graded pad shows up as a small retaining-wall crack in year one. We over-engineer drainage and compaction on foothill lots specifically, because a Highland winter storm is when the hillside decides whether it likes your work.
See the difference
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AfterPricing for General Contractor in Highland, CA
Highland pricing is shaped by the building code, the terrain, and the age of the house. Here are line-item ranges we consistently quote across the 92346 ZIP:
| Project Type | Typical Highland Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
| Garage Conversion | $30,000 – $80,000 |
What moves the price: whether the lot requires retaining-wall work, whether the exterior scope triggers WUI material upgrades, and whether we’re working around a shared-wall condition. Call (855) 382-3257 and we’ll walk the property, pull the permit history, and give you a written estimate tailored to this exact Highland site.
We Also Serve Cities Near Highland
Toolbox Contractors works throughout the Inland Empire foothills and valley. From Highland we serve San Bernardino, Muscoy, Redlands, and Loma Linda. If you’re on the edge of the 92346 ZIP or just over the city line, call us and we’ll confirm coverage and scheduling for your street.
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 General Contractor in Highland
Highland sits in a wildland-urban-interface zone at the base of the San Bernardino Mountains, so any exterior work, new vents, siding, roof assemblies, or additions has to meet ember-resistant material standards and defensible-space requirements that flatland cities don’t enforce. That often means upgraded vent mesh, non-combustible exterior details, and roofing systems we’re certified to install from GAF, CertainTeed, and Owens Corning. We build those requirements into the initial scope so you don’t get a surprise change order after rough-in. Call (855) 382-3257 to get a permit-ready estimate.
A room addition in Highland requires a building permit, and depending on the scope, additional review for grading, drainage, seismic standards, and WUI exterior compliance. We pull all permits, coordinate the inspections, and schedule the sign-offs so you don’t have to chase the building department. Estimates are free, and we’ll tell you exactly what the permit path looks like for your property.
Yes, and we do it often. We maintain clean, organized staging on the narrowest Highland lots and follow written party-wall notice procedures when we’re working on a shared condition. Our field team has managed tight jobs off Base Line Road where every bit of material had to be staged on a neighbor’s easement by written agreement. We’ll handle the communication, the access plan, and the daily cleanup.
We use written line-item quotes and fixed pricing with no change orders unless you change the scope or the building reveals a hidden condition like termite-damaged framing. When a legitimate change comes up, we document it in writing, price it at the same rates as the original bid, and get your sign-off before we proceed. You’ll never get an invoice for work you didn’t approve. Call us for a quote that spells out exactly what’s included.
ADU construction in Highland runs $90,000 to $220,000 depending on whether it’s a garage conversion, a stick-built detached unit, or a prefab structure from a partner like Abodu. The Highland market skews toward detached units on larger foothill lots, which involves grading, utilities, and WUI exterior work that flatland ADUs don’t need. Call (855) 382-3257 and we’ll price your specific lot and site conditions.
Contact Toolbox Contractors for Your Highland Project
You don’t need five contractors for one house. You need one team that can handle the kitchen, the roof, the addition, and the retaining wall without passing blame around. We’re that team. Call Norm Castellano and the Toolbox Contractors crew at (855) 382-3257 to schedule your free estimate in Highland, CA. We’ll walk the site, talk permits, and give you a written number that matches what Highland’s building environment actually requires.
Written by Norm Castellano, Owner at Toolbox Contractors, serving Highland since day one.