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 Mentone
Finding a general contractor in Mentone who understands foothill construction is different from hiring one down in the flatlands. Our team works throughout the 92359 zip code on homes that sit against the San Bernardino Mountains, where wildland-interface rules, steep grades, and older housing stock shape every project. We’re Toolbox Contractors, led by Norm Castellano, and we handle kitchen remodels, bathroom overhauls, home additions, roofing, windows, and ADU construction with one contract and one point of accountability. If you’re planning work on a Mentone home, call (855) 382-3257 and we’ll walk the property with you before you commit to anything.
Why Toolbox Contractors Is Mentone’s Preferred General Contractor Company
Mentone homeowners call us because we price work the way these foothill lots actually require. A ranch-style home off Mentone Boulevard with a hand-built addition from the 1980s needs a different scope than a newer tract house in Redlands. We account for that before we quote, not after the walls are open. Our reputation across Mentone is built on written change orders, allowances for the surprises these older homes turn up, and inspections that pass because we already knew what the inspector would flag.
Norm Castellano runs every Mentone job the same way: walk the lot first, check the drainage, look at what prior owners built without permits, then write a scope that reflects reality. That’s why homeowners who’ve been burned by vague quotes end up staying with us through multiple projects. We carry the full-scope capability most single-trade remodelers don’t. Cabinets, countertops, roofing, windows, fencing, hardscape, ADU construction. One team.
Styles & brands we work with







Residential General Contractor in Mentone
Residential General Contractor work in Mentone means something specific. The housing stock here is a mix of older ranch-style homes, cabin-era builds, and 1970s-90s custom houses on large, uneven parcels. Many have had additions tacked on over decades. When a homeowner needs a kitchen gut or a bathroom overhaul, the job often starts with correcting what a previous owner did without permits. A kitchen remodel in Mentone typically runs $14,000 to $45,000 depending on what’s behind the drywall and what the hillside lot demands. A bathroom remodel runs $9,000 to $28,000.
Kitchen and Bath Work Built for Foothill Homes
We install KraftMaid and Wellborn cabinetry, Cambria or Caesarstone countertops, and Kohler or Moen fixtures, but the real work on a Mentone kitchen is what you don’t see. Sloping floors, undersized joists, outdated wiring, and plumbing that predates modern codes. We open the walls, assess the bones, and write allowances into the contract so you’re not blindsided.
Wildfire-Defensible Upgrades While the Walls Are Open
Mentone sits in a wildland-interface zone, which means brush clearance and ember-resistant detailing get written into inspection sign-offs. When we’re already inside a wall or under a roof, that’s the cheapest time to bring those items up to standard. Vents, eave details, deck undersides. We fold it into the scope instead of treating it as an afterthought.
Hire a General Contractor in Mentone
Hire a General Contractor in Mentone for work that touches structure, drainage, or code, not just finishes. This includes home additions, room additions, roof-plus-window combos, and ADU builds. A home addition in Mentone runs $45,000 to $130,000, and that spread exists because some lots have flat, buildable ground while others need retaining walls, slope stabilization, and foundation work before framing begins. We price that upfront.
ADU and Prefab Construction on Foothill Parcels
We build ADUs through partnerships with Abodu, Dvele, Boxabl, and Mighty Buildings. A detached ADU on a Mentone lot typically runs $90,000 to $220,000 once site work, utilities, and defensible-space requirements are included. Most flatland quotes don’t factor in the grading and drainage these hillside parcels demand.
Exterior Scope: Roof, Windows, Siding, Drainage
Because we’re a General Contractor with full interior-to-exterior scope, the same crew that remodels your kitchen can also replace the roof with a GAF or CertainTeed system, swap windows for PGT or CGI impact models, and repair slope drainage that winter runoff has been undermining. One contract for all of it.
Trusted Brands We Service in Mentone
We source from a curated portfolio of 50+ vetted manufacturers, which means a Mentone homeowner isn’t stuck picking finishes from a generic catalog. For hardscape and outdoor work on these large foothill lots, we work with Belgard, Unilock, and Techo-Bloc pavers. For concrete and structural repairs, we use Quikrete and Sakrete products. For prefab ADU builds, Abodu is one of our go-to partners. We stock common replacement parts for these systems so turnaround on warranty work across the 92359 area stays fast.
See the difference
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AfterCommon General Contractor Problems We See in Mentone Homes
- Unpermitted additions with spliced-in wiring. A recent kitchen remodel off Mentone Boulevard uncovered knob-and-tube wiring feeding a non-permitted sunroom. We stopped work, brought in the inspector, and wrote a change order before touching the cabinets.
- Failed or non-engineered retaining walls. Hillside lots with winter runoff put pressure on walls built decades ago without permits. A wall failing behind a planned addition changes the entire foundation scope.
- Slope drainage undercutting foundations. Water runs hard off the San Bernardino slopes during winter rains. If a downspout or swale was never installed, the soil under a foundation can erode before anyone notices.
- Wildfire defensibility items that stall sign-off. Brush clearance, ember-resistant vents, and non-combustible deck materials are inspection items in Mentone. If they’re not written into the scope, the final sign-off gets delayed.
Pricing for General Contractor in Mentone, CA
Here’s what we see for common scopes on Mentone homes. These are working ranges, not placeholders.
| Project Type | Typical Range in Mentone |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
What moves a Mentone quote is what’s behind the walls and under the ground, not the cabinet style. Unpermitted wiring, undersized joists, failed waterproofing, a retaining wall with no engineering. We write inspection allowances into every contract so the number you sign is the number you plan around. Call (855) 382-3257 for a free, written estimate on your specific property.
We Also Serve Cities Near Mentone
Our crews work throughout the San Bernardino foothills and valley. Alongside Mentone, we regularly take projects in Redlands, Yucaipa, Highland, and Calimesa. If you’re a few miles down the hill and want a contractor who already knows these older foothill homes, the number’s the same: (855) 382-3257.
Serving Mentone, CA — Our Local Coverage Area
We’re based in the Mentone 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 Mentone
We stop work, document what we found, and write a change order with a specific dollar amount and a specific scope before we do anything else. The contract already contains inspection allowances for the most common Mentone finds, so you’re not deciding from zero. On a ranch-style home off Mentone Boulevard, our crew found knob-and-tube wiring spliced into a non-permitted addition and a subfloor sistered with scrap lumber. We brought in the inspector, wrote the change order, and got the homeowner’s signed approval before hanging a single cabinet. Call (855) 382-3257 to talk through how we’d structure your project.
They can. If we’re opening exterior walls or touching a roof, deck, or vent, the inspector may require ember-resistant detailing or brush-clearance corrections at the same time. That’s actually when those upgrades are cheapest, since the wall cavity or eave is already exposed. We fold defensible-space items into the remodel scope so the final sign-off doesn’t stall. Call (855) 382-3257 and we’ll tell you what your specific lot needs.
The biggest risk is pricing the pretty finishes before you know what’s holding the addition up. Mentone’s large parcels have plenty of homeowner-built additions with undersized headers, non-engineered footings, and wiring that was never permitted. If you start with a flat quote and no allowance, the change orders stack up fast. We price the structural reality first. Call (855) 382-3257 for an estimate that accounts for what these hillside homes actually contain.
We walk the lot before we quote. Winter rain runs off the San Bernardino slopes and into these graded parcels, and if drainage isn’t part of the foundation plan, you’ll be chasing erosion later. We assess where water moves during a storm, check existing retaining walls, and write any needed swales, drains, or wall repairs into the addition scope. Call (855) 382-3257 and we’ll walk your property the same way.
Because Mentone homes turn up too many unknowns to run a project on a handshake. Unpermitted work, outdated wiring, hillside drainage, wildfire defensibility. A written scope with allowances means you see exactly what’s included, what could change, and what any change will cost before we proceed. Norm Castellano runs every job this way, from kitchens to ADUs. Call (855) 382-3257 for a free written estimate.
Written by Norm Castellano, Owner at Toolbox Contractors, serving Mentone and the surrounding foothill communities.