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 county permitting, WUI fire rules, and rural lot realities is not the same as hiring someone from the flatlands of Redlands. We’re Square One Builders, and we’ve spent years managing full-scope remodels and additions on Mentone properties, from mid-century ranch homes off Mentone Boulevard to horse-zoned parcels along Crafton Avenue. The work here requires a different kind of planning: septic setbacks, defensible-space requirements, longer material hauls, and county inspections all shape how a project gets scoped and priced. If you’re planning a remodel or addition and want one accountable team handling every system, call (877) 688-9930 and we’ll walk you through what your property actually needs.

Why Square One Builders Is Mentone’s Preferred General Contractor Company
Our General Contractor team has worked on enough Mentone properties to know what the county will flag before we ever submit a plan. Brent Calloway, our lead, has guided projects through San Bernardino County’s site plan review, septic approvals, and Cal Fire Chapter 7A compliance checks, which means the quote we give you reflects the real requirements, not a best-case scenario. Homeowners in the 92359 ZIP tell us that’s the difference they feel in the first meeting.
When you call us for a project in Mentone, you get a contractor who has coordinated material deliveries up long unpaved driveways and scheduled county inspections that many city-based outfits don’t even know exist. We do not guess at what a hillside lot or an aging septic system will require; we verify it during scoping so your quote holds. That’s the kind of certainty people moving from a kitchen remodel into a full home addition want from the start.
Styles & brands we work with







Remodeling Contractor in Mentone
As a Remodeling Contractor serving Mentone, we handle the part of the job that most overwhelms homeowners: keeping structural, interior, and exterior work moving as one coordinated build rather than a string of disconnected trade visits. A kitchen remodel in Mentone typically runs $14,000 to $45,000, while a bathroom remodel lands between $9,000 and $28,000. What changes the number most on acreage is what we find behind the walls: original plumbing from the 1960s, undersized electrical panels, or framing that needs adjustments before new finishes go in.
Whole-Home Remodel Planning
A whole-home update in Mentone stretches across roofing, windows, siding, kitchens, baths, and often exterior structures. Because we source from 50+ material brands and coordinate every trade under one contract, you are not chasing a roofer who blames the window installer who blames the electrician. We spec the right material for each system and schedule work in the order that keeps the project moving through county inspections without dead weeks.
Kitchen and Bath Scope
For a small kitchen remodel, Mentone homeowners should plan on $9,000 to $20,000. Countertops alone run $2,000 to $6,500 depending on the surface. We’ll help you compare Cambria and Silestone at different price points, wire the new island correctly, and make sure the plumbing rough-in passes county inspection before we close up a single wall. That sequencing matters, especially in older Mentone homes where original galvanized supply lines and cast-iron drains are common.
Licensed General Contractor in Mentone
Hiring a Licensed General Contractor in Mentone means hiring someone who can pull the right permits, schedule county inspections, and stand behind the work. A lot of local remodel work we see happens because an unlicensed handyman cut corners and the homeowner inherited the problem. We work as the accountable party on the permit: San Bernardino County records our contract, our scope, and our pull, so if something goes sideways, the pathway to resolution is clear.
Additions and Detached Structures
A home addition in Mentone runs $45,000 to $130,000, and the county review alone adds weeks that city departments in Redlands or Highland do not have. We build that timeline into our schedule and keep you informed at each inspection milestone. For a detached shop or ADU, the cost range is $90,000 to $220,000, with septic and well setbacks often dictating where the structure can actually sit on the lot.
Garage Conversions
Garage conversions in Mentone run $30,000 to $80,000. What matters locally is whether the garage sits within the required distance from a septic leach field or well head. County rules changed the math for more than one homeowner we’ve worked with, and we flag these checks before you spend money on plans. It’s the kind of thing that turns an exciting project into a costly mistake when nobody catches it early.

Trusted Brands We Service in Mentone
We install and service materials from roof systems by GAF, CertainTeed, and Owens Corning, plus IKO where the project calls for it. That matters in Mentone because wildfire-resistant and wind-rated products are not optional here; in the WUI zones, the county and your insurance company both care what product goes on your roof and deck. We keep our supplier relationships tight so Mentone homeowners get realistic lead times and correct installation, not a cheaper panel that fails the Chapter 7A review. We spec the right material for the job and install it to the manufacturer’s standard, because a roof in the foothills has to survive Santa Ana wind uplift and ember exposure, not just look good from the street.
See the difference
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After
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After
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AfterCommon General Contractor Problems We See in Mentone Homes
- Septic setbacks quietly kill site plans. A detached ADU or shop looks fine on paper until the county flags the leach field distance. We verify setbacks before quoting, so the design you approve actually has a place to be built.
- Long unpaved driveways inflate delivery costs. Material haul on dirt or gravel access roads means larger trucks, more trips, and sometimes a transfer to a smaller vehicle. We scope access up front and price it into the quote instead of surprising you with a change order.
- WUI requirements escalate deck and addition scopes. A simple backyard deck rebuild in the foothills can trigger ignition-resistant decking, vent, and siding rules under Cal Fire Chapter 7A. We separate fire-hardening from structural work so you can phase the project intentionally.
- Older electrical panels can’t support new loads. Many 1950s-to-1970s Mentone homes have original 100-amp panels, which cannot handle a modern kitchen or an ADU. We identify panel upgrades during scoping and include them in the base quote, not as a mid-project surprise.
Pricing for General Contractor in Mentone, CA
Pricing a project in Mentone depends on scope, site conditions, and county requirements. Below are the market-calibrated ranges for common projects in the 92359 ZIP:
| Project Type | Mentone Price Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
Septic and well setbacks, unpaved access, and WUI fire requirements all shift the final number. We give you a written line-item quote that separates labor, materials, and county fees, so you know exactly what you’re paying for. Call (877) 688-9930 to schedule a free estimate for your Mentone project.
We Also Serve Cities Near Mentone
Beyond Mentone, our General Contractor in Mentone team works regularly in Redlands, Yucaipa, Highland, and Calimesa. While county permitting applies widely across the unincorporated areas, each community has its own character and building patterns, and we scope each property on its own terms.
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
Yes. Mentone is unincorporated, so every building permit, septic approval, and well setback is handled by San Bernardino County rather than a city building department. A detached ADU or shop requires site plan review, septic clearance, and structural permits. Call (877) 688-9930 and we can tell you which approvals your specific lot will trigger.
San Bernardino County enforces minimum distances between structures and septic leach fields, septic tanks, and wells. If your proposed addition or shop sits too close, the county rejects the site plan, forcing a redesign. We verify setbacks during the initial walkthrough so your quote reflects a buildable plan from day one.
In wildfire-prone foothill areas, San Bernardino County enforces Cal Fire Chapter 7A requirements, which may include ignition-resistant decking, ember-resistant vents, and hardened siding. A simple deck rebuild can trigger upgrades that affect the roof and adjacent walls. We identify which fire-hardening items your project includes before quoting, so you can phase the work without surprise change orders.
Long haul distances from major supply yards and unpaved access roads both increase delivery costs and sometimes require smaller trucks or material transfer. We assess access during scoping and include the correct logistics line in your quote, rather than adding it as an overage after work begins.
A scope of work, a line-item budget, a permit plan, and a schedule with inspection milestones should all be in writing before any demolition begins. We also document any site-specific items like septic setbacks, WUI material requirements, and access constraints so there’s a record of what was agreed. Call (877) 688-9930 to start with a free, written estimate for your Mentone project.
Written by Brent Calloway, Owner at Square One Builders, serving Mentone and the surrounding communities.