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 Home Remodeling Across Mentone
Home remodeling in Mentone runs on a different set of rules than most of the Inland Empire. You’re not dealing with city hall here. You’re dealing with San Bernardino County planning, horse-zoning lot coverage, septic setbacks, and Cal Fire WUI material requirements. Most remodelers quote Mentone jobs like they’re quoting Redlands. That’s where budgets break. We scope every project from the parcel outward, because on a half-acre lot off Garnet Street or a hillside parcel above Highway 38, the site itself dictates what can be built and what it costs. Call (877) 688-9930 and we’ll walk your property before we ever put a number in front of you.

Why Square One Builders Is Mentone’s Preferred Home Remodeling Company
Square One Builders has built its reputation in Mentone on full-scope accountability. Homeowners here don’t need a cabinet installer and a separate roofer and a third guy for the driveway. They need one contractor who can pull a county permit, frame an addition, re-roof to Chapter 7A, and finish the kitchen without pointing fingers. That’s the Home Remodeling team we run: one contract, every trade, one accountable crew. Brent Calloway started this company to eliminate the exact coordination mess that Mentone’s rural parcels make worse. When your project has septic setbacks, horse-zoning coverage limits, and a winding dirt driveway that a concrete truck can’t navigate without a staging plan, you want the general contractor who has already solved those problems on Crafton Avenue, not one who’s about to learn on your budget.
We’re not a specialty trade pretending to be a general contractor. We coordinate structural work, roofing, windows, cabinetry, countertops, plumbing fixtures, hardscaping, and detached ADUs under one contract. For a homeowner in Mentone’s unincorporated foothills, that means one point of contact when the building inspector flags a vent, when the well setback forces a foundation shift, or when the county wants a revised grading plan. You don’t chase three trades. You call us. Your remodel, fully managed.
Our local reputation in Mentone comes from projects that passed county inspection the first time. We spec materials that meet WUI requirements because we know the Cal Fire map. We know which lots on the north side of Mentone hit defensible-space zones and which valley-floor parcels don’t. That local knowledge is the difference between a permit that clears in weeks and a plan that bounces back for redesign.
Styles & brands we work with







Full Home Remodel in Mentone
A Full Home Remodel in Mentone typically runs $45,000 to $130,000 when it involves structural changes, and it’s the right call when a mid-century ranch on a large lot needs more than cosmetic updates. Mentone’s housing stock runs heavily to 1950s through 1970s single-family homes, many with original electrical panels, galvanized plumbing, and layouts that waste space. A full remodel means we open walls, replace the old systems, and rebuild the floor plan around how you actually live on an acreage parcel. That often includes reworking the kitchen, both bathrooms, flooring, windows, and sometimes the roof or exterior siding in the same phase.
The cost difference between a Mentone full remodel and one in a tract-home city comes down to site conditions. Your parcel may need septic capacity verified before we add a bedroom. Your electrical panel may need a service upgrade before we can pull the permit for new appliances. We find these things during scoping, not after the drywall is up.
System Upgrades Behind the Walls
Older Mentone homes often carry outdated wiring and plumbing that won’t support a modern kitchen or a second bathroom. We replace panels, repipe supply lines, and bring everything to current county code while the walls are open. Doing it all at once is cheaper than doing it in phases.
Layout Changes on Acreage Lots
Ranch-style homes on wide lots can be re-planned more freely than tight city lots. We move kitchens, open load-bearing walls with engineered beams, and orient living space toward the mountains or the yard. The county cares about setbacks and coverage; within those limits, the layout is yours to shape.
Home Remodeling Contractor in Mentone
Hiring a Home Remodeling Contractor in Mentone means choosing between a specialist who handles one trade and a licensed general contractor who manages the whole scope. We’re the latter. For a Mentone homeowner, that matters because county permitting here is not a formality. An addition that touches a septic setback or a garage conversion that needs a hardened roof under WUI rules requires someone who understands the full picture. A kitchen remodel starts at $14,000 and can reach $45,000. A bathroom remodel runs $9,000 to $28,000. A garage conversion lands between $30,000 and $80,000 depending on whether the existing slab works or we’re pouring new foundation.
You don’t need to hire three separate contractors and then play project manager on weekends. You need one contract with defined scope, a draw schedule, and permits pulled before demo starts. That’s how we keep Mentone projects on schedule.
Permitting and County Coordination
We pull permits with San Bernardino County, schedule inspections, and handle plan revisions when the building department requires them. If your project sits in a WUI zone, we spec the materials Cal Fire requires and write them into the contract so there’s no surprise upgrade halfway through.
Septic, Well, and Setback Reality
Before we quote an addition or a detached ADU, we confirm where your septic tank, leach lines, and well sit. A bedroom addition too close to a lateral line doesn’t just need a redesign; it can force a new septic system. That’s a five-figure item most contractors never mention at the bid table.
Trusted Brands We Service in Mentone
We stock and install material lines that fit Mentone’s fire-resistance and durability requirements, not just what looks good in a showroom. Our roofing portfolio includes CertainTeed, Owens Corning, and IKO, which matters when your home sits in a WUI zone and the county requires Class A fire-rated assemblies. For exterior siding and trim on remodels where ember intrusion is a real risk, we spec materials from James Hardie and similar hardened-cladding lines. We don’t push one brand at one price. We give you a tiered quote: premium, mid-range, and value options within the same category, so you decide where to spend and where to save without switching contractors. We spec the right material for your project.

Common Home Remodeling Problems We See in Mentone Homes
Every town has its quirks. Mentone’s quirks hit harder because the lots are larger, the parcels are unincorporated, and the weather runs hot and dry with wind loads most contractors never account for. Here’s what we regularly correct or plan around:
- Undersized electrical panels from the 1950s and 60s. A full kitchen remodel with modern appliances almost always requires a panel upgrade from 100 amps to 200. We catch it during scoping and include it in the quote, not as a change order later.
- Failed permit reviews due to WUI material triggers. A deck or exterior remodel near the foothills can pull in Chapter 7A requirements for hardened roofing, ember-resistant vents, and specific siding assemblies. Contractors who don’t know the Cal Fire map get plans rejected and lose weeks.
- Septic and well setbacks that kill a floor plan. Adding a bedroom, converting a garage, or building a detached ADU on a horse-zoned parcel often shifts the footprint because of lateral lines or well clearance. We verify these before the first drawing goes to the county.
- Foundation and drainage issues on sloped foothill lots. Winter rains and seasonal runoff expose grading problems on hillside parcels. We scope drainage correction into remodels from day one, so a new addition doesn’t send water into the old crawlspace.
See the difference
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AfterPricing for Home Remodeling in Mentone, CA
Remodeling costs in Mentone reflect the parcel realities of an unincorporated foothill community, not a suburban tract. The table below shows our current market ranges for common project types. These are honest numbers based on recent scoped jobs in the 92359 area, not teaser pricing designed to get a signature.
| Project Type | Typical Mentone Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
What moves a Mentone project to the high end isn’t finish choice. It’s site work: new septic, a well setback redesign, a 200-amp service upgrade, or a concrete truck that needs a staging plan just to reach the pad. We carry those site costs into the estimate so your number is real on day one. Call (877) 688-9930 to schedule a free estimate on your property.
We Also Serve Cities Near Mentone
Our crews work Mentone and the surrounding foothill and valley communities every week. That includes Redlands and Yucaipa to the west, Highland to the northwest, and Calimesa to the east. If you’re on the edge of a zip code or straddling a county line, call us and we’ll confirm coverage. We know the permit offices and the fire maps across this whole stretch of San Bernardino County.
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 Home Remodeling in Mentone
Yes. Mentone is unincorporated San Bernardino County, so building permits, plan checks, and inspections go through county offices, not a city hall. Any structural change, addition, ADU, or garage conversion requires county approval, and horse-zoning lot coverage rules can limit your footprint. We handle the full permit package. Call (877) 688-9930 if you want us to check your parcel’s zoning before you design anything.
They determine where the new foundation can sit. County code requires minimum distances between structures and septic tanks, leach lines, and wells. On a half-acre lot, that can push an ADU 20 feet from where you wanted it, or force a new septic system if the existing one can’t support added bedrooms. We verify setbacks before we quote, so the number you sign is the number you pay.
It can. If your parcel falls within a Wildland-Urban Interface zone on the county’s fire-responsibility map, even a deck rebuild can trigger Chapter 7A requirements for fire-resistant materials, ember-resistant vents, and specific decking. We identify the trigger during scoping and build compliance into the estimate. Call (877) 688-9930 and we’ll check your address against the WUI map before you spend a dollar.
Sloped foothill lots need positive drainage away from the foundation, and the county reviews grading plans for any project that moves significant soil. We include swales, drains, and sometimes retaining walls in the base scope when the lot demands it. Expect grading to add $3,000 to $15,000 depending on slope and access. It’s far cheaper to plan it than to repair a crawlspace after the first winter rain.
We scope the site before we write the contract. That means checking septic and well locations, running a WUI map check, confirming panel capacity, and walking the access route for concrete and material deliveries. Then we write allowances and site costs into the fixed quote. You’ll still make finish selections that move price, but the structural surprises that wreck budgets get caught before demo. Call (877) 688-9930 for a free estimate and a scoping walk on your parcel.
From the Ground Up: Building on Mentone Acreage
Remodeling on an acreage lot in Mentone is a different skill set than tract-home renovation. Because Mentone is unincorporated San Bernardino County, a remodel that adds a bedroom or a detached ADU must go through county building and planning, not city hall. Your parcel’s horse-keeping zoning sets lot-coverage limits. Your septic tank and well establish setbacks that dictate where the new footprint can expand. Your long driveway may be too tight for a standard concrete truck. We scope all of that before we ever present a price. That’s the Square One approach: from the ground up, every system accounted for.
On a half-acre lot off Crafton Avenue, our crew converted a detached 1950s garage into a 600-square-foot ADU. We had to set the new foundation back from the existing septic tank and lateral lines, and the load-bearing wall between the old bays required a new beam and engineered shear walls before rough-in and inspection sign-off. The finished unit passed county inspections with a hardened roof and ember-resistant vents matching the WUI rules. That project is exactly what most generic remodeling companies in Mentone never prepare for.
We also plan for material hauls on rural driveways. A concrete truck needs 28 feet of turning room and stable ground. An excavator can’t squeeze through a horse gate. If your parcel has access issues, we stage materials at the road and shuttle in. That’s a line item, but it’s cheaper than a truck stuck in your yard or a broken septic line from driving the wrong route. One contractor, every system, from the first site walk to the final inspection.
Written by Brent Calloway, Owner at Square One Builders, serving Mentone and the eastern Inland Empire from the ground up.