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 how a hillside lot, county permitting, and fire-zone rules change a construction job is not easy. Most contractors in the flat inland cities quote Mentone projects the same way they quote Redlands or Highland, and that is where the trouble starts. We scope every Mentone job from the site conditions up, not from a spreadsheet. Iron Beam Contractors has been building in the 92359 corridor long enough to know that what is under the ground here matters just as much as what goes on top of it. Call us at (833) 756-5936 for a free estimate on your project.
Why Iron Beam Contractors Is Mentone’s Preferred General Contractor Company
Our reputation in Mentone is built on a simple thing: we show up with a plan that accounts for the conditions you actually have, not the conditions a flat-lot contractor assumes you have. Homeowners in the Crafton Hills and along Mill Creek refer us to their neighbors because our quotes hold. We walk the site, probe for buried citrus infrastructure, review county permitting requirements, and only then put a number in front of you. That process takes longer up front. It also means the excavator does not find a surprise irrigation main after you have signed a contract.
Nolan Driscoll, our owner, set the standard early: if a site has a complication that will change the price, you will hear about it before the quote, not after. That is why Mentone customers keep calling us back for additions, shops, ADUs, and full remodels. We are the General Contractor team that treats your property like a site, not a line item.
When you call, a real person answers. We schedule site walks in Mentone within days, not weeks. And because we work across the full scope from foundations to roofing, we do not hand you off to a parade of subs who have never seen your driveway.
Styles & brands we work with







General Contractor Services in Mentone
General Contractor Services in Mentone means something different than it does down the hill. In Redlands or Yucaipa, a room addition usually starts with a call to the city, a simple permit, and a flat pad. In Mentone, a room addition often means county permitting, septic and well setback reviews, Cal Fire high-severity fire zone compliance, and a property with enough slope that grading and drainage have to be engineered before the first footing goes in. A home addition in Mentone runs $45,000 to $130,000 depending on those conditions. A detached ADU runs $90,000 to $220,000, and a garage conversion typically falls between $30,000 and $80,000.
Additions and ADUs on Acreage
When you add square footage above Mentone, the site grading is often the largest unquoted variable. We carry a laser level on every site walk. If your pad needs a retaining wall, a swale, or over-excavation of old grove debris, that gets priced in the first quote, not a change order later.

Structural Remediation on Older Mentone Homes
Mentone’s housing stock ranges from early-1900s citrus-era farmhouses to 1950s and 70s ranch homes on large lots. Many of those older wood-frame structures need foundation and seismic retrofits before any cosmetic remodel makes sense. We inspect the post and beam framing, the mudsill, and the drainage around the foundation before we ever discuss cabinets, countertops, or Silestone repair in Mentone.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Construction Company in Mentone
A Construction Company working in Mentone has to be prepared for the terrain, not just the trade. Steep topography in the Crafton Hills watershed, narrow or unpaved acreage driveways, and winter storm drainage on sloped lots all shape how a job gets built. If you are planning a paver driveway, plan on $7,000 to $18,000. A concrete driveway runs $4,500 to $12,000. A full roof replacement on a Mentone home runs $8,000 to $20,000, and that price moves with the slope, the roof pitch, and the access path for materials.
Driveways and Grading
On an open lot above the 10 freeway, the driveway is not just a flat slab. It is a drainage feature. We grade for sheet flow, compact to 95% standard proctor, and call out where a culvert or retaining curb is needed before the pour. If your existing driveway was laid over old citrus grove piping, it may be settling at a crack line. That is a removal and re-compaction job, not a patch job.
Mentone-Wide Service Area
We work throughout Mentone, from the older streets near Mentone Boulevard up through the hillside parcels off Crafton and Mill Creek Road. Our crews know the county rules, the fire-zone requirements, and the haul roads. We stage materials where the county allows and where the access actually works. No driver gets sent up a driveway he cannot turn around in.
Trusted Brands We Service in Mentone
Because we are authorized to work with brands like Belgard, Jerith, Bufftech, and ActiveYards, we can spec hardscape and fencing systems that hold up to Mentone’s hot, dry summers and Santa Ana wind events. Belgard pavers get called for on fire-zone properties because of the way they handle heat and erosion. Jerith and Bufftech aluminum fencing is specified repeatedly on acreage parcels where a wood fence would be a maintenance liability. We stock common repair parts for these systems locally, so turnaround on a Mentone fence or paver issue is measured in days, not months. You are not chasing a website to order a replacement post.
See the difference
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After
Before
After
Before
AfterCommon General Contractor Problems We See in Mentone Homes
- Buried citrus infrastructure under planned foundations. Old orange-grove irrigation piping and root systems from the pre-development era sit under a surprising number of Mentone driveways and patio areas. If you do not over-excavate and remove it, you get differential settlement and a cracked slab.
- Quoting city-permit rules for a county-permitted job. Mentone is unincorporated San Bernardino County. A contractor who treats it like a city-permitted job misses septic and well setback reviews, and that stalls a build for weeks or months.
- Fire-zone material substitutions. The Crafton Hills and Mill Creek corridor fall under Cal Fire’s high-severity fire zone rules. Ember-resistant vents, ignition-resistant siding, and Class A roofing are not optional upgrades here. A contractor who subs in standard materials at a “better price” is setting you up for a failed inspection.
- Under-scoped grading and drainage. Winter storms hit sloped Mentone lots hard. If the grading line is not part of the original scope, you get erosion channels through your new patio and water at the foundation. We include drainage in every site plan before we quote.
Pricing for General Contractor in Mentone, CA
Pricing in Mentone is driven by what is under the ground, what the county requires, and how steep your access is. A flat-lot addition quote from a Redlands contractor may come in low, but it will not include the over-excavation of remnant citrus root systems or the county well and septic setback review. Those are not optional. Here are the market ranges we quote in Mentone:
| Project | Mentone Market Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Concrete Driveway Installation | $4,500 – $12,000 |
| Paver Driveway Installation | $7,000 – $18,000 |
| Roof Replacement | $8,000 – $20,000 |
If you are on a hillside parcel above Crafton, expect the upper end of these ranges. If you are on a level street-lot on the west side of Sand Canyon, expect the lower end. Either way, we will walk your site and give you a written line-item quote before you commit. Call (833) 756-5936 to schedule your free estimate.
We Also Serve Cities Near Mentone
Our Mentone crew takes projects in the surrounding communities, so if you have family in Mentone or work across the hill, we are already in your area. We serve Redlands, Yucaipa, Highland, and Calimesa with the same site-walk-first process we use on every Mentone project.
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
A Mentone addition costs more to scope because of county permitting, well and septic setback reviews, Cal Fire high-severity fire zone rules, and the real possibility of buried citrus infrastructure under your build site. These are site-specific conditions that a flat-lot contractor never has to account for. Our quote includes the site investigation and the compliance work from the first line. Call (833) 756-5936 for a scoped quote on your addition, not a ballpark you cannot hold us to.
We handle county permitting directly with San Bernardino County for every Crafton Hills project, including the fire-zone plan review and the septic and well setback checks. Your job is not fully quoted until we know what the county is going to require. If your project needs an ignition-resistant exterior assembly or a specific vent detail, that is in the scope before we pour concrete.
We start with a site walk, a topo check, and a utility review. The county well and septic setbacks often drive exactly where a detached shop or ADU can sit, and that drives the foundation and rough-in costs. We mark the buildable envelope, probe for old grove piping, and only then put a price on the structure. A detached ADU in Mentone runs $90,000 to $220,000 depending on the site and the finish level. Call us at (833) 756-5936 and we will tell you what your specific parcel can support.
Yes, routinely. On a sloped lot off the Mill Creek corridor, our crew found a buried citrus irrigation main and root mass directly under the proposed garage pad, so we brought in an excavator to strip and over-excavate the area before re-compacting and pouring footings. We also re-scoped the rough-in for the detached shop’s septic and well setbacks with the county before the slab went in, then walked the punch list with the owner at final inspection sign-off. This is not rare in Mentone. It is normal. If your contractor has not budgeted for it, you have a surprise cost coming.
We write a detailed scope of work with named material allowances, and we walk you through every allowance line before you sign. If a site condition changes the scope, like hitting buried debris or a grade change that requires a retaining wall, you get a written change order with a fixed price before any additional work happens. We do not hand you an open-ended invoice at the end. For an exact quote on your Mentone remodel, call (833) 756-5936. Estimates are free.
Written by Nolan Driscoll, Owner at Iron Beam Contractors, serving Mentone and the surrounding San Bernardino foothills.