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
Hiring a general contractor in Mentone means finding someone who understands the Crafton Hills, San Bernardino County permitting, and the difference between a 1960s ranch and a 2019 hillside build. We work across Mentone and the 92359 zip code with full accountability for every phase, from permits and footings to the final punch list. Most Mentone homeowners reach us at (866) 253-5808 before they have drawings, because the biggest early decision is whether the project needs county sign-off, HOA approval, or both. We help you sort that first.
Why Timberline Contractors Is Mentone’s Preferred General Contractor Company
Our reputation in Mentone comes from pulling county permits correctly and submitting HOA architectural packages before the first hammer swings. Homeowners in the newer hillside developments keep calling us back because we do not conflate the two approvals, a mistake that costs people their builder warranty. Nelson Fung, our owner, has built the company around that kind of order-of-operations discipline. We show up to Mentone with a written scope, a line-item quote, and a schedule that accounts for county inspection lead times in unincorporated areas.
Mentone clients tell us the same thing: they want one contractor accountable for the entire job, not a rotating cast of subs they never met. That is how we run projects here. The same crew lead walks your site from the day we set protection through the day we hand you the keys back. When a Mentone homeowner calls us about a remodel on a steep Crafton Hills lot, we already know the questions to ask about drainage, retaining, and wildfire clearances.
Styles & brands we work with







Remodeling Contractor in Mentone
A Remodeling Contractor in Mentone handles the interior changes that turn a builder-basic house into one that actually fits how you live. That typically means kitchens, bathrooms, flooring, and sometimes moving a wall or two. In Mentone, the first upgrades we see in newer homes are builder-grade kitchens and baths: flat-panel laminate cabinets, thin quartz-look counters, and vanities that already show wear. A kitchen remodel in Mentone runs $14,000 – $45,000, while a bathroom remodel lands at $9,000 – $28,000. Cabinet installation alone runs $4,000 – $13,000, and countertops add $2,000 – $6,500.
Kitchen and Bath Upgrades
Most Mentone homeowners start with the kitchen because it is the room that bothers them daily. We pull the builder cabinets, replace them with KraftMaid or Wellborn lines, and top them with Cambria or Silestone quartz. The difference is immediate, and it holds up under Mentone’s hot summer sun beating through the windows.
Bathrooms follow fast. We see a lot of tub-to-shower conversions in the hillside homes, especially where the master bath has a dated soaking tub that no one uses. A tub-to-shower conversion in Mentone runs $3,500 – $10,000. We build the Schluter waterproofing system into every shower so the substrate cannot fail behind the tile.
First-Upgrade Priorities
If you just closed on a new Mentone home and want to spend money where it counts, start with kitchens, primary baths, and any exterior surface the builder skimped on. Interior upgrades do not usually trigger HOA review unless they alter plumbing locations or exterior walls. Exterior changes, like roof color or window style, almost always do.
Licensed General Contractor in Mentone
A Licensed General Contractor in Mentone is the difference between a permitted project and a stop-work order. In unincorporated San Bernardino County, the county requires permits for most structural changes, additions, ADUs, and any work touching electrical, plumbing, or gas lines. We pull the permits ourselves, schedule the inspections, and keep the job moving through every sign-off. Home additions in Mentone run $45,000 – $130,000. Garage conversions sit at $30,000 – $80,000, and an ADU runs $90,000 – $220,000 depending on slope, utilities, and fire requirements.
Additions and ADUs
Mentone’s wide lots and older ranch parcels make additions and detached units more common here than in Redlands or Loma Linda. The terrain is the wildcard. A flat-lot addition is one thing; cutting into a decomposed granite slope is another. We engineer the footings, plan the drainage, and build the retaining where the county says it is needed. We also work with prefab ADU partners like Abodu and Plant Prefab, which can shorten the timeline on a buildable lot.
Exterior Envelope Work
Roofing, siding, windows, and doors all fall under our scope in Mentone. Given the wildland interface and Santa Ana winds, we recommend Class A roof assemblies from GAF, CertainTeed, or Owens Corning. We also install James Hardie fiber-cement siding, which performs far better than builder vinyl on exposed hillside elevations. A roof replacement in Mentone runs $8,000 – $20,000, and if you are upgrading windows, impact-rated or not, expect $4,500 – $15,000 for a full replacement package.
Trusted Brands We Service in Mentone
We bring the showroom to the project. For Mentone clients, that means you are choosing from real samples, not guessing from a brochure. On the plumbing side, we specify Kohler, Grohe, and Toto fixtures across every price tier. For roofing, we install GAF, CertainTeed, and Owens Corning systems and honor their manufacturer warranties through our installation standards. We stock common replacement parts and finish samples locally for fast turnaround on Mentone jobs, and we order directly from our brand partners so lead times do not sit on your schedule. Whether you want a Grohe shower system or a CertainTeed ridge vent detail, we know exactly how the material behaves after install.
See the difference
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AfterCommon General Contractor Problems We See in Mentone Homes
- Builder warranty voids from unpermitted work. A homeowner hires a handyman to relocate a sink or add a circuit, and the builder later refuses to cover a related failure. The warranty language is specific: modifications must be permitted and often HOA-approved.
- Decomposed granite settlement. Patios, retaining walls, and even small additions placed on Crafton Hills slopes without proper compaction or drainage begin to shift after the first heavy winter rain. One season is all it takes to show. Then the inspection fails, and the repair costs more than the original work.
- HOA stop-work orders on exterior changes. A roof color that was not submitted to the architectural committee, a window style that does not match the development’s guidelines. These stop jobs cold. In Mentone’s newer developments, HOA approval is separate from county permitting, and both must happen before work starts.
- Fire-mitigation oversights on remodels. Existing homes in the wildland interface often lack ember-resistant vents or Class A assemblies. When we open a wall or roof, we flag these and bring the structure into compliance without expanding your project scope unnecessarily.
Pricing for General Contractor in Mentone, CA
These are the real ranges we quote in Mentone right now.
| Project | Mentone Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
What moves the number is scope and site conditions. A kitchen with a load-bearing wall removal and a hillside drainage correction costs more than a finish-level refresh. We give you a line-item estimate before you sign anything, and the number does not move unless you change the scope. Call (866) 253-5808 for a free estimate, and we will walk the site, check the slope, and tell you what the county and HOA will require.
We Also Serve Cities Near Mentone
Our team runs projects in Mentone and across the neighboring communities, including Redlands, Yucaipa, Highland, and Calimesa. If your property sits near the Mentone boundary or spans two jurisdictions, we handle the jurisdictional overlap. Reach out at (866) 253-5808 and we will confirm coverage.
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
Only if the work is unpermitted or violates the warranty’s modification clause. Most builder warranties require that any structural, electrical, or plumbing change be done by a licensed contractor with county permits. Skipping that step is the fastest way to lose coverage. We pull permits and run every modification through the correct channels so your warranty stays intact where it matters. Call (866) 253-5808 before you touch anything.
Interior remodels that do not change exterior walls, windows, or rooflines usually need no HOA review beyond a courtesy notice. The moment you alter an exterior elevation, window style, or roof color, you need architectural committee approval. We submit the samples, drawings, and forms for you. Call (866) 253-5808 and we will tell you exactly what your development requires.
Most new-home owners in Mentone start with a kitchen remodel at $14,000 – $45,000 or a bathroom remodel at $9,000 – $28,000. If you want to stage it, cabinets first at $4,000 – $13,000, then counters at $2,000 – $6,500. That is the honest spread. Call (866) 253-5808 for a line-item estimate tied to your actual floor plan.
Yes. Unincorporated San Bernardino County requires permits for any detached structure, addition, or ADU, plus approvals for hillside grading and drainage. Some older Mentone parcels have septic systems that add a health department review. We handle the full permit package and inspection schedule. Call (866) 253-5808 to start.
New construction and major remodels in the wildland interface generally require a Class A roof assembly, ember-resistant vents, and defensible-space compliance. We install GAF, CertainTeed, and Owens Corning Class A systems and bring the venting up to current county fire standards. Call (866) 253-5808 and we will assess your existing roof and tell you what is actually required versus recommended.
If you are planning a remodel, addition, or full-scale renovation in Mentone, call (866) 253-5808 to schedule your free estimate. We will walk the property, explain the permitting and HOA path, and give you a written scope with real numbers.
Written by Nelson Fung, Owner at Timberline Contractors, serving Mentone and the surrounding Crafton Hills communities.