







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable General Contractor Across Oak Hills
If you’re planning a kitchen remodel, room addition, or garage conversion in Oak Hills, the single most important decision you’ll make is choosing a general contractor who understands unincorporated San Bernardino County building rules. At Mason Remodeling, we’ve watched homeowners lose weeks to septic setbacks and well-clearance red tags because their contractor bid the job without checking county Environmental Health requirements first. Our job is to scope the work correctly before the first permit is pulled, put every allowance in writing, and deliver a price you can hold us to for 365 days. Call (803) 680-2547 to schedule your free estimate in Oak Hills.
Why Mason Remodeling Is Oak Hills’s Preferred General Contractor Company

Oak Hills homeowners don’t want a contractor who discovers the project halfway through. They want someone who knows that a load-bearing wall on a wide desert lot means long header spans and structural engineering, and that every ADU and room addition triggers San Bernardino County Environmental Health review for septic and well clearances. Our reputation in Oak Hills is built on written prices delivered before any work starts, not verbal walkthrough numbers that grow by the week. When an Oak Hills homeowner calls, a live person answers, 24 hours a day.
We’re part of the General Contractor team at Mason Remodeling, founded in 2004 within the Threshold Group family of home-service companies. Every crew member who arrives at an Oak Hills property is identity-verified, background-checked, uniformed, and introduced to you by name and photo before the visit, under the Threshold Standard. You’ll see a photo ID badge at the door. No mystery subs, no unverified labor. Isaac Pruett leads the team that coordinates Oak Hills projects from the Inland Empire office, and the crews who do the work live and work right here in the High Desert.
Styles & brands we work with







General Contractor Services in Oak Hills
General Contractor Services in Oak Hills mean managing a remodel or addition from first drawing to final inspection, including permits, engineering, septic and well sign-offs where they apply, and trade coordination across plumbing, electrical, framing, and finishes. A homeowner needs this level of oversight when a project touches structure, changes water or sewer connections, or triggers county review. Kitchen remodels in Oak Hills run $14,000 – $45,000. Bathroom remodels run $9,000 – $28,000. Home additions run $45,000 – $130,000. Those are real, local numbers, not marketing ranges.
Written Scope and Allowances
We write every Oak Hills project scope in plain language, line by line. Allowances for stone slabs like Cambria or Silestone are itemized with your chosen brand and your own material selection, so the number on paper matches the number on the final invoice. No upgraded slab ever appears as a surprise.

Permit and Inspection Coordination
On unincorporated county lots, our permit package includes what most contractors skip: septic tank location, leach field reserve, and well isolation distances. We hold the slab pour and rough-in framing until San Bernardino County Environmental Health signs off, because finishing first and failing final is a three-week mistake no Oak Hills homeowner should pay for.

What happens when you call
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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 Oak Hills

A Construction Company serving Oak Hills has to do more than swing hammers. It has to sequence work around county inspection schedules, private septic systems, and High Desert weather that bakes exterior work in summer and freezes it on winter nights. When an Oak Hills homeowner hires us, the job starts with a written price and a written schedule, and every trade who steps onto the property is verified under the Threshold Standard. Concrete driveway installation runs $4,500 – $12,000. Deck construction, depending on size and materials, typically falls in the $5,000 – $18,000 range in this market. Roof replacement runs $8,000 – $20,000.
Additions and ADUs
Garage conversions in Oak Hills run $30,000 – $80,000, and ADU construction runs $90,000 – $220,000. The county septic review is the part that surprises people. We carry that cost as a line item, not a buried contingency.
Finish Carpentry and Material Coordination
We stock and install specification-grade material from KraftMaid, Wellborn, Kohler, Moen, and GAF. That means your Oak Hills job isn’t waiting six weeks on a cabinet order someone forgot to place, and you’re not paying retail markup on a box-store vanity.
Trusted Brands We Service in Oak Hills
Oak Hills homeowners who want fast turnaround on material callbacks benefit from our direct partnerships. We install and warrant KraftMaid and Wellborn cabinetry on kitchen projects across Oak Hills. For surfaces, we handle Cambria, Silestone, and Caesarstone quartz with proper slab selection and template measurement, because the wide-open lots here mean long counters and big kitchen islands that eat up material fast. On fixtures, Oak Hills water quality demands components that stand up to private well chemistry, which is why we specify Kohler, Moen, and Toto as defaults. Tile roofs and composition shingle roofs? We work with GAF, CertainTeed, and Owens Corning. Those brand relationships mean Oak Hills customers aren’t waiting on backordered parts, and the warranty process doesn’t require three phone calls.
See the difference
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After
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AfterCommon General Contractor Problems We See in Oak Hills Homes
- Septic and well clearances that stall final inspection. Oak Hills is unincorporated San Bernardino County territory on private well and septic systems. A room addition or garage conversion that doesn’t account for septic reserve leach field area or well isolation distances gets red-tagged at final, after the finishes are already installed.
- Allowance blowups on stone and cabinetry. Homeowners sign a verbal walkthrough estimate, then get billed for upgraded Cambria or Silestone slabs that were never itemized. We write every allowance out before the first tool is unpacked, including the brand, the slab selection, and the square footage.
- Load-bearing wall openings without engineering. Cutting a new opening across a long unsupported span on a wide desert lot means structural engineering and a county permit. Skipping that step is how homeowners end up with cracked drywall and a failed final inspection.
- High Desert temperature swings on materials. Oak Hills sees summer highs over 100 degrees and winter nights below freezing. Exterior trims, adhesives, and even grout joints move differently here, and a contractor who doesn’t account for that will be back fixing cracked corners inside a year.
Pricing for General Contractor in Oak Hills, CA
| Project | Oak Hills Price 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 |
| Roof Replacement | $8,000 – $20,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
These are honest Oak Hills ranges, not teaser numbers. What moves a kitchen remodel from $14,000 to $45,000 is square footage, load-bearing wall removal with structural engineering, cabinet line selection, slab choice, and whether you’re moving plumbing or upgrading the electrical panel. What moves an ADU from $90,000 toward $220,000 is septic system capacity, because in Oak Hills, a two-bedroom ADU on a three-bedroom septic reserve usually means a new leach field, and that’s a separate five-figure line item. Your written price comes before any work starts, and the 365-Day Done Right Promise covers everything we install for a full year from completion. Call (803) 680-2547 for an exact quote. Estimates are free and written.
We Also Serve Cities Near Oak Hills
Mason Remodeling serves Oak Hills and surrounding High Desert and Inland Empire communities. If you’re in Los Angeles, San Diego, San Jose, or San Francisco, a general contractor visit is coordinated through the same General Contractor in Oak Hills scheduling desk. The phone number is the same, and the pricing model is the same: written, itemized, and delivered before any work starts.
Serving Oak Hills, CA - Our Local Coverage Area
We’re based in the Oak Hills 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 Oak Hills
Yes, for any structural, electrical, plumbing, or seismic work, and in Oak Hills specifically, for anything touching an exterior wall or water connection on private septic and well systems. San Bernardino County requires building permits for load-bearing wall changes, bathroom relocations, and any addition. A simple cabinet swap or countertop replacement usually doesn’t need one, but if you’re opening a wall or moving a toilet, the county wants drawings and an inspection. Call (803) 680-2547 and we’ll tell you honestly whether your Oak Hills project needs a permit before you spend a dollar.
A standard kitchen remodel in Oak Hills runs 6 – 10 weeks, a bathroom remodel 3 – 6 weeks, and a home addition or ADU 4 – 8 months, including county inspection scheduling and septic review. Oak Hills projects on unincorporated lots run a little longer than city projects because San Bernardino County Environmental Health sign-off is a separate timeline from building inspection, and we don’t skip it. We’ll give you a written schedule with the permit and inspection milestones listed in order, so you always know what’s happening next.
Three things: unseen structural conditions behind walls, septic or well conflicts the county flags during plan review, and homeowner-driven upgrades to cabinetry, stone, or fixtures after the scope is written. We eliminate the third one by itemizing every allowance in your written price before work starts. If you choose a more expensive slab or cabinet line later, that’s a change order with a line-item price, not a surprise. Call (803) 680-2547 for a written quote that accounts for the first two up front.
Because almost every single-family lot in Oak Hills is on a private septic system, and a garage conversion or ADU adds bedrooms, which adds sewage flow, which forces San Bernardino County Environmental Health to review the septic reserve capacity. If the existing system was sized for a three-bedroom house and you’re adding a bedroom, you may need a new leach field, and that is a five-figure line item on top of the construction cost. We saw it on a project off Oasis Road near El Centro Road, where a homeowner wanted a 480-square-foot detached ADU for her parents. The lot’s septic system was sized for a three-bedroom house with no reserve area left. We re-scoped the plan to a one-bedroom unit with a low-flow fixture package and a new designated septic reserve leach field, then held the slab pour until San Bernardino County Environmental Health signed off, which pushed rough-in framing back three weeks but kept the ADU from being red-tagged at final. We built it out with KraftMaid cabinetry, a Kohler shower, and Cambria counters, and it closed out inside the $90,000 – $220,000 ADU band with the leach field listed as a separate line item. That’s the honest Oak Hills price.
By writing everything down before work starts. Your Oak Hills project gets a written price that includes every allowance, every brand, and every permit fee as a line item, plus a written guarantee that states exactly what’s covered and for how long, 365 days from the completion date. If a repair or installation fails within that year, we return at no charge, no dispute process, no conditions. Isaac Pruett coordinates every Oak Hills job, and a live person answers the phone around the clock if you need to talk to someone. Call (803) 680-2547 to schedule your free estimate.
Written by Isaac Pruett, Owner at Mason Remodeling, serving Oak Hills since 2004.










