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 San Antonio Heights
Hiring a general contractor in San Antonio Heights means finding someone who understands what happens when you open up a 1960s hillside home and start pulling permits through San Bernardino County. We do. Most remodels here run $14,000 – $45,000 for kitchens and $9,000 – $28,000 for bathrooms, but the real cost driver is what’s hiding behind the walls. Timberline Contractors has been navigating county permitting, clay-soil foundations, and the specific surprises of this unincorporated foothill community long enough to know exactly what to plan for. Call (866) 253-5808 to schedule a free estimate, and we’ll walk your property before we ever put a number in front of you.
Why Timberline Contractors Is San Antonio Heights’s Preferred General Contractor Company
We didn’t start chasing permits in San Antonio Heights yesterday. Nelson Fung has led Timberline Contractors through enough county reviews and hillside grading corrections to know which questions to ask before demolition starts. Homeowners here tend to do their homework. They ask about waterproofing details, engineered plans, and whether the allowance in the contract is actually realistic. We like that. It means we end up on projects where the homeowner wants the work done right, not fast.
Our approach in San Antonio Heights is built around inspection first. Before we price a remodel, we look at the subfloor, the wiring, the slope, the drainage. That’s how we avoid the classic scenario where a $25,000 kitchen becomes a $40,000 kitchen the day someone starts pulling drywall. When surprises do surface, they get priced as a written change order and approved before we touch the work. No open-ended tabs.
Styles & brands we work with
Remodeling Contractor in San Antonio Heights
Hiring a General Contractor as your remodeling contractor in San Antonio Heights means one contract covering scope, materials, subs, inspections, and warranty. The alternative is juggling five trades and hoping they talk to each other. Remodels in the 91784 zip code typically range from $14,000 – $45,000 for kitchens and $9,000 – $28,000 for bathrooms, depending on whether you’re keeping the existing layout or moving plumbing and structural walls.
Kitchen and Bath Remodels on Older Ranch Homes
The ranch homes and hillside builds from the 1960s – 1980s carry a mix of solid bones and outdated guts. We regularly find undersized floor joists under planned kitchen islands and cloth-wrapped wiring that predates modern code. Our contracts build allowances for exactly these discoveries, so a change order stays a conversation, not a confrontation.
Full-Scope Coordination From Foundation to Finish
San Antonio Heights properties often need exterior work tied to interior work: a retaining wall repair alongside a room addition, a roof replacement scheduled before a kitchen remodel. We run those scopes under one contract. We also offer ADU construction ranging $90,000 – $220,000 and home additions at $45,000 – $130,000 for homeowners on larger lots.
Licensed General Contractor in San Antonio Heights
When you hire Timberline Contractors as your Licensed General Contractor in San Antonio Heights, you’re getting a licensed operator who holds every subcontractor accountable to the same standard. Remodeling on eucalyptus-lined hillsides with clay soil means grading, drainage, and foundation details matter more than they would in a flat tract. We don’t skip those steps.
County Permits and Hillside Grading
Because San Antonio Heights is unincorporated, every permit we pull runs through San Bernardino County, not the City of Upland. On sloped parcels, that often triggers engineered grading plans and drainage checks that a typical Upland remodel never faces. We build that timeline into the schedule up front, so you’re not waiting on a surprise review after demo starts.
Additions and ADUs on Large Equestrian Lots
Many homes here sit on septic systems, private wells, and parcels zoned for horses. Adding square footage or a detached ADU means understanding county septic clearance, well setbacks, and rural residential codes. A home addition runs $45,000 – $130,000. An ADU runs $90,000 – $220,000. Both require the same county-driven discipline as any other project here.
Trusted Brands We Service in San Antonio Heights
We bring our full brand partner lineup to every San Antonio Heights project, including Tremron in San Antonio Heights. That means KraftMaid or Wellborn cabinetry in the kitchen, Cambria or Silestone on the counters, GAF or CertainTeed roofing overhead, and Grohe or Toto fixtures in the bath. For Santa Ana wind and wildfire exposure, we lean on James Hardie siding and Owens Corning roofing products that meet the hardening standards this foothill location demands. When a homeowner here wants a specific brand, we don’t substitute. We order it and install it under the manufacturer’s specifications so warranties stay intact.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in San Antonio Heights Homes
- Outdated wiring and underbuilt framing. Homes from the 1960s – 1980s frequently have cloth-wrapped wiring or undersized floor joists. Once walls are open, county code requires us to bring electrical and structural details up to current standards before we can close permits.
- Clay-soil expansion and foundation movement. Clay soils on sloped lots expand and contract with seasonal moisture, which shows up as cracked slabs, sticking doors, or foundation stress. We evaluate these conditions before framing or foundation work starts.
- Santa Ana wind and wildfire hardening. Defensible-space clearing, fire-resistant siding, and roof detailing are common requirements on larger foothill parcels. We plan exterior material choices around exposure, not just appearance.
- County permitting surprises. Hillside projects can trigger engineered grading and drainage plans that municipal remodels never require. We include that paperwork in the schedule so it doesn’t arrive as a mid-project shock.
Pricing for General Contractor in San Antonio Heights, CA
| Project | Typical Range in San Antonio Heights |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
These ranges reflect what we see across San Antonio Heights in the 91784 zip code. A small kitchen remodel typically starts around $9,000 – $20,000. A full kitchen with cabinet installation, countertop installation, and structural work can reach $45,000. Every quote includes written allowances for the hidden conditions this older housing stock tends to produce. We price those as signed change orders, not vague “surprise” line items. Call (866) 253-5808 to schedule your free estimate and get a line-item quote specific to your property.
We Also Serve Cities Near San Antonio Heights
Timberline Contractors works throughout the Inland Empire foothills, including San Antonio Heights and the surrounding communities of Upland, Claremont, Rancho Cucamonga, and Montclair. If you’re in a neighboring city and planning a remodel, addition, or ADU, we bring the same county-level permitting knowledge and brand access to every project.
Serving San Antonio Heights, CA — Our Local Coverage Area
We’re based in the San Antonio Heights 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 San Antonio Heights
Yes. San Antonio Heights is unincorporated, so all construction permits run through San Bernardino County rather than the City of Upland. On sloped foothill parcels, that county review often triggers engineered grading plans and drainage checks that a typical tract-home remodel in Upland never requires. We handle that paperwork from day one. Call (866) 253-5808 to get the process started.
The most common triggers are cloth-wrapped or outdated wiring that must be brought to current code, undersized framing under kitchen islands or new structural openings, and failed waterproofing behind tubs and showers. We write allowances for these conditions into the contract, then price any discovered issue as a written change order before we touch it. Estimates are free, and we walk your home before quoting.
Clay soil expands when wet and shrinks when dry, which moves foundations and creates the cracked slabs and sticking doors common on San Antonio Heights hillsides. Before any addition or foundation work, we evaluate soil conditions, drainage patterns, and existing movement. That evaluation informs the engineering and avoids building on an unstable base.
Yes. We build ADUs ranging $90,000 – $220,000 and handle accessory structures, including barns and detached garages, common on equestrian and large-lot properties here. We work with prefab partners like Abodu, Dvele, and Mighty Buildings when that route fits faster delivery, or we build fully site-framed when the lot demands it.
A typical draw schedule breaks the project into milestones tied to visible progress: deposit and mobilization, rough-in and county inspection sign-off, drywall and finishes, and final walkthrough with lien release. Each draw corresponds to completed work you can see and verify. We document everything, including the unseen rough-in work, so there’s no ambiguity about what you’re paying for.
Call (866) 253-5808 to schedule a free estimate with Timberline Contractors. We’ll walk your San Antonio Heights property, evaluate the specific conditions of your lot and structure, and give you a written line-item quote you can actually plan around.
Written by Nelson Fung, Owner at Timberline Contractors, serving San Antonio Heights and the surrounding foothill communities.