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
General contracting in San Antonio Heights means working with hillside lots, county permitting, and wildfire code requirements that flatland contractors rarely deal with. A kitchen remodel here runs $14,000 – $45,000, a bathroom $9,000 – $28,000, and a roof replacement $8,000 – $20,000, depending on what the county requires once we open the walls. Nelson Ibarra and the Alder Contractors team have managed projects throughout 91784, from ranch homes near 24th Street to custom builds off Mountain Avenue. Call (833) 467-7020 for a free estimate and we’ll walk you through what your specific property actually needs.
Why Alder Contractors Is San Antonio Heights’s Preferred General Contractor Company
Our reputation in San Antonio Heights comes from doing the unglamorous work right: the shear walls, the drainage, the permit paperwork that nobody sees but everybody needs. Homeowners here deal with San Bernardino County rules that differ from what Upland or Rancho Cucamonga enforce, and we’ve spent enough time in 91784 to know those differences cold. We don’t guess. We pull the right permits the first time.
Reviews from San Antonio Heights customers consistently point to the same things: we show up when we say we will, we keep the site clean on driveways that barely fit a pickup, and we explain costs before work starts. Nelson Ibarra started Alder Contractors to give homeowners one accountable point of contact instead of a phone full of subcontractors. That matters more on a hillside lot where a foundation issue can cascade into drainage, retaining, and framing work.
We carry general contracting license coverage across interior remodeling and exterior trades, and we’re insured for the scope of work these foothill properties demand. Our access to 50+ material brands means you’re not limited to whatever the local supply house has in stock. Need a Class A roof assembly from GAF or CertainTeed? Fire-rated vents? Cambria quartz for a kitchen island? We source it and manage the delivery logistics around tight turnarounds.
Styles & brands we work with
Construction Company in San Antonio Heights
A Construction Company in San Antonio Heights has to do more than build: it has to plan around county codes, steep access, and the reality that a 1960s ranch on decomposed granite will not react like a newer stucco home in Rancho Cucamonga. When you hire Alder Contractors, you get a builder who has staged concrete pours on narrow driveways off San Antonio Canyon and knows which equipment can make the turn. Home additions here run $45,000 – $130,000, and a full General Contractor engagement for a hillside remodel typically lands in that range once engineering is factored in.
Permits and County Code
San Antonio Heights is unincorporated, so everything runs through San Bernardino County, not a city building department. That changes what gets inspected, when, and how much documentation you need to keep. We handle the full permit package, including wildfire-hardening requirements: Class A roofing, ember-resistant vents, and defensible-space considerations that the county takes seriously.
Hillside Foundations and Drainage
Sloped lots throughout 91784 often sit on decomposed granite that looks solid until you dig. Then you need engineered solutions: deeper footings, retaining systems, subsurface drainage. A cheap quote that skips this work will fail inspection and leave you with a foundation problem. Our quotes include the engineering because we know it’s not optional here.
Remodeling Contractor in San Antonio Heights
As a Remodeling Contractor in San Antonio Heights, our job is to respect what the original builder got right while fixing what time and weather have undone. The mid-century ranch homes that dominate this community were built with old-growth framing that’s held up, but their electrical panels, insulation, and window systems were never designed for Santa Ana wind events or inland summer heat. A kitchen remodel in San Antonio Heights runs $14,000 – $45,000, a bathroom $9,000 – $28,000, and a full whole-home renovation can exceed $100,000 depending on structural updates the county requires.
Kitchen and Bath Remodels
We open walls and find the surprises before they become change orders: inadequate venting, aluminum wiring, framing that needs shear reinforcement. Then we build back with materials you actually chose, not whatever was on sale. Cambria countertops, Kohler fixtures, KraftMaid cabinets – named brands, written into the scope, no bait-and-switch games.
Exterior and Wildfire Retrofits
Santa Ana winds and hot dry summers are not hypothetical in San Antonio Heights. A remodel that touches the exterior should address what the county will ask about anyway: roofing class, ember-resistant vents, defensible clearance. We can handle roof replacement ($8,000 – $20,000), impact windows ($8,000 – $25,000), and siding work under the same contract rather than farming it out to three separate crews.
Trusted Brands We Service in San Antonio Heights
Our material partners include manufacturers you’d otherwise have to research, compare, and source yourself: PGT windows and doors, Boral roofing products, Tamko shingles, CGI impact-rated lines. Because we stock and order from these brands regularly for San Antonio Heights projects, we can typically turn around material selections faster than a contractor who’s calling suppliers for the first time. You pick what fits your home and your budget. We handle procurement, delivery, and warranty tracking.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in San Antonio Heights Homes
- County code mismatches: A contractor quotes work based on Upland municipal standards, then San Bernardino County requires upgrades nobody budgeted for. If the quote doesn’t mention wildfire-hardening requirements, it’s incomplete.
- Decomposed granite surprises: Hillside excavation uncovers unstable soil, and suddenly the foundation plan needs engineering. Without a written scope and change-order process, that’s where disputes start.
- Access and staging failures: Narrow winding streets off Mountain Avenue and San Antonio Canyon will not accommodate full-size concrete trucks or material deliveries. Planning pouring and staging without accounting for this causes multi-day delays.
- Missing documentation: Homeowners can’t prove code compliance to their insurance carrier because the contractor never provided final inspection sign-offs. In a wildfire-exposure area, that documentation is worth money.
Pricing for General Contractor in San Antonio Heights, CA
A general contracting project in San Antonio Heights costs more than a comparable job in Upland or Montclair because of hillside engineering, county permitting, and wildfire-hardening requirements. Here are the ranges we quote most often in 91784:
| Project | Typical Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Home Addition | $45,000 – $130,000 |
| Roof Replacement | $8,000 – $20,000 |
The spread depends on what the county requires once we know the scope: engineered shear walls, Class A roofing, drainage systems, or structural retrofits. Call (833) 467-7020 and we’ll give you a written line-item estimate, not a verbal ballpark.
We Also Serve Cities Near San Antonio Heights
Our service area includes Upland, Claremont, Rancho Cucamonga, and Montclair. If you’re a homeowner in one of those communities looking for a General Contractor in San Antonio Heights-level standard of work, call us. We manage projects across the Inland Empire with the same attention to code and detail.
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
San Bernardino County requires Class A roofing, ember-resistant vents, and wind-load-rated shear walls for most new construction and major remodels in the foothill zone. A compliant quote includes these items line by line; a cheap quote skips them and hopes nobody checks. Call (833) 467-7020 and we’ll show you exactly what applies to your property.
Ask for the permit application number and the San Bernardino County office where it was filed, then confirm it’s active on the county’s public portal. A legitimate contractor will hand you this information without hesitation. We provide every client with permit documentation before work begins and final inspection sign-offs when the job closes.
Yes, in many cases. Insurance carriers in high-exposure areas like San Antonio Heights often discount premiums when homeowners submit proof of Class A roofing, ember-resistant vents, and defensible-space work. We’ve had clients use our inspection sign-off documentation to secure those discounts after a roof or exterior retrofit.
Because the slopes are cut into decomposed granite that shifts with winter rain and expands in summer heat. Standard footings are not enough; you need engineering that accounts for lateral soil pressure and surface water movement. Our quotes include this work because it’s the difference between a home that settles and one that doesn’t.
A compliant quote includes line items for county permit fees, Class A roofing materials or vents where required, engineered shear walls, drainage and grading, and documentation at final inspection. A cheap quote omits those categories because they’re expensive and invisible. If those items aren’t in writing, you’re going to pay for them later anyway – usually mid-project, when you have no leverage. Call (833) 467-7020 for a quote that lists everything.
For a free estimate on your San Antonio Heights project, call Alder Contractors at (833) 467-7020. Nelson Ibarra and our team serve the entire 91784 foothill community, from the ranch homes near Euclid Avenue to the custom builds off Mountain Avenue. One contractor. Every phase.
Written by Nelson Ibarra, Owner at Alder Contractors, serving San Antonio Heights since 2018.