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 Home Remodeling Across San Antonio Heights
Home remodeling in San Antonio Heights runs $14,000 to $45,000 for a kitchen and $9,000 to $28,000 for a bathroom, with whole-house projects and additions scaling well beyond that depending on the hillside scope. The bigger question on these foothill lots is not just the finish work. It is whether the County will require a soils report before anyone touches a foundation or retaining wall. We know that question comes up early, because almost every lot here sits on decomposed granite and variable fill, and we plan for it before we quote. Call (855) 382-3257 to talk through your project.
Why Toolbox Contractors Is San Antonio Heights’s Preferred Home Remodeling Company
Norm Castellano leads our team, and he has spent enough time on the ridge roads in 91784 to know what the County of San Bernardino Building and Safety department asks for before they sign anything. Our customers in San Antonio Heights keep calling us back for additions, kitchen guts, and detached ADUs because we run the permit path correctly the first time. We do not treat a hillside lot like a flat one. We plan for the soils report, the staging logistics down a steep driveway, and the drainage question before the first estimate goes out. That is why homeowners here refer us to their neighbors on the same ridge. We are a full-scope Home Remodeling contractor, which means the same crew that opens up your kitchen can also handle the structural side, the roof, the windows, and the hardscape. One contract. One point of accountability.
Styles & brands we work with







Whole House Remodel in San Antonio Heights
A Whole House Remodel in San Antonio Heights is rarely a cosmetic project. On mid-century ranches and custom hillside estates along the foothill roads, it usually means opening walls, correcting load paths, upgrading original plumbing, and bringing the whole envelope up to current County standards. Homeowners here go this route when a house has good bones but outdated everything, or when a growing family needs more space without moving off the hill. Budget for $45,000 to $130,000 depending on square footage and structural work. We write the scope with the soils report and grading plan in hand, not as an afterthought.
Structural and Permit Reality
Most whole-house remodels in 91784 involve load-bearing corrections once walls come down. The original framing on mid-century ranches here often does not match what the plans assumed. We coordinate the County permit, the soils report, and the structural engineer at the same time so the foundation and retaining-wall lines do not blow the budget mid-project.
Interior Finish Scope
Once the structure is sound, we move through kitchens, baths, flooring, and windows as one continuous phase. You can spec KraftMaid or Wellborn cabinets, Cambria or Caesarstone countertops, and Kohler or Moen fixtures without juggling three separate contractors. The schedule stays on one timeline.
Luxury Home Remodeling in San Antonio Heights
Luxury Home Remodeling in San Antonio Heights leans on the same hillside realities, but the finish tier changes. Custom estates along the ridge roads call for Cambria and Caesarstone surfaces, Grohe and Toto fixtures, and window packages from PGT or Therma-Tru that hold up to Santa Ana wind events. Expect $90,000 to $220,000 for a high-end kitchen-and-primary-suite overhaul or a detached ADU built to match the main house. The material budget matters, but the bigger cost driver on these lots is still access and foundation work. A steep driveway or a decomposed-granite pad changes how we stage crews and crane materials.
High-End Kitchens and Baths
We install KraftMaid and Wellborn cabinetry with Cambria, Silestone, and Caesarstone tops. Fixture packages range from Moen and Delta to Grohe and Toto, depending on the look you want. The same plumber and the same tile crew handle the master bath, so the finish level stays consistent room to room.
Detached ADUs and Estate Features
Through our partnerships with Abodu, Dvele, Boxabl, and Plant Prefab, we can build a detached ADU or a guest house on your acreage without the year-long construction timeline of a fully custom build. County setbacks, septic, and well lines still apply, and we run that review before we present any prefab option.
Trusted Brands We Service in San Antonio Heights
We stock and install materials from brands that hold up on a hot, dry foothill lot. For fencing and property lines that define acreage here, we work with Barrette, Master Halco, Jerith, and Ameristar. For hardscape around steep grades, we use Belgard, Unilock, and Techo-Bloc pavers that can handle the drainage and freeze-thaw cycles of the higher elevation. Our San Antonio Heights customers get brand-name materials without waiting on long lead times from out-of-area suppliers. We stage deliveries in phases down the driveway, so nothing sits in the street and nothing blocks the fire-access shoulder.
See the difference
Before
After
Before
After
Before
AfterCommon Home Remodeling Problems We See in San Antonio Heights Homes
- Decomposed granite surprises. Dig into a sloped lot and you will hit DG and variable fill, which means a soils report and possible over-excavation before any foundation plan gets County sign-off. We scope that before quoting, not after demo starts.
- Steep driveway staging. Material deliveries on ridge roads with narrow shoulders and tight switchbacks do not work like a flatland job. We phase loads and keep the street clear for fire access and neighbors.
- Original plumbing and framing on mid-century ranches. These homes were built well, but the pipe and lumber are now 60-plus years old. We plan for repipes and load-bearing corrections when we open the walls.
- Wildfire exposure and Santa Ana winds. The wildland-urban interface here drives real material choices: Class A fire-rated roofing from GAF or Owens Corning, ember-resistant vents, and window packages like PGT or CGI that hold their rating in wind-driven conditions. Skipping those details gets expensive later.
Pricing for Home Remodeling in San Antonio Heights, CA
The numbers below reflect what we see on unincorporated hillside lots, not flatland Inland Empire pricing. A flat $20,000 kitchen quote that ignores a soils report and retaining-wall scope will not hold up here. These are the ranges to plan around, and we will give you a written line-item quote that matches the actual grading and permit reality on your lot.
| Project | San Antonio Heights 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 |
What moves the price on these lots: soils reports, retaining walls, drainage, septic and well setbacks, and how steep the driveway is for equipment access. We price those line items before you sign anything. Call (855) 382-3257 for a free estimate.
We Also Serve Cities Near San Antonio Heights
Our crews work throughout the foothill corridor, so if you are just down the hill in Upland, Claremont, Rancho Cucamonga, or Montclair, the same team and the same brand material list apply. We cover all of San Antonio Heights plus the surrounding communities, and we quote every job against the local permit path, not a generic county template.
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 Home Remodeling in San Antonio Heights
San Bernardino County Building and Safety issues the permit, not a city department, because San Antonio Heights is unincorporated. That means the review path runs through the County’s hillside and geology requirements, which often include a soils report on decomposed granite or variable fill before foundation or retaining-wall plans get approved. Call (855) 382-3257 if you want us to walk your specific lot before you commit.
A sloped lot off the ridge roads costs more because the foundation, retaining walls, drainage, and equipment access all change the scope. We usually need a soils report, a grading plan, and phased material staging down the driveway. Those are real line items on the quote, not padding. Pricing for a hillside whole-house remodel here lands between $45,000 and $130,000, and we break that out in writing before work starts. Call for a free estimate.
A detached ADU or shop on an acreage lot typically runs $90,000 to $220,000, and the premium over an attached addition comes from separate utility runs, septic and well setbacks, and sometimes a separate foundation pad on decomposed granite. Attached additions fall closer to $45,000 to $130,000 because they share one wall and one set of utility tie-ins. We scope both options side by side so you can price the trade-off before choosing.
Sometimes yes, sometimes no. If the remodel is cosmetic and the walls stay closed, we can leave the original pipe and framing alone. The moment we open a load-bearing wall, the County will likely ask us to verify the framing path, and 60-year-old galvanized plumbing usually needs at least partial replacement once exposed. We find this out during the planning walkthrough, not after demo. Call us for a site visit and we will tell you what your specific house needs.
We treat drainage as a structural item, not a finish item. On a sloped lot, we plan roof runoff, swales, and retaining-wall weep systems so winter rains do not push water onto your neighbor’s slope. For wildfire exposure, we spec Class A fire-rated roofing from GAF or Owens Corning, ember-resistant vents, and window packages like PGT or CGI that hold their rating in Santa Ana winds. Both items go into the quote up front. Call (855) 382-3257 for the exact numbers on your lot.
Written by Norm Castellano, Owner at Toolbox Contractors, serving San Antonio Heights and the surrounding foothill communities.