Home additions & ADU
Kitchen remodeling
Bathroom remodeling
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 Home Gardens
Most General Contractor work in Home Gardens comes down to one thing: does the crew understand Riverside County permitting and the dirt under these older ranch homes? We do. We’re Toolbox Contractors, and we’ve built additions, garage conversions, ADUs, roofs, and full interior remodels throughout Home Gardens for years. If you’re planning a kitchen gut, a bathroom overhaul, or a detached ADU on a horse-property lot, call Norm Castellano and our team at (855) 382-3257. We’ll give you an honest scope and a real number before you spend a dime.
Key Takeaways:
- Full-scope contractor: one team handles interior, exterior, roofing, windows, fencing, hardscape, and ADU work.
- We know Riverside County’s plan-check and inspection cycle cold, which keeps Home Gardens additions and ADUs on schedule.
- We spec materials for inland Santa Ana wind and salt air, not the cheap inland package that fails early.
- Free estimates, written line-item quotes, and no change orders without your sign-off.
Why Toolbox Contractors Is Home Gardens’s Preferred General Contractor Company
Home Gardens is unincorporated Riverside County, and that changes everything about how a project runs here. We’re not a Corona crew guessing at county code; we sequence work around Riverside’s plan-check timeline and its inspection sign-offs. That matters when your draw schedule depends on passing a footing inspection before the concrete truck shows up. Homeowners around Harvill Avenue, the older ranch tracts off Magnolia, and the horse properties along the Santa Ana River corridor call us because we already know which questions the county is going to ask.
Our clients in Home Gardens tend to be people who’ve been burned before or who’ve done enough research to know materials matter. They ask about GAF versus CertainTeed roofing, about Cambria versus Caesarstone countertops, about whether a Boxabl or Plant Prefab ADU makes sense on their lot. We answer those questions with specific product knowledge, not sales scripts. Norm Castellano runs every estimate personally, and the same crew that frames your addition handles your window install and your fence replacement. One contract, one point of accountability.
Styles & brands we work with







Licensed General Contractor in Home Gardens
A Licensed General Contractor in Home Gardens handles the full scope of a residential build or remodel, and in this unincorporated Riverside County pocket, that license carries real weight. County plan-check out of Riverside reviews your structural drawings, your energy calcs, and your lot-coverage math before we ever break ground. Homeowners looking at room additions, garage conversions, or a whole-home remodel should budget for longer plan-check cycles than a neighboring city like Norco or Eastvale sees. The upside: a county inspection trail that’s thorough and documented, which protects your resale value.
What We Handle
Kitchen and bathroom remodels, whole-home renovations, room additions, garage conversions, ADU builds, and deck construction. We also do the exterior work most remodelers won’t touch: roof replacement, window replacement, siding, fencing, and paver driveways. For a Home Gardens homeowner, that means the crew framing your addition can also re-roof the existing structure and replace the windows, without you coordinating three phone numbers.
What It Costs
A room addition in Home Gardens typically runs $45,000 to $130,000. Garage conversions land between $30,000 and $80,000. Those numbers reflect the over-excavation and recompaction these decomposed granite and expansive clay lots require, plus the county’s plan-check and inspection fees. Cheap quotes usually skip the soils work, and you’ll see the cracks by the second winter.
Residential General Contractor in Home Gardens
A Residential General Contractor in Home Gardens manages the entirety of a homeowner’s build, from first demo to final inspection sign-off. The housing stock here is largely mid-century and 1970s-80s single-story ranch and tract homes, many of them wood-framed and built to codes that wouldn’t pass today. When we open up a wall in a 1970s Home Gardens ranch, we expect to find undersized headers, older wiring, and slab pours over un-recompacted decomposed granite. We quote for that reality up front, so you’re not staring at a change order two weeks into demo.
Full-Scope Interior and Exterior
We remodel kitchens with KraftMaid or Wellborn cabinetry, Kohler or Moen fixtures, and Schluter tile systems. We replace roofs with GAF, CertainTeed, or Owens Corning systems. We install windows from PGT, CGI, or Therma-Tru, and fence lines from Master Halco, Jerith, or Ameristar. Hardscape runs through Belgard, Unilock, or Techo-Bloc pavers. Same crew, same contract, same point of accountability whether the work is inside or out.
ADU and Prefab Capability
Home Gardens lots, especially the horse properties and larger ranches, are ideal for ADUs. We’re certified through partnerships with Abodu, Dvele, Boxabl, Mighty Buildings, and Plant Prefab, which puts us ahead of most local GCs who haven’t adapted to the accessory dwelling unit boom. A prefab ADU in Home Gardens typically runs $90,000 to $220,000 depending on site prep, and here the site prep is the real variable, because of the soils and the county’s grading requirements.
Trusted Brands We Service in Home Gardens
We install and service fencing lines from Master Halco, Jerith, Ameristar, and Barrette, among the 50+ vetted material brands we work with across every phase of a project. For Home Gardens specifically, we keep stainless and hot-dip galvanized fasteners on hand because bare steel doesn’t survive the salt-laden Santa Ana air out here. If you need a fence section matched to an existing Jerith aluminum line or a Master Halco post replacement after a wind event, we can turn that around quickly for Home Gardens customers without ordering from a warehouse across the county.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Home Gardens Homes
- Salt-air corrosion on steel and aluminum. The Santa Ana winds push salt and dry air through Home Gardens year-round, and we regularly see bare steel fasteners, untreated fence posts, and standard aluminum window frames pitting and chalking within four or five seasons. We spec marine-grade or hot-dip galvanized hardware and coated window frames instead.
- Slab and footing failure over decomposed granite. Many original Home Gardens slabs were poured directly over un-recompacted decomposed granite, and expansive clay underneath doesn’t help. Additions and garage conversions without over-excavation and deeper footings crack by the first winter rain. We budget for the soils work on every quote, even if the competing bid doesn’t.
- Wrong plan-check timeline. Home Gardens runs on Riverside County’s building department cycle, not Corona’s or Norco’s. A contractor who sequences your ADU around a neighboring city’s turnaround will blow your draw schedule and delay inspection sign-off. We build the county’s actual review timeline into our schedule up front.
- Undersized structural framing in older ranches. Homes built in the 1950s through early 1980s in Home Gardens often carry headers and stud spacing that fail current lateral load requirements. When we open a wall, we correct it and document the upgrade for the county inspector, which also helps if you ever sell.
Pricing for General Contractor in Home Gardens, CA
Home Gardens pricing reflects two things: Riverside County’s permit path and the local soils. A home addition runs $45,000 to $130,000. ADU construction lands between $90,000 and $220,000, and garage conversions between $30,000 and $80,000. Roof replacement runs $8,000 to $20,000 depending on whether you go architectural asphalt or a Class A fire-rated system. Window replacement starts around $4,500 and can reach $15,000 for impact-rated or full-frame installs on a larger ranch.
| Service | Home Gardens Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
The single biggest cost driver in Home Gardens is what’s under the surface. Decomposed granite and expansive clay mean over-excavation, recompaction, and deeper footings on nearly every addition or detached structure. Skip that work and the cheap bid costs you more within a decade. Skip the coastal-spec hardware on the Santa Ana exposure and you’re replacing fence posts and window frames in five years. Every estimate we write includes those line items, itemized, so you can compare apples to apples. Call (855) 382-3257 to schedule your free estimate.
We Also Serve Cities Near Home Gardens
Our Home Gardens crew regularly runs projects in Home Gardens, Corona, Eastvale, Norco, and El Cerrito Corona. If your property sits near the county line or you’re splitting your time between two addresses, we can handle a single scope that covers both. Call (855) 382-3257 and Norm will sort out which permit path applies.
Serving Home Gardens, CA — Our Local Coverage Area
We’re based in the Home Gardens 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 Home Gardens
Because Home Gardens is unincorporated Riverside County, so every addition clears the county building department out of Riverside, not a city hall counter. County plan-check cycles run longer, the inspection log is more documentation-heavy, and the soils work on decomposed granite and expansive clay adds over-excavation and deeper footings that a Corona lot might not need. A Home Gardens addition typically runs $45,000 to $130,000, and the premium over a neighboring city is usually $8,000 to $20,000 of soils and permit time, not markup. Call (855) 382-3257 and we’ll show you the line items.
Yes. Home Gardens falls under Riverside County’s building jurisdiction, and any conditioned-space addition, garage conversion, or ADU requires county plan-check, permits, and inspections. Unpermitted work on a Home Gardens property comes up on title reports during a sale and can wipe out the value you thought you added. We pull the permits, we schedule the inspections, and we build the draw schedule around the county’s actual sign-off dates. That’s standard on every quote we write.
We spec Class A fire-rated roofing from GAF, CertainTeed, or Owens Corning, with stainless or hot-dip galvanized fasteners, because the Santa Ana winds carry enough salt to pit standard steel within a few seasons. For windows, we lean on PGT, CGI, or Therma-Tru frames with coated or marine-grade finishes, especially on west-facing exposures near the foothills. The coastal-spec version of a window package costs more up front, but the inland-spec alternative chalks and fails within five to seven years. Call (855) 382-3257 for a spec sheet and a quote.
We assume every pre-1985 Home Gardens ranch has undersized headers, questionable lateral bracing, and original slab work that won’t meet current code. When we open a wall, we correct the framing, document the upgrade for the county inspector, and bring the structure up to current lateral and shear requirements before we close it back up. On a recent garage conversion off the unpaved shoulders near Harvill Avenue, we found the original slab poured over un-recompacted decomposed granite, and the punch list started with over-excavation and deeper footings before we could even rough-in the bath. We spec hot-dip galvanized anchors and stainless fasteners on any new exterior wall, and we seal every paver joint on new walks because the inland clay-and-salt swing eats bare steel within a few winters. That’s the standard every Home Gardens job gets.
Get the base and the hardware right the first time. For pavers, that means over-excavation, recompacted base, and sealed joints, which runs $3,500 to $11,000 for a typical Home Gardens patio but prevents the winter cracking and heaving we see on poured or thin-base installs. For fences, stick with Master Halco, Jerith, or Ameristar posts and rails set in recompacted footings with hot-dip galvanized or stainless hardware. Untreated steel posts in Home Gardens salt air rot through at the concrete line within a handful of years, and replacing a fence line always costs more than the upgraded hardware would have. Call (855) 382-3257 for an exact quote, estimates are free.
Call (855) 382-3257 to schedule your free estimate with Norm Castellano and the Toolbox Contractors team. We’ll walk your Home Gardens property, check the soils and the existing structure, and give you a written line-item quote before you sign anything.
Written by Norm Castellano, Owner at Toolbox Contractors, serving Home Gardens and the surrounding Riverside County area.