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 Corona
If you’re searching for a general contractor in Corona who actually understands the ground your house sits on, you’re in the right place. We work throughout 92877, 92878, 92879, and 92880, from the flat-core tract blocks off Main Street to the hillside engineered-fill lots along the 91 toward the Santa Ana Mountains. Nolan Driscoll built General Contractor operations at Iron Beam Contractors around one principle: the quote has to match the soil, the slope, and the code reality of your specific lot, not a template. Call us at (833) 756-5936 for a free estimate that accounts for what’s actually under your foundation.
We serve Corona directly, and our crews know the difference between a 1963 slab-on-grade rancher in the 92879 corridor and a 2004 Mediterranean build on compacted fill in 92880. That difference changes the scope, the permits, and the number on the quote. We’d rather show you the real math up front.
Key Takeaways:
- Home additions in Corona run $45,000 – $130,000; ADUs run $90,000 – $220,000.
- Hillside work carries dewatering and buried-line risk that flat-core lots don’t, and we scope for it honestly.
- Documented compliance on wind and storm loads protects your insurance position after a claim.
- One contract, one accountable team for kitchens, baths, roofs, additions, and hardscape.
Why Iron Beam Contractors Is Corona’s Preferred General Contractor Company
Corona homeowners don’t need a phone-tree contractor who hands the project to three subs and disappears. They need someone who walks the slope, opens the trench, and signs the inspection card. That’s how Iron Beam Contractors works. We’ve built our reputation in Corona’s neighborhoods by showing up when we say we will and writing quotes that include the boring, expensive, invisible work, the dewatering, the compaction testing, the slope-setback sign-offs, that cheap bids conveniently leave out. Homeowners on the east side in 92880 and 92883 and in the older core of 92879 and 92882 keep our number because the second project goes smoother than the first. That’s the metric that matters to Nolan Driscoll and the crew. Call (833) 756-5936 and ask us about a street we’ve worked near yours. We’ll have an answer.
Styles & brands we work with







Residential General Contractor in Corona
A residential general contractor in Corona has to manage two very different houses that share a ZIP code. The flat-core tracts built between 1958 and 1975 in 92879 and 92882 sit on slab foundations with original galvanized rough-in and stucco that has been baking in 95-degree summers for six decades. The hillside and east-side tracts in 92880 and 92883 sit on engineered fill over old citrus irrigation lines, with retaining walls and slope setbacks that carry real structural load. A kitchen remodel in one is not the same job as a kitchen remodel in the other, and a quote that treats both as identical is already wrong on day one.
Foundation and Grading Awareness
On the hillside lots off the 91 near the Santa Ana River, our crew opened footing trenches for a retaining wall and hit an old citrus irrigation line and shallow groundwater the seller’s disclosures never mentioned. We stopped work, called for an inspection sign-off on the grading before backfill, and re-poured with underdrain added. That homeowner’s rebuilt wall now carries a documented compaction and drainage paper trail that the flat-core tract homes on 92879 and 92882 never needed. That’s the difference between a contractor who has done it and one who is about to learn on your lot.
Additions and Full-Scope Remodels
A room addition in Corona typically runs $45,000 – $130,000 depending on whether we’re tying into a 1960s slab or a 1990s engineered pad. ADU construction runs $90,000 – $220,000, and garage conversions land between $30,000 and $80,000. Every one of those scopes starts with the same questions: what’s under the slab, what’s the setback, and what does the city want stamped before we pour.
Hire a General Contractor in Corona
When you hire a general contractor in Corona, you’re really hiring someone to hold the risk on permits, grading, sequencing, and material lead times. Iron Beam Contractors carries that under one agreement. We don’t broker your kitchen to one crew, your roof to another, and your retaining wall to a third and hope they coordinate. We run the schedule, we pull the permits, and we stand at the inspection with the plans in hand. For a concrete driveway in the flat core, expect $4,500 – $12,000. A paver driveway runs $7,000 – $18,000. A full roof replacement in Corona runs $8,000 – $20,000. These are real Corona numbers, not national averages.
Single-Source Accountability
One contractor, every phase. Kitchen rough-in, window replacement, aluminum fence, paver patio, roof replacement: same contract, same point of contact. When the framing inspection runs late on a Thursday and the countertop template is scheduled for Friday morning, that’s our problem to solve. Not yours. We coordinate the trades because they work to our schedule and our standard, not to their own calendar.
Permit and Inspection Ownership
Corona’s building department expects engineered drawings on hillside additions and retaining walls over a certain height. We pull those permits and we get the inspections signed. If the city wants a compaction report on the engineered fill before we set a footing, that’s already in our quote. It won’t be a surprise change order at the end of month two. The paper trail is part of the job, not an add-on.
Trusted Brands We Service in Corona
We specify brands that hold up to Corona’s heat and wind. For fencing across 92877 and 92880, we install Jerith aluminum and ActiveYards systems, both engineered for the kind of gust loading that comes off the Santa Ana corridor. Bufftech vinyl holds its color through summers that run past 95 degrees without warping the way cheap vinyl does. For hardscape on those hillside lots, Belgard pavers carry the compressive strength and the documented specs that a retaining-wall inspection wants to see. We stock local parts for these systems in our service area, which means a warranty part or a matching panel isn’t a four-week freight wait for a Corona customer.
See the difference
Before
After
Before
After
Before
AfterCommon General Contractor Problems We See in Corona Homes
- Hillside drainage and shallow groundwater. Builders on the 91-side slopes routinely hit old citrus-farm irrigation pipes and groundwater before any footing is set. A quote without dewatering and obstacle allowances is a change order waiting to happen the moment the excavator bucket opens the trench.
- Engineered fill compaction failures. East-side lots in 92880 and 92883 were built on fill, and when the compaction report is missing or the slope setback wasn’t inspected, walls crack and shift under winter rain loading. We see this pattern constantly.
- 1950s-70s tract stock surprises. The flat-core homes in 92879 and 92882 look simple until you open a wall. Original stucco, galvanized rough-in, and slab-on-grade mean load-bearing surprises that a cheap quote intentionally scopes out, and the homeowner pays later.
- Santa Ana wind damage on unpermitted work. When a retaining wall or patio cover was built without an inspection sign-off, the first windstorm finds the weak point. Then there’s no documentation to support an insurance claim, and the homeowner eats the full repair.
Pricing for General Contractor in Corona, CA
Here’s what honest Corona pricing looks like in 2026. These are the ranges we quote, and the reason a hillside home lands on the high end is the grading, dewatering, and inspection sequence the lot demands.
| Project | Corona Price 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 |
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
What moves the number: lot slope, soil condition, whether we’re tying into a 1960s slab or a 1990s engineered pad, and the permit path your specific address demands. We don’t give a generic range and then revise it once we’re in the ground. The estimate is free, it’s written, and it’s scoped for your actual address in Corona. Call (833) 756-5936.
We Also Serve Cities Near Corona
Our crews cover the areas around General Contractor in Corona as well: Home Gardens, El Cerrito Corona, Eastvale, and Norco. If your project sits near the Santa Ana River boundary or up against the Norco hills, we’re already working streets you’d recognize. Same crew, same standards, same single contract.
Serving Corona, CA — Our Local Coverage Area
We’re based in the Corona 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 Corona
A retaining wall or addition on a Corona hillside lot has to meet the wind and storm loading requirements in the city’s adopted building code, which means engineered drawings, a compaction report on the fill, and inspection sign-offs at the footing and backfill stages. Products like Belgard pavers and engineered block systems carry documented load ratings that satisfy the inspector, and the signed paperwork becomes your proof of compliance. Call (833) 756-5936 if you need a wall assessed before the next Santa Ana season. Estimates are free.
Because the hillside lot requires dewatering, buried-pipe locates, engineered-fill compaction testing, slope setback inspections, and sometimes underdrain installation before a single footing is poured. The flat-core tract in 92879 or 92882 carries none of that, so the same square footage lands lower. Cheaper quotes on hillside work almost always mean those steps were skipped, and the invoice arrives later as a change order. Call (833) 756-5936 and we’ll show you the line items.
If a retaining wall or addition was built with a signed inspection record and documented compaction, an insurance claim after a wind or rain event has a paper trail that supports the loss. Undocumented work gets denied more often because the carrier can’t verify the structure met code when it was built. That’s why we don’t skip the sign-offs, even when they cost time. Call (833) 756-5936 before you start, not after the storm.
Yes. Corona requires permits for retaining walls over a certain height, any structural work on hillside lots, and electrical or plumbing rough-in during a kitchen or bath remodel. We pull them and we stand for the inspections. Unpermitted work is a liability at resale and a problem for insurance, so don’t let anyone sell you a no-permit discount. Call (833) 756-5936 for a free estimate that includes the full permit path.
It should include dewatering and groundwater handling on hillside lots, locates for abandoned citrus irrigation lines, compaction testing on engineered fill, slope setback inspections, permit fees, and inspection scheduling. A cheap quote leaves all of that out, then issues change orders mid-dig. Our quotes read like a risk list because that’s what they are. Call (833) 756-5936 for one that actually matches your lot.
Written by Nolan Driscoll, Owner at Iron Beam Contractors, serving Corona since day one.