We render your project — residential or commercial — in 3D until it matches your vision exactly. You sign off on the render, and that locks the scope and the budget. From there it's transparent cost-plus billing: open books, not a marked-up lump sum.
We render your project until it matches your vision. Your sign-off locks the scope and the budget — so nothing drifts once we start, for either side.
With cost-plus billing you pay the real cost of materials and labor plus one agreed fee. You see where every dollar goes.
Progress, budget position, schedule status, and upcoming decisions — in writing, every single week.
Four disciplined phases take you from first conversation to a clean handover — each with deliverables you can hold in your hands.
Before anything is committed, we verify the site, define the scope in detail, and build an itemized estimate — setting the budget and schedule bands you'll work from. You make the big decisions up front.
We render your project in 3D and refine it until it matches your vision. When you sign off, that render locks the scope and the budget — it can't quietly drift once we begin, and the cost-plus terms are set in writing.
We build to the approved render with open-book, cost-plus billing — you see real costs as they happen. Every change is documented, priced, and approved by you before any work proceeds.
A disciplined finish — final walkthrough, documented completion, and a clean, confident handover of your new space.
Before a wall ever moves, you see your finished space in 3D and sign off on exactly what we'll build. It's the clearest picture of what working with Serrano looks like.
Each of these is a 3D render — the same kind of visualization you approve before we build. As projects are completed, their finished photos will sit beside their renders here.
Full-scope renovations, additions, and structural reconfigurations — not minor cosmetic updates.
Functional, durable kitchens engineered around how you actually live.
Clean, precise builds with watertight planning and finishes that last.
Accessory dwelling units delivered with permits, planning, and full oversight.
Wall removals and structural reconfigurations done safely and to code.
Comprehensive transformations managed as one controlled program.
Seamless square-footage additions that integrate with your existing home.
Serrano Construction exists for one reason: to engineer the predictable bottlenecks out of remodeling — the runaway budgets, the creeping scope, the silent weeks — for homeowners and businesses across Southern California.
What makes Serrano dependable is how every project is run. You approve a 3D render before anything is committed. You see real numbers through open-book, cost-plus billing. You get a written report every week. Predictability isn’t a promise here — it’s built into the process.
So whether it’s a single room, a full-home renovation, or a commercial build, the same discipline applies — and taking on a major project with Serrano feels less like a leap of faith than a plan you can already see.
It starts with a conversation and a paid preconstruction phase — where we render your project and define the scope, budget, and schedule before a single wall comes down.
Start With PreconstructionTell us about your project. We'll determine alignment in an initial consultation, then begin with a paid preconstruction phase to define scope, budget, and schedule.
Thanks — we'll be in touch within one business day to discuss alignment.
Clarity before construction protects both the homeowner and the project. During preconstruction we verify site conditions, define scope, establish budget parameters, and outline a realistic schedule band — reducing risk and letting construction proceed with alignment rather than assumptions.
Typically site verification, a detailed 3D render, full scope definition, an itemized estimate, and schedule forecasting. The goal isn't just a pretty picture — it's the signed-off spec that locks scope and budget before demolition begins.
We use a cost-plus model: you pay the actual cost of materials and labor plus one clearly agreed fee for our overhead and management. The 3D render and a detailed estimate define the scope and a budget you sign off on before we start — and because the books stay open, you see where every dollar goes, with no marked-up lump sum and no incentive to cut corners to protect a margin.
No change to scope proceeds without written documentation of cost and schedule impact. All changes require signed approval before execution — protecting clarity and preventing reactive decisions.
Orange, Los Angeles, Riverside, and San Bernardino Counties across Southern California.