Remodeling & Construction in Mandarin, Jacksonville
Mature homes in one of Jacksonville’s older established areas.
Good bones, dated plans
Mandarin work is mostly about reworking what is already there. The houses are solid and the area is established; what dates them is the layout, and layout is a structural question rather than a decorating one.
That is the work our licence class exists for. GIL Renovation Services holds Florida licence CBC1269967 as a Certified Building Contractor, so removing a wall that carries load, adding square footage, or reworking a plan is permitted, inspected work we take on ourselves rather than hand off.
Mandarin sits between our Clay County base and the rest of Duval, so it is on our normal route rather than a special trip.

What the housing stock here means for your project
Mandarin is a large established area of southern Jacksonville along the east bank of the St. Johns River, and its housing stock is noticeably older than the subdivisions further south in St. Johns County. That generally means solid homes with dated layouts — the work here tends to be opening up kitchens, reworking bathrooms, and adding square footage rather than starting from scratch. It sits between our Clay County base and the rest of Duval, so it is on our normal route.
Opening up a dated layout
The most common request we get in Mandarin is making the kitchen and living space read as one room. Whether that is straightforward depends entirely on whether the wall in question carries load.
Where it does, the fix is a properly sized beam and a load path carried down to the foundation — engineered, permitted, and inspected. It is not a judgement call made on site with a sledgehammer.
Adding on to an established home
An addition here has to look like it was always part of the house. We match rooflines, siding, and trim, and we detail the structural tie-in deliberately so the new and old sections move together instead of cracking apart at the joint.
Before any design work, we confirm what your parcel allows. Setbacks, lot coverage, and easements are set by your county and zoning district and differ across the four counties we build in, so we check yours rather than quote a number.
What we build most in Mandarin
The three services that come up most often on established homes with more space than their floor plan makes usable.
Everything else we build in Mandarin
The rest of our nine services, available here exactly as they are everywhere else we work. We do not offer roofing or handyman services.
Licensed & insured
Florida Certified Building Contractor CBC1269967, active through August 2028, with $1,000,000 general liability and a $2,000,000 aggregate.
Permits handled
We pull and manage every permit. Our licensed plumbing and electrical subcontractors pull their trade permits under our master permit.
One-year warranty
Every project carries a one-year workmanship warranty across the whole job — not just selected trades.
Mandarin project questions
The five questions homeowners ask us before hiring anyone, plus two about building in Duval County.
It depends on the size and scope of the work, so we price every project individually after seeing it in person. As a concrete reference point, a small bathroom of roughly 7x5 typically runs $10,000 to $14,000, and a master bathroom typically runs $17,000 to $35,000, with materials included in both. Your written proposal arrives within 48 hours of the on-site consultation and lays out the full scope and price, so you are never comparing guesses. Estimates and consultations are free.
We provide them. Through our partnership with Floor & Decor you work directly with an in-store designer to choose colours, tile, and finishes, and your selections go onto a form under our account. From there we purchase, pick up, and deliver everything to the job site. You get to make the fun decisions without managing orders, deliveries, or returns.
Yes. GIL pulls and handles all permits for your project — that is part of what you are hiring a licensed contractor to do, and it is included. Our licensed plumbing and electrical subcontractors pull their own trade permits under our master permit. You do not need to contact the building department or schedule an inspection yourself.
We give you a schedule in the written proposal and we finish on or ahead of it. A small bathroom is usually about 7 days including permitting; a master bathroom is typically 2 to 3 weeks. Larger work such as an addition or new construction runs longer and is scheduled specifically for your project. We complete 30 to 40 projects a year, so our timelines come from experience rather than optimism.
Cesar Perdomo, and he manages customers exclusively. This is the structural difference at GIL: our business partner runs the job sites, so Cesar is never pulled onto a roof or under a house when you call. At most contracting companies one person does both jobs, which is exactly why homeowners cannot reach their contractor mid-project. Someone here is always reachable by phone — no run-arounds and no no-shows.
Yes. GIL Renovation Services pulls and manages every permit your Mandarin project needs, including the submission, any corrections that come back, and the scheduling of each inspection in Duval County. Our licensed plumbing and electrical subcontractors pull their own trade permits under our master permit. You never need to contact the building department or book an inspection yourself. Requirements and review times differ between jurisdictions and change over time, so we confirm exactly what your specific project needs before work begins rather than working from an assumption.
Mandarin sits in Duval County, and we build across Duval, Clay, St. Johns, and Nassau counties — Jacksonville, Orange Park, Green Cove Springs, Fleming Island, Mandarin, St. Augustine, Ponte Vedra, Nocatee, St. Johns, and Fernandina Beach. Being based in Orange Park, FL keeps all of that inside a comfortable drive, with Jacksonville our largest market. If you are just outside that footprint, call and ask: we would rather tell you honestly whether we are the right company for your job than take on work we cannot schedule properly.
Planning a project in Mandarin?
Tell us what you have in mind. We will come out, take measurements, confirm what your property allows, and put a full written proposal in your hands within 48 hours — free, with no obligation.
State-Certified Building Contractor CBC1269967 · Monday–Friday, 9:00am – 5:00pm
