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Remodeling Company in Key Biscayne, FL
Home remodeling in Key Biscayne means working on properties that sit on a barrier island, subject to some of the strictest building regulations in Florida. We’re a general contractor serving Key Biscayne homeowners with kitchen, bathroom, and whole-home remodeling, and we put a written price and a written 365-day guarantee in front of you before any work begins. If you’re planning a remodel, call (850) 988-7559 and we’ll walk through what your project needs.
Why Key Biscayne Homes Are Different
Key Biscayne’s housing stock divides into three broad groups: luxury single-family homes built to elevated floodplain standards, mid-rise condominiums along Crandon Boulevard, and older concrete structures from the 1950s through the 1970s. Many of those older buildings still carry original aluminum wiring and single-pane jalousie windows that fail modern wind-load tests. When we open a wall in one of these units, we’re rarely surprised by what we find; the work simply has to account for it.
This is a barrier island, and the construction market reflects that. Hurricane resilience, flood mitigation, and FEMA regulations drive decisions here more than almost anywhere else in the state. Elevated foundations, impact-rated windows and doors, corrosion-resistant hardware, and moisture-resistant materials are not upgrades in Key Biscayne. They’re the baseline. High humidity adds another layer: anything we install has to stand up to salt air and sustained moisture, and we build to that standard on every project.
Permitting also moves differently here. Coastal construction requires documentation for wind load, elevation, and floodproofing that a remodel in a mainland suburb would never trigger. We handle that paperwork as part of the job, and the written price you receive includes the permits and inspections from the start.
Styles & brands we work with







Our Main Key Biscayne Services
Most Key Biscayne homeowners call us for one of three things: a full general contracting engagement, a kitchen remodel, or a bathroom remodel. Each has its own page with detailed pricing, but here’s the short version of how each works locally.
General Contractor in Key Biscayne
Acting as your general contractor in Key Biscayne means coordinating every trade, permit, and inspection on a coastal property. Remodels here frequently touch structural elements: relocating walls in a 1960s concrete condo, upgrading electrical systems that still run on original aluminum wiring, or reinforcing openings for impact-rated windows. We manage the full sequence from demolition through final inspection, and the written price you receive covers every phase. General Contractor in Key Biscayne has the full breakdown of how we run these projects.

Bathroom Remodeling in Key Biscayne
Bathrooms on a barrier island contend with constant humidity and salt air, which accelerates wear on fixtures, caulking, and substrates that would last decades inland. In older Key Biscayne condos, a bathroom remodel often becomes a moisture-correction project: pulling out drywall behind tile that was never meant for this climate and rebuilding with a proper cement board substrate. We quote the work in writing before demolition starts. Bathroom Remodeling in Key Biscayne covers the specifics.

Kitchen Remodeling in Key Biscayne
Kitchen remodeling in Key Biscayne often involves working around concrete structure and older mechanical systems. Many of the mid-century buildings limit where a sink or range can move without serious plumbing rework, which is a conversation we have early and honestly. Cabinet lines like KraftMaid and Wellborn, paired with Cambria or Silestone countertops, hold up well in this climate when installed correctly over moisture-resistant materials. Kitchen Remodeling in Key Biscayne has full pricing and process details.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Home Remodeling in Key Biscayne

Home remodeling in Key Biscayne usually means one of two things: modernizing an older condo unit in a mid-rise building, or taking a single-family home down to the studs and rebuilding it to current coastal code. Whole-house remodels on this island regularly involve elevation work, impact-rated glazing, corrosion-resistant fasteners, and floodproofing details that a mainland remodel would never encounter. The homes along Crandon Boulevard and the surrounding streets were built for a different climate era, and every renovation has to bring them forward. We quote the entire scope in writing before a single wall comes down. You can read more about our process on the Home Remodeling page.
Whole House Remodel
Signs you need it
You’re living with original jalousie windows, aluminum wiring, a floor plan that doesn’t work, or the building is requiring wind-mitigation upgrades before any permitted renovation.
What it costs in Key Biscayne
A whole house remodel in Key Biscayne typically falls between $45,000 and $130,000 depending on square footage, structural changes, and the level of finish you choose.
How we do it
We start with a full walkthrough and measurements, produce a written scope and line-item price, then manage the permit, demolition, structural work, systems upgrades, and finishes through final inspection.
Luxury Home Remodeling
Signs you need it
You want a high-end renovation that meets both your design standard and Key Biscayne’s coastal code requirements without cutting corners on either.
What it costs in Key Biscayne
Luxury home remodeling on the island typically runs $45,000 to $130,000, with the upper end reflecting premium materials, custom cabinetry, and structural or elevation work.
How we do it
We select materials that perform in salt air and high humidity, coordinate specialty trades, pull every permit, and stand behind the finished job with our written 365-day guarantee.
What Home Remodeling Costs in Key Biscayne
| Item | Typical range in Key Biscayne |
|---|---|
| Whole house remodel | $45,000 – $130,000 |
| Luxury home remodeling | $45,000 – $130,000 |
| Kitchen remodel | $14,000 – $45,000 |
| Bathroom remodel | $9,000 – $28,000 |
The written price we hand you before work starts is the number on the invoice. The factors that move cost on the island are structural changes, elevation requirements, and material upgrades driven by coastal code, all of which we itemize up front.
How long does a whole house remodel take in Key Biscayne?
Most whole house remodels here take four to eight months, depending on scope and permit review times. Coastal permits in Key Biscayne can add several weeks, which we build into the schedule from day one.
Do I need special permits for a remodel in Key Biscayne?
Yes. Remodels in Key Biscayne require permits that address wind load, elevation, and floodplain compliance. We prepare and submit the full permit package as part of the written scope.
Brands We Service in Key Biscayne
We install and service product lines that hold up in coastal conditions: GAF and CertainTeed roofing materials, James Hardie siding, KraftMaid and Wellborn cabinetry, Cambria and Silestone countertops, and Kohler and Moen fixtures. Most replacement components are stocked at our South FL distribution center, which keeps turnaround reasonable even during peak season. See our brands for the full list.
See the difference
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AfterPricing for Remodeling Company in Key Biscayne, FL
| Service | Typical range in Key Biscayne |
|---|---|
| Kitchen remodel | $14,000 – $45,000 |
| Small kitchen remodel | $9,000 – $20,000 |
| Cabinet installation | $4,000 – $13,000 |
| Countertop installation | $2,000 – $6,500 |
| Kitchen island installation | $3,000 – $10,000 |
| Bathroom remodel | $9,000 – $28,000 |
| Small bathroom remodel | $5,000 – $12,000 |
| Walk-in shower installation | $4,500 – $12,000 |
| Tub-to-shower conversion | $3,500 – $10,000 |
Prices in Key Biscayne run higher than mainland Miami for two reasons: material upgrades tied to coastal code and the additional engineering and permitting each project requires. Every written quote we provide includes those costs as line items, so the number you sign is the number you pay. No change orders, no verbal guesswork.
Neighborhoods We Serve in Key Biscayne
We work throughout Key Biscayne, from the mid-rise condos along Crandon Boulevard to the single-family streets on the island’s interior. Response times for estimates are typically within a few business days, with scheduling coordinated from our South FL office.
- Crandon Boulevard corridor
- Harbor Drive area
- Mashta Island
- West McIntyre Street
- The Village of Key Biscayne
Service Area – Cities Near Key Biscayne
Penhallow Remodeling serves Key Biscayne and the surrounding South Florida communities from our Miami-area office. If you’re in a neighboring city, we can help there too: Miami, FL, Hialeah, FL, and North Miami Beach, FL are all within our service area.
Serving Key Biscayne, FL - Our Local Coverage Area
We’re based in the Key Biscayne 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 Remodeling Company in Key Biscayne
Yes. Many Key Biscayne condos and HOAs require board approval before renovation begins, with specific rules about working hours, elevator use, and construction noise. We prepare the documentation and attend board reviews if needed. Call (850) 988-7559 and we can help you figure out what your association requires.
We plan Key Biscayne projects around the Atlantic hurricane season, which runs June through November. Exterior and structural work gets scheduled to avoid the peak storm window when possible, and we coordinate with your building’s storm preparation requirements.
Start dates depend on scope and permit review time, which can range from two weeks to two months or more on the island. We give you a written schedule with a real arrival window at contract, and we stick to it.
If you’re planning a remodel on Key Biscayne and you want a written price, a real schedule, and a 365-day guarantee before work starts, call (850) 988-7559. Estimates are free, and a live person answers.
What happens when you call
- 1A real person answersNo phone trees - talk to a local construction pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Key Biscayne Customers Say
"Good remodel of two bathrooms. A fixture came in wrong and added a few days, but they ate the cost of fixing it. Finish work is excellent and they cleaned up daily."
- Rudy Mackey"Redid two bathrooms at once. The crew protected the floors and cleaned up every single day before leaving. Quote was detailed and there were no mystery charges at the end."
- Tricia Dawson"Full home refresh before we sold. They were straight about what was worth doing and what wasn't to get our money back. On time, on budget, and it sold in a week."
- Monica Vaughn












