Free in-home measure and quote — PGT, CGI and CWS impact lines compared on your actual openings, style by style
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After
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AfterFast, Reliable Roof Replacement & Installation Across Key Biscayne
A full roof replacement on Key Biscayne typically runs $18,000 to $45,000 for a single-family home, with metal and tile systems at the upper end and architectural shingle re-roofs at the lower end. Most projects take 3 to 7 days once materials arrive, and custom fabrication for metal or tile runs 4 to 6 weeks before installation begins. If you’re looking at a roof that’s leaking, lifting at the eave line, or showing rust stains from the island’s relentless salt air, call us at (844) 901-4551 for a free in-home measure and written quote.
Winslow Windows & Doors has been installing replacement roofs across Key Biscayne for years, and we know exactly what this island demands from a roof assembly. The double salt exposure, the HVHZ wind zone, and the flood elevation rules on ground-floor and first-elevated-floor structures shape every quote we write here. You don’t get a mainland Miami roof system on Key Biscayne. You get a roof spec’d for a barrier island with salt water on both sides.
Why Winslow Windows & Doors Is Key Biscayne’s Preferred Roof Replacement & Installation Company
Ed Winslow founded this company in 2011 and has run it owner-operated ever since. His name is on the door, and he’s the one who stands behind the Done Right Promise: if it’s not done right, we make it right. That’s a standard of accountability written into every jobRoof Replacement & Installation work.
Our crews work Key Biscayne regularly. Dispatch and scheduling run through our Miami office, and our uniformed, background-checked technicians know the Rickenbacker Causeway commute, the guard-gate protocols at communities like Key Colony and Ocean Club, and the specific documentation condo boards require before a roofing crew steps onto the property. When a Villa Vizcaya homeowner calls about a wind-damaged roof section, we can put eyes on it quickly because we’re already working the island.
We’re an authorized installer for CGI, PGT, and Therma-Tru, among eight premium brands. On the roofing side, that means we spec products with Miami-Dade Notice of Acceptance (NOA) numbers already on file, and we pull the re-roof permit, schedule the inspections, and hand you a documented compliance package when the job closes. No shell companies, no licensed-in-name-only subcontracting. Our license number is published. Our address is published. You can call 24/7 and a live person answers.
Our Roof Replacement & Installation Services in Key Biscayne
Wind-Load Rated Roof Assembly (HVHZ Compliant)
Key Biscayne sits in the highest design pressure zone in Miami-Dade County. A roof deck and fastening schedule that passes inspection in mainland Miami will fail HVHZ uplift tests on this island. Every replacement roof we install on Key Biscayne is engineered to the current Florida Building Code HVHZ requirements, with fastener spacing, deck attachment, and edge-securement methods matched to the opening’s design pressure rating. We don’t guess at the wind load. We calculate it.
Corrosion-Resistant Flashing and Fastener Specification
This is where out-of-area contractors get burned on Key Biscayne. Standard galvanized flashing at roof edges and penetrations will rust through in as little as two seasons here because the chloride-laden air comes from both Biscayne Bay and the Atlantic simultaneously. We specify stainless steel clips, fasteners, and flashing on every roof replacement on the island. For tile and metal systems near the water on streets like Harbor Drive and Mashta Drive, we go further: PVDF-coated panels and marine-grade underlayment rated for continuous spray exposure.
Shingle, Tile, and Metal Roofing
Key Biscayne’s housing stock runs from 1960s and 70s mid-rise concrete condos to post-Andrew luxury single-family homes. Each calls for a different roof system. Barrel tile looks right on the Mediterranean-style homes in the Village of Key Biscayne, but concrete tile is heavy and demands a structural check before we spec it. Standing seam metal is the right call for low-slope sections on older condo buildings. Architectural shingles offer strong HVHZ performance at the most approachable price point. We’ll walk you through what fits your structure, your elevation, and your budget.
Post-Installation Wind Mitigation Inspection Support
After the roof is on and the final county inspection passes, the wind mitigation inspection is what actually moves your insurance premium. We coordinate that inspection, ensure the inspector has access to the NOA paperwork and installation photos, and confirm the roof deck attachment and secondary water barrier are documented correctly. The difference between a roof that passes and a roof that’s properly documented can be a 25% premium credit on the windstorm portion of your policy. We make sure you get the credit.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Key Biscayne
We install and service roofing systems from brands engineered for South Florida’s coastal conditions, including CGI, CWS, and ES Windows. Our Key Biscayne customers get access to the same supply chain and warranty support that our window and door clients rely on. When a replacement component is needed mid-job, we source it fast because we already work this island’s supply routes. No waiting on parts shipped from out of state while your roof sits open through a summer squall.
Common Roof Replacement & Installation Problems We See in Key Biscayne Homes
- Rust-through at the eave line from dual salt exposure. The island’s geography means salt mist comes at the roof from the bay side and the ocean side. Galvanized flashing and standard fasteners corrode here faster than nearly anywhere else in South Florida. We’ve pulled off 10-year-old flashing that looked like it survived 30 years on the mainland.
- Failed wind-uplift tests on under-spec’d decks. Homes roofed before the current HVHZ code, or roofed by crews that used mainland Miami specs, frequently fail the nail-pattern and deck-attachment portion of a wind mitigation inspection. The fix is a full re-deck, not a patch job.
- Missing or incomplete NOA documentation. If the product approval paperwork isn’t on file with Miami-Dade, an insurance claim for wind damage after a storm can be denied outright. We see this on homes that were re-roofed by out-of-area companies that didn’t pull the proper re-roof permit.
- Skylight and curb flashing failures on mid-rise condos. Older condo buildings along Crandon Boulevard often have original curb-mounted skylights with degraded sealant. In a marine environment, the sealant fails from salt and UV within a few years. We replace the curb assembly and flashing, not just the sealant bead.
Pricing for Roof Replacement & Installation in Key Biscayne, FL
For a single-family home on Key Biscayne, an architectural shingle re-roof with HVHZ-compliant underlayment typically runs $18,000 to $28,000 depending on square footage, tear-off layers, and deck condition. Standing seam metal roofs on the island land between $32,000 and $55,000, driven by the stainless fasteners, PVDF coatings, and marine-rated underlayment this environment demands. Concrete or clay barrel tile systems range from $45,000 to $75,000 plus structural reinforcement if the existing deck can’t carry the load. Mid-rise condo roof sections are priced per square foot and depend on crane access, tie-off anchors, and building board requirements.
Every quote we write for Key Biscayne includes the re-roof permit, the Miami-Dade product approval documentation, and the post-installation wind mitigation inspection support. Get a free in-home measure and written line-item quote. No change orders once the scope is set.
What Roof Replacement & Installation Costs in Key Biscayne
The numbers above reflect a full tear-off and replacement. What moves your price in Key Biscayne specifically: the number of roof penetrations (vents, skylights, HVAC curbs), the deck condition under the old roof, whether you’re in a flood zone that requires specific sill and threshold detailing on adjacent work, and the floor height on condo buildings. Taller structures mean crane work and different safety rail requirements. Single-story homes are more straightforward.
We also repair rather than replace when that’s the honest call. A localized section of failed flashing doesn’t need a full re-roof. A deck that’s structurally sound but has a failed underlayment layer might only need a selective tear-off. We’ll tell you what you actually need, show you the damage photos, and write a quote in plain language. Call (844) 901-4551 to schedule your free in-home measure.
Florida Pays You Back
Key Biscayne homeowners have three real incentive paths to offset a roof replacement that meets wind-mitigation standards. First, the My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, including HVHZ-compliant roof assemblies. Second, Florida exempts impact-resistant building materials from sales tax, which applies to the impact-rated roof components you may install alongside the roof work. Third, the federal 25C energy credit can return 30% of product cost on qualifying energy-efficient units, up to $600 per year, for roof-adjacent components like insulation and reflective underlayments that qualify.
On top of the incentives, a documented wind mitigation inspection after a code-compliant roof replacement typically opens the door to a windstorm premium credit averaging around 25% on the wind portion of your policy. The inspection itself runs $75 to $150. Programs and carrier rules change, so check with your agent, but the documentation we hand you at project close is exactly what inspectors and insurance underwriters want to see.
Why Key Biscayne Roofs Demand a Different Specification
Key Biscayne is a true barrier island. Biscayne Bay sits to the west, the Atlantic to the east, and there’s no mainland buffer anywhere. That means every roof replacement on the island must specify corrosion-resistant flashing, fasteners, and underlayment rated for continuous marine spray from multiple exposures. Mainland Miami ZIP codes don’t carry this requirement in the same combined way, and a roof quote that works in Coral Gables will not hold up on Key Biscayne.
Our crew replaced a corroded metal roof on a mid-rise condo on Crandon Boulevard where the original galvalume panels had rusted through at the eave line from years of constant salt mist. We specified Miami-Dade NOA-approved standing seam panels with a PVDF coating and stainless steel clips, plus a peel-and-stick high-temp underlayment rated for HVHZ wind uplift. The new roof passed the county’s post-installation wind mitigation inspection, and the association’s insurance carrier now recognizes the full large-missile rating. That’s the difference between a roof that’s “installed” and a roof that’s documented, rated, and insurable.
If you’re weighing impact windows versus hurricane shutters as part of the same project, the logic is straightforward. Shutters only work when someone is there to deploy them, and they do nothing for wind-driven rain that gets past the opening. Permanent impact protection, installed to the same NOA standard as your roof, protects the structure whether you’re home or riding out the storm somewhere else. When you’re already pulling permits and scheduling inspections for a roof, it’s the natural time to close that gap.
We Also Serve Cities Near Key Biscayne
Winslow Windows & Doors serves the full Miami coastal corridor. You’ll find our roofing crews in Coconut Grove, where older wood-frame homes need HVHZ deck upgrades, and in Coral Gables, where barrel tile and Mediterranean profiles dominate the streetscape. We also work Miami Beach and the City of Miami, bringing the same NOA-documented, code-compliant roofing standard everywhere we go.
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 — Roof Replacement & Installation in Key Biscayne
Every roof covering, underlayment, fastener, and flashing component installed on Key Biscayne must carry a current Miami-Dade NOA number. Miami-Dade County’s High Velocity Hurricane Zone (HVHZ) designation, combined with the Florida Building Code, requires that all roofing products for use in the HVHZ have a Notice of Acceptance specific to the product and its installation method. We pull the NOA numbers for your exact roof assembly before we write the quote, and we include the documentation in your project close-out package. Call (844) 901-4551 to have us spec your roof and pull the approvals for you.
Yes. The wind mitigation inspection is separate from the building department’s final inspection and is what insurance companies use to apply windstorm premium credits. After your re-roof passes the county inspection, we coordinate the wind mitigation inspection, ensure the inspector has access to the NOA paperwork, installation photos, and deck-attachment documentation, and confirm the secondary water barrier is recorded. The result is a uniform mitigation verification form your carrier can act on immediately.
Because Key Biscayne is a barrier island with salt water on both sides, the airborne chloride concentration is dramatically higher than inland Miami. Standard galvanized fasteners and clips will corrode and fail in as little as two to three years in this environment. Stainless steel is non-negotiable on Key Biscayne roof replacements, even when the same roof system installed in Coral Gables or Doral could get away with galvanized. We spec stainless on every roof we touch on the island, no exceptions.
No. Coral Gables sits on the mainland and does not experience the continuous dual-salt-spray exposure that Key Biscayne does. A standard synthetic underlayment that works fine in Coral Gables will degrade faster here. For Key Biscayne, we specify a peel-and-stick high-temperature underlayment rated for HVHZ wind uplift and continuous marine exposure. The underlayment is your last line of defense if the roof covering blows off in a hurricane, and on this island it has to be the marine-rated version.
It can reduce your premium through the wind mitigation credit, which averages around 25% on the windstorm portion of your policy after a properly documented inspection. The key is documentation: without the NOA paperwork, the permit record, and the wind mitigation form on file, the credit doesn’t happen. We hand you a complete compliance package at project close, and we coordinate the inspection that turns your new roof into a premium reduction. Call (844) 901-4551 for a free estimate and full documentation on every replacement roof we install on Key Biscayne.
Call Winslow Windows & Doors for Your Key Biscayne Roof Replacement
Ed’s name is on the door, and his number is the one you’re about to dial. We answer live, 24/7, and we’ll schedule a free in-home measure on Key Biscayne whenever you’re ready. You’ll get an honest assessment of your roof, a written line-item quote, and a plan that meets Miami-Dade’s HVHZ requirements with documentation your insurance company will actually accept. No pressure, no vague estimates, no disappearing warranty.
Call (844) 901-4551 today. The one down the road.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Key Biscayne since 2011.