Free in-home measure and quote — PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterFast, Reliable Door Installation Across Key Biscayne
Door installation in Key Biscayne runs roughly $1,800 to $6,500 for a standard entry door, and $2,500 to $12,000+ for hurricane-rated or custom architectural doors, depending on NOA requirements, hardware grade, and opening prep. That’s the honest range before we measure anything. Every door on this island has to meet Miami-Dade High Velocity Hurricane Zone code, and every frame fights salt air from both Biscayne Bay and the Atlantic at once. Call (844) 901-4551 and we’ll walk the site, spec the right product, and hand you a written quote before anything gets ordered.
Why Winslow Windows & Doors Is Key Biscayne’s Preferred Door Installation Company
Ed Winslow founded this company in 2011, and his name is on the door, literally and on every job we do in Key Biscayne. We’re not a national chain with a ticket number. We’re the local crew that shows up in uniform, background-checked, and knows that a 1970s condo slider on Crandon Boulevard has different failure modes than a post-Andrew spec home off Harbor Drive. Key Biscayne homeowners have dealt with enough vague estimates and no-show crews. They call us because we answer the phone at 2 a.m. and because the Done Right Promise means if it’s not done right, we come back and make it right. Period.
Our Door Installation team carries Miami-Dade NOA paperwork on every product we quote. That’s not optional on Key Biscayne. And we’ve learned the island’s quirks the hard way: salt pitting on aluminum jambs, corroded rollers that seize, flood-zone sill pans that eat a full day of prep. We quote accordingly. We also show up with a published address and license number, not a P.O. box. Seniors and veterans get a permanent 10% discount. Any repair over $200 takes $40 off. And if you have a written estimate from another company, we’ll give you a free second opinion.
Our Door Installation Services in Key Biscayne
Entry Doors
A new entry door in Key Biscayne has to do three jobs at once: meet HVHZ wind-load requirements, hold its finish against 360-degree salt spray, and look right on a home where architectural curb appeal is part of the property’s value. We install Therma-Tru and PGT entry systems with marine-grade hinges and stainless hardware as standard. No chrome-plated steel that pits in two years. We’ll also rebuild the rough opening if the original jamb has rot or corrosion, because hanging a new door on a compromised frame is just a future callback.
Hurricane-Proof Front & Entry Doors
This is the bread and butter of our work on Key Biscayne. Every replacement door in this ZIP code, 33149, has to carry a Miami-Dade Notice of Acceptance. We quote impact-rated front doors, side lites, and transoms with the NOA number written on the proposal, matched to the design pressure for your specific opening and floor height. CGI and PGT are our go-to product lines for this application. The price for a hurricane-proof entry door on Key Biscayne typically runs $4,200 to $9,800 installed, with custom sizes and architectural lites pushing higher.
French & Double Doors
French doors on Key Biscayne face the same code burden as any other opening but add the complication of a center mullion meeting rail that has to seal under positive and negative wind pressure. You also have to think about the interior: if the doors open into a room with millwork or cabinetry, we coordinate the swing, the threshold, and the reveal with your designer or architect before we order anything. A pair of impact-rated French doors in Key Biscayne usually lands between $6,500 and $14,000 depending on width, finish, and NOA configuration.
Replacement Doors
Most of our replacement work in Key Biscayne falls into two buckets. The first is older condo towers built in the 1960s and 70s with original aluminum sliders that have corroded beyond repair. The second is newer luxury homes where the impact door is structurally fine but the seals, weatherstripping, and rollers have degraded from salt exposure. Both jobs need a crew that understands the building envelope and the flood-zone threshold rules that apply to ground-floor and first-elevated-floor openings. Replacement doors here typically run $2,500 to $7,000, though a truly custom engineered opening can exceed that.
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’re an authorized installer for PGT, Therma-Tru, CGI, CWS, and ES Windows, and we keep a local stock of replacement rollers, hinges, and weatherseals for the most common Key Biscayne door systems. That means when a condo board approves a slider replacement and wants it done before the next hurricane season, we’re not waiting on a parts shipment from Orlando. We spec marine-grade stainless hardware from the start because we know the island’s salt air destroys anything less. Fast turnaround matters here, and it starts with having the right parts within reach and the right relationships with product reps who know Miami-Dade code.
Common Door Installation Problems We See in Key Biscayne Homes
- Corroded aluminum frames and jambs: The island’s double salt exposure, Biscayne Bay on one side and the Atlantic on the other, eats standard aluminum framing faster than any mainland Miami neighborhood. We regularly rebuild rough openings on 1960s and 70s condo towers in Key Biscayne where the original frame has pitted and lost structural integrity.
- Seized rollers and locks on sliding doors: Standard aluminum hardware that lasts a decade inland fails in two to three years here. On Key Biscayne, sliding glass door hardware has to be marine-grade stainless steel, without exception.
- Failed inspections due to flood-zone sill pans: Much of Key Biscayne falls in flood zones that impose specific threshold and sill pan requirements on ground-floor and first-elevated-floor doors. A crew that doesn’t account for this gets red-tagged and the homeowner waits another month for re-inspection. We build it into the quote from day one.
- Improper NOA matching for wind load: Every door product on Key Biscayne has to carry a Miami-Dade NOA matched to the design pressure of the opening. A product approved for a mainland Miami strip mall may not be rated for a third-floor condo on the island’s Atlantic side. We verify the NOA against the actual opening before we order, not after.
Pricing for Door Installation in Key Biscayne, FL
Here’s what moves the price on Key Biscayne: the number of openings, your floor height (higher floors carry higher design pressures), frame material, and whether the rough opening needs rebuilding. A standard entry door replacement runs $1,800 to $4,500. An impact-rated hurricane door runs $4,200 to $9,800. French or double doors run $6,500 to $14,000. True custom millwork, architectural glass, or designer-specified hardware pushes toward $15,000 or more. Call (844) 901-4551 for a free in-home measure and a written line-item quote. The price is fixed in writing before we order materials.
What Door Installation Costs in Key Biscayne
For impact windows and doors, expect $800 to $1,500 per window installed, $900 to $1,800 for impact single-hung units, $2,500 to $5,000 for large or custom openings, and $8,000 to $25,000 or more for whole-home packages. On Key Biscayne specifically, three factors inflate costs compared to mainland Miami: the dual salt-air exposure drives the hardware spec up (marine-grade stainless is standard for us, a premium over basic hardware), the flood-zone threshold requirements add prep labor on many ground-floor openings, and the island’s wind-load design pressures are among the highest in the state. One window or one door, or a whole-home package, the free measure and written quote is how we start every Key Biscayne job.
Florida Pays You Back
Florida incentive programs can meaningfully offset the cost of impact-rated doors in Key Biscayne. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, though funding rounds open and close, and the exact amount depends on your home and your application. Florida also exempts impact-resistant windows and doors from sales tax. At the federal level, the 25C energy credit covers 30% of product cost, up to $600 per year, on qualifying units. And after a wind-mitigation inspection ($75-$150), many homeowners see windstorm premium credits averaging around 25% on the windstorm portion of their policy. We can’t guarantee any of these numbers, your carrier and the program administrator set the final figures, but we’ll point you to the paperwork and make sure the product specs line up with what the incentive programs require.
We Also Serve Cities Near Key Biscayne
Our crews work throughout the island and the nearby mainland. If you’re across the Rickenbacker Causeway, we also handle Door Installation in Key Biscayne and surrounding communities like Coconut Grove, Coral Gables, Miami Beach, and Miami. Same live-answer phone, same NOA-verified products, same written pricing guarantee.
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 — Door Installation in Key Biscayne
Key Biscayne sits inside Miami-Dade County’s High Velocity Hurricane Zone (HVHZ), which mandates that every window and door product carry a Miami-Dade Notice of Acceptance (NOA), a certification stricter than Florida Product Approval alone. Mainland Miami addresses also fall under Miami-Dade code, but Key Biscayne’s barrier-island location adds a layer of wind-load severity that not every mainland product configuration is approved for. The NOA number has to match your opening’s design pressure and floor height. Call (844) 901-4551 and we’ll verify the NOA before quoting anything.
Marine-grade stainless steel, every time, no exceptions. Standard aluminum hardware lasts a decade in Orlando but seizes or pits within two to three years on Key Biscayne because the island is completely ringed by salt water, Biscayne Bay to the west and the Atlantic to the east. This is the single most common failure we see on older sliding doors in the island’s condo towers, and it’s fully preventable at the quote stage. Get a free second opinion on any written estimate by calling (844) 901-4551.
Yes. We’ve replaced corroded 1970s aluminum sliders in Key Biscayne condo towers, including a Gulf Stream Drive job where the original jamb and sash had pitted so badly from salt spray that we rebuilt the rough opening then dropped in a PGT impact-rated unit with a Miami-Dade NOA. Condo work often involves board approvals, freight elevator scheduling, and specific building insurance requirements. We coordinate with the association paperwork, but the homeowner owns the quote and the schedule. Call (844) 901-4551 to get started.
Yes, and they affect them more than most homeowners expect. Much of Key Biscayne falls within FEMA flood zones that require specific sill pan and threshold details on ground-floor and first-elevated-floor door openings. Those details add prep labor and materials, and if they’re not in the quote, they show up later as a surprise change order or a failed inspection. We write the flood-zone scope into the estimate from the first site visit. The price is fixed before anything gets ordered.
Because on Key Biscayne, the long-lead items custom millwork, architectural glass, designer-specified hardware can run four to six weeks, and some NOA configurations add another week. If your quote isn’t locked in writing before order, you’re exposed to supplier price changes, scope drift, and a schedule that slips without accountability. We fix the price when we write the proposal, not when the truck pulls up. Estimates are free; call (844) 901-4551 to schedule yours.
Contact Winslow Windows & Doors in Key Biscayne
Ed Winslow’s name is on the company, and the Done Right Promise is on every door we install. If it’s not done right, we make it right. That’s the commitment. Call (844) 901-4551 for a free estimate, a second opinion on a written quote, or a straight answer about what your Key Biscayne door project should cost. The one down the road.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Key Biscayne since 2011.