Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Custom & Geometric Windows Across Longboat Key
Custom and geometric windows in Longboat Key cost $1,100 to $5,000 per opening installed, with full condo-unit replacements typically running $12,000 to $25,000 when you’re tearing out 1970s jalousie walls on Gulf of Mexico Drive. Most fabrication takes four to six weeks, and installation itself can often be completed in as fast as a single day once your units arrive. If you own a Gulf-front condo with corroded trapezoid glass or a bay-side home with a failing arched transom, call (941) 267-0779. We’ll send someone out to measure, walk the HOA paperwork with you, and hand you a written quote you can actually plan around.
We’re Winslow Windows & Doors, and we’ve been replacing salt-eaten window systems on barrier islands long enough to know that Longboat Key is not Bradenton. It’s not Sarasota proper. It’s a narrow strip of land getting hit with salt spray from two directions at once, and the window specs that work fine a mile inland don’t survive here. Ed Winslow’s name is on the door, and on every job we do. That matters when the job is a nine-foot arched impact window in a wind zone where the wrong frame alloy fails inside a decade.
Why Winslow Windows & Doors Is Longboat Key’s Preferred Custom & Geometric Windows Company
Longboat Key doesn’t need another mainland window crew. It needs a company that has pulled permits on both sides of the Manatee-Sarasota county line, that has walked HOA milestone-inspection paperwork with condo boards on Gulf of Mexico Drive, and that has seen what two-side salt exposure does to standard aluminum corners on a geometric window. We have. The island’s building department and its associations don’t treat custom shapes as decorative; they treat them as structural openings in a high-velocity wind zone. We prepare every permit packet with the correct Florida Product Approval or Miami-Dade NOA documentation for the specific county your building sits in.
Longboat Key homeowners call us because the person who answers the phone at (941) 267-0779 is a live human, 24 hours a day. No call center, no ticket number, no next-business-day callback. Our technicians are background-checked and arrive in uniform, so you know exactly who’s at your door before you open it. We’ve built our reputation on condos and single-family homes here by doing what we said we’d do, at the price we quoted, with materials that will still be sealing properly when the next milestone inspection comes around.
Local knowledge matters on this island more than anywhere else in the Sarasota-Bradenton market. A north-island condo in Manatee County can demand different wind-load documentation than a nearly identical building two miles south in Sarasota County. The Town of Longboat Key runs one building department, but the county backing paperwork changes at the line. Out-of-area window companies bidding bulk condo contracts miss this routinely. We don’t, because we’ve been through it too many times to count.
Our Custom & Geometric Windows Services in Longboat Key
Custom window work on Longboat Key isn’t a side category for us. It’s a core service, because the island’s building stock demands it. From 1970s condo towers on Gulf of Mexico Drive to mid-century bay-side ranch homes, this barrier island is full of openings that don’t fit a stock catalog window. We build for what’s actually there. Our Custom & Geometric Windows team handles every shape you’re likely to encounter from the north end of the island to the Sarasota County line.
Custom Impact Windows
Custom impact windows in Longboat Key typically run $1,100 to $2,800 per opening for non-standard shapes, and they’re the baseline requirement for any replacement here, not an upgrade. The island sits in a high-velocity wind zone that mandates impact-rated glazing for permitted work. Standard insulated glass from an inland supplier won’t pass plan review, and it wouldn’t protect you anyway when the next Gulf storm pushes surge over Gulf of Mexico Drive. We spec laminated glass with Miami-Dade NOA or Florida Product Approval ratings matched to the actual design pressure of each opening, never a one-rating-fits-all approach.

Geometric & Shaped Windows
Triangle, trapezoid, parallelogram, pentagon windows that follow a roofline or stairwell. These shapes trap salt spray in corners that rectangular windows simply shed, which is why Longboat Key geometric windows fail earlier than the same shapes installed in Palmetto or Osprey. We build them with marine-grade aluminum or stainless steel hardware from day one. The price is higher than a stock rectangle, but the alternative is a window that starts pitting at the corner joints within five to seven years.

Arched & Curved Windows
Arched and curved windows on Longboat Key need more than an impact rating; they need frames rigid enough to handle offshore storm winds flexing large unsupported glass panels. The stress concentrates at mullion-free geometric joints, and that’s where seal failures start on older arched units in Gulf-front buildings. We fabricate true-radius arches and curved transoms in impact-rated laminated glass, with frame reinforcement specified for the actual wind speed your section of the island sees. Custom fabrication runs four to six weeks; installation is typically one to two days per opening.

Oversized Openings
Oversized custom openings in Longboat Key condos, think ten-foot sliding glass walls and eight-foot fixed trapezoids, run $2,500 to $5,000 per opening installed. High-rise floor height drives cost here: the higher the unit, the higher the positive and negative wind pressure, and the heavier the glass package needs to be. We’ve done enough Gulf-front towers to know exactly what the engineering review will flag before we order the glass, which saves our customers weeks of back-and-forth.

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 Longboat Key
We’re authorized installers for CWS, ES Windows, and Mr-Glass, all of which produce impact-rated custom and geometric lines suitable for Longboat Key’s wind zone and salt environment. CWS builds heavy-duty architectural systems that handle the design pressures on high-rise Gulf-front units. ES Windows offers large custom fixed shapes and radius configurations that work well for oversized condo openings. Mr-Glass provides geometric impact options for tighter budget remodels on bay-side single-family homes. Because we install these brands regularly across Sarasota and Manatee counties, we can move faster on Longboat Key service calls and warranty work than a crew that has to special-order every bracket from a mainland supplier.
Common Custom & Geometric Windows Problems We See in Longboat Key Homes
- Salt pitting on geometric corners. Multi-angle corners and curved jambs on custom shapes trap salt spray and condensation that rectangular windows shed naturally. On Longboat Key, where salt-laden air blows from both the Gulf and Sarasota Bay simultaneously, standard aluminum frames on trapezoids and arches show visible pitting in five to seven years. The fix is marine-grade aluminum or stainless steel hardware from the first installation, not a patch job later.
- Seal failure on large arched units. Big radius windows in Gulf-front condos flex under offshore storm winds, and the seal stress concentrates at mullion-free joints. Once an arched window’s seal fails on a barrier island, condensation fogs the glass and the laminated interlayer starts losing its integrity. We replace these with properly reinforced arched impact units rather than trying to re-seal units whose structural geometry is the problem.
- Non-compliant openings flagged by milestone inspections. Florida’s post-Surfside structural requirements have Longboat Key condo boards pulling windows out of inspection reports and finding jalousie and single-pane fixed units that lost their wind-mitigation rating years ago to corrosion-seized hardware. Associations are now scheduling bulk replacement projects, and owners who wait end up in the next round. We work directly with boards and property managers on bulk-unit schedules.
- County-line paperwork mix-ups. A custom window replacement on the Manatee County side of Longboat Key carries different flood zone and wind-load documentation requirements than the same job two miles south in Sarasota County. We’ve seen out-of-area contractors quote a north-island job based on south-island permitting assumptions, then scramble when plan review bounces the packet. We pull permits for both counties from the same Longboat Key building department counter regularly, so nothing surprises us.
Pricing for Custom & Geometric Windows in Longboat Key, FL
Here are the ranges we quote most often on Longboat Key: a standard custom impact triangle or trapezoid runs $1,100 to $2,200 installed. A large-radius arched window with impact glazing typically lands between $1,800 and $3,500. Oversized fixed geometric glass walls run $2,500 to $5,000. Full-unit replacements in 1970s and 1980s Gulf-front condos, which usually mean tearing out jalousie walls and installing custom impact shapes throughout, generally fall between $12,000 and $25,000 depending on unit size and floor height. Whole-home packages for bay-side single-family homes run $8,000 to $25,000 and up.
What moves the price on this island: how high your unit sits, which county your parcel falls in, how many geometric shapes versus rectangles you have, and whether the existing frames are salvageable. Most aren’t, once two-side salt exposure has had a decade with them. Call (941) 267-0779 for a free in-home measure and a written, line-item quote. No change orders, no vague allowances. The number we give you is the number you plan around.
What Custom & Geometric Windows Costs in Longboat Key
We covered ranges above, but let’s anchor the big picture: impact windows in Longboat Key generally run $800 to $1,500 per window installed when you’re working with standard rectangular shapes. Custom and geometric impact windows start at $1,100 and climb to $5,000 for large or curved openings. Impact single-hung units run $900 to $1,800 installed. Whole-home packages start around $8,000 and top out past $25,000 for luxury Gulf-front properties with extensive custom glazing. A full condo unit replacement with custom shapes usually lands between $12,000 and $25,000.
Three things drive cost here more than anywhere nearby: wind zone requirements, floor height, and frame specification. Longboat Key sits in a high-velocity wind zone, so every permitted custom window carries a Florida Product Approval or Miami-Dade NOA rating matched to its exact design pressure, never higher than +/-100 PSF on any opening we install. Higher floors need heavier glass and beefier frames. And the salt environment means we won’t install standard aluminum on a geometric shape here, because it will pit at the corners before the warranty period is a distant memory. Marine-grade materials cost more up front and far less over twenty years.
The right way to compare quotes is to line up the frame alloy, the glass package, the hardware, and the permitting documentation side by side. We’ll walk you through that comparison at your kitchen table, not over a 30-second phone call. Free in-home measure. Written quote. Call (941) 267-0779.
Florida Pays You Back
Longboat Key homeowners have access to three incentive programs that can offset a meaningful portion of a custom impact window project. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, and impact windows are squarely within scope. Florida exempts impact-resistant windows and doors from sales tax, which saves you six to seven percent on the full installed cost depending on your county. The federal 25C energy credit adds up to $600 per year on qualifying energy-efficient units, 30 percent of product cost. Windstorm-premium credits often average around 25 percent off the windstorm portion of your premium once you pass a wind-mitigation inspection, which runs $75 to $150 in this market. We don’t guarantee any of these numbers. Programs change, carriers set their own credits, and your final eligibility depends on your specific property and policy. What we can do is hand you documentation that satisfies the requirements, because we’ve done it for hundreds of Longboat Key and Sarasota-area customers.
Impact Windows vs. Hurricane Shutters
Some Longboat Key condos still have hurricane shutters, often corroded accordion or roll-down systems that haven’t been deployed in years. Shutters only work if someone is home to close them, and on a barrier island that can be practical when the evacuation order comes. Impact windows are the permanent protection. No panels to hang, no tracks to lubricate, no rusted latching mechanisms to wrestle at 2 a.m. before a storm. The trade-off is upfront cost: custom impact windows cost more than repairing old shutters, but they also deliver year-round UV and sound reduction, they eliminate the annual maintenance cycle, and they’re what insurance carriers actually credit on your windstorm premium. We don’t install or service shutters. We replace them with impact-rated custom and geometric windows that pass the next milestone inspection without a repair list.
Recently on Longboat Key: A Jalousie Wall That Had Given Up
We recently replaced a 1970s jalousie-window wall in a Gulf-front condo on Gulf of Mexico Drive with custom PGT impact-rated fixed trapezoids and a large-radius arched transom. The original aluminum jambs had pitted so badly from two-side salt exposure that the sashes no longer seated, and the HOA’s milestone inspection had flagged the entire opening system as non-compliant. We swapped the corroded jambs for stainless steel fasteners and specified a laminated glass interlayer carrying a Miami-Dade NOA large-missile rating, matched to the unit’s actual design pressure on the sixth floor. The association approved the replacement because the documentation was complete on the first submittal. That’s what tight permitting work looks like, and it’s the only way we do business on Longboat Key.
We Also Serve Cities Near Longboat Key
Our crews serve Longboat Key and the wider coastal market around it. If you own property in Sarasota, Palmetto, Bradenton, or Osprey, we handle custom and geometric window work there too, with the same marine-grade specifications and permitting rigor. Salt air doesn’t stop at the Longboat Key bridge, and neither do our service trucks.
Serving Longboat Key, FL - Our Local Coverage Area
We’re based in the Longboat Key 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 - Custom & Geometric Windows in Longboat Key
Yes. Every replacement window on Longboat Key, regardless of shape or size, must carry a Florida Product Approval or Miami-Dade NOA rating matched to the design pressure of that specific opening. A small fixed triangle doesn’t get a pass because it’s small. The wind load on a barrier island doesn’t care about the shape of the glass, and the Longboat Key building department won’t issue a permit without the right documentation. We pull the NOA paperwork for every geometric opening we install here, from a two-foot triangular accent window to a ten-foot arched transom. Call (941) 267-0779 and we’ll explain exactly what your building’s openings need.
In most Longboat Key buildings, no. Frames that have spent fifteen or more years absorbing salt spray from both the Gulf and Sarasota Bay have corrosion you can’t see from the interior side, at the mullion-free joints and fastening points where failures actually happen. Reusing a compromised frame with new impact glass means the frame becomes the weak point, and your HOA’s next milestone inspection will flag it. We’ll evaluate your existing frames honestly. If the frame is sound and the engineering supports glass-only replacement, we’ll tell you. If it’s pitted or flexed, we’ll show you, and recommend full replacement. The estimate is free either way.
Because the Town of Longboat Key straddles the Manatee-Sarasota county line, and county flood zone elevation and wind-load documentation standards differ even though the island has one building department. A condo on the Manatee County side of Longboat Key can need different backing paperwork than a nearly identical building two miles south in Sarasota County. Out-of-area window companies miss this routinely and end up with bounced permit packets and angry boards. We pull permits for both counties from the same Longboat Key counter on a regular basis, so we know which packet your parcel needs before we submit it. Call (941) 267-0779 if you want us to review your building’s situation.
A high-performance low-E coating with a low solar heat gain coefficient, usually in the 0.25 to 0.30 range for west-facing Gulf glass, works best for large geometric windows on Longboat Key. The Gulf sun is relentless, and a big trapezoid or arched window facing it becomes a heat load on your air conditioning and a fade problem for floors and furniture. We spec laminated impact glass with a spectrally selective low-E coating that blocks most solar heat while keeping visible light transmission high, so your view of the Gulf doesn’t turn into a tinted gray panel. The exact coating depends on your glass-to-frame ratio and your floor height. We’ll walk you through the options when we measure.
Yes, in most cases it will lower the windstorm portion of your premium, and windstorm is the expensive part on a barrier island. Impact-rated windows and doors are the single most effective line item on a wind-mitigation inspection, and Longboat Key carriers typically credit average savings around 25 percent on the windstorm portion once the inspection verifies them. You’ll need a wind-mitigation inspection after installation, which runs $75 to $150 locally. We’ll provide the Florida Product Approval or Miami-Dade NOA documentation for every opening we install, formatted the way carriers and inspectors actually want to see it. Call (941) 267-0779 to get your project started with a free measure and written estimate.
Call Winslow Windows & Doors for Custom & Geometric Windows in Longboat Key
If you own property on Longboat Key and you’re looking at a corroded arched window, a failed trapezoid on the Gulf side, or a condo board letter about non-compliant openings, call (941) 267-0779. We’ll send a background-checked, uniformed technician to measure your openings, review your permit and HOA requirements, and hand you a written line-item quote. Ed Winslow’s name is on the business, and the 36500-Day Done Right Promise is on every job: if it’s not done right, we make it right. Free estimates, free second opinions on written estimates, $40 off any repair over $200, and a permanent 10 percent discount for seniors and veterans. The one down the road. Call today.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Longboat Key since 2011.
Six Reasons Homeowners Choose Winslow Windows & Doors
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.










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