Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Impact Windows Across Siesta Key
Impact windows in Siesta Key run $1,200 to $2,400 per window for a standard retrofit on a 1950s to 1970s CBS cottage, with whole-home packages typically landing between $12,000 and $22,000 depending on opening count and frame condition. A salt-corroded jalousie removal and masonry repair can add $300 to $800 per opening before the new unit even goes in. That’s the honest answer. Ed Winslow and our crew have been doing this work since 2011, and we know exactly what a Siesta Key wall looks like once you open it up, because we’ve opened hundreds of them. Call us at (941) 267-0779 for a free in-home measure and a written quote that tells you what the job will actually cost before we touch a single screw.
We’re the ones down the road, and we answer the phone when it rings.
Why Winslow Windows & Doors Is Siesta Key’s Preferred Impact Windows Company
Siesta Key homeowners call us because we’ve earned it the slow way: job by job, inspection by inspection, since Ed Winslow founded this company in 2011. We’re locally owned by Ed, not a franchise, and our name is on the door and on every job we do. That means when something goes sideways, you’re not calling a call center in another state. You’re calling Ed. And a live person answers, 24 hours a day, 7 days a week.
We understand the island better than any out-of-town shop ever could. We know that a home on Sandy Hook or along Midnight Pass Road faces a different corrosion profile than a condo on the bay side near the Stickney Point bridge. We know that original jalousie windows on Avenida Messina and Treasure Boat Way are often so salt-welded to the rough opening that a “simple window swap” is neither simple nor a swap. We know which permit triggers the Sarasota County inspector will flag, because we’ve sat through those inspections. Our technicians arrive in uniform, background-checked, and they know the island because they work on the island. When you call us for Impact Windows service, you get a crew that treats your home like it’s on their own street.
Every job comes with Ed’s 36500-Day Done Right Promise: if it’s not done right, we make it right. That’s a century-long standard of accountability, and no national chain will put that in writing for a Siesta Key home.
Our Impact Windows Services in Siesta Key
We focus on three things on Siesta Key: impact windows, impact doors, and full installation and retrofit work. That’s the bread and butter of protecting a Gulf-front home, and we don’t drift into work we don’t do every week on this island.
Impact Window Installation
Most Siesta Key homes fall into two camps: original 1950s to 1970s CBS construction with single-pane jalousie or awning units, or newer luxury builds and mid-rise condos with larger, custom openings. Both need Florida Product Approval impact-rated windows, but the install path is completely different. On older cottages, we’re often cutting corroded frames free from deteriorated concrete sills, repairing mortar beds, and then anchoring the new unit to code. On newer builds, we’re typically retrofitting larger custom openings with reinforced vinyl or marine-grade aluminum frames that match the architecture. Either way, our Impact Windows team sizes every opening in person and writes the quote off actual measurements, never off a satellite image.

Impact Door Replacement
Siesta Key’s FEMA flood-zone classification pushes many homes onto elevated slabs or pilings, which creates longer door threshold transitions. Those transitions are where wind-driven rain gets inside. We replace impact-rated entry doors and Sliding Glass & Patio Doors in Siesta Key with careful attention to flashing and sealing at grade, because a door that passes the impact test but leaks at the threshold is a door that rots your subfloor within two seasons of Gulf salt air. We install impact-rated doors from Therma-Tru, PGT, and CGI, with stainless-steel hardware as standard for island homes, not an upcharge.

Retrofit and Replacement
Retrofit work on Siesta Key is where local knowledge stops being a nice-to-have and becomes the whole job. A retrofit impact unit on a 1960s CBS cottage often means pulling an original jalousie frame that has corroded into the concrete, repairing the rough opening, addressing any water damage behind the old frame, and then setting the new unit so the Sarasota County inspector passes it on the first visit. We do this work in-house. We don’t sub it out to a crew that’s never seen a salt-seized jalousie. If the job expands once we open the wall, you hear about it before we do the extra work, with a written change order and a price you approve first.

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 Siesta Key
Siesta Key’s salt air is harder on window hardware than almost anywhere else in Sarasota County, and not every brand holds up. We’re authorized installers for PGT and CGI, both of which build marine-grade aluminum and reinforced vinyl product lines designed for direct Gulf exposure. For homes where architecture calls for a specific look, we also work with CWS and ES Windows, both of which offer Florida Product Approval configurations that handle the island’s wind zone cleanly. We keep local parts stock for common PGT and CGI hardware failures, which means when a roller or a locking mechanism goes bad on a Siesta Key impact slider, we can usually fix it in one trip instead of waiting on a distributor. Ed’s shop has been an authorized installer for eight premium brands since day one, and we’ll tell you honestly which one fits your home, because we don’t get paid to push one over another.
Common Impact Windows Problems We See in Siesta Key Homes
- Salt-corroded jalousie frames that seize to concrete sills. We see this on nearly every original 1950s or 60s cottage on the island. The aluminum corrodes so thoroughly it welds itself to the rough opening, and a “simple window swap” turns into masonry demolition before the new unit can be anchored. Contractors who don’t work on Siesta Key miss this until the job is already underway, and then the change order shows up.
- Failed waterproofing at elevated door thresholds. Homes on pilings or elevated slabs have long threshold transitions, and when the flashing or sealant fails, wind-driven rain tracks inside every storm. The subfloor rots long before any glass breaks. We see this in beach cottages from St. Armands Circle south to the Crescent Beach area.
- Permit-triggered code upgrades behind the wall. Once you open a wall on a 1960s Siesta Key home, the inspector can flag outdated wiring, undersized framing, or missing waterproofing that must be brought to current Florida Building Code before the permit closes. This is the single biggest reason an impact window quote moves, and we handle it by writing realistic allowances into the contract up front, then pricing any actual surprise in writing before we do the work.
- Non-marine-grade hardware failing within one season. Standard aluminum frames and off-the-shelf hardware corrode fast in Siesta Key’s salt-laden air. We specify stainless-steel hardware and marine-grade extrusions or reinforced vinyl for every island job, because we’ve replaced too many one-year-old locks that looked like they’d been in the ground for a decade.
Pricing for Impact Windows in Siesta Key, FL
Here’s what actually moves the price on Siesta Key: opening count, frame material, and what’s hiding behind the old window. A standard impact single-hung in a mid-range reinforced vinyl runs $1,200 to $1,800 installed in Siesta Key, assuming a clean opening. Large or custom openings, which are common in the newer Gulf-front builds south of the village, run $2,500 to $4,500 per window. Whole-home packages on a 1960s cottage typically land between $12,000 and $22,000, depending on how many openings need masonry repair and what frame material the home calls for. If you’re replacing original jalousies with impact casements, plan on $300 to $800 per opening for salt corrosion removal, mortar repair, and flashing before the new unit is set. We give free in-home estimates, and the quote we hand you is the number on the invoice. No change orders unless you sign off on them first. Call (941) 267-0779 to schedule yours.
What Impact Windows Costs in Siesta Key
The honest range for impact windows in Siesta Key is $800 to $1,500 per window installed on the low end for standard single-hung units in an uncomplicated retrofit, up through $2,500 to $5,000 for large or custom openings in high-wind zones along the Gulf side. Whole-home packages run $8,000 to $25,000 or more depending on the home’s age, frame condition, and whether you’re doing the entire opening or leaving the existing frame in place. Frame material is the biggest swing factor: marine-grade aluminum extrusions and fiberglass cost more up front but handle Siesta Key’s salt spray for decades, while reinforced vinyl is the value play and holds up well when the hardware is upgraded to stainless steel. Wind zone matters too; beachfront homes face design pressures that push product selection toward Florida Product Approval configurations rated for HVHZ, never above +/-100 PSF on a label. Floor height changes the glazing requirements as well, which is why a third-floor condo on the water specs differently than a ground-level cottage on the bay side. We measure every opening, confirm the wind zone, and give you a written, line-item quote so you know exactly what drives the number. Free in-home measure included, no obligation. Call (941) 267-0779.
Florida Pays You Back
The incentives for impact windows in Siesta Key stack in your favor, and we walk every client through them at the quote table. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades, including impact-rated windows and doors. Florida also exempts impact-resistant windows and doors from state sales tax, which takes a meaningful chunk off a whole-home package right away. At the federal level, the 25C energy credit returns 30% of the product cost, up to $600 per year, on qualifying energy-efficient units. And after a wind-mitigation inspection, many Siesta Key homeowners see their windstorm premium drop by around 25% on the windstorm portion; the inspection itself typically runs $75 to $150. We don’t control program funding or carrier underwriting, so we won’t promise you a number that isn’t in writing from your insurer. But we’ll point you to the paperwork and tell you exactly which product specs satisfy the credit and grant requirements. The comparison that matters on Siesta Key is impact windows versus hurricane shutters: permanent protection that’s already in place when the storm hits, versus panels you have to find, carry, and hang in the wind while the rain starts coming sideways. We don’t install shutters, and we’ll be straight with you about why windows win on this island.
We Also Serve Cities Near Siesta Key
Our crews work the whole coastal corridor, so if you’re just off the island in Siesta Key itself or over the bridges in Sarasota, Bradenton, Venice, or North Port, you’re still in our service area. Dispatch and scheduling runs from our South Florida office, and we keep crews positioned to reach Siesta Key fast. Call (941) 267-0779 and a live person will tell you when we can be there.
Serving Siesta Key, FL - Our Local Coverage Area
We’re based in the Siesta 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 - Impact Windows in Siesta Key
A Siesta Key impact window quote changes after the wall is opened because most original 1950s and 60s homes on the island hide salt-corroded frames, deteriorated concrete sills, old water damage, and sometimes code violations like outdated wiring or undersized framing that the Sarasota County inspector requires us to fix before the permit closes. We minimize surprises by doing a full inspection before quoting and by building realistic allowances into the contract. If the scope still grows, we show you a written change order with a firm price before we do the extra work. Call (941) 267-0779 for an exact quote on your home; estimates are free.
No, you cannot replace just the glass in a jalousie window with impact-rated glazing and get a compliant, code-approved result. Jalousie frames are not designed to handle the loads an impact-rated unit must meet, and on Siesta Key the salt-corroded aluminum frames are typically so degraded they can’t anchor a new unit anyway. The right fix is full removal of the jalousie assembly, repair of the rough opening and sill, and installation of a Florida Product Approval impact window that meets Sarasota County code and your home’s wind zone. We do that work in Siesta Key every week. Call (941) 267-0779 for a free in-home estimate.
Yes, Siesta Key impact windows with Florida Product Approval, including Miami-Dade NOA where your wind zone requires it, typically qualify for a wind mitigation insurance discount. Most Siesta Key homeowners see the windstorm portion of their premium drop by around 25% after a wind-mitigation inspection confirms the products are installed to code. The inspection runs $75 to $150, and we give you the product documentation your inspector will ask for. Your carrier sets the final discount, so we won’t quote a number that isn’t in writing from them. Call (941) 267-0779 and we’ll walk you through the paperwork for your Siesta Key home.
Brands that build marine-grade aluminum extrusions and fiberglass frames with stainless-steel hardware hold up best to direct Gulf salt spray on Siesta Key; we see the strongest long-term performance from PGT and CGI product lines, with CWS and ES Windows as solid options for specific architectural needs. The material matters more than the brand name alone: standard aluminum frames with non-marine hardware fail fast on the island, even from a premium manufacturer. We specify stainless hardware and marine-grade components as standard for Siesta Key work because the salt air doesn’t give second chances. Call (941) 267-0779 for a brand recommendation based on your specific home.
We strip the failed flashing and sealant, inspect the subfloor and threshold structure for rot, replace any damaged framing, and then re-flash and seal the new impact door threshold to current Florida Building Code before the Sarasota County inspector arrives. On elevated Siesta Key homes, the long threshold transition at grade is the most common leak point, so we treat it as the job itself, not an afterthought. If the rot extends into the subfloor, we show you the damage and price the repair in writing before we proceed. Call (941) 267-0779 for a free inspection of your Siesta Key impact door thresholds.
The Siesta Key Specific: What Opening a Wall Actually Turns Up
This is the part generic impact window pages never tell you. On Siesta Key, opening up a wall on a 1950s or 60s cottage rarely reveals a clean rough opening waiting for a new unit. It reveals what five decades of Gulf salt spray and wind-driven rain have been doing behind the exterior. We’ve pulled original jalousies out of CBS cottages and found the aluminum frames so corroded they had essentially welded to the concrete sills, the mortar beds behind them crumbling, and old wiring running through the same cavity that’s now required to be brought to code before the inspector signs off. On Avenida Messina, our crew pulled a bank of original jalousies from a 1962 CBS cottage and found exactly that: the aluminum frames so corroded they’d essentially welded to the sills. We cut the old frames free, repaired the deteriorated mortar beds, and set PGT WinGuard impact casements with stainless-steel hardware, then flashed the openings to pass Sarasota County inspection on the first visit. That’s how we handle every Siesta Key job: inspection first, allowances written into the contract, and any surprise priced and approved in writing before we touch it. That’s the difference between a crew that works on Siesta Key and a crew that reads about it.
Outdated wiring, undersized framing, and failed waterproofing all trigger permit-mandated code upgrades once walls are open. We handle that not by pretending it won’t happen, but by telling you up front what we expect to find, writing a real allowance into the contract for it, and then pricing any actual condition in writing when we see it. No “we’ll figure it out later” contracts. No vague hand waves. The number you sign is the number you get, and if the job grows, it grows with your signature, not without it. That’s Ed’s word, and it’s backed by the 36500-Day Done Right Promise: if it’s not done right, we make it right.
Call Winslow Windows & Doors for Impact Windows in Siesta Key
If you live on Siesta Key and you’re looking at impact windows, doors, or a full retrofit, call us first. We’ll send a technician to your home, measure every opening, inspect the existing frames and sills, and hand you a written quote that covers the real job: salt-corroded openings, permit triggers, flashing, hardware, and all. No trip charge inside our home county. Free second opinions on any written estimate you’ve already got. A permanent 10% discount for seniors and veterans, and $40 off any repair over $200. Call (941) 267-0779 today and talk to a real person who knows Siesta Key. Ed’s name is on the door, and on every job we do.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Siesta 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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