Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Replacement Across Siesta Key
Window replacement in Siesta Key is rarely a simple swap. It’s a code-driven, salt-air-tested job on a barrier island where every opening has to answer to Sarasota County’s windborne debris rules and the relentless corrosion that comes off the Gulf on one side and Little Sarasota Bay on the other. If you live in a 1950s beach cottage near Siesta Key Village or a newer build along Midnight Pass Road, you’re dealing with impact-rated requirements, aging aluminum frames, and a choice about who you trust to open your walls. TruePane Windows & Doors handles the island’s particular brand of window work every week, and we do it with the same standard on every job: if the pane is not true, the job is not done. Call (941) 214-2069 for a free in-home estimate.
Why TruePane Windows & Doors Is Siesta Key’s Preferred Window Replacement Company
We’re not a franchise playbook and we’re not the cheapest bid on the island. TruePane was founded by second-generation glazier Dale Kessler on a principle that out-of-true installs and voided warranties were problems worth fixing permanently. That principle carries onto every Siesta Key job, from a single insert replacement in a condo near Point of Rocks to a whole-house frame-out on a cottage off Higel Avenue. Our crews are background-checked and uniformed, and they measure every opening twice before anything gets ordered. A live person answers the phone 24 hours a day, seven days a week, and the estimate is written on paper, side by side, so you see exactly what you’re buying. Siesta Key homeowners keep calling us back because we quote honestly, show up when we say, and put every promise in writing, including both manufacturer warranty layers registered before the truck leaves your driveway.
We’re also an authorized installer for more than a dozen manufacturer lines, including PGT, CGI, and ES Windows, which matters here more than most places. The island’s wind zone and salt exposure narrow the list of windows that will actually survive and pass inspection. We know which product approvals Sarasota County inspectors accept and which frames hold up when onshore breezes carry salt spray over the dune line.
Our Window Replacement Services in Siesta Key
Full Frame Replacement
Full frame replacement is the reality for a large share of Siesta Key’s original housing stock. When we pull a 1950s jalousie bank or a corroded single-track aluminum slider out of an opening on Midnight Pass Road, we’re usually looking at undersized framing, failed flashing, and wood that’s given up after decades of salt air from both fronts. This is not a cosmetic swap; it’s a structural correction that lets a modern impact-rated unit sit true and seal tight. We reframe, flash to Florida Building Code HVHZ standards, and set the new window so it drains properly through new weep holes. Most full frame replacements on the island are installed in as fast as a single day once your units arrive.

Insert Window Replacement
Insert replacement works when the existing frame is square, sound, and sized for a modern unit. Some newer Siesta Key condos and post-2004 rebuilds are good candidates for this approach. The new window sits inside the existing opening, preserving interior trim and exterior stucco or siding. We’ll tell you honestly if an insert is appropriate or if the framing beneath is too far gone to trust. On a barrier island, guessing wrong means a window that racks in the first storm season and leaks salt air straight into the wall cavity.

Vinyl Replacement Windows
Vinyl replacement windows are a practical choice for many island homes, particularly where homeowners want impact-rated performance without the maintenance burden of aluminum in a salt environment. Modern vinyl doesn’t pit the way older aluminum extrusions do, and the right vinyl impact window carries the Florida Product Approval needed for Siesta Key’s wind zone. We carry vinyl lines that are approved for HVHZ compliance and will quote them side by side with aluminum or composite options so you can compare cost, warranty coverage, and design pressure on paper.

Energy-Efficient Upgrade
Siesta Key’s cooling season runs long and the sun off the Gulf is not gentle on east-facing glass. Upgrading to Low-E insulated impact glass changes how a house holds temperature, and it’s not marginal. We replace original single-pane jalousie banks with insulated impact units that cut solar gain and stop air leakage through corroded tracks. The benefit lands on your FPL bill month after month, and it makes the room on the west side of the house usable again in August.

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
TruePane is an authorized installer for more than a dozen manufacturer lines, and we quote them honestly instead of steering every job toward one brand. In Siesta Key, PGT and CGI dominate because their product approvals are well documented for the island’s wind zone, but we also work with ES Windows for taller custom openings and architectural applications. We stock common replacement parts and hardware for the brands we install, which means a failed balance or worn roller on an existing window doesn’t have to sit for weeks. If the manufacturer makes it, we can likely source it and have it installed on the island quickly.
Common Window Replacement Problems We See in Siesta Key Homes
- Jalousie windows that fail Sarasota County inspection. Original 1950s and 1960s jalousie banks are common along Midnight Pass Road and near Siesta Key Village. County inspectors will not pass a permit on these properties with shutter overlays alone. The openings require full frame-out replacement with impact-rated glazing.
- Salt corrosion on both fronts. The Gulf sits west and Little Sarasota Bay sits east. Hardware, weep holes, and aluminum extrusions corrode in as little as ten to fifteen years, and the failure often stays hidden inside the wall until a storm tests the opening. We see delaminated seals and pitted jambs on both sides of the island.
- Undersized original framing. Many 1950s to 1970s beach cottages were framed for lightweight jalousie or single-track sliders. Modern impact-rated glass is heavier and carries higher design pressures. The original framing frequently cannot handle the load without reinforcement, which is exactly the kind of condition a proper pre-inspection uncovers before the contract is signed.
- Failed waterproofing behind original windows. When we open a wall on an older Siesta Key home, we often find failed flashing or no flashing at all. Decades of wind-driven rain and salt spray worked into the rough opening and rotted the wood behind the trim. This is not visible until the window comes out, which is why our contracts include allowances for the code upgrades an opening triggers.
What Window Replacement Costs in Siesta Key
A typical impact-rated window replacement in Siesta Key runs roughly $800 to $1,500 per window installed, with impact single-hung units landing between $900 and $1,800. Large or custom openings, including tall picture windows or corner configurations, run $2,500 to $5,000 or more. Whole-home packages on the island generally land between $8,000 and $25,000 plus, depending on opening count, floor height, and how much reframing the original structure requires. What moves the price here more than anything is what the walls reveal. A 1960s cottage with jalousie banks needs complete frame-out work, and the code upgrades that follow will change the quote. We write allowances into the contract for exactly this, and any surprise gets priced and approved in writing before we touch it. The estimate is free. Call (941) 214-2069 and we’ll measure every opening and put the numbers on paper.
Florida Pays You Back
Siesta Key homeowners have real incentives on the table. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind-mitigation upgrades to primary residences, and impact-rated windows and doors may qualify. Florida also exempts impact-resistant windows and doors from sales tax, which is a meaningful saving on a whole-house job. The federal 25C energy credit can return 30% of the product cost, up to $600 per year, on qualifying energy-efficient units. After installation, a wind-mitigation inspection, typically $75 to $150, can unlock windstorm premium credits that often average around 25% on the windstorm portion of your policy. We will not guess at your rebate or credit figure. Programs and carriers set the final numbers. We will tell you what may qualify and point you to the right documentation.
Impact Windows vs. Hurricane Shutters on Siesta Key
It’s a reasonable question, and on a barrier island it has a sharper answer than it does inland. Impact-rated windows protect the opening all the time, not just when you drag panels out of the garage and bolt them to the wall before a storm. Shutters only work when they’re installed, and they do nothing for a storm that forms while you’re off the island or asleep. Impact windows with Florida Product Approval and the right design pressure rating for your opening also simplify the inspection and insurance paperwork. We never sell or install shutters, but if you’re weighing the two, the permanent option tends to win once homeowners look at the full cycle of prep, storage, and repeated labor that shutters demand every season. On Siesta Key, where a missed shutter deployment can mean a breached opening on the windward side of the house, the math tilts further toward impact glazing.
Opening Up an Older Siesta Key Home: What the Walls Actually Show
The single biggest reason a window replacement quote moves on this island is what we find once the old unit comes out. Dale Kessler’s rule is simple: inspection first, allowances written into the contract, and any surprise priced and approved in writing before we touch it. On Midnight Pass Road, our crew replaced a bank of original 1950s jalousie windows in a beach cottage with PGT impact-rated casements. The existing jambs had corroded aluminum tracks and delaminated seals from years of salt spray off Little Sarasota Bay, and the wall cavities revealed failed waterproofing around undersized framing. All of it triggered the code upgrades our contract allowance had already anticipated. We reframed the openings, flashed them to Florida Building Code HVHZ standards, and the homeowner now has a wind mitigation credit on their policy. That’s the work, done in the order it should be done: find it first, price it honestly, build it right.
Pricing for Window Replacement in Siesta Key, FL
You’ll see a lot of numbers thrown around for window work in Florida. Here’s what holds on Siesta Key. An insert replacement into a sound frame runs on the lower end, often $500 to $900 per opening for a standard vinyl unit. Full frame replacement on the island’s older cottages runs higher because of the reframing and flashing work involved, usually $1,200 to $2,500 per opening or more when structural corrections are required. Impact glazing carries a premium over standard insulated glass, but on this island it is not an option to skip. The honest way to understand your number is to have us measure every opening, inspect the framing condition from the outside and inside, and write a line-item quote. That visit is free, the written quote is free, and no number changes once we start unless you approve it in writing first. Call (941) 214-2069 to schedule yours.
We Also Serve Cities Near Siesta Key
While this page is about Window Replacement in Siesta Key, our crews also work the surrounding Suncoast communities. We regularly handle Window Replacement jobs in Sarasota, Bradenton, Venice, and North Port. If you’re just off the island and still in Sarasota County, the same code rules and salt-air considerations largely apply, and we’ll bring the same inspection-first approach to your home.
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 - Window Replacement in Siesta Key
Yes, every permitted window replacement on Siesta Key requires impact-rated glazing with Florida Product Approval. The entire barrier island lies within Sarasota County’s windborne debris zone, so shutters alone will not satisfy code for a replacement opening. Impact glass is the standard, not an upgrade option. Call (941) 214-2069 and we’ll confirm the specific wind zone and design pressure requirements for your address before quoting.
Florida Building Code does not recognize jalousie windows as impact-compliant openings regardless of shutter overlays. Sarasota County inspectors will not pass a permit on these properties without full frame-out replacement with impact-rated units. This is one of the most common triggers for whole-house window work on Siesta Key’s original cottage stock. We quote full frame replacement for these openings, never inserts, because the frame must be rebuilt to carry a modern unit.
Siesta Key gets salt exposure from two directions with no inland buffer. Gulf breezes push salt spray from the west while the bay carries it from the east. Aluminum extrusions, weep holes, and hardware corrode in ten to fifteen years on the island where the same components might last twenty or more inland. We see pitted jambs, seized rollers, and delaminated seals on both fronts, and the damage often stays hidden until a window is pulled or a storm forces the issue.
On older island cottages, opening a wall commonly reveals undersized framing, failed or missing flashing, and sometimes outdated wiring in the cavity. The reframing and waterproofing corrections are code work triggered by the permit, and we write an allowance into the contract for them before we start. Any additional work beyond the allowance is priced and approved in writing before we proceed. We run the inspection first so the number you sign reflects the actual condition of the wall, not a guess.
Yes. Single-pane jalousie and old aluminum sliders lose conditioned air through gaps and corroded tracks and let direct solar gain heat the interior. Low-E insulated impact glass cuts that solar gain and seals the opening, which reduces the load on your AC during the island’s long cooling season. The exact savings depend on your home’s orientation, shade, and existing insulation, but homeowners typically notice the difference in rooms that face the afternoon sun. Call (941) 214-2069 and we’ll walk your house to point out which openings are costing you the most.
Window Maintenance & Care on a Barrier Island
Most Siesta Key homeowners never think about window maintenance until a track binds or a seal fogs. On this island, the environment does the damage quietly. Salt deposits build up in weep holes and block drainage, which is precisely how a frame starts to fail from the inside. We recommend a basic inspection and cleaning of tracks, weep holes, and weatherstripping at least once a year, and more often if your house sits within direct view of the Gulf on the west side or the bay on the east. Our seasonal tune-up covers the full check: tracks, rollers, balances, seals, and hardware. For $89, a technician walks every opening and tells you honestly what is wearing and what can wait. It’s a small number against the cost of a full replacement that could have been caught early.
Get Your Free Siesta Key Window Replacement Estimate
If you live on Siesta Key and you’re looking at windows that fog, bind, whistle, or simply predate impact code, the next step is an honest inspection. We’ll measure every opening twice, review the framing condition, and quote manufacturer lines side by side on paper. Both warranty layers get registered in writing before the truck leaves your driveway, and the 90-Day Done Right Promise stands behind the work. A live person answers at (941) 214-2069, 24 hours a day. Call to schedule your free estimate and find out what your home actually needs, not what a sales pitch says it needs.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Siesta Key and the surrounding Suncoast communities.
Six Reasons Homeowners Choose TruePane 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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