Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Custom Windows & Doors Across Treasure Island
Custom window and door work on Treasure Island is not the same job as it is in St. Petersburg or Largo. The island’s position between the Gulf of Mexico and Boca Ciega Bay means every opening in your home faces salt air from two directions and wind-load requirements that mainland contractors sometimes overlook. TruePane Windows & Doors has been doing custom window and door replacements here long enough to know what Pinellas County inspectors look for on barrier-island structures, and what happens when a jalousie window from 1962 finally fails a Citizens Insurance wind-mitigation re-inspection. Call (954) 280-4413 and we’ll walk you through what your home actually needs, in plain terms, with a written quote on paper.
Why TruePane Windows & Doors Is Treasure Island’s Preferred Custom Windows & Doors Company
Dale Kessler founded TruePane Windows & Doors in 2008, but the craft behind the company goes back many years. The rule on the whiteboard has not changed: if the pane is not true, the job is not done. That standard applies to every custom window and door we set on Treasure Island, from a small architectural grille on Sunset Beach to a full curtain wall on a Gulf Boulevard condo tower.
Treasure Island homeowners tend to call us after something has already gone wrong. A fogged seal on a bayfront slider. A door that binds every July. A wind-mitigation inspection that came back with a non-compliance notice. We measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers in writing before the truck leaves the driveway. That is The Keystone Standard, and it is not optional.
We hire local, train apprentices into journeymen, and our technicians are background-checked and uniformed. When you call (954) 280-4413, a live person answers. Not a voicemail tree, not a callback form. That matters when you’re staring at a broken window and a storm forecast.
Our Custom Windows & Doors Services in Treasure Island
Our Custom Windows & Doors division handles the work that standard window swaps don’t cover. On Treasure Island, that often means replacing original louvered units with openings that are no longer square, or matching a mid-century facade while meeting current wind-load code. Here’s what we do most often on the island.
Custom Shape Windows
Treasure Island’s 1950s and 1960s CBS homes frequently include radius-top windows, trapezoid openings, and corner glass that big-box replacement programs will not touch. We build those shapes to spec with frames that carry a Florida Product Approval number. A custom arch window on a Bayside home needs the same wind-load rating as a rectangle on a Gulf-front, and we treat them the same way at the rough opening.

Oversized Glass Panels
If your property on Gulf Boulevard or Boca Ciega Bay uses large fixed panes for the view, you need glass that will not flex under hurricane-force wind pressure. We supply and set oversized impact-rated panels with the structural framing and flashing that Pinellas County expects on a barrier island. We’ve replaced single-pane bay-front glass that had pitted from years of salt spray, and the difference in clarity is immediate.

Architectural Grilles & SDLs
Many Treasure Island homeowners want the divided-light look of the original 1960s windows but need the performance of modern impact glass. Simulated divided lites, or SDLs, give you both: authentic sightlines with a glass unit that passes wind-borne debris testing. We match grille profiles to existing trim so the new windows look like they were always there. This is the detail work that separates a replacement from a restoration.

Commercial Storefront Glazing
Treasure Island’s retail and hospitality storefronts on Gulf Boulevard catch direct salt air every day. Aluminum framing that is not marine-grade pits within a few years, and then the glass stops seating properly. We replace storefront glazing with corrosion-resistant framing and impact-rated glass, often working early mornings to keep businesses open. Curtain wall systems for mid-rise condos are a separate order of engineering; see below for how we handle those projects.

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 Treasure Island
We are an authorized installer for more than a dozen manufacturer lines, and on Treasure Island we find ourselves quoting CGI, ES Windows, and CWS most often because their marine-grade and impact-rated products hold up to the island’s dual-salt exposure. We also service Andersen, Pella, Marvin, Milgard, Jeld-Wen, PGT, and ECO Window Systems. When we quote, we put manufacturer lines side by side on paper so you see the real differences in warranty duration, frame material, and impact rating before you spend a dollar. We keep common hardware and replacement parts stocked for the brands most frequently installed on Treasure Island, which shortens lead times when a hinge or roller fails.
Common Custom Windows & Doors Problems We See in Treasure Island Homes
- Pitted aluminum frames from double-sided salt air. Homes here get salt spray from both the Gulf and Boca Ciega Bay, and non-marine-grade aluminum starts to corrode within a few years. The frame pits, the seal breaks, and the sash jams. Mainland homes in Pinellas County rarely see this failure mode at the same rate.
- Original jalousie windows flagged by Citizens Insurance wind-mitigation re-inspection. The 1960s jalousie design cannot be retrofitted to meet current wind-borne debris protection requirements. When the inspector flags them, the only compliance path is full-frame replacement, not glass-only work.
- Water intrusion at rough openings from improper flashing. Barrier-island homes have no margin for water intrusion. A flashing job that would pass 2 miles inland fails here because wind-driven rain and storm surge find every unsealed seam. Hidden rot behind siding is the most expensive repair we get called in to fix after another contractor’s work.
- Binding sliders and French doors on older concrete block homes. Mid-century CBS construction settles over decades, and original door frames twist. A slab door that bound in July when the home was built will still bind in July if the new door is not set true to the existing rough opening, not just to a level line. We shim, flash, and set to the actual opening.
Pricing for Custom Windows & Doors in Treasure Island, FL
A typical custom shape window replacement in Treasure Island runs $1,200 to $3,800 per opening depending on size, impact rating, and frame material. Oversized glass panels for Gulf-front or bay-facing walls start around $4,500 and may exceed $15,000 for large fixed panes with structural reinforcement. Architectural grilles and SDLs add $250 to $750 per window depending on pattern complexity. Full-frame jalousie-to-impact conversions on a 1960s CBS home, including permit, Florida Product Approval documentation, and flashing, typically run $2,500 to $5,500 per opening. A commercial storefront glazing replacement on Gulf Boulevard generally starts around $3,000 for a single bay and scales with lineal footage. These are Treasure Island market ranges. Call (954) 280-4413 for a free estimate with a written, line-item quote. No surprise line items on the bill, no second appointment left hanging.
We Also Serve Cities Near Treasure Island
TruePane Windows & Doors serves Treasure Island and the surrounding Pinellas County communities. If you’re in Acacia Villas, Alafaya, Altamonte Springs, or Altoona, our crews cover those areas with the same Keystone Standard and the same live-person phone answer. Call (954) 280-4413 and we’ll schedule a free estimate wherever you are in the area.
Serving Treasure Island, FL - Our Local Coverage Area
We’re based in the Treasure Island 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 Windows & Doors in Treasure Island
Every window and door opening on Treasure Island must meet wind-borne debris region requirements under the current Florida Building Code, typically a design pressure rating of at least ±50 psf for most residential openings, with higher ratings required for taller structures and openings closer to the water. Verification comes through a Florida Product Approval number printed on the product documentation, plus an installation that matches the manufacturer’s approved rough-opening details. Call (954) 280-4413 and we’ll show you exactly what rating your openings need before you sign anything.
Jalousie windows, the louvered glass units common in 1950s through 1970s Treasure Island construction, have no structural capacity to resist wind-borne debris and cannot be retrofitted to gain that capacity. The only fix that satisfies a Citizens Insurance wind-mitigation re-inspection is full-frame replacement with impact-rated units that carry a valid Florida Product Approval number. We handle that conversion from permit to final inspection.
The island receives salt spray from both sides simultaneously, which means aluminum frames, rollers, hinges, and locking hardware corrode at roughly double the rate seen in mainland Pinellas County cities like Largo. Non-marine-grade hardware pits, then the seals fail and sashes jam. We specify marine-grade frames and stainless hardware on every Treasure Island installation for that reason.
Yes, in most cases. Documented impact-rated window and door replacements typically qualify for wind-mitigation credits that reduce the windstorm portion of your premium. The key word is documented: the units must carry Florida Product Approval numbers, and the installation must be verified. We register both warranty layers and provide the compliance paperwork you need for your insurer. Call (954) 280-4413 for a quote that includes that documentation as standard.
A compliant quote includes the Florida Product Approval number for every unit, rough-opening flashing details, permit filing with Pinellas County, and final inspection coordination. A mainland quote often prices only the glass swap and omits flashing, permit, or compliance documentation, which leaves you holding a non-compliant opening and a potential non-renewal notice. We write line-item quotes so you can compare what every contractor is actually including. Estimates are free, and a live person answers when you call.
Call TruePane Windows & Doors at (954) 280-4413 to schedule your free estimate for custom windows and doors in Treasure Island. A live person answers every time, and we’ll put a written, line-item quote in your hands before you commit to anything.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Treasure Island and the greater South Florida region.
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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