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 Largo
Custom windows and doors in Largo almost always mean one of two things: replacing the original jalousie windows that insurers will no longer cover in a 1950s-1970s CBS ranch, or fitting an older home for aging in place with wider openings, zero-threshold doors, and low-maintenance impact glazing. TruePane has done both across Largo for years, and we understand the masonry complications that come with concrete block construction. If you’re in Largo and looking at a non-renewal letter from Citizens or just want a straight answer on what a Custom Windows & Doors project will cost, call (813) 320-9346. A live person answers.
Why TruePane Windows & Doors Is Largo’s Preferred Custom Windows & Doors Company
We’re not a franchise that opened a Largo office last spring. TruePane was founded by second-generation glazier Dale Kessler in 2008 on a rule that’s still on the whiteboard: if the pane is not true, the job is not done. That standard travels with every crew we send into Largo’s 33770 and 33771 zip codes, from Keene Park to Harbor Hills to the neighborhoods off East Bay Drive.
Our crews know Largo’s housing stock. They’ve cut and patched more CBS block openings around Indian Rocks Road and Ulmerton Road than most installers will see in a career. They know that a 1963 ranch near the Largo Central Park Nature Preserve has different rough openings than a 1972 split-level off Starkey Road. And they know that Gulf salt air works on aluminum frames faster than anyone expects. That local knowledge shows up in quotes that are accurate the first time and installs that don’t leave gaps you’ll find in August.
We are Largo’s local Custom Windows & Doors team for a reason: background-checked, uniformed technicians who measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers before the truck leaves your driveway. Every job is covered by our 90-Day Done Right Promise. If it isn’t right, we make it right, no paperwork and no arguing.
Our Custom Windows & Doors Services in Largo
Custom Shape Windows
Older Largo ranches and newer custom homes both call for shapes that don’t come off a shelf: octagons, eyebrow arches, rake-head trapezoids, and radius picture windows over a fixed transom. We measure, template, and order every custom shape from manufacturers like ES Windows and Andersen, then set them into the existing opening, whether that opening is framed lumber or cut-and-patched block. In Largo, a custom radius or geometric window typically runs $900-$2,800 per unit depending on size, glass package, and whether the opening needs masonry modification. We quote it on paper before any work starts.

Commercial Storefront Glazing
Largo’s retail storefronts along West Bay Drive and Missouri Avenue take a beating from afternoon sun and wind-driven rain. We replace cracked and fogged storefront glass, rebuild aluminum storefront framing, and install impact-rated storefront systems that meet Pinellas County’s wind-load requirements. Most commercial glazing calls in Largo involve failed insulated glass units or doors that no longer close square, and we handle both. A typical storefront glass replacement in Largo runs $700-$2,200 per lite, with full frame rebuilds quoted per opening.

Curtain Wall Systems
Low-rise commercial and multifamily buildings in Largo use curtain wall systems that eventually leak around the mullions or develop interior condensation between glass layers. We service and replace curtain wall glazing with systems from PGT and CGI that carry Florida Product Approval numbers required in Largo’s Wind-Borne Debris Region. Curtain wall glass replacement in Largo generally runs $1,100-$3,800 per bay depending on height, access, and impact rating. We’ll give you line-item pricing before you commit.

Architectural Grilles & SDLs
Homeowners in Largo’s 55+ communities often want the divided-light look without the maintenance of true individual panes. Simulated divided lites (SDLs) and architectural grilles installed between or on the glass give you the traditional six-over-one or prairie-grid appearance while keeping a single insulated glass unit that’s easier to clean and seals better in salt air. We install internal and external grilles on most manufacturer lines we carry. Adding SDLs to a standard window in Largo typically adds $120-$380 per unit depending on pattern and finish.

Oversized Glass Panels
Replacing a fixed picture window or sliding glass door wall with oversized panels changes how a Largo home lives. But the wind loads here are serious: design speeds near 150 mph mean those big panels have to be thick, laminated, and anchored into structure that can hold them. We’ve installed oversized impact panels up to 120 inches wide in Largo homes, and every one got a permit, an inspection, and both warranty layers registered in writing. Expect $2,800-$9,500 for a large fixed or sliding panel system, including anchoring and finish work.

What happens when you call
- 1
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 Largo
We’re an authorized installer for more than a dozen manufacturer lines, and in Largo we quote Andersen, ES Windows, and ECO Window Systems side by side on paper so you can compare glass packages, impact ratings, and frame materials without a salesman’s spin. Parts for common hardware and weatherstripping on these lines are stocked locally, which means a patio door roller or multi-point lock replacement in Largo doesn’t leave you waiting on a slow freight shipment from out of state. We service what we install, and we service plenty we didn’t install.
Common Custom Windows & Doors Problems We See in Largo Homes
- Jalousie windows flagged by insurers. Citizens Insurance and private carriers are actively non-renewing Largo homeowners whose 1950s-1970s CBS ranches still have original jalousie louvers. These windows offer almost no wind or water resistance, and replacing them usually means cutting and patching concrete block to fit modern impact-rated units. That’s masonry work most window companies can’t do. We can.
- Salt-corroded aluminum frames and hardware. Homes within a few miles of the Gulf get constant salt mist that oxidizes standard aluminum frames, locks, rollers, and weatherstripping within a few seasons. Owners often find sashes binding, locks that shear off, and fogged insulated glass from seal failure. Marine-grade finishes and stainless hardware solve it long-term.
- Out-of-square CBS rough openings. Concrete block openings from the 1950s and 1960s were rarely built to modern standard sizes and are seldom perfectly square. A crew without block-cutting and patching skill produces gaps, leaks, or anchors that fail a wind-load test. We cut, patch, flash, and set every replacement to fit the wall, not just the window.
- Aging-in-place doors that don’t work anymore. Narrow doorways, raised thresholds, and worn sliding tracks make staying in a Largo home harder than it should be. We install wider swing doors, zero-threshold entries, and smoother sliding systems that make a single-level ranch actually work for someone planning to stay twenty more years.
Pricing for Custom Windows & Doors in Largo, FL
Here are honest ranges for Largo’s market. A custom shape window in a CBS ranch runs $900-$2,800 installed. An impact-rated casement or single-hung replacement runs $850-$2,400 per opening including masonry patching if needed. A full jalousie-to-impact replacement on a three-bedroom ranch, five to seven openings, typically lands between $8,000 and $19,000 depending on glass package, frame material, and how much block cutting is required. Oversized sliding glass door systems run $2,800-$9,500. Zero-threshold swing doors start around $1,400 and go up with impact rating and width. What changes the price most in Largo is the masonry: openings that need cutting and patching add $200-$600 per opening. The estimate is free, it’s on paper, and the price doesn’t change once we start. Call (813) 320-9346 to schedule yours.
We Also Serve Cities Near Largo
TruePane crews work across Pinellas County, including Belleair Beach, Indian Rocks Beach, Clearwater, and Seminole. If you’re outside Largo proper but still in the county, the same crews, same warranty coverage, and same flat pricing apply. Call (813) 320-9346 and we’ll tell you when we can be there.
Serving Largo, FL - Our Local Coverage Area
We’re based in the Largo 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 Largo
In most cases, yes. Largo sits entirely within Florida’s Wind-Borne Debris Region, and insurers, including Citizens, are actively non-renewing policies on homes with original jalousie windows because the louvers offer essentially no wind or water resistance. Replacing them with impact-rated units that carry Florida Product Approval numbers is the standard path to restoring insurability. Call (813) 320-9346 for a free assessment and a written quote on what your specific openings will need.
The existing block opening is measured, then typically cut larger or squared up with a concrete saw, patched and leveled with mortar, and flashed before the new impact-rated frame is anchored in place. We handle the cutting, patching, and anchoring in-house; it’s not subcontracted to a masonry crew. This usually adds $200-$600 per opening depending on how much block has to move.
Yes. We regularly install wider entry doors, zero-threshold transitions, and crank-out or sliding windows that don’t require lifting or awkward reaching. In a single-level CBS ranch, most of these changes can be done inside the existing footprint. Door widening may require a permit and header work; window changes to existing openings generally don’t require reframing. Call (813) 320-9346 and we’ll walk you through what your home needs.
Largo sits on the Pinellas Peninsula, five to seven miles from the Gulf, and the salt air that comes off the water accelerates oxidation on non-marine-grade aluminum frames and hardware. Most builders in the 1960s and 1970s installed standard anodized aluminum with steel screws, which pits and binds after a few seasons. We specify marine-grade finishes and stainless fasteners on every Largo install for exactly this reason.
Yes. Pinellas County requires a permit for window and door replacement in a wind-borne debris region, and the products must carry Florida Product Approval. We pull the permit, schedule the inspection, and keep the paperwork in order so your insurance compliance is documented. It’s part of every quote, not an add-on.
If your Largo home still has jalousie windows, corroded frames, or doors that don’t open the way they should, call (813) 320-9346. We’ll measure, quote on paper, and do the work right. That’s been the standard since Dale Kessler started this company, and it’s the standard we bring to every Largo driveway.
Written by Dale Kessler, Owner at TruePane Windows & Doors.
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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