Florida Window & Door Defect Attorney

Cory Cannon represents property owners across Tampa Bay whose windows, sliding glass doors, and exterior doors leak, fog, bind, or fail because of a defective product or a defective installation. We pursue the responsible parties (the builder, the installation contractor, the manufacturer, or some combination) as part of our construction defect practice. The initial consultation is free, and we will tell you plainly whether what you are seeing is worth pursuing.

Every window and every door is a hole cut in a wall. The structure around it can be sound, but the opening only performs if two things go right: the manufacturer built the unit to its rating, and the installer set it the way the product was tested to be set. When either step fails, water finds the opening, often slowly, behind stucco and drywall, for years before anyone sees it.

Defect Claim or Insurance Claim? Sort This First

If a storm broke your glass or blew in a door and your dispute is with your own insurance company over what it will pay, that is an insurance claim, not a construction defect: different defendants, different law, different deadlines. Start with our property insurance claims practice. This page is for openings that fail because someone made them, specified them, or installed them wrong.

Signs of a Defective Window or Door

Some opening defects announce themselves. Others stay hidden until the damage is advanced. Both matter legally, and the difference affects your deadlines. Watch for:

• Water stains, bubbling paint, or soft drywall at the corners of an opening or on the wall below a sill
• Fogging or condensation trapped between panes of glass: a failed insulated glazing unit (IGU), the sealed double- or triple-pane assembly inside the frame
• Sliding glass doors that bind, jump the track, or no longer latch square
• Stucco cracks radiating diagonally from the corners of windows and doors
• Swollen baseboards, buckled flooring, or a musty odor along the wall beneath an opening
• Water on the interior sill during ordinary wind-driven rain, not just severe storms
• Weep holes (the small drainage slots in a frame’s sill that let incidental water escape) missing, blocked, or sealed shut with paint or caulk
• Wood that gives when you press on the wall or floor below a window

Florida law distinguishes patent defects, which are visible or discoverable on reasonable inspection, from latent defects, which are hidden. A slider that never latched properly is patent. Water rotting the sheathing behind intact stucco is latent. As explained below, that classification changes when your limitations clock starts, and it is one of the first questions we analyze in any opening-failure case.

If you are seeing any of these now, three practical steps protect your claim. Photograph everything before anyone touches it, including the frame labels and any etching in the corner of the glass. Gather your paperwork: the contract, the proposal, the permit if one exists, and the closing documents if the home is new. And hold off on ripping out and replacing the openings until the conditions are documented; a completed repair can erase the strongest evidence of who caused the failure.

Where Window and Door Failures Start

Building the case starts with locating the failure. There are three places a window or door goes wrong, and each points at a different defendant.

Product defects

Sometimes the unit was defective when it left the factory: IGU seals that fail early and fog across an entire product line, laminated glass that delaminates, frame welds that crack, hardware that corrodes prematurely in coastal air, rollers and interlocks never rated for the weight of the door they carry. When the same product fails the same way across many homes, the claim may run against the manufacturer, and it overlaps with our defective building materials practice, which handles product-line failures.

Installation defects

Installation is where a large share of opening failures begin, and it is the hardest failure for an owner to see, because everything that went wrong is buried behind the finish. Recurring problems include:

• No pan flashing. Pan flashing is the waterproof tray under the unit that catches water and drains it back out. Without it, every drop that gets past the frame goes into the wall.
• Bad bucks. A buck is the wood member anchored in a masonry opening that the window fastens to. Undersized, untreated, or set over existing rot, it fails no matter how good the window is.
• Wrong fastening. Too few fasteners, the wrong type, or fasteners without the embedment depth the product’s approval documents require.
• Foam instead of anchors. Units held substantially by expanding foam rather than the tested fastener schedule.
• Backward laps. The water-resistive barrier (the house wrap behind the cladding) lapped in the wrong sequence around the opening, so it directs water into the wall instead of out.
• Caulk as the only defense. Sealant is maintenance, not waterproofing. An installation that relies on a bead of caulk to stay dry was designed to leak on a schedule.

Design and specification defects

Sometimes every unit was built and installed exactly as specified, and the specification was wrong. A design professional or design-build contractor may have specified a unit whose pressure rating was too low for the opening’s exposure, a non-impact product where the code required impact protection, or a sliding door sill with no realistic defense against wind-driven rain on an exposed elevation. Those claims run against the design side, and we handle them through our design defect practice.

One boundary note: if water is entering at many points (roof-to-wall connections, stucco fields, balconies, and openings alike), the problem is usually the envelope as a system rather than any specific window. That broader claim is covered on our water intrusion page. If the failures trace to the openings themselves, you are in the right place.

What the Florida Building Code Requires of Windows and Doors

Florida regulates windows and doors closely, and the paper trail that regulation creates is what makes these cases provable.

Design pressure. Every exterior window and door sold in Florida carries a design pressure (DP) rating: the wind load, in pounds per square foot, that the assembly withstood in laboratory testing: positive pressure pushing in, negative pressure pulling out. The Florida Building Code requires the installed unit’s rating to meet or exceed the pressures calculated for that specific opening, which depend on the site’s wind speed, the building’s height, and where on the wall the opening sits.

Product approval. Florida runs a statewide product approval system. Approved units carry a Florida product approval number (an “FL number”) or a Miami-Dade Notice of Acceptance (NOA), a county-issued approval developed for the High-Velocity Hurricane Zone and honored around the state. Approval documents are public and specific: they identify the tested configuration, the anchor type and spacing, the embedment depth, and the installation details the testing assumed.

Installation per the instructions. That last point decides cases. A window is approved as an assembly installed a particular way. The code requires installation in accordance with the manufacturer’s published instructions and the approval’s fastening schedule. An installer who substitutes anchors, skips flashing details, or changes spacing has, in a real sense, installed an untested product. A core step in our investigation is comparing what the approval documents require against what is actually in the wall.

Impact protection. Along much of the Tampa Bay coastline, the code designates wind-borne debris regions where glazed openings must be impact-rated (tested to large-missile standards such as ASTM E1996, in which a piece of lumber is fired at the glazing) or protected by shutters. Installing a non-impact unit where the code requires impact resistance is a code violation, not a judgment call.

The code has teeth. Section 553.84, Florida Statutes gives anyone damaged by a material violation of the Florida Building Code a civil cause of action against the party who committed it. There is a narrow exception where the work was permitted, the plans were approved, the required inspections passed, and the violation caused no personal injury or damage beyond the property that is the subject of those permits, plans, and inspections, and even then it does not protect a contractor who knew or should have known of the violation. Unpermitted work never qualifies for it.

The Impact-Window Retrofit Problem in Tampa Bay

After Hurricane Ian in 2022, and with insurance premiums pushing owners toward wind-mitigation upgrades, Tampa Bay saw a surge of impact-window and impact-door retrofits, a portion of it funded through state grant programs such as My Safe Florida Home. Demand at that scale pulls in new crews, out-of-area installers, and sales-driven companies that subcontract the actual installation to whoever is available that week. Some of that work was done badly, and the failures are surfacing now.

Retrofit installations fail in predictable ways:

• Replacement units set over the original bucks without anyone opening the wall to check for rot: a new window over an old leak
• New-construction flange details improvised into retrofit openings without proper flashing integration
• No permit pulled and no inspection passed, which removes the one independent check on the work, and strips the installer of the statutory inspection defense described above
• The unit on the contract not matching the unit in the wall; the frame label and the etching on the glass can be checked against the FL number or NOA on your paperwork
• Impact units installed with unapproved anchors or spacing, undercutting the rating the owner paid a premium for

If the company that sold or installed your windows was not properly licensed, additional statutes come into play, including one that bars unlicensed contractors from enforcing their own contracts. See our unlicensed contractor page.

Who Is Responsible for Defective Windows and Doors

Opening-failure cases often involve more than one responsible party, and each tends to point at the others: the manufacturer blames the installation, the installer blames the product, the builder blames both. Our job is to close off that finger-pointing with evidence before anyone touches the openings.

The builder or general contractor. On new construction, the builder answers for the work of its subcontractors, including the window installer. Florida law also implies warranties of fitness, merchantability, and habitability in a builder’s sale of a new home. If your home is newly built and the openings are failing, start with our new construction defect page.

The installation contractor. In a retrofit or replacement project, the installer’s contract is the spine of the claim: scope, product, price, and (often) a fee-shifting clause. If the installer was someone else’s subcontractor and you have no contract with them, code-violation and negligence theories may reach them anyway.

The manufacturer. Product warranties on windows and doors deserve a close read: most exclude damage from “improper installation,” which is precisely why manufacturers and installers point at each other. Warranty claims can have value, but they rarely cover the water damage or the labor, and they do not pause any legal deadline.

The design professional. Where the failure traces to the specification rather than the product or the labor, the architect, engineer of record, or design-build contractor may be the defendant.

For condominiums and HOAs, opening failures are frequently building-wide: dozens or hundreds of identical sliders installed the same wrong way. Associations have their own standing rules and longer pre-suit timelines; see our condo and HOA defect page.

For a broader map of claims against builders and contractors, see our guide, Can I Sue My Contractor in Florida?

The Chapter 558 Notice Process, Briefly

Before most Florida defect suits can be filed, chapter 558, Florida Statutes requires a pre-suit notice and opportunity-to-repair process. You serve a written notice of claim describing each defect in reasonable detail at least 60 days before filing suit, or at least 120 days for an association representing more than 20 parcels. The recipient may inspect within 30 days, or 50 days for those larger associations. A destructive-testing request is subject to statutory notice, tester-selection, timing, observation, habitability, and restoration safeguards. The recipient must respond in writing within 45 days, or 75 days for larger associations, with an offer to repair, an offer of money, a dispute of the claim, or a combination.

A 558 notice is technical drafting, not a formality. Defects you fail to describe can be challenged later, and a repair offer deserves the same line-by-line scrutiny as the original installation: an offer to recaulk is not an offer to reflash. We cover the process from both the sending and receiving side in our full guide to Florida’s 558 notice.

Deadlines: The Four-Year Clock and the Seven-Year Cliff

Two clocks control every Florida construction defect claim. Both live in section 95.11(3)(b), Florida Statutes.

The repose period is the cliff. A statute of repose is an absolute outer limit: unlike the limitations period, it does not wait for you to discover anything. The Legislature shortened it from 10 years to 7 in 2023, and the shorter window now governs: as of this writing, a building whose certificate of occupancy issued more than seven years ago is generally beyond the reach of a defect suit, however strong the proof. There are wrinkles: in a multi-building project, each building is treated as its own improvement with its own trigger date, and a model home’s clock starts when title first transfers to a buyer. But the direction of the law is toward shorter windows, not longer ones.

Treat every date on this page as a reason to act, not a substitute for advice. Trigger dates are frequently disputed, the 2023 amendments carried transition rules, and a misread deadline is unrecoverable. If your openings are failing, have a lawyer confirm your specific dates before you rely on them.

How We Investigate a Window or Door Defect Case

An opening-failure case is won with documents and testing, in that order.

Documents first. The permit file and inspection history. Your contract and its scope. The product approval (the FL number or NOA) and the installation instructions it incorporates. The manufacturer’s warranty. The labels and glass etching on the installed units. Much of this is public record, and discrepancies surface quickly: a unit with no approval for its installed configuration, a fastening schedule the installer never followed, a permit that was never pulled.

Then the physical evidence. We retain independent licensed engineers and building-envelope consultants to test rather than guess: moisture mapping and thermal imaging to trace water paths, and controlled water-spray testing under recognized field standards such as ASTM E1105 to reproduce the leak on the record. Where walls must be opened, we document conditions before anything is repaired: letting evidence disappear into a rushed fix is a common way owners weaken their own claims.

This is also where my background does its work. I am a Florida attorney who grew up around construction (generations in the Florida construction trades), and it shows in how I read a file. I go through installation instructions, contractor scopes, and repair estimates line by line, and when a builder’s proposed fix looks thin, I check its pricing and scope against real bids from licensed local contractors.

What a Window and Door Defect Claim Can Recover

A successful claim can recover the cost of correcting the openings (removal, proper materials, and reinstallation consistent with the approval documents), plus the consequential damage the failure caused: rotted framing and sheathing, stucco, drywall, flooring, and mold remediation. Where defects made parts of a property unusable, loss-of-use damages may be available. If your contract contains a prevailing-party attorney’s fee clause, fees may be recoverable as well; Florida law makes one-sided fee clauses run in both directions, which can cut for or against an owner and belongs in any honest case evaluation.

Fees and Costs

Owner-side defect claims may use contingency, hybrid, or hourly arrangements. The proposed structure depends on the size and posture of the claim, and we explain the terms and cost responsibilities in writing before representation begins. The initial consultation is free.

Serving Property Owners Across Tampa Bay

Tampa Bay is a demanding environment for openings: wind-driven summer rain, salt air, long stucco elevations, and coastal exposures that punish any shortcut in flashing or fastening. We represent homeowners, commercial owners, and associations in Tampa, St. Petersburg, Sarasota, Bradenton, and the surrounding communities.

Talk to Us Before the Clock Runs

If your windows fog, your sliders leak, or the wall below an opening has gone soft, the building is telling you something, and the deadlines above are already running. Contact Cory Cannon for a free consultation. Bring your contract, your permit paperwork if you have it, and photos of what you are seeing. We will tell you where the failure likely lives, who is likely responsible, and what your dates look like.