8414 Sabal Industrial Blvd, Tampa, FL 33619
Hurricane Strong. STH Strong
Mon – Fri 8:00AM – 5:00OM / Sat-Sun – Closed
8414 Sabal Industrial Blvd, Tampa, FL 33619
Hurricane Strong. STH Strong
Mon – Fri 8:00AM – 5:00OM / Sat-Sun – Closed
August 15, 2026 · Reading time: ~11 min
To see how this plays out in the real world, let’s look at a project we recently consulted on for a homeowner living in a beautiful 1990s-built home in South Tampa, just blocks from Bayshore Boulevard.
The home featured beautiful wood-clad Semco casement windows. However, after years of exposure to the humid salt air blowing off Hillsborough Bay, almost all the crank mechanisms on the front of the house were completely seized. Two of the windows were stuck slightly open, allowing hot air and moisture to leak into the home. With hurricane season approaching, the homeowner was desperate to get these windows locked tight but didn’t want to spend tens of thousands of dollars replacing perfectly beautiful wood windows if they could avoid it.
Our team stepped in to help. First, we inspected the wood frames and verified that the exterior aluminum cladding was still in great shape with no signs of rot. We then identified the crank hardware as Truth Entrygard operators.
We sourced exact-match aftermarket stainless steel operators and heavy-duty hinges designed to withstand coastal environments. Within a few days, we swapped out the corroded gears, replaced the dry-rotted bulb weatherstripping, and lubricated the tracks. The windows now open effortlessly and lock tightly, saving the homeowner thousands of dollars while fully restoring the home’s security and energy efficiency.
Yes, you can still find replacement parts for your Semco windows and doors, even though the manufacturer went out of business years ago. Because Semco Classic Windows and Doors closed its doors back in late 2019, you can’t just call up the factory or walk into a big-box store to order original components. Instead, you have to rely on high-quality aftermarket hardware or work with local specialists who know how to cross-reference obsolete parts.
This guide is for homeowners in the Tampa Bay area who are dealing with sticky, drafty, or broken Semco windows and want to find exact replacement hardware without replacing the entire unit. Whether you need a new crank mechanism for a casement window or a replacement sash balance for a double-hung, we will show you exactly how to identify, source, and install the parts you need to keep your home secure.
For decades, Semco was a respected name in the wood and clad-wood window market. They built beautiful, high-end products that found their way into thousands of homes across the country, including many custom builds throughout Florida. But when a manufacturer abruptly disappears, homeowners are left holding the bag.
In December 2019, Semco Classic Windows and Doors officially ceased operations and entered receivership. This wasn’t just a temporary pause; the manufacturing plants shut down, the tooling was sold off, and the production of original equipment manufacturer (OEM) parts stopped instantly. Because of this, there is no central warehouse of “official” Semco parts left. Every replacement part you buy today is either remaining old stock or, more commonly, an aftermarket match produced by third-party hardware manufacturers.
If you live in Tampa, Clearwater, or St. Petersburg, your windows work twice as hard as those in milder climates. Our relentless humidity, intense UV exposure, and salt-laden air from the Gulf of Mexico create a brutal environment for window hardware.
Metal operators rust, plastic glazing beads become brittle and crack under the baking sun, and high winds push moisture past worn-out weatherstripping. When you combine an obsolete window brand with Tampa’s aggressive coastal climate, minor hardware failures can quickly turn into major water intrusion issues if they aren’t addressed immediately.
“In Florida, a window isn’t just an architectural detail; it’s your primary defense against 90% humidity and tropical downpours. When a niche manufacturer like Semco goes under, local homeowners have to be proactive about sourcing replacement hardware before a minor leak becomes a costly structural repair.”
Before you order any parts online, you have to do some detective work. Because Semco used different suppliers for their hardware over their decades of operation, simply knowing you have a “Semco window” isn’t enough to buy the right part. You need to identify the specific OEM supplier Semco used for that particular window line.
Start by looking at the corners of your window glass. You are looking for a tiny, etched logo or stamp in the glass itself. This is the glass manufacturer’s mark, which often includes a date code.
Next, open the window and look along the inside of the frame (the jamb) or on the top of the sash for a silver or gold sticker from the American Architectural Manufacturers Association (AAMA). This label often contains manufacturer codes (like “SEC-1” for Semco) and series numbers that can help a professional identify the exact window line you have.
If your double-hung window won’t stay open, your sash balances are shot. Semco frequently used block-and-tackle balances (metal channels with a spring and pulley system inside). To replace these, you must remove the balance and measure the length of the metal channel. Do not include the plastic top and bottom guides in this measurement—just the metal channel itself. You also need to look for a stamped number on the channel (e.g., “2730” or “27-3”), which indicates the weight capacity of the internal spring.
For casement windows that crank outward, you need to measure the arm of the operator. Measure from the center of the gear mechanism to the tip of the arm. Semco heavily relied on Truth Hardware (now owned by AmesburyTruth) for their crank mechanisms. Identifying the “Truth” part number stamped on the casting is often the easiest shortcut to finding an exact match.
Weatherstripping keeps the hot, humid Tampa air outside where it belongs. If you see black or beige foam seals starting to crumble, you need to pull a small piece out of its slot (called the kerf) and look at its cross-section. Semco windows typically used “T-slot” or “barb” style foam weatherstripping. You will need to measure the width of the bulb and the depth of the slot to ensure your replacement profile creates a tight seal without preventing the window from locking.
Once you have your measurements and photos, it’s time to source the parts. You have two main routes: national online specialty distributors or local window repair experts here in the Tampa area.
Several national distributors specialize in sourcing and stocking obsolete window hardware. Companies like SWISCO and Strybuc Industries are excellent resources for DIY homeowners. They maintain massive catalogs of aftermarket parts designed to mimic the exact dimensions of old Semco components. If you upload a photo to their forums, their staff can often identify the exact replacement part number you need within 24 hours.
While online shopping is great for a single lock or crank handle, working with a local specialist like STH Windows & Doors offers distinct advantages. We understand the specific wind-load and moisture challenges of the Tampa Bay market.
We know which aftermarket parts hold up best against coastal salt air and which ones fail prematurely. Plus, if you aren’t comfortable taking your window sash out to replace a broken balance, a local team can handle the sourcing and the installation in one visit, ensuring your home remains secure and weather-tight.
| Sourcing Option | Pros | Cons | Best For |
|---|---|---|---|
| Online Distributors (e.g., SWISCO) | Massive inventory; helpful identification forums; good for single parts. | You must do all measuring and installation yourself; shipping delays. | Experienced DIYers looking for a single, small component. |
| Local Tampa Specialists (e.g., STH) | Expert installation; local climate knowledge; no measurement errors; warranty on labor. | Higher upfront cost than buying a single part online. | Homeowners with multiple failing windows or complex hardware issues. |
Certain components on Semco windows are notorious for wearing out faster than others, especially in our warm, humid environment. Here is what to look out for and how to handle the repairs.
If your Semco casement window won’t crank open, or if the handle spins freely without moving the window, the internal gears of the operator are likely stripped or rusted solid. Most Semco casement windows utilized AmesburyTruth entry-guard or split-arm operators.
To replace them, you’ll need to open the window (or manually push the sash open if the gears are stripped), unscrew the operator from the wooden sill, disconnect the arm from the track on the bottom of the sash, and drop the new operator into place. Always opt for stainless steel replacement hardware if you live near the water to prevent future rust.
When the spiral or block-and-tackle balances inside a double-hung window break, the window becomes incredibly heavy and won’t stay up on its own. Semco double-hungs typically used block-and-tackle balances.
Replacing these requires tilting the window sash inward, removing it from the frame, and unscrewing the balance channels from the side jambs. It is a straightforward job, but you must replace both balances at the same time. Replacing only one side puts uneven tension on the sash, which will quickly ruin your new balance and cause the window to bind.
The glazing bead is the vinyl or wood strip that holds the glass unit securely against the wood sash frame. Over time, Florida’s intense UV rays degrade vinyl glazing beads, causing them to crack, shrink, and pull away from the glass. This allows water to pool inside the wood sash, leading to wood rot. Replacing these beads requires snapping out the old, brittle vinyl and pressing new, color-matched aftermarket vinyl beads into the groove. Doing this before hurricane season can save you from catastrophic water damage during a major storm.
At some point, every homeowner with obsolete windows has to ask the hard question: Is it worth continuing to patch up these old Semco units, or is it time to invest in modern replacements?
While a single aftermarket crank operator might only cost $40 to $80, the costs quickly add up if you have multiple windows failing. If you have to hire a technician to repeatedly diagnose, source, and install hard-to-find parts across a dozen windows, you are spending money on a temporary fix. Wood rot is another major factor. If water has bypassed failed weatherstripping and rotted the bottom rail of your Semco wood sash, no amount of new hardware will fix the structural decay.
Older Semco windows, even when in perfect working order, do not match the thermal performance or structural integrity of modern windows. Today’s impact-resistant windows feature advanced low-E glass coatings that block out the intense Florida heat, drastically lowering your cooling bills.
Furthermore, upgrading to modern impact windows eliminates the need for hurricane shutters and provides continuous, 24/7 protection against storm winds and intruders. If your Semco windows are drafty, hard to open, and showing signs of wood rot, investing in replacement windows is often the smarter, safer, and more financially sound long-term decision.
To see how this plays out in the real world, let’s look at a project we recently consulted on for a homeowner living in a beautiful 1990s-built home in South Tampa, just blocks from Bayshore Boulevard.
The home featured beautiful wood-clad Semco casement windows. However, after years of exposure to the humid salt air blowing off Hillsborough Bay, almost all the crank mechanisms on the front of the house were completely seized. Two of the windows were stuck slightly open, allowing hot air and moisture to leak into the home. With hurricane season approaching, the homeowner was desperate to get these windows locked tight but didn’t want to spend tens of thousands of dollars replacing perfectly beautiful wood windows if they could avoid it.
Our team stepped in to help. First, we inspected the wood frames and verified that the exterior aluminum cladding was still in great shape with no signs of rot. We then identified the crank hardware as Truth Entrygard operators.
We sourced exact-match aftermarket stainless steel operators and heavy-duty hinges designed to withstand coastal environments. Within a few days, we swapped out the corroded gears, replaced the dry-rotted bulb weatherstripping, and lubricated the tracks. The windows now open effortlessly and lock tightly, saving the homeowner thousands of dollars while fully restoring the home’s security and energy efficiency.
No, Semco Classic Windows and Doors officially closed down and went out of business in December 2019. Because of this, original factory-direct replacement parts are no longer manufactured, forcing homeowners to rely on third-party aftermarket hardware suppliers.
Yes, you can use high-quality aftermarket parts. Many hardware manufacturers produce components designed to match the exact specifications, hole patterns, and dimensions of original Semco hardware, particularly for casement cranks and double-hung balances.
You can find replacement sash balances through specialty online hardware distributors like SWISCO or by contacting a local window repair specialist in Tampa. Be sure to measure the exact length of the metal channel before ordering.
Tampa’s high humidity and salt air accelerate the corrosion of metal crank operators and hinges. Additionally, intense UV rays degrade vinyl weatherstripping and glazing beads, which can lead to wood rot if they are not replaced promptly.
For a deeper look, see Westcoast Windows and Doors: Composite Frame Specifications.
Don’t spend hours searching for obsolete parts online. Contact our local Tampa window experts today to find the perfect replacement hardware or explore modern, hurricane-ready upgrade options.
Don't spend hours searching for obsolete parts online. Contact our local Tampa window experts today to find the perfect replacement hardware or explore modern, hurricane-ready upgrade options.
