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Unilock Windows & Doors: The Fort Worth Owner’s Guide
We stock and install Unilock-compatible window and door hardware, weatherstripping, hinges, rollers, and locking mechanisms right here in Fort Worth. Typical installed part replacement runs $180 to $850 per window or door depending on the component. Most Unilock-specific parts we carry on the truck, which means we can usually get your window or door working right the same day you call. Homeowners typically discover a failed Unilock part the hard way: a door that suddenly sticks, a window that drops an inch when you open it, or a lock that spins without catching. Curtis Lane has torn apart enough of these units across Tarrant County to know exactly which components fail first in Texas heat, and we keep the common ones in inventory so you’re not waiting on a backorder from up north.
Which Unilock Models This Applies To
Unilock has built its reputation on modular retaining walls and paver systems, but their window and door division (often bundled through high-end home builders) followed a different set of specs than your standard big-box brands. The compatibility gotcha we see constantly: Unilock window and door components are keyed by millwork code, not model year. That code is stamped on the inside edge of the sash or on the hinge leaf. Take a photo of it before you call anyone. It tells us whether you’re working with their Series 3200 casement line, the 4100 sliding door track system, or one of the early 2000s builder-grade units that came through DFW developments like Mira Vista and Monticello. For most Unilock windows and doors, we recommend OEM parts when the failure is in the locking mechanism or the multi-point hardware, because tolerances there are tight. For rollers, weatherstripping, and balance shoes, a quality aftermarket equivalent from Caldwell or Prime-Line typically runs 40-60% less and holds up just as well. We’ll tell you which is which before you spend a dollar.
Styles & brands we work with







Signs Your Unilock Windows & Doors Is Failing
- The door drags or catches at the threshold. This is almost always a worn roller assembly or a bent hinge leaf. Fort Worth’s clay soil shifts seasonally, and that movement torques door frames. A roller that’s 15 years old in north Texas is on borrowed time.
- The window drops when you tilt it in for cleaning. That’s a failed balance shoe or a snapped block-and-tackle cord. Unilock used nylon shoes on most of their tilt-in lines. Nylon gets brittle after ten summers of attic-hot airflow, and once it cracks, the window won’t hold position.
- The multi-point lock turns but never engages. The gearbox inside the lock body strips. We see it on patio doors where the handle gets forced before the door is seated. Once that gearbox goes, no amount of adjusting will save it.
- The weatherstripping is peeling or flat. Fort Worth’s UV index beats on south- and west-facing weatherstripping. When it flattens out, you start feeling air movement at the sill. That’s not a comfort issue; it’s a dollars-leaking-out-of-the-house issue.
- The pane fogs between the glass. The insulated glass unit seal has failed. The only fix is replacement of the IGU or the sash. Unilock units from the late 2000s are prone to this on the west side, where afternoon sun cooks the sealant.
See the difference
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After
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After
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AfterReplacement Cost & What’s Included

Here are the installed price ranges we quote in Fort Worth for the most common Unilock window and door repairs:
- Roller assembly replacement (sliding door): $180 – $350 per door, including the rollers and track cleaning.
- Balance shoe replacement (tilt-in window): $200 – $400 per window.
- Multi-point lock and gearbox replacement: $300 – $600 per door, depending on OEM vs. aftermarket hardware.
- Weatherstripping full-replace (door or window): $150 – $350 per unit.
- Insulated glass unit replacement: $400 – $850 per sash, up to $1,200 for oversized or specialty glass.
Every price we give includes the part, labor, and haul-away if we’re pulling an old sash or hardware set. You’ll get that number in writing before the repair starts. No numbers that move at the door. All repair work carries the 365-Day Done Right Promise: if a repaired window or door fails inside that year, we come back and make it right at no charge. That’s in writing too.
DIY or Call Us?
If your Unilock window or door is sticking, drag, or has weatherstripping falling loose, it’s worth cleaning the track and checking for debris. That’s about an hour and costs nothing. But once you get into spring tension, balance shoes, or multi-point hardware, stop. Those balance systems hold enough stored tension to pinch a finger clean through when they release, and a multi-point lock gearbox is easy to fumble into a worse position. We’ve fixed the results of those weekend attempts more than a few times, and the second repair always costs more than the first one would have. If you’re in Fort Worth and you’re not sure whether it’s a DIY job or a call-us job, call us anyway at (682) 204-4897. We’ll talk you through it and never talk you into a repair you don’t need.
FAQs

Most Unilock windows and doors last 15-20 years with proper maintenance, but certain components fail earlier in this climate. Rollers typically last 10-12 years. Balance shoes go 8-15. Weatherstripping needs replacement every 5-8 years due to UV damage and Texas heat cycles. The frame and sashes are well-built; the moving parts are what wear out first. Call (682) 204-4897 and we’ll tell you whether your unit is worth repairing or replacing.
In most cases, yes, the part can be repaired or replaced without replacing the whole unit. I’ll be honest with you though: sometimes a failed IGU seal or a severely warped frame makes repair economically irrational. If a sash replacement runs $450 and a full window replacement starts at $600 per unit with new efficiency ratings, the math tells you where to go. We lay out both options in writing and let you choose. Estimates are free.
Most roller, lock, and weatherstripping replacements take 30 minutes to 2 hours. An insulated glass unit replacement runs 1-3 hours depending on the sash and whether we’re ordering glass or pulling from local supply. We arrive with the most common Unilock-compatible parts already on the truck, so we usually finish in one trip. Call (682) 204-4897 to schedule a time that works for you.
We stock the most common Unilock-compatible rollers, balance shoes, weatherstripping, and multi-point lock hardware at our Fort Worth location. Less common components can typically be ordered within a few business days. We also keep components for KraftMaid, Cambria, and Silestone systems in our inventory for other parts of the house. If you need a specific part, call (682) 204-4897 with the millwork code and we’ll tell you in five minutes whether it’s on the truck or on order.
If your Unilock window or door isn’t working right, you don’t need another opinion. You need the right part, a fair price, and a straight timeline. That’s what we do. Call (682) 204-4897 for a free estimate on your window or door repair. Straight scope, firm price, no surprises at final walkthrough.
Written by Curtis Lane, Owner, Bradford Remodeling Co Fort Worth at Bradford Remodeling Co Fort Worth, serving Fort Worth and nearby areas.


