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Unilock Windows & Doors: The Miami Owner’s Guide
If you have a Unilock window or door with a failed hinge, worn weather seal, cracked glass unit, or a lock mechanism that no longer engages, we stock compatible replacement parts and install them across Miami, usually within one to two days of your call. Installed parts pricing for Unilock windows and doors in Miami typically runs $175 to $900 depending on what failed, whether we’re replacing a single balance, a full sash, a multipoint lock assembly, or a complete insulated glass panel. Most owners notice the failure slowly at first: a window that takes more effort to lift, a patio door that scrapes when it slides, or a lock that turns halfway before giving up.
Which Unilock Models This Applies To
Unilock builds its product lines around modular cassettes and standardized profiles, but the compatibility details vary by series and generation. The most common lines we work on in Miami include the Unilock 700 and 900 Series casement and awning windows, the Unilock sliding patio door system, and the Unilock bifold door stack. The hardware and gaskets we source fit both original Unilock sash and door panels, but there’s a gotcha: older Unilock frames, especially those installed before roughly 2012, used a narrower keeper channel for the multipoint locking hardware. If that’s your window or door, the new lock assembly needs a retrofit keeper plate, which we carry on the truck.
To identify your part, look for the Unilock name or logo etched into the corner of the glass spacer bar, or check the inside edge of the frame for a silver manufacturer label. Measure the visible glass width and the sash thickness; Unilock sealed units in Miami homes commonly run 7/8-inch or 1-inch overall thickness, and the replacement glass must match exactly or the sash won’t seal. We source genuine Unilock OEM hardware where it matters, like multipoint lock gearboxes and hinge assemblies, and we use high-quality aftermarket equivalents for wear items like weatherstripping, roller carriages, and balance springs, which keeps your repair cost realistic without compromising how the unit performs.
We’re an independent Miami service provider, not a Unilock affiliate, so we have no incentive to push one parts source over another. We match exactly what your window or door needs, and we tell you which parts make sense to buy in the original spec and which ones you don’t need to overpay for. We also stock hardware for KraftMaid, Cambria, and Silestone product lines, so if you have another brand in the house giving you trouble, tell us when you call.
Styles & brands we work with
Signs Your Unilock Windows & Doors Is Failing
- The sash drags or sticks when you open it. This is usually the lower hinge assembly or roller carriage wearing out, and in Miami’s humidity, runout on those parts accelerates because the aluminum track picks up corrosion. Once the sash starts dragging, it’s only a matter of weeks before the hinge binds completely.
- You feel a draft even when the unit is closed and locked. The weatherstrip bulb or the corner seal has compressed permanently, which happens faster in south Florida heat. A closed window that still breathes is a sign the seal profile has collapsed and needs replacement, not adjustment.
- The handle turns but the lock doesn’t engage or releases on its own. That’s the multipoint gearbox stripping, a known failure on Unilock door sets that get daily use. If you can spin the handle freely or the door doesn’t pull tight at the top and bottom, the gearbox is done.
- Condensation sits between the two panes of glass. Once the insulated glass unit’s seal fails, the desiccant inside is saturated and the pane will fog permanently. There’s no drying that out; the sealed unit gets swapped.
- The window slams down when you try to close it. On double-hung Unilock sashes, that’s the balance spring letting go. Do not attempt to force the sash or remove the spring yourself: a loaded balance carries real tension and can cause serious hand injuries. Call us instead.
See the difference
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After
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AfterReplacement Cost & What’s Included
Here’s what Unilock window and door part replacement typically runs in Miami, parts and labor together. These are installed prices; there is no separate trip charge or surprise line item.
| Repair Type | Installed Price Range |
|---|---|
| Weatherstrip and seal replacement (per unit) | $175 – $385 |
| Hinge or roller replacement (per panel) | $225 – $520 |
| Multipoint lock gearbox or handle set | $310 – $690 |
| Double-hung balance spring replacement (per sash) | $195 – $410 |
| Insulated glass unit replacement | $420 – $900 |
The range comes down to the hardware series, whether the frame needs the retrofit keeper we mentioned earlier, and how much disassembly the repair requires. We give you a written price before any work starts, and that number holds. Every Unilock parts repair we do in Miami is covered by our 365-Day Done Right Promise. If the part fails within a year, we come back and make it right at no charge. That’s in writing, on every job.
DIY or Call Us?
Some things you can do yourself safely. You can tighten a loose handle screw, clear debris from a track, and wipe down the weatherstrip with a damp cloth to check for cracks. What you should not attempt is anything involving spring tension or a failed sealed glass unit. Unilock balance springs are under load even when the sash is out, and removing one without the right tool can send the spring across the room. I’ve seen a few DIY attempts in Coconut Grove that ended with a broken window and a bloodied knuckle, and Trevor Nash will tell you the same: some parts of the job aren’t glamorous, but they’re still ours to handle. Give you a number first, then pick up the tools. Call (850) 988-7559 and we’ll get the right part matched and scheduled.
FAQs
Plan on 10 to 15 years for hinges and lock gearboxes, and 8 to 12 years for weatherseals and insulated glass units, because Miami’s salt air and summer heat shorten the life of rubber gaskets and seals. Coastal exposure in neighborhoods like Brickell or Key Biscayne tends to age hardware toward the shorter end. Call (850) 988-7559 and we’ll tell you whether you’re at the repair stage or the replace stage before we schedule anything.
Lock gearboxes and balance springs are sealed assemblies, so they get replaced rather than rebuilt. Hinges and rollers can sometimes be cleaned and lubed if caught early, but once they’re worn past the point of smooth travel, a new part is the only fix that lasts. We’ll show you the worn part and explain what failed before we install the replacement.
A hinge, roller, or lock assembly swap takes 45 minutes to an hour and a half per unit; an insulated glass unit takes an hour to two hours including removal and resetting. We usually complete most Unilock repairs in one visit once the part is confirmed. Call (850) 988-7559 and we’ll give you a straight time estimate along with the price.
We stock the most common Unilock hinges, roller carriages, multipoint lock gearboxes, keepers, and weatherseal profiles in our Miami service vehicles, and we order specialty glass and less common hardware before we schedule your visit so you don’t wait through a second trip. A live person answers our phone 24/7, so call (850) 988-7559 and we’ll tell you in real time if your part is on the truck.
Written by Trevor Nash, Owner, Penhallow Remodeling Miami at Penhallow Remodeling Miami, serving Miami and nearby areas.
