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Unilock Windows & Doors: The Dallas Owner’s Guide
Mason Remodeling Co Dallas stocks and installs Unilock-compatible windows and doors for Dallas homeowners, with that work typically falling between $800 and $6,500 installed depending on whether you need a single window part, a full window replacement, or a complete door system. We’ve been handling Unilock products in Dallas homes since 2004, and most window or door repairs that involve a failed part are finished in one visit. The first sign something has gone wrong is usually subtle: a window that no longer closes without a fight, a door that catches along its frame for the first time in years, or a bathroom window that fogs up between its panes and won’t clear. By the time a locked window or a sagging door is obvious, the underlying hardware has usually been wearing out for months.
Which Unilock Models This Applies To
Unilock product lines vary in how they handle locking hardware, glass seal assemblies, and frame construction, and that determines which replacement parts will actually work. Before you buy anything off a parts website, check the white or silver label along the window or door edge: the series name, size code, and manufacturing date are printed there, and a part that is off by a quarter inch will not seat correctly. Unilock’s casement windows, for instance, use a different hinge geometry than their double-hung units, and a sash lock for one will not function on the other even if the mounting holes happen to line up.
The OEM-versus-aftermarket decision matters here more than most brands. Unilock’s original hardware is built to match the frame tolerances exactly, and while quality aftermarket equivalents from brands like KraftMaid or trim hardware suppliers often work fine for surface-mounted handles and keepers, anything involving a balance system, pivot point, or compression seal is best matched OEM. Around Dallas, the heat and humidity cycles put real stress on window seals and door weatherstripping; a generic part installed in March may fail by August. We keep common Unilock-compatible parts on hand in Dallas and can usually match a homeowner’s model from the edge label within a few minutes on the phone.
Styles & brands we work with
Signs Your Unilock Windows & Doors Is Failing
- Window won’t stay open or closed: The balance system inside the side channels has lost tension, common in Dallas homes where the dry winter air followed by humid spring months causes the plastic components to degrade faster than manufacturers expect.
- Condensation or fog between glass panes: The insulated glass unit’s seal has failed and the desiccant inside is saturated. In Dallas, a failed seal shows up as a permanent film across the glass, especially on west-facing windows that catch the afternoon sun.
- Door catches or scrapes the frame along the top or strike side: The hinge screws have pulled loose or the frame has shifted with foundation movement. Dallas homes on clay soil see this all the time; a door that scrapes in summer may close fine in winter and then bind again in spring.
- Lock bolt won’t fully throw or the handle spins without engaging: The internal gearbox or lock body has stripped, which on Unilock multipoint door hardware means replacing the lock assembly rather than a single small part.
- Window or door feels drafty even when closed: The weatherstripping or compression seals have flattened past recovery, which is the first thing to check before assuming the whole frame must be replaced. On Unilock doors, the adjustable astragal at the bottom is often the culprit.
See the difference
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AfterReplacement Cost & What’s Included
What you’ll pay in Dallas depends on how much of the system has failed. A single failed window balance or hinge set usually runs $150 to $500 in parts and labor. Replacing the insulated glass unit in a Unilock window because of a blown seal typically falls between $300 and $1,200 per sash depending on glass size and low-E coating. A full Unilock door lock assembly replacement, including the multipoint lock body and handle set, runs $400 to $1,800; a whole door swap starts around $1,500 and can exceed $6,500 for larger or exterior-grade units. What drives the range is access, glass type, and whether the frame itself has shifted to the point that the whole opening needs to be reset before the new part will operate correctly.
Every one of those prices is written down before we start, and it includes the part, the labor, and disposal of the old hardware. Our 365-Day Done Right Promise applies to Unilock part replacements just like it does to larger remodels: if the work isn’t right within a year from the completion date, we come back and make it right at no cost to the homeowner. No surprise invoices after the fact. No verbal estimate that grows.
DIY or Call Us?
Some Unilock repairs are genuinely simple: replacing a surface-mounted handle, tightening hinge screws, or replacing a weatherstrip that has flattened. If you can see the screw that holds the part in place and the part isn’t under tension, you can probably handle it. What goes wrong in Dallas is when a homeowner assumes the issue is the glass or the lock when the real problem is that the frame has shifted and the whole opening is out of square. You can replace a lock body, and it will fail again in eight weeks because the door isn’t seating in the frame the way it did when the house was new.
For anything involving window balances or springs under tension, call us at (432) 302-8761. Those balance systems store enough energy to take off a fingertip if they release the wrong way. There’s also the truth that a mismatched part turns a one-hour fix into a three-week frustration. If you’d rather know who is coming, what it will cost, and what happens if it fails within a year, call (432) 302-8761 and we’ll walk through it on the phone in plain language.
FAQs
Plan on 15 to 25 years for window frames and door slabs, but the moving hardware and seals typically need replacement at the 8 to 12 year mark in Dallas conditions. Our summers and the clay soil movement under local foundations shorten the life of hinges, balances, and weatherstripping compared to the manufacturer’s national average. If your Unilock products are older than a decade and showing two or three of the signs above, replacing the parts now is usually cheaper than waiting for a full frame failure. Call (432) 302-8761 for an exact read on your window or door.
Some can be. A door handle with a stripped set screw can usually be repaired with a thread insert; a window sash that is sticking can sometimes be freed by realigning the track. But a blown insulated glass unit, a snapped balance spring, or a stripped multipoint lock gearbox cannot be repaired, only replaced. The honest test is whether the failed part has moving pieces made of plastic. If it does and the part is over five years old, replacement is the cheaper fix. Call (432) 302-8761 and we’ll tell you which category your window or door falls into before you spend a dime.
Most part swaps are finished in 90 minutes to half a day once the right part is in hand. A single window balance or hinge set replacement is usually under two hours. A multipoint door lock assembly or a full insulated glass unit swap can run half a day because it requires careful alignment before the hardware is torqued down. If we need to order a specific Unilock part that isn’t on the truck, you’ll know the timeline before we leave the first visit. Call (432) 302-8761 and we’ll put a schedule on it.
We keep the most common Unilock-compatible parts on hand in Dallas, including balance systems, hinge sets, lock bodies, and weatherstripping for the series lines we see most often. If your Unilock window or door needs a less common part, we order directly and we handle the compatibility check, the freight, and the return if the manufacturer sends the wrong piece. Please don’t order parts yourself before calling us at (432) 302-8761; we’ve had to remove brand-new parts a homeowner bought from an online store that listed them as “universal” and weren’t.
Written by Isaac Pruett, Owner, Mason Remodeling Co Dallas at Mason Remodeling Co Dallas, serving Dallas and nearby areas.
