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Unilock Windows & Doors: The Austin Owner’s Guide
We carry Unilock-compatible window and door components in Austin and can typically source what your existing unit needs within a few business days. Installed pricing for Unilock window and door replacements in Austin runs between $4,500 and $15,000, though individual part swaps like a failed lock, seal, or weatherstrip usually land well below that. Most Austin homeowners discover a problem the way you probably did: a window that won’t latch, a door that drags across the threshold, or a draft that wasn’t there last winter.
We’re an independent Austin contractor, not a Unilock dealer or affiliate. That means we can be straight with you about what’s worth fixing, what’s worth replacing, and what a Unilock part should cost without padding the number because we’re selling the brand.
Which Unilock Models This Applies To
If your home has Unilock windows and doors, you’re dealing with one of their vinyl or composite series, most commonly installed in Austin subdivisions built between the mid-1990s and the early 2010s. The part you need is tied to the specific series, and the easiest way to confirm it is to open the sash or door and look for the small white tag on the frame edge. That tag lists the series name, sometimes the glass date, and the hardware code. If the tag’s gone (which happens after a decade of Texas sun), we match the part by measuring the existing component and checking the profile cross-section.
Here’s the compatibility gotcha: Unilock changed its hinge and roller hardware three times across its production runs. A sash pivot from a Series 2000 window will not fit a Series 3000, even though the windows look nearly identical from the outside. We keep a few of the common older-generation parts on hand for jobs where the window just needs a hardware refresh, but if we don’t have it, we get the exact match ordered before we touch the frame. OEM parts are available for most Unilock models still, though lead times run longer than quality aftermarket equivalents that meet the same spec. We’ll price both and let you choose.
Styles & brands we work with
Signs Your Unilock Windows & Doors Is Failing
Here’s what we see most when an Austin homeowner calls us about a Unilock window or door that’s gone wrong:
- The sash drops when you open it. This is the balance spring losing tension, and it’s the most common Unilock failure we see in Austin after about 12 to 15 years. The window still seals, but it won’t hold position, and the spring can snap completely without warning.
- The door scrapes the frame or won’t clear the threshold. Austin’s clay soil expands and contracts with every rain-drought cycle, and doors settle over time. The Unilock slab itself is rarely the problem; it’s usually the hinge screws pulling loose from the jamb or the threshold shims compressing.
- Cold air leaks around the edges in January. Unilock weatherstripping hardens and shrinks in Austin’s dry heat, and once a gap opens at the meeting rail or the bottom sweep, you’ll feel it on the first cold front. The fix is usually a new seal, not a whole window.
- The lock won’t throw or the handle spins loosely. The multi-point lock mechanism on Unilock patio doors has a known weak point where the gear strip jumps its track. If your door handle turns but nothing engages, that’s the culprit.
- Condensation you can’t wipe away between the glass panes. The insulating glass unit has lost its seal. In Austin’s heat, the desiccant inside the spacer gets overwhelmed and fogging follows. The fix is a new IG unit, not a whole new window.
See the difference
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AfterReplacement Cost & What’s Included
What you pay depends on whether we’re swapping a part or replacing the whole unit. Individual hardware and seal replacement in Austin typically runs between $180 and $600 installed, including the part and our labor. A full window replacement falls in the $4,500 to $15,000 range depending on how many units, the series, and whether you want the same Unilock product or an equivalent-quality replacement. Door replacements land in a similar range, with patio doors leaning toward the upper end because of the glass package.
Every quote we give is written, and the number you approve before we start is the number on the invoice. That’s how we’ve done it since I started this company, and it’s the only way we’ll ever work. You’ll get a line-item breakdown so you can see exactly what the part costs and exactly what the labor costs. No “miscellaneous materials” line hiding the real math.
DIY or Call Us?
Some things you can handle safely. Replacing a worn door sweep, tightening hinge screws, or cleaning the track are all fair game, and if you call us we’ll tell you how to do those yourself over the phone. But when you’re dealing with the balance springs inside a Unilock window, stop. Those springs are under tension, and they release fast when you remove the retainer. A snapped spring or a flying component will hurt you. We’ve repaired the aftermath of enough DIY attempts to say this plainly: let a tech with the right training and the right retainer tool handle anything involving the spring system.
For everything else, we’re a phone call away at (325) 225-5429. Tell me what you need, I’ll tell you what it costs, and we’ll go from there.
FAQs
In Austin’s heat and UV exposure, Unilock windows typically need hardware or seal service around year 12 to 15, and full replacement between 20 and 25 years. Doors can last longer if the threshold stays dry and the hardware is lubricated, but the weatherstripping usually needs attention every 5 to 7 years. Call (325) 225-5429 and we’ll assess what yours needs.
Yes, and often the repair is the right call. Hardware, weatherstripping, and failed glass units can usually be swapped for a fraction of the cost of a full replacement in Austin. We repair what’s repairable, and we’ll tell you honestly when replacement is the smarter long-term money. Call (325) 225-5429 for a repair quote.
Most hardware and seal replacements take under two hours. A glass unit swap runs half a day because the new IG unit has to set and seal properly before the sash goes back. An entire window or door removal and reinstallation typically takes a full day for a couple of units. Call (325) 225-5429 and we’ll give you a real arrival window.
We keep common Unilock hardware and weatherstripping on the truck for quick fixes. For less common parts, including older series hardware and custom glass packs, we order the exact match and schedule the install once it lands in Austin. Call (325) 225-5429 and we’ll check what we have before we roll out.
And while we’re talking parts, we also source components for KraftMaid cabinetry, Cambria and Silestone countertops for our kitchen and bath clients in Austin. If you’ve got one of those in your home, we can probably help there too. Call (325) 225-5429 for a free estimate on any of it.
Written by Trevor Nash, Owner, Penhallow Remodeling Austin at Penhallow Remodeling Austin, serving Austin and nearby areas.
