Unilock Windows & Doors Nationwide

Unilock Windows & Doors: The San Diego Owner’s Guide

We stock and install Unilock-compatible windows and doors across San Diego, with most replacement projects running $5,310-$17,700 for full window replacement and hardware repairs typically quoted in the lower third of that range. Most Unilock hardware failures - multipoint locks, tilt-latch mechanisms, and weatherstrip seals - can be diagnosed and parts-ordered same-day if the series label is readable. Homeowners usually discover the problem when a window won’t lock flush, a door multipoint won’t throw all three bolts, or they feel a draft that wasn’t there last season.

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Which Unilock Models This Applies To

Unilock windows and doors sold in the Southern California market between roughly 2008 and 2018 typically carry series designations on the hinge side or top rail of the sash: look for a stamped or stickered code starting with “UL-” followed by a three-digit number. The UL-220 and UL-350 series are the most common we encounter in San Diego County, particularly in Mission Valley and Clairemont builds from that era. The UL-220 used a tilt-latch with a 2-3/8 inch hole spacing; the UL-350 shifted to 2-5/8 inch, and the latches are not interchangeable despite looking identical at a glance.

OEM Unilock parts are available through a limited distributor network with lead times of 10-14 business days. We source equivalent-grade hardware from Truth Hardware and Hoppe that meets the original shear-load specs - the difference is delivery speed, not durability. For multipoint locks, we verify backset (45mm vs. 55mm) and faceplate width (16mm vs. 20mm) before ordering; getting this wrong means the lock bolts miss the keepers entirely. If your label is worn, we measure on-site and cross-reference to the original Unilock spec sheet rather than guessing.

Signs Your Unilock Windows & Doors Is Failing

• The multipoint lock only throws one or two bolts instead of three. The gearbox inside the door edge has stripped a cog, usually from forcing the handle when the door is swollen or misaligned. The lock still feels like it works, but the top and bottom bolts aren’t engaging the frame keepers.
• Tilt windows fall out of the jamb when you release the latches. The tilt-latch spring has fatigued or the plastic housing has cracked at the stress riser. In San Diego’s UV exposure, the nylon composite degrades faster than the manufacturer rated it for inland climates.
• Visible daylight between the sash and frame when closed and locked. The bulb-style weatherstrip has compressed past recovery or the fin seal has torn at a corner. This shows up first on south and west exposures in San Diego, where thermal cycling is hardest.
• The handle spins freely or requires excessive force to lift. The spindle connecting handle to gearbox has bent, or the gearbox itself has cracked housing. Either way, continued operation will destroy the mating components.
• Condensation between glass panes that doesn’t clear. The insulated glass unit (IGU) seal has failed; the desiccant inside is saturated. This is a full sash or glass replacement, not a hardware fix, but Unilock IGUs from that era used a specific spacer-bar width that must be matched.

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Replacement Cost & What’s Included

Hardware-only repairs on Unilock windows and doors in San Diego typically fall between $470 and $2,125, depending on whether we’re replacing a single tilt-latch or a full multipoint lock system with re-alignment. Full window replacement runs $5,310-$17,700 per the current San Diego market, with the spread driven by size, floor level (hoist access), and whether the original flange is intact or water-damaged.

Every quote we write breaks out parts, labor, and any necessary trim or sealant separately - no lump-sum mystery. Under Clause 1 of the Haven Standard, that written price is fixed; if we find rot in the subsill once the unit is out, we stop, photograph it, and write a change order before proceeding. No surprises. The 365-Day Done Right Promise covers the installation and hardware function; glass and factory finishes carry the manufacturer’s term.

DIY or Call Us?

There’s a short list of checks that won’t make things worse: verify the lock keeps are aligned with the frame (loose screws, not a bad lock), clean debris from the track with a vacuum and dry brush, and confirm the weep holes at the sill aren’t blocked with stucco or paint. Beyond that, Unilock multipoint locks carry spring tension that can snap a spindle if disassembled without the gearbox clamped, and tilt-latch replacement requires supporting the sash weight while you work - a dropped sash on a second story is injury and liability both.

We carry common Unilock-compatible hardware on our San Diego trucks: tilt-latches for both 2-3/8 and 2-5/8 spacing, 45mm and 55mm multipoint gearboxes, and the bulb and fin weatherstrip profiles that match the original compression specs. Measure twice, document once, then we can talk price. If you want a written quote before anyone picks up a tool, call (858) 434-8926.

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