Unilock Windows & Doors Nationwide

Unilock Windows & Doors: The Sherman Oaks Owner’s Guide

We stock and install Unilock-compatible windows and doors in Sherman Oaks, with typical installed pricing running $4,500-$15,000 for full window replacement and $8,000-$25,000 for impact-rated installations. Most Unilock hardware, sash balances, and weatherstrip components are on our trucks or available next-day through our supplier network. Homeowners usually discover a problem when a window won’t stay open, a door drags on the threshold, or they feel a draft along the frame that caulk won’t fix.

Call (213) 221-0788

Grant Rowan learned to read structural drawings at Los Angeles Valley College before he ever swung a hammer for pay, and that discipline shows in how we spec Unilock parts. Measure twice, write it down, then build it.

Which Unilock Models This Applies To

Unilock manufactures windows and doors across several series lines, and the part you need depends on the generation. Look for the white adhesive label in the top track of a sliding window or the hinge-side jamb of a hinged door. The label lists the series (commonly U-100, U-200, or U-300 for vinyl windows, and UD-500 for entry door systems), the nominal size, and a date code in MM/YY format.

Parts compatibility breaks down by frame material. U-100 and U-200 series share sash balance assemblies and tilt latches; U-300 uses a wider 3-inch frame depth with proprietary interlock gaskets that don’t interchange. For door hardware, UD-500 multipoint locks from 2018 onward use a 45mm backset, while earlier production ran 40mm. We stock both OEM Unilock components and quality aftermarket equivalents from Truth Hardware and Caldwell. The aftermarket route saves 15-25% on hardware-only jobs without sacrificing function, though we default to OEM for multipoint lock bodies because the strike alignment tolerances are tighter than generic substitutes can reliably hit.

Signs Your Unilock Windows & Doors Is Failing

• Window won’t stay open or slams shut. The coil sash balance has lost tension, usually from a broken spring or worn cam. In Sherman Oaks, we see this accelerate when coastal moisture from the west meets Valley heat cycling, corroding the balance housing faster than inland climates.
• Door sticks or drags at the threshold. The adjustable sill cap has compressed or the hinge jamb has settled. On Unilock entry doors with composite sills, the PVC cap can warp after 6-8 years of direct southern exposure.
• Visible gap between sash and frame, or light bleed around the perimeter. The bulb weatherstrip has flattened or the pile fin seal has worn away. Unilock’s fin-seal design traps grit from Santa Ana wind events, which acts like sandpaper against the pile.
• Condensation between glass panes. The insulated glass unit (IGU) seal has failed. This is not a part you replace individually; the entire IGU gets fabricated to the exact sight-line dimensions stamped on the spacer bar.
• Multipoint lock handle spins or doesn’t engage. The gearbox inside the lock body has stripped, often from forcing the handle when the door is misaligned. Continuing to operate it can damage the keeps in the frame, turning a $180 hardware fix into a $600 jamb repair.

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Replacement Cost & What’s Included

What drives the range: unit size, floor level (third-story carries ladder/setup time), and whether the original installation used proper shimming or shortcut foam. Under Clause 1 of the Haven Standard, your written price includes all of this before work starts. No change proceeds without a signed change order. The 365-Day Done Right Promise covers the installation and workmanship; manufacturer defects are handled through the OEM warranty channel we document for you.

DIY or Call Us?

Here’s where honesty saves everyone time. A homeowner can safely check the label location, operate the window to confirm the symptom, and photograph the failure for our review. What we don’t recommend: removing a sash with a failed balance (the sash can drop and shatter), adjusting multipoint strike plates (misalignment compounds quickly), or cutting out an IGU (the vacuum seal requires factory equipment, and tempered glass can explode if scored wrong).

We carry Unilock-compatible balances, locks, and weatherstrip on our Sherman Oaks trucks. Call (213) 221-0788 and we’ll confirm the part match from your photos before scheduling. The estimate is free, the price is written, and the photo record of what we find goes to you before we leave.

FAQs