Wellborn Home Additions & ADU Nationwide

Wellborn Home Additions & ADU: The Sherman Oaks Owner’s Guide

Wellborn cabinet systems in Sherman Oaks home additions and ADUs typically run $45,000-$130,000 installed, depending on whether you’re building out a master suite addition or a standalone accessory dwelling unit. We stock Wellborn-compatible hardware, drawer systems, and door fronts for same-day replacement on most Aspen, Premier, and Estate series units. Most Sherman Oaks homeowners discover a failing part when drawer glides stick in the humid weeks after winter rain, or when a door front gaps on a cabinet box that shifted during the 2019 seismic retrofit cycle.

Call (213) 221-0788

Which Wellborn Models This Applies To

Wellborn organizes its cabinet lines into three series, and the hardware differs materially between them. The Aspen series uses 5/8-inch-thick drawer boxes with undermount soft-close glides rated to 75 pounds. The Premier series steps up to 3/4-inch plywood boxes and 100-pound glides. The Estate series, which we see most often in Sherman Oaks ADUs where owners want full-overlay inset doors, uses face-frame construction with concealed Blum hinge systems and 125-pound-rated tandem glides.

To identify your part, open the cabinet and look for the white Wellborn label inside the door frame, usually upper right. It lists the plant code (Ashland, Alabama, for current production), the series letter, and the box dimensions in 1/16-inch increments. The glide itself carries a separate part number stamped on the metal rail. OEM Wellborn glides carry a two-year manufacturer warranty; we also source equivalent KV and Blum hardware that meets the same cycle-life spec, which we warranty under our 365-Day Done Right Promise. Rowan Construction Group Sherman Oaks is an independent service provider, not affiliated with Wellborn Cabinet, Inc.

The compatibility gotcha in Sherman Oaks: many 1980s-2000s additions used Wellborn’s older “Classic” line, which had a 32mm hole pattern that doesn’t match current hinge plates. If your cabinets predate 2010, bring the old plate in or text us a photo before we stock the truck.

Signs Your Wellborn Home Additions & ADU Is Failing

• Drawer sticks or drops when loaded. The glide ball bearings have worn through the zinc coating, which happens faster in Sherman Oaks when coastal moisture meets the Valley heat cycle. The drawer box then racks, stressing the front joint.
• Door front rubs the frame or won’t stay closed. Blum or Grass hinges lose tension after 80,000-100,000 cycles, roughly 7-10 years of daily kitchen use. In ADU rentals, that can compress to 4-5 years.
• Soft-close mechanism slams instead of damping. The hydraulic cylinder inside the glide head has leaked silicone fluid. This is a sealed unit; repair means replacement.
• Adjustable shelf peg holes wallow out. The 5mm metal peg has worked against the particleboard shelf standard until the hole is oval. We replace the standard with a steel-reinforced version.
• Finish peels at door edges. Not a hardware failure, but a sign the substrate absorbed moisture during a past leak. The door front is delaminating and will eventually warp the hinge alignment.

Before

After

Replacement Cost & What’s Included

What drives the range: material grade (OEM Wellborn vs. equivalent aftermarket), whether the cabinet box itself needs re-squaring after years of racking, and access. A standard base cabinet in a Sherman Oaks addition is straightforward; a corner lazy Susan in a compact ADU kitchen requires pulling the entire unit. Under Clause 1 of the Haven Standard, we deliver a written line-item quote before any work starts. The price you sign is the price you pay; no change proceeds without a signed change order. Our workmanship on hardware replacement carries the 365-Day Done Right Promise, backed by a terms page, not an asterisk.

DIY or Call Us?

There’s safe checking, and then there’s the point where a homeowner in Sherman Oaks usually stops.

What you can do: confirm the part number from the Wellborn label, measure the drawer box width to the 1/16 inch, and test whether the glide failure is in the mechanism or simply a loose screw at the back bracket. A Phillips head and a flashlight will answer that.

Where DIY goes wrong: removing a loaded drawer from tandem undermount glides without releasing the locking levers bends the rail. Reinstalling a Blum hinge plate without the 3mm spacing jig leaves the door front crooked by a visible margin. And if the cabinet box has racked, new hardware on a twisted carcase fails again in months. We’ve rebuilt enough “I watched a video” jobs in Sherman Oaks to know the pattern. Call (213) 221-0788 and we’ll stock the truck with the right part, measured against your actual cabinet, not a guess from a model year.

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