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Wellborn Home Additions & ADU: The Woodland Hills Owner’s Guide
Adding onto a Wellborn-equipped home in Woodland Hills typically costs between $45,000 and $130,000 depending on square footage, foundation work, and whether you’re building up or out. ADU construction runs $90,000 to $220,000 when permitted as a separate dwelling unit. We stock Wellborn-compatible cabinetry components for these projects and can usually start framing within two to three weeks of permit approval, not six months.
Most homeowners call us after they’ve lived with a cramped floor plan for years and finally hit the point where the kitchen can’t hold the family, or an aging parent needs to be closer. Sometimes the trigger is simpler: an existing Wellborn cabinet line was discontinued, a wall has to move, and now the cabinetry that’s left no longer matches what’s being installed. That’s a parts-and-layout problem, and it’s one we handle weekly in this part of the Valley.
Which Wellborn Models This Applies To
Wellborn builds several cabinet lines that show up constantly in Woodland Hills homes: Estate, Premier, and Select series are the three we see most often in additions and ADU projects from the last fifteen years. Each line uses different door profile specs and hinge boring patterns, so a drawer front from a Select line won’t always match an Estate cabinet box, even if the wood species and stain name are identical.
The compatibility gotcha we run into: Wellborn changed their hinge cup depth on several door styles around 2018, so matching a pre-2018 door with a new cabinet box requires a conversion plate or a different hinge entirely. We check the stamp on the inside of the cabinet frame and measure the bore before ordering anything. For OEM Wellborn parts, lead times through their dealer network in California run three to six weeks. Quality aftermarket equivalents from KraftMaid’s commercial line or custom local millwork often arrive in half that time and match within an eighth of an inch, which is invisible once installed. Ask to see samples side by side before you decide; we carry both on the truck.
Styles & brands we work with
Signs Your Wellborn Home Additions & ADU Is Failing
- Drawer fronts pull loose from the box – Southern California’s dry season contracts the maple and birch Wellborn uses, and glue joints eventually fail. This is the number one issue we see in Woodland Hills homes over twelve years old.
- Cabinet doors sag or won’t stay closed – Hinge screws strip out of the particleboard sides on lower Wellborn lines. It’s a material limitation, not a user error, and it accelerates once the humidity swings between summer dry heat and winter rain.
- Thermofoil or laminate edges peel – Heat from a rangetop or a south-facing window in a Woodland Hills kitchen causes the adhesive to break down before the cabinet itself fails.
- Soft-close mechanisms stop catching – The damping cylinders wear out unevenly. One drawer slams, the one next to it still whispers. Replacement dampers are inexpensive; the labor to reach them is not.
- Stain color mismatches between old and new sections – UV exposure changes stain tone over time, so an addition built with matching Wellborn cabinets can look off by two shades within five years if the room gets direct light from a Ventura Boulevard-facing window.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
A full home addition in Woodland Hills runs $45,000 to $130,000 depending on whether you’re adding a bedroom, expanding a kitchen, or building a second story. ADU projects land between $90,000 and $220,000 because they include separate utility connections, a kitchenette or full kitchen, and their own bathroom. Garage conversions run $30,000 to $80,000 when the slab and framing are sound.
Every quote we write includes line items for demolition, framing, electrical, plumbing, drywall, Wellborn cabinet installation or refacing, countertops, and finish work. You’ll see the cabinet line, hardware, and labor split out, so you know exactly what the parts cost versus the hands installing them. All work carries our written guarantee for 365 days from the completion date. If a drawer slide fails or a seam opens in that first year, we come back and fix it at no charge.
DIY or Call Us?
You can check a few things yourself. Look inside the cabinet frame for a Wellborn stamp with the model code. Measure the door width and height, the hinge cup diameter, and the gap between the drawer face and the frame. Take photos with your phone next to a tape measure. That saves our estimator a trip and speeds up your quote.
What you should not try alone: removing load-bearing walls to rework cabinet layouts for an addition. That’s structural framing work, and in Los Angeles County you’re looking at permits, shear wall requirements, and engineer-stamped plans. We pull permits and handle inspections on every addition and ADU we build in Woodland Hills. If you’re just replacing a few Wellborn door fronts and hinges, that’s a weekend job for a careful homeowner. If the wall has to move, call us at (831) 290-6866 before you open anything up.
FAQs
Most Wellborn cabinets in this climate last 15 to 25 years before hinges, drawer slides, or thermofoil surfaces fail. The box frames often outlast the moving parts by a decade, which is why repairs make sense more often than full replacement.
Yes, in most cases. We reface existing Wellborn boxes, replace worn hinges and dampers, and match new cabinetry to existing finishes with custom-tinted stains. If the boxes are water-damaged or the frames are pulling apart, replacement is the honest answer. Call (831) 290-6866 and we’ll tell you which one you’re looking at.
Permitting through Los Angeles Department of Building and Safety typically takes two to six months depending on your hillside zone or set back requirements. Once permits clear, construction runs three to eight months for a ground-floor addition and six to twelve for a full ADU.
We keep common Wellborn hinges, drawer slides, and soft-close dampers on the truck, along with KraftMaid and Silestone samples for matching. Full cabinet boxes and door fronts are ordered per project, usually arriving in two to four weeks through our supplier network.
Tell me what you need done. I’ll tell you what it takes and what it costs. Then we get to work.
For a free, written estimate on your Woodland Hills home addition or ADU, call (831) 290-6866. A live person answers, day or night, and we’ll schedule a time that works for you.
Written by Isaac Pruett, Owner, Mason Remodeling Co – Woodland Hills, CA at Mason Remodeling Co Woodland Hills, serving Woodland Hills and nearby areas.
