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Wellborn Home Additions & ADU: The Long Beach Owner’s Guide
Wellborn cabinet installations in Long Beach home additions and ADUs typically run $45,000-$130,000 for the full project, with Wellborn cabinetry itself representing $8,000-$22,000 of that total depending on series and linear footage. We stock Wellborn-compatible hardware, drawer systems, and door fronts for same-day replacement on most Heritage and Estate series units. Most Long Beach owners discover a failing part when soft-close drawers start slamming, hinge plates loosen in the humid coastal air, or adjustable shelf pins wallow out in the particleboard core after five to seven years of use.
Which Wellborn Models This Applies To
Wellborn organizes its residential lines into three tiers, and the parts differ materially between them. The Heritage Series uses 3/4-inch plywood box construction with hardwood face frames; parts here are heavier-duty and cross-compatible with most hardware from 2015 forward. The Estate Series upgrades to full-overlay frames with Blumotion undermount slides, and the slide mounting patterns are proprietary to Wellborn’s drilling specs, not generic 32mm system spacing. The Premier Series, their frameless line, uses entirely different hinge boring and requires 35mm cup hinges with the Wellborn-specific 3mm tab offset.
To identify your series, check the inside edge of the door or the sticker on the drawer box underside. The date code matters: pre-2019 Heritage units used a 5/8-inch side-wall thickness that changed to 3/4 inch, so replacement drawer boxes ordered to old measurements will rack and bind. We carry both generations on our Long Beach truck. OEM Wellborn parts ship from Ashland, Alabama in three to five business days; for hardware failures, we stock Blum and Salice equivalents that meet or exceed OEM spec and install same-day. For door fronts and finished end panels, OEM color-matching is the only path that blends.
Signs Your Wellborn Home Additions & ADU Is Failing

- Drawer fronts sag or tilt when loaded. The undermount slide bracket has stripped its screw hold in the particleboard side wall, or the polymer bracket itself has fatigued. In Long Beach’s marine layer environment, the moisture cycling accelerates this; we see it most in ground-floor ADU kitchens where slab-on-grade construction traps humidity.
- Soft-close mechanism no longer dampens. The Blumotion piston has leaked its hydraulic fluid or the nylon gear has worn flat. This is a replaceable cartridge on most slides, not a whole-slide replacement, but the part number varies by slide generation.
- Door hinges click or pop when opened. The 35mm cup has wallowed in the MDF door substrate, or the hinge arm’s spring steel has work-hardened and cracked. Wellborn’s hardwood doors resist this better than their MDF painted doors, which we see fail first in east-facing Long Beach units that take morning sun and afternoon shade stress.
- Adjustable shelf pins fall out or tilt. The 5mm bore in the particleboard has crushed or the plastic pin has sheared its retaining barb. This is minor until a loaded shelf drops; we replace with metal pin sleeves that grip permanently.
- Finished surfaces bubble or delaminate near sinks. The thermofoil or conversion varnish has failed at the seam where moisture wicks into the substrate. Wellborn’s standard finish warranty covers this for five years; their upgraded ArmorGuard finish extends to ten. We document the failure pattern and handle the warranty submission if the unit qualifies.
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AfterReplacement Cost & What’s Included
| Component | Parts + Labor Range | Timeline |
|---|---|---|
| Drawer slide pair (Blum undermount) | $180-$340 | Same day |
| Soft-close piston cartridge | $45-$85 | Same day |
| Hinge replacement (per door) | $35-$65 | Same day |
| Drawer box rebuild ( Heritage 3/4″ ) | $220-$380 | 2-3 days |
| Door front replacement (OEM match) | $280-$520 | 5-7 days |
| Full cabinet replacement (single base) | $1,200-$2,400 | 1-2 weeks |
These are installed prices for Long Beach, with our standard one-year workmanship warranty and the 365-Day Done Right Promise backing every repair. What drives the range: drawer box depth (24-inch vs. 30-inch), finish complexity (glazed and distressed add 20-30 percent), and whether the original installation used proper blocking or shortcuts that we correct. Under Clause 1 of the Haven Standard, you get the written price before we start; no change proceeds without a signed change order. The photo record of your existing condition, the scope, and the finished work are yours to keep.
DIY or Call Us?

What you can safely check: confirm the series from the door sticker, measure drawer box width and depth, and photograph the failed part from multiple angles. What goes wrong fast: removing a loaded drawer box without supporting the slide arms lets them snap back into the cabinet at speed, and the sharp steel will gouge the face frame. The Blumotion cartridges look interchangeable but come in 15kg, 30kg, and 50kg weight ratings; the wrong one fails in months. Hinge adjustment on a full-overlay Estate door affects reveal gaps on three adjacent doors simultaneously, and most DIY attempts leave a cascade of misalignment. We carry the full weight-rated inventory and the jigs to re-drill stripped holes with hardwood dowel inserts that outlast the original particleboard. Call (424) 567-7009 to schedule your free estimate.
FAQs
Blum undermount slides in Wellborn cabinets typically last 12-15 years in Long Beach’s moderate climate, though ground-floor ADUs with poor slab moisture management see 7-10 year lifespans. The marine layer’s salt air does not directly corrode the slides, but humidity cycling softens particleboard substrates and the screw holds fail first. Call (424) 567-7009 for an exact quote on replacement - estimates are free.
No. The Blumotion piston is a sealed hydraulic unit with no serviceable internals; replacement is the only fix. The good news is the cartridge snaps out without removing the slide from the cabinet, so labor stays minimal. Call (424) 567-7009 for an exact quote - estimates are free.
Most single drawer box replacements in Long Beach take 45-90 minutes on site if we have the spec; building a custom hardwood replacement to match Heritage plywood construction adds one to two days in our shop. We schedule a morning arrival, remove the failed unit, and return the following day with the finished replacement. Call (424) 567-7009 for an exact quote - estimates are free.
We stock Blum and Salice hardware equivalents that fit Wellborn drilling patterns, plus hardwood dowel inserts and metal shelf pin sleeves for same-day repair. OEM Wellborn door fronts, finished end panels, and matching drawer boxes ship from Alabama and require five to seven business days; we order these with tracking and schedule installation the day they arrive. Call (424) 567-7009 for an exact quote - estimates are free.
Rowan Construction Group Long Beach is an independent service provider and is not affiliated with Wellborn Cabinet, Inc. We also stock parts for KraftMaid, Cambria, and Silestone installations.
Grant Rowan puts it this way: measure twice, write it down, then build it. That discipline, learned in the trade programs at Los Angeles Trade-Technical College and hardened across fifteen-plus years of jobs from Belmont Shore to the port corridor, is what keeps our projects within a few percent of the written number we gave you on day one. The photo record, the signed change order, the flat price - these are not upgrades. They are the baseline.
Written by Grant Rowan, Owner, Rowan Construction Group Long Beach at Rowan Construction Group Long Beach, serving Long Beach and nearby areas.







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