Wellborn Home Additions & ADU Nationwide

Wellborn Home Additions & ADU: The Miami Owner’s Guide

Wellborn cabinet systems in Miami home additions and ADUs typically run $53,100-$153,400 installed, depending on whether you’re building a 400-square-foot studio ADU in Little Havana or a full second-story addition in Coral Gables. We stock and install Wellborn-compatible cabinet configurations, hardware, and trim packages across all current series, with most replacement components available within 48 hours. If your Wellborn soft-close hinges are clicking, drawer glides are binding, or cabinet boxes are swelling from humidity, the fix is usually a same-day parts swap rather than a full replacement.

Call (786) 321-4970

Most Miami owners discover a Wellborn part is failing when a drawer won’t stay on track after the third adjustment, or when cabinet doors in a converted garage ADU start sagging despite the hinges being tight. The salt air and seasonal humidity spikes here accelerate wear on hardware that was spec’d for drier climates.

Which Wellborn Models This Applies To

We work with Wellborn’s full residential lineup: the Aspire series (thermofoil and painted finishes), the Premier series (all-wood construction with plywood boxes), and the Estate series (custom-grade with solid-wood dovetail drawers). The part you need depends on when your cabinets were manufactured. Pre-2018 Premier cabinets used Blumotion clip-top hinges with a 35mm cup pattern; post-2018 production shifted to a modified plate geometry that looks identical but mounts 2mm offset. If you’re swapping hinge plates in a Miami Shores ADU without checking the production stamp inside the door, you’ll end up with a door that closes but never seals flush.

To identify your exact part, look for the white spec label inside the sink base or on the hinge cup itself. The series code (AS, PR, or ES) plus a six-digit date stamp tells us whether to order OEM from Wellborn’s Alabama factory or source an equivalent from our hardware supplier. For most Miami jobs, we use OEM hinge sets and drawer boxes but switch to heavy-duty aftermarket glides rated for 100-pound dynamic load, the standard spec in our ADU builds from Pinecrest to Wynwood. The aftermarket glides cost 15% less and carry the same lifetime residential warranty.

Signs Your Wellborn Home Additions & ADU Is Failing

• Drawer fronts pulling away from the box. The particleboard substrate in older Aspire units swells when humidity exceeds 70% for extended periods, which in Miami happens roughly eight months of the year. The glue line fails, and the front separates even if the glide hardware is intact. We see this most in ground-level ADUs near the water table where dehumidifiers weren’t spec’d.
• Soft-close hinges losing their damping. The hydraulic cylinder inside a Blumotion hinge has a finite cycle count, typically 80,000-100,000 openings. In a busy Miami kitchen addition used by a multi-generational family, that’s five to seven years. Once the oil seal degrades, the door slams the last two inches.
• Adjustable shelf pins wallowing out. Wellborn’s 5mm shelf pin holes in MDF gables enlarge if shelves are overloaded with small appliances. The pin still holds, but the shelf tilts and items slide. This is cosmetic until the hole splits the gable edge, then the cabinet box needs rebuilding.
• Finish bubbling near the sink or cooktop. Thermofoil wraps on Aspire cabinets delaminate when steam hits a chip or seam. The PVC lifts, traps moisture, and the MDF underneath swells. In Miami’s climate, a failed exhaust fan turns this from a blemish into a replacement in about eighteen months.
• Base cabinet toe-kick rotting. The composite toe-kick on Wellborn base cabinets sits directly on tile or concrete. In flood-prone Miami neighborhoods like Shorecrest or parts of Allapattah, minor seepage wicks up and degrades the material. We replace with composite-resistant PVC toe-kicks on every first-floor and ADU install now.

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Replacement Cost & What’s Included

These numbers are installed prices with labor, not parts-only. A full home addition or ADU build in Miami runs $53,100-$153,400 depending on square footage, structural work, and whether you’re tying into existing HVAC. What drives the range: foundation type (slab-on-grade vs. elevated for flood zones), impact-rated window requirements per Miami-Dade code, and whether the ADU needs a full kitchen or just a kitchenette. Under Clause 1 of The Haven Standard, you get the written price before anyone picks up a tool. No change proceeds without a signed change order. That’s how we’ve kept 4,000-plus projects within a few percent of the agreed number since 2007.

DIY or Call Us?

There’s a clear line between what a homeowner can handle and what turns into a bigger problem. Swapping a hinge or adjusting a drawer front with a Phillips head and patience? That’s reasonable. But rebuilding a drawer box square, or replacing a gable without disturbing the countertop and adjacent cabinets, requires the cabinet to come apart in sequence. We’ve been called to Miami jobs where a homeowner’s well-intentioned hinge swap stripped the screw holes in the door, turning a $110 repair into a $340 door replacement.

The other factor is documentation. If your Wellborn cabinets are part of a permitted ADU or addition, any structural modification to the kitchen layout may require plan amendment. We handle that paperwork as part of the scope. Call (786) 321-4970 and we’ll walk through what you’re seeing. If it’s a five-minute fix, we’ll tell you. If it’s not, we’ll put the number in writing before we start.

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