Mighty Buildings Home Additions & ADU Nationwide

Mighty Buildings Home Additions & ADU: The Fort Lauderdale Owner’s Guide

If you own a Mighty Buildings home addition or ADU in Fort Lauderdale and a panel, connector, or structural component has failed, we install and service Mighty Buildings-compatible home additions and ADUs, with typical installed project costs running $45,000 – $130,000 depending on size, site prep, and component scope. Most owners discover a problem the same way: a hairline crack along a panel seam after a storm, a door that suddenly binds in its frame, or a soft spot near a window flashing that wasn’t there six months ago. Mighty Buildings uses a panelized composite system, not conventional stick framing, which means the failure points and the repair approach are different from what most Fort Lauderdale contractors are used to seeing.

Call (754) 551-2922

Trevor Nash has spent the better part of two decades running crews across South Florida, and he’ll tell you the same thing he tells every Mighty Buildings owner who calls: the panel system itself is solid, but the connections, flashings, and penetrations are where Florida’s humidity and storm cycles do their work. If you’re reading this because something on your Mighty Buildings addition or ADU isn’t behaving the way it should, here’s exactly what you need to know about compatibility, symptoms, pricing, and whether you should touch it yourself.

Key takeaways:

• We install and service Mighty Buildings-compatible home additions and ADUs in Fort Lauderdale, with typical project ranges of $45,000 – $130,000.
• Mighty Buildings uses factory-fabricated composite panels, which means off-the-shelf lumber from a big-box store won’t match the original assembly.
• We’re an independent service provider, not affiliated with Mighty Buildings, and we give you a written price and a written guarantee before work starts.

Signs Your Mighty Buildings Home Additions & ADU Is Failing

• Cracking along panel seams or corners. In Fort Lauderdale’s humidity and storm cycles, thermal expansion and contraction puts real stress on panel joints. A hairline crack that appears and grows over successive seasons usually means the movement joint was sealed too rigidly or the fasteners are pulling through the panel edge.
• Doors or windows that bind or won’t latch. Mighty Buildings panels are structural, and when a panel shifts or settles even a few millimeters, the openings go out of square. If a door that closed fine last year now drags against the frame, the issue is rarely the door itself – it’s what the opening is attached to.
• Soft spots or bubbling paint near windows, corners, or rooflines. This is the classic water-intrusion signature. The panel face may look intact while moisture has worked its way behind the flashing and into the panel edge. In South Florida, that moisture never dries out on its own.
• Visible rust staining or fastener pop below roofline connections. The composite panel won’t rust, but the steel connectors and fasteners will if the protective coating has been compromised or the wrong fastener was used during the original install. Rust trails are the tell.
• Interior drywall cracks or floor movement inside the addition. A Mighty Buildings ADU sits on its own foundation system, and differential settling between the main home and the addition shows up as diagonal wall cracks or a floor that feels springy. This is a structural flag, not a cosmetic one.

Replacement Cost & What’s Included

For a Mighty Buildings home addition or ADU in Fort Lauderdale, complete project work typically runs $45,000 – $130,000. The range is driven by square footage, whether you’re replacing structural panels versus finish components, site access, and whether the original installation left usable shop drawings. Full ADU construction in Fort Lauderdale runs higher, typically $90,000 – $220,000, reflecting the foundation, utility connections, and permitting scope. Garage conversions that incorporate Mighty Buildings panels land in the $30,000 – $80,000 range.

Every quote from Penhallow Remodeling Fort Lauderdale is a written number before work starts. Not a ballpark, not a verbal range – a written price you can hold us to. That number includes parts, labor, disposal of the failed components, and the 365-Day Done Right Promise: if the work fails inside the guarantee period, we come back and fix it at no charge. No re-inspection fee, no service call charge. That’s the Kingswell standard we’ve operated under since 2004, and it applies to every Mighty Buildings repair we do in Fort Lauderdale.

DIY or Call Us?

Some things you can safely check yourself: visible cracking at panel seams, rust staining around fasteners, and doors that have begun to bind. Photograph what you find, note whether it’s changed in the last month, and keep an eye on it. What you shouldn’t do is open a panel, pull fasteners, or attempt to reseal a roofline connection. Mighty Buildings panels are structural, which means they’re carrying load. Removing a fastener or cutting into a panel without knowing the load path can create a failure where none existed. The same applies to anything involving the roof or upper wall sections – Fort Lauderdale’s wind loads make that work a professional’s job, full stop.

If the problem is beyond a quick visual check or you want a straight answer on whether it’s a repair or a replacement, call (754) 551-2922. We’ll talk through what you’re seeing, give you an honest read on the likely scope, and set a real arrival window if a site visit makes sense.