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American Standard Home Additions & ADU: The Fort Lauderdale Owner’s Guide
American Standard home additions and ADU construction in Fort Lauderdale typically runs $45,000 to $130,000 for a full addition, with detached ADUs falling between $90,000 and $220,000 depending on size, foundation work, and finish level. Most homeowners discover their addition or ADU project has gone sideways when a permit stalls, a foundation cracks in the humidity cycle, or a previous contractor’s framing starts pulling away from the main structure. If you’re reading this, you’re probably in one of two situations: you own an American Standard home and the addition you had built is failing, or you’re planning new construction and want the addition tied into your existing American Standard floorplan correctly the first time. Either way, we handle the full scope: plans, permits, foundation, framing, mechanicals, and finish work.
We’re an independent remodeling contractor in Fort Lauderdale. We’re not affiliated with American Standard, but we’ve built enough additions onto American Standard homes across Broward County to know how their floorplans, rooflines, and mechanical systems tie together.
Which American Standard Models This Applies To
American Standard doesn’t make a single home line the way a cabinet maker makes a cabinet line. The homes we work on in Fort Lauderdale fall into a few recognizable patterns: 1950s and 60s ranch houses with low-pitch roofs and concrete block walls, 1970s and 80s split-levels with wood-frame upper floors, and the occasional CBS (concrete block and stucco) build that’s common east of I-95 in neighborhoods like Victoria Park and Sailboat Bend. Each of these handles an addition differently.
The compatibility question that matters for additions and ADUs isn’t a model number. It’s the roof tie-in, the foundation type, and how the mechanical systems in the main house get extended or branched. A block house in Croissant Park needs an engineer to verify the existing lintels before you cut a new opening for a connecting hallway. A wood-frame house in Riverland needs hurricane strapping upgrades that an inspector will flag if they’re missing. We measure, document, and pull the permit before any wall comes out.
For materials, when an American Standard home has specific trim profiles, window styles, or door casing dimensions, we match them rather than swapping in something close. If you’re adding square footage, the transition between old and new should be invisible from the curb and from inside the house.
Styles & brands we work with
Signs Your American Standard Home Addition or ADU Is Failing
- Cracks at the tie-in point where the addition meets the original structure. In Fort Lauderdale, the ground expands and contracts with seasonal moisture, and a slab or footing that wasn’t engineered for our soil settles at a different rate than the main house. The crack isn’t cosmetic; it’s the two structures moving independently, and it will only widen if the cause isn’t addressed.
- Doors and windows in the addition that stick or won’t latch. This is settlement, not humidity. When a header or sill plate shifts, the opening goes out of square. We see it most often in additions built on a monolith slab that wasn’t tied to the existing foundation with rebar.
- Water staining on the ceiling where the addition’s roof meets the main roofline. The valley where two roofs intersect is the most common leak point in a Florida addition. A single missing piece of flashing or an improperly lapped underlayment will let water in during the first good summer storm, and by the time the stain shows on the ceiling, the sheathing underneath has been wet for weeks.
- A HVAC system that can’t keep the addition comfortable. If the previous contractor just tapped into the existing ductwork without running a proper load calculation, you’ll get a room that’s freezing in the morning and muggy by 3 p.m. Fort Lauderdale humidity punishes undersized ductwork hard.
- Electrical tripping when you run the microwave and the window AC at the same time. An addition that was wired off a single existing circuit without its own subpanel is underpowered and, in some cases, a code violation. Broward County inspectors look for this on resale, and so do home inspectors.
See the difference
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AfterReplacement Cost & What’s Included
A full home addition in Fort Lauderdale runs $45,000 to $130,000. A detached ADU runs $90,000 to $220,000. What drives the range? Square footage is the biggest lever, but the foundation type matters almost as much. A monolithic slab on grade is cheaper than a stem-wall foundation. Roof complexity changes the number too: a simple shed roof that ties into the existing eave costs less than a hip roof that has to wrap around the original footprint. Then there’s the finish level. A bedroom addition with a closet and two windows is a completely different project from a primary suite with a wet room, a walk-in closet, and French doors to the patio.
Every project we quote includes the full scope in writing: engineering, permit fees, demolition, framing, roofing, stucco or siding to match, drywall, trim, paint, electrical with its own subpanel, HVAC extension or a dedicated mini-split, and flooring. The price on day one is the price on the final invoice. If we open a wall and find something unexpected, we show you a written change order before we touch it. And every addition carries our 365-Day Done Right Promise: if anything fails inside the first year, we come back and fix it at no charge.
DIY or Call Us?
There are parts of a home addition you can check yourself. Walk the perimeter of the tie-in point and look for hairline cracks. Check that the doors in the addition still close square. Go into the attic on a dry day and look for daylight at the roof intersection. These are diagnostic checks, not repairs. The actual work here isn’t a DIY project. You’re dealing with structural engineering, roof tie-ins, electrical panels, and in Fort Lauderdale, hurricane code requirements that a homeowner has no practical way to self-perform. We’ve repaired additions where a confident homeowner framed a wall himself and the inspector red-tagged the whole project because the header was undersized and the anchor bolts were spaced wrong. That repair cost more than the original framing would have.
Tell me what you need, I’ll tell you what it costs – then we’ll get it done. Call (754) 551-2922 and we’ll walk the site with you, take measurements, and put a real number in your hand.
FAQs
A properly built addition on a properly engineered foundation should last as long as the original house, which in Fort Lauderdale means 50 to 80 years or more for the structure itself. The weak points are the roof tie-in flashing, which needs inspection every 5 to 7 years, and the exterior finish, which takes a beating from the sun and salt air. Call (754) 551-2922 if you want us to inspect an existing addition before you buy or list a home.
Most failing additions can be repaired without full demolition. A settling foundation can be reinforced, a leaking roof tie-in can be re-flashed, and an undersized HVAC branch can be corrected with a dedicated mini-split or larger duct run. Full tear-out is rare and usually only makes sense when the framing itself has rotted from prolonged water intrusion. We’ll tell you honestly which category yours falls into after an inspection.
A typical room addition takes 10 to 16 weeks from permit issuance to final inspection. A detached ADU runs 5 to 9 months. The permit process in Fort Lauderdale itself adds 3 to 6 weeks depending on the scope and whether you’re in a historic district. We handle all permit paperwork and inspections so you’re not chasing the city yourself.
We source everything ourselves from suppliers we’ve worked with for years, which means we can match the trim profiles, window styles, and door casing of your American Standard home without handing you a shopping list. We also do a fair amount of work with KraftMaid and Wellborn cabinetry, Cambria and Silestone countertops, and James Hardie siding when the addition calls for them. Materials are ordered against the project schedule so we’re not storing framing lumber in the Florida humidity for a month before it gets installed.
Ready to talk about your addition or ADU? Call (754) 551-2922. A real person answers, any hour, and we’ll schedule a site visit with a written estimate at no charge.
Written by Trevor Nash, Owner, Penhallow Remodeling Fort Lauderdale at Penhallow Remodeling Fort Lauderdale, serving Fort Lauderdale and nearby areas.
