Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Kohler Home Additions & ADU: The Fort Lauderdale Owner’s Guide
Kohler home additions and ADU projects in Fort Lauderdale typically run $45,000 to $130,000 fully installed, with permit-ready plans, all rough-in plumbing and electrical, and your chosen Kohler fixtures set and tested before we call it done. Most owners don’t wake up planning an addition. They run out of room first. A Kohler kitchen faucet starts dripping, a bathroom sink gets replaced, and suddenly someone in the house says what they’ve been thinking for two years: we need more space. What happens next is where people get burned, because not every remodeler in Fort Lauderdale actually knows which Kohler fixtures play well with a Florida addition’s plumbing layout, humidity, and code requirements.
We do. Mason Remodeling Co Fort Lauderdale has been building additions and ADUs across this city long enough to know that a Kohler fixture spec’d wrong for your water pressure or drain configuration will annoy you every single day. We’re an independent contractor, not affiliated with Kohler, but we install and service their products weekly. The good news: if you’re reading this because a Kohler part failed, most fixture-level repairs are quick. If you’re reading this because you’re ready to add square footage with Kohler fixtures throughout, the guide below is what we’d tell you over the phone.
Which Kohler Models This Applies To
Kohler’s lineup for additions and ADUs splits into a few distinct lines, and mixing them up creates real problems. The Purist and Artifacts lines are the most common we install in Fort Lauderdale additions. Purist runs lean and modern, with tighter clearances that work well in compact ADU bathrooms where every inch counts. Artifacts leans traditional, with bigger deck plates and longer spout reaches that need more counter depth behind the sink. That’s a gotcha we’ve seen more than once: someone orders an Artifacts widespread faucet for an 18-inch vanity, and the handles crowd the back edge. Measure your counter depth before you commit.
The Highline and Cimarron toilets are workhorses for ADUs. The Highline’s 3-inch flush valve clears waste faster, which matters in a detached ADU with a longer drain run to the main line. The Cimarron uses a standard 2-1/8-inch canister and still performs fine for most additions. Both use Kohler’s standard 12-inch rough-in, so if your slab was poured for a different rough-in, we need to know that before tile goes down. For shower valves, the Rite-Temp pressure-balancing valve is required by Florida code in most cases, and Kohler’s version has a serviceable cartridge that we stock on the truck. Thermostatic valves cost more but hold temperature steadier when someone flushes a toilet elsewhere in the house.
On OEM versus aftermarket: for finish parts like handles and spouts, aftermarket equivalents rarely match Kohler’s Vibrant PVD finish exactly, and in Fort Lauderdale’s salt air, a mismatched finish will show tarnish within a year. For internal cartridges and flush valves, quality aftermarket options from makers like Danco work fine and cost less, and we use them routinely when the warranty has expired. For anything inside the wall, we use OEM Kohler parts. You don’t want to open a tiled shower wall twice because a $20 aftermarket valve stem failed.
Styles & brands we work with
Signs Your Kohler Home Additions & ADU Is Failing
- Water pressure drops in the new addition only. This usually means the supply lines were undersized when the addition was roughed in, or a Kohler flow restrictor is clogged with sediment from Fort Lauderdale’s municipal water. The cheap fix is cleaning or replacing the restrictor; the real fix is resizing the supply run.
- Shower temperature swings when other fixtures run. A worn Rite-Temp cartridge or a failing pressure-balancing spool lets a toilet flush yank cold water away from the shower. It’s not a Kohler design flaw; it’s a wear item in hard water areas like ours.
- Toilet runs intermittently or refills on its own. The flapper or canister seal degrades faster in Florida’s heat and mineral-heavy water. On Highline models, the 3-inch seal is the first thing we check. On Cimarrons, it’s usually the fill valve diaphragm.
- Finish pitting or spotting on faucets and shower trim. Fort Lauderdale’s proximity to salt air accelerates corrosion on lower-grade finishes. Kohler’s Vibrant finishes hold up better than most, but even they will pit eventually if not wiped down. Once pitting starts, the finish is gone; replacement trim is the only real fix.
- Slow drains in the addition but not the main house. This points to a plumbing pitch problem in the addition’s drain run, not a fixture issue. We see it a lot in garage conversions where the slab wasn’t pitched right to the new drain location.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
For a full Kohler home addition in Fort Lauderdale, expect $45,000 to $130,000. A detached ADU with a full Kohler bath and kitchenette runs higher, and the pricing guidance above holds: an ADU construction project typically lands between $90,000 and $220,000 depending on square footage, foundation type, and whether you’re connecting to existing utilities or running new lines from the street. A garage conversion with Kohler fixtures is the most economical path into this kind of project at $30,000 to $80,000.
Every one of our projects starts the same way: we come out, look at what you have, and hand you a written price before any work starts. Not a verbal ballpark. A written line-item quote that covers demolition, rough-in, Kohler fixture installation, finish work, and permits. If something changes behind the drywall, we tell you what we found, what it takes to fix it, and what it will cost before we touch a thing. Our work carries a written guarantee, and the 365-Day Done Right Promise means if it’s not right within a year of completion, we make it right at no cost to you.
DIY or Call Us?
Some Kohler parts are genuinely homeowner-friendly. A clogged aerator, a worn flapper, a dripping tub spout diverter: those are ten-minute fixes with a wrench and a little patience. Kohler’s own installation guides are decent, and we’ll happily tell you which parts you can handle yourself over the phone. But anything inside a shower wall or below a slab is a different conversation. Hydro excavation of a drainage issue, re-pitching drain lines, opening a tiled wall to replace a rough-in valve: these are jobs where a mistake floods your addition or compromises your plumbing inspection. We’ve walked onto Fort Lauderdale job sites where a DIY attempt turned a $400 valve swap into an $8,000 water damage claim.
If you’re not certain which category your problem falls into, call us. We’d rather spend five minutes on the phone steering you right than watch you create a bigger repair than the one you started with. (754) 354-3720. A live person answers, any hour, any day.
FAQs
Kohler faucets and valves typically last 10 to 15 years in Fort Lauderdale’s water conditions before internal cartridges and seals need replacement, though hard water and salt air can shorten that to 8 years on finish components. The fixtures themselves rarely fail; the consumable parts inside them do, and those are replaceable. Call (754) 354-3720 and we’ll tell you what’s worth replacing versus what’s worth upgrading.
Internal parts like cartridges, flush valves, and aerators are routinely repairable with OEM or quality aftermarket components, and we stock the most common ones on the truck. Once a finish is pitted or a porcelain surface cracks, repair isn’t realistic, and replacement is the honest bid. We’ll tell you which path makes sense before we quote a dollar amount.
A full addition with Kohler fixtures throughout takes anywhere from 10 to 20 weeks depending on permitting, foundation work, and inspection scheduling in Fort Lauderdale. A single-bath fixture replacement inside an existing addition is often one to two days. Permits and inspections are the biggest timeline variable, not the work itself.
We stock common Kohler cartridges, flush valves, aerators, and trim pieces on our trucks, and we have quick access to full fixture sets through our supplier network, which also includes KraftMaid cabinetry, Cambria and Silestone surfaces. If a part isn’t on hand, we’ll have a genuine Kohler replacement ordered same day and installed as soon as it lands.
If you’re planning a Kohler home addition or ADU in Fort Lauderdale, or you have a failing Kohler fixture that needs an honest assessment, call Isaac and the team at Mason Remodeling Co Fort Lauderdale at (754) 354-3720 for a free estimate. We’ll walk the space, give you a written price, and tell you exactly who’s coming to your door before they arrive, with a name, a photo, and a badge.
Written by Isaac Pruett, Owner, Mason Remodeling Co Fort Lauderdale at Mason Remodeling Co Fort Lauderdale, serving Fort Lauderdale and nearby areas.
