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American Standard Home Additions & ADU: The Orlando Owner’s Guide
If you’re planning a home addition or ADU and want American Standard fixtures, plumbing, and HVAC components specified into the build, we install and coordinate them as part of a larger project that typically runs $45,000 – $130,000 in Orlando, depending on square footage, site work, and finish level. Most homeowners discover they need this planning help when they realize their existing panel, water heater, or drain lines can’t support the added square footage, which is where the real cost hides. You call us because the addition needs to tie into your existing systems correctly, not just look good on paper.
We’re an independent general contractor in Orlando, not affiliated with American Standard. What that means for you: we can spec American Standard products where they make sense, but we’re not limited to one brand’s catalog when a different fixture or system fits your budget better. Luca Romano, who runs Sawyer Remodel Orlando, has spent nearly two decades tying additions into older Central Florida homes, and the first question is always the same: what will the existing structure and utilities actually carry?
Which American Standard Models This Applies To
American Standard doesn’t make “home additions” as a product, so this page is for Orlando homeowners who want American Standard components specified into an addition or ADU: their Cadet and Champion toilet lines, Colony and Portsmouth bath fixtures, and Platinum and Silver series HVAC equipment are the most common requests we see. The compatibility question that matters is not “does the toilet fit the flange” (it will), but whether your existing rough-in dimensions, vent stack, and water pressure can handle the added fixture count.
Here’s a gotcha we run into on Orlando homes built before 2000: many older slabs have 10-inch rough-in toilet flanges, while most American Standard models today are built for 12-inch. You either buy a specific 10-inch rough-in model (American Standard makes a few) or you open the slab, which adds real money. We check this before you buy anything. Same with shower valves, if you want an American Standard pressure-balancing valve in a new ADU bathroom, the valve body needs to be roughed in at the correct depth for the finished wall thickness, and that decision happens at framing, not at trim-out. We also stock or can quickly source American Standard fill valves, flush valve assemblies, and tub/shower cartridges for service calls on existing homes, so if a part fails while we’re on your addition project, it doesn’t stall the schedule.
Styles & brands we work with
Signs Your American Standard Home Additions & ADU Is Failing
Most “failures” in an addition or ADU aren’t the new fixtures. They’re the integration points where the new work meets the old house. Here’s what we find most often in Orlando:
- Water pressure drops when the new bathroom runs. The existing 1/2-inch supply line can’t feed a second full bath plus the original fixtures. The fix is a dedicated 3/4-inch run from the meter or a booster pump, planned before drywall goes up, not after.
- The new HVAC zone never reaches temperature in August. Orlando humidity loads are brutal, and a hand-sized duct run from the old unit short-cycles the compressor. The addition needs its own mini-split or a properly sized zone, not a guess from the original system’s leftover tonnage.
- Toilets gurgle or drain slowly in the new bathroom. This usually means the vent was tied into an undersized stack or the drain line lacks the required fall. In Orlando slab-on-grade construction, fixing this after the pour means breaking concrete, which is a five-figure lesson in doing it right the first time.
- Electrical breakers trip when the ADU’s appliances cycle. An ADU with a washer, dryer, mini-split, and kitchenette often needs its own 100-amp subpanel, not a couple of circuits pulled from the main house. We see this constantly in garage conversions and College Park bungalow additions where someone “just added a few outlets.”
- Moisture or mildew smells within the first Orlando rainy season. This is a flashing, vapor barrier, or drainage plane failure at the tie-in point where the addition roof and walls meet the original structure. It rarely shows up in the dry months, which is exactly when most additions get framed and closed in.
See the difference
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After
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After
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AfterReplacement Cost & What’s Included
For an Orlando home addition or ADU where American Standard fixtures and systems are specified, here’s the honest math.
- Home addition (300 – 600 sq ft, single-story with tie-in): $45,000 – $130,000
- ADU construction (detached or garage conversion, 400 – 800 sq ft): $90,000 – $220,000
- Garage conversion to living space: $30,000 – $80,000
- Kitchen remodel within the addition scope: $14,000 – $45,000
- Bathroom remodel within the addition scope: $9,000 – $28,000
What drives the range: site access and slab condition, whether the existing panel and water service need upgrades, the finish level you choose (builder-grade tile vs. Cambria tops and Kohler plumbing), and whether Orlando permitting requires hurricane strapping or impact glass on the new envelope. Every estimate from us includes a written price before any work starts, and the number you approve is the number on the invoice. No allowances that balloon ten weeks in, no change orders you didn’t sign for. The 365-Day Done Right Promise covers the workmanship for a full year after we close out, in writing.
DIY or Call Us?
Here’s the honest split. You can safely check your existing panel capacity by reading the main breaker rating, measure your water pressure at a hose bib with a $12 gauge from any Orlando hardware store, and walk your lot to see where the addition would tie into the roofline. That information helps you ask better questions and compare bids intelligently.
What you should not do is start cutting into your roof, moving drain lines, or pulling electrical permits without a licensed contractor. Florida building code for additions and ADUs is specific about wind load, tie-downs, and flood zone requirements depending on your Orlando neighborhood, and an unpermitted addition becomes your problem at resale, sometimes a six-figure problem. Framing a bearing wall wrong doesn’t just fail, it loads weight onto trusses that were never designed for it. We’ve fixed enough of those to know. If you’re weighing the scope, call (850) 809-0306 and we’ll walk it with you before you spend a dollar.
FAQs
A typical 300 – 600 sq ft addition runs 10 to 16 weeks from permit approval to final inspection, and an ADU usually lands between 5 and 9 months depending on utilities and site work. Orlando permitting alone can take 3 to 6 weeks, which is why we pull permits immediately after the contract is signed. Call (850) 809-0306 and we’ll give you a straight timeline for your specific scope.
Most Orlando homes built before 2010 need at least a dedicated water service upgrade and a separate HVAC solution for an ADU, and you won’t know for sure until we check your panel, service line size, and existing system capacity. We do this evaluation as part of the written estimate, not as a surprise after demo starts.
We stock American Standard fill valves, flush assemblies, and common shower cartridges, and we can source most other American Standard components same-week through our Orlando supply partners. If a fixture fails while we’re on the job, we don’t stop the schedule over a part.
No. The written price you approve before we start is the price on the final invoice. If you change the scope, we write a change order and you sign it before we proceed. That’s how we’ve run jobs since 2005, and the same rule applies whether we’re installing a vanity or a full ADU. Call (850) 809-0306 to get your written estimate started.
Written by Luca Romano, Owner & Lead Contractor, Sawyer Remodel Orlando at Sawyer Remodel Orlando, serving Orlando and nearby areas.
