Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Delta Home Additions & ADU: The Orlando Owner’s Guide
Delta home additions and ADU construction in Orlando typically runs $45,000 – $130,000 for a room addition, and $90,000 – $220,000 for a detached accessory dwelling unit. We carry the framing hardware, Delta-spec fixtures, and structural materials these projects require, and we install everything with our own verified crews. Most Orlando homeowners discover they need this page when a Delta kitchen faucet in their planned addition leaks, a Delta shower valve in the new bath won’t hold temperature, or the Delta hardware specified for the ADU was ordered wrong and now the project is stalled. We fix that.
We’re an independent Orlando contractor. We’re not affiliated with Delta Faucet Company, but we specify and install Delta plumbing fixtures in nearly every addition and ADU we build here because they hold up to Central Florida’s hard water better than most brands we’ve tried. The mineral content in Orlando’s municipal water supply shortens the life of cartridge seals and mixing valves. We account for that when we plan a project.
Which Delta Models This Applies To
For home additions and ADUs, the Delta components that matter most are the rough-in valves and trim kits, not the faucets themselves. When you add a bathroom to an Orlando home, the plumbing gets roughed in before drywall goes up. That’s when the Delta valve body goes into the wall. Get the valve right and any Delta trim kit from the same series will fit later. Get it wrong and you’re opening the wall back up.
Here’s a compatibility gotcha we run into on Orlando jobs all the time: Delta’s MultiChoice universal valve (the R10000 series) fits nearly all Delta single-handle shower trims, but the older Monitor 1300/1400 series valve bodies do not accept newer Delta trim kits without a cartridge swap. If your addition was roughed in with a leftover valve from a previous project, that’s a real mismatch. We check the valve body model stamped on the rough-in plate before any trim gets ordered.
We also install Delta’s Touch2O and VoiceIQ kitchen faucets in additions where the homeowner wants that technology, but we’re honest about the tradeoff: the solenoid valve that powers Touch2O is more sensitive to Orlando’s mineral-heavy water than a standard cartridge faucet. A whole-house water softener changes that math. Without one, expect to replace that solenoid every three to five years. With a softener, you might get ten.
For ADU sinks and laundry hookups, we default to Delta’s commercial-style utility faucets or the basic single-handle kitchen models, not boutique finishes. They cost less to repair and the parts are on our trucks.
Styles & brands we work with
Signs Your Delta Home Additions & ADU Is Failing
- Water pressure drops in the new bathroom but not the rest of the house. This usually means the Delta pressure-balancing spool in the shower valve is gummed up with hard-water scale. It’s a $25 part, but it requires dropping the trim plate and pulling the cartridge to access it. Common in Orlando homes on municipal water with no softener.
- The shower won’t hold temperature when someone flushes a toilet. That’s the Delta pressure-balancing cartridge failing to compensate. In older Monitor series valves, it’s a symptom of a worn balancing spool. On newer MultiChoice valves, the cartridge itself usually needs replacement. We see this more often in additions where the existing water heater is already at capacity and the new bathroom pushed it over the edge.
- A Delta kitchen faucet drips from the spout or the base leaks onto the counter. The O-rings and springs in the cartridge wear out, and Orlando’s mineral deposits accelerate that wear. A recurring drip isn’t just annoying; water pooling on a new quartz countertop will etch the surface if it sits. We’ve replaced counters over this, and it’s a $2,000 mistake nobody should make twice.
- The new addition’s Delta fixtures are loud when water runs. A knocking or chattering sound usually means loose piping in the wall, not a Delta problem at all. That’s an installation issue, and it’s why we walk every addition with a stethoscope before drywall closes the walls. Catching a loose supply line behind a finished wall later means cutting tile.
- ADU plumbing is fine, but the framing or roof flashed at the connection point leaks after a storm. Home additions and ADUs in Orlando fail at the transitions first, not at the parts. Where new roof meets old roof, where new slab meets old foundation, where the Delta exterior hose bibb penetrates a new wall, those are the places water finds. We flash and seal those junctions to handle a Central Florida summer downpour, which is a different animal than a light rain.
Replacement Cost & What’s Included
The full project ranges are what most Orlando homeowners ask about first: $45,000 – $130,000 for a home addition, $90,000 – $220,000 for a detached ADU. But the Delta-specific component costs are much smaller and worth knowing. A Delta valve body swap before drywall is $300 – $600 in labor, parts included. A cartridge replacement in an existing Delta shower valve runs $150 – $400. A full Delta trim kit replacement, where the valve is fine but the finishes are dated or the homeowner wants a different style, runs $250 – $900 installed, depending on the series. Touch2O solenoid replacement on a Delta kitchen faucet: $100 – $250.
What drives the bigger addition and ADU numbers in Orlando: site work and foundation costs (Central Florida’s sandy soil and high water table often requires engineered fill or helical piers), wind-load engineering for code, impact-rated windows and doors, and the cost of tying new plumbing and electric into an existing panel that may already be at capacity. We give a written price before any work begins. No verbal estimates that grow later. Our guarantee covers the completed work for 365 days from the completion date, stated plainly in writing, including what’s covered and what’s excluded.
See the difference
Before
After
Before
After
Before
AfterDIY or Call Us?
You can safely check a few things before you call. Read the model number off your Delta shower trim plate or the base of the faucet spout. Look under the sink for water stains. Run the shower and see if the temperature swing happens only when other fixtures are in use. Those findings save us time, which saves you money.
What you should not do is open a Delta pressure-balancing valve yourself if you’ve never done one. The cartridge sits behind a retaining clip under spring tension, and if it releases wrong, you’re looking at water pouring out of a wall cavity. That’s a wet drywall repair on top of the original fix. Same warning applies to any electrical work in an addition or ADU. Tell me what the problem is. We’ll figure out the rest from there.
If you’re mid-project and a Delta fixture is the holdup, call (850) 920-7745. We’ll match the model, get the right part, and keep your Orlando project moving.
FAQs
A Delta shower valve or kitchen faucet in an Orlando home on unsoftened municipal water typically lasts 8 – 12 years before the cartridge needs replacement, but the solenoid in a Touch2O faucet often needs replacement in 3 – 5 years. With a water softener, those numbers roughly double. Call (850) 920-7745 and we can tell you what’s actually in your water and what it means for the fixtures you’re planning.
Yes, in most cases. The cartridge, balancing spool, O-rings, and springs are all replaceable parts, and we carry the common Delta cartridge models on our trucks. The only time you’re replacing a whole valve is if the brass valve body itself has cracked or corroded, which is rare. For a repair that costs $150 – $400, it almost always makes sense to fix rather than replace.
A cartridge or trim kit replacement takes 45 minutes to an hour once we’re on site. A full valve body swap in an open wall takes under two hours. What takes longer is waiting on a specialty Delta finish if it’s backordered, which is why we verify availability before any Orlando project starts.
We stock common Delta cartridges, balancing spools, and O-ring kits on our trucks, along with the MultiChoice valve bodies we specify for most Orlando additions and ADUs. We also stock compatible parts from KraftMaid, Cambria, and Silestone for cabinetry and surfaces when those are part of the project. If we don’t have a particular Delta finish in stock, we order it direct and tell you the lead time before you commit.
Call for a Free Estimate
If you’re planning a home addition or ADU in Orlando, or you’re stuck mid-project with a Delta fixture that’s holding everything up, call (850) 920-7745. We’ll give you a straight answer on what it costs and what it takes to get it done right. A written price, a named crew, and a one-year guarantee on our work. That’s how we’ve operated in Orlando since 2004.
Written by Isaac Pruett, Owner, Mason Remodeling Co Orlando at Mason Remodeling Co Orlando, serving Orlando and nearby areas.
