







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Barrette Home Additions & ADU: The Miami Owner’s Guide
If you have a Barrette home addition or ADU component that’s failed or wearing out, we match the part, price it in writing, and install it correctly the first time. Most Barrette-related addition and ADU work in Miami runs between $53,100 and $153,400 installed, depending on whether we’re repairing a single failing system or rebuilding structural sections. You’ll typically notice the problem as a door that no longer seals, a corner that’s pulling away, or water staining where the addition meets the original structure.
We’re an independent Miami remodeling contractor, not a Barrette dealer or affiliate. That matters because we’re not here to push a brand. We’re here to tell you whether the Barrette component you have is worth repairing, what a quality equivalent costs if it isn’t, and what the installed price will be before we touch anything. Penhallow Remodeling Miami is led by Trevor Nash, and every job starts with a written number, not a conversation about how pricing might shift.
Which Barrette Models This Applies To

Barrette’s outdoor living and structural product lines cover a lot of ground: vinyl railing systems, aluminum fencing, composite decking, and the structural connectors and brackets used when a room addition or ADU ties into an existing home. The compatibility gotcha we see most often in Miami is that Barrette’s railing and fence lines have changed bracket geometry across production years. A bracket from a 2015 Barrette railing system won’t always seat properly on a 2022 post, even when both are labeled “Barrette vinyl railing.” The screw bosses are slightly different. We match by measuring the inside channel width and the post profile, not by trusting the label.
For OEM versus aftermarket: Barrette’s own replacement parts are fine when they’re still in production. But for Miami homeowners, powder-coated aluminum brackets sourced from a quality aftermarket supplier often outlast the original hardware in salt air. We carry both and tell you the price difference in writing. If your Barrette part is a structural connector on an ADU addition, we specify to Miami-Dade’s high-wind codes, which are stricter than the rest of the state. That’s not a corner you want cut.
We also work around the other brands in your home: KraftMaid cabinets, Cambria or Silestone counters. When a Barrette component fails near a finished surface, we protect that surface and tell you exactly what gets removed and reinstalled.
Styles & brands we work with







Signs Your Barrette Home Additions & ADU Is Failing
- Doors or windows in the addition bind or won’t latch. In Miami’s wet-dry cycles, the soil under a slab addition shifts. When a Barrette-framed addition moves slightly, the first sign is a door that sticks at the top corner. The frame isn’t the problem; the connection between old foundation and new is.
- Water staining where the addition wall meets the original house. The flashing detail where a new roofline ties into the original roof is the most common leak point on any addition. On Barrette-framed structures with vinyl or aluminum trim, failed flashing hides behind the trim and rots the sheathing before you see it indoors.
- Railing posts wobble at the deck or stair connection. Barrette railing systems use surface-mount or fascia-mount brackets. In Miami humidity, the lag threads can corrode inside the post and loosen. You’ll feel the wobble before you see it.
- Composite deck boards cup or buckle along the edges. Barrette’s composite decking expands and contracts with temperature. If the original installer butted boards tight against the house or each other, Miami’s summer heat makes them buckle. That’s an installation failure, not a product failure, and it’s repairable.
- A visible gap opens at the corner of the addition. If you can see daylight or feel a draft at any exterior corner, the structure has moved enough to separate the corner trim. Left alone in Miami, that gap lets in water and carpenter ants. It needs to be opened up, inspected, and re-secured, not just caulked.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included

Here’s what Barrette-related addition and ADU work actually costs in Miami, installed:
- Structural repair to a failing Barrette-framed addition: $53,100 – $153,400 depending on how much framing, sheathing, and finish work needs to be opened up and rebuilt.
- Full ADU construction with Barrette framing and exterior systems: $106,200 – $259,600, driven by size, foundation type, and whether you’re tying into existing utilities or running new service.
- Railing or deck component replacement on a Barrette system: typically $2,360 – $7,670 for a full railing section on an existing deck or addition, including brackets and fasteners rated for Miami’s coastal exposure.
The range is wide for a reason. On a repair, the biggest variable is what we find once we open the wall: rotted sheathing, termite damage, or framing that was never properly tied. On new ADU construction, foundation work and utility runs move the price more than anything else. Every Penhallow Remodeling Miami job includes a written price before work starts, the 365-Day Done Right Promise in writing, and a free return visit if anything fails inside that year. We install materials from brands that stand behind their own warranties, and we stand behind our labor separately.
DIY or Call Us?
You can safely check a few things yourself. Run your hand along the seam where the addition meets the house and look for soft spots. Wiggle each railing post. Look under the addition’s eaves for staining. Those checks tell you what’s wrong without putting you at risk.
What you should not do is open up a wall, lift a deck board, or pull a railing post if any part of the structure is under load or tied to the roofline. On additions and ADUs, the dangerous part isn’t always obvious. A wall that’s holding a roof edge can shift the moment you remove a single connection. If the job involves any structural connection, call us at (850) 988-7559. We’ll come out, look, and hand you a written number before any tools come off the truck. Give you a number first, then pick up the tools.
FAQs

In Miami’s heat, humidity, and salt air, you can expect 10 to 15 years from vinyl railing and trim before bracketry and fasteners need replacement, and 20 to 30 years from properly flashed structural framing. Salt air near the coast shortens hardware life significantly. Call (850) 988-7559 and we’ll tell you honestly whether your specific Barrette component is at mid-life or end-of-life.
Usually yes, if we catch it before rot or termite damage spreads beyond the immediate connection points. That’s why we encourage homeowners to call at the first sign of a binding door or visible gap. A $53,100 structural repair is a lot easier to stomach than a $153,400 rebuild. Call (850) 988-7559 for an inspection.
A railing or deck component swap takes one to two days. A structural repair on an addition runs one to three weeks depending on permitting and what we find in the wall. A full ADU construction runs four to eight months including Miami-Dade permitting. We give you a written timeline with the written price, and we show up in the window we promised.
We stock the most common Barrette railing brackets, fasteners, and deck clips in our Miami trucks, plus aftermarket aluminum brackets that handle salt air better than the originals. Structural components for additions and ADUs are ordered per job and specified to Miami-Dade wind code. If we have it, you get it same day. If we don’t, we tell you exactly when it lands. Call (850) 988-7559 and ask us directly.
If your Barrette addition or ADU is showing signs of trouble, don’t wait until the drywall tells you what’s behind it. Call (850) 988-7559 for a free estimate. Trevor Nash will walk the job with you, put the number in writing, and tell you exactly what’s included before any work begins.
Written by Trevor Nash, Owner, Penhallow Remodeling Miami at Penhallow Remodeling Miami, serving Miami and nearby areas including Coconut Grove, Coral Gables, Kendall, and Doral. Trevor trained at Los Angeles Trade-Technical College and has spent nearly three decades swinging a hammer on jobs from small bath refreshes to full structural overhauls.


