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Sterling Home Additions & ADU: The Fort Lauderdale Owner’s Guide
If you have a Sterling home addition or ADU and something’s failing, you need a straight answer on what it costs and who can fix it. In Fort Lauderdale, a full home addition runs $45,000 to $130,000, while ADU construction lands between $90,000 and $220,000 depending on size, foundation work, and finish level. We stock and install Sterling-compatible components across these structures, and we’ll give you a written price before any work starts.
Most homeowners discover a problem in their Sterling addition or ADU the same way: a door starts sticking, a corner of the floor feels soft, or water shows up where it shouldn’t. Florida humidity and hurricane-season rain expose weak points fast. By the time you notice it, the underlying issue has usually been developing for months.
We carry replacement parts and materials for Sterling additions and ADUs throughout Fort Lauderdale, from Victoria Park to Rio Vista to Coral Ridge. We’re an independent service provider, not affiliated with Sterling, which means we can source both OEM and quality aftermarket components without being locked into one supply line.
Which Sterling Models This Applies To
Sterling home additions and ADUs in Fort Lauderdale typically fall into three categories: attached room additions, detached ADUs, and garage conversions. Each has different failure points, and matching the right component means knowing what you’re actually looking at. Attached additions share roof and wall assemblies with the main house, so flashing and tie-in details matter more than anything else. Detached ADUs carry their own foundation and rooflines, which means settlement and moisture issues show up independently.
To identify the right part or material spec, check the original permit packet or the builder’s plate if one exists. Measure the actual opening or span before you buy anything. A 2×6 wall framed 16 inches on center takes different hardware than a 2×4 wall at 24 inches. For Sterling-specific builds, we’ve seen a lot of 2×6 exterior wall framing with hurricane straps at every truss connection, which is code-driven in Broward County but not always done right by the original installer.
Here’s the OEM-versus-aftermarket reality: for structural connectors, flashing, and waterproofing, you want name-brand materials like Simpson Strong-Tie, Grace Ice & Water Shield, or Zip System sheathing. For finish components like door thresholds or window trim, quality aftermarket equivalents often outperform OEM at 60 to 70 percent of the price. We’ll tell you which is which before you spend a dollar.
Styles & brands we work with
Signs Your Sterling Home Additions & ADU Is Failing
- Doors or windows sticking or not latching cleanly. This usually means the addition has settled or the framing has shifted. In Fort Lauderdale’s sandy soil, settlement is common, but it can also signal a moisture problem swelling the framing.
- Soft spots or spongy areas in the floor. Water has gotten into the subfloor, almost always from a failed seal at a door threshold, a window, or a roof flashing point. By the time you feel it, the subfloor plywood or OSB is compromised and needs replacement.
- Water stains on the ceiling or at wall-to-ceiling joints. This points to a roof flashing failure where the addition ties into the main structure. That tie-in seam is the single most common failure point on attached Sterling additions we service in Fort Lauderdale.
- Musty smell that won’t go away, especially after rain. You have a hidden moisture source, likely behind drywall or under flooring. Florida’s humidity means mold starts growing within 48 hours of a leak.
- Cracks running diagonally from window or door corners. This indicates movement in the wall framing or foundation. Hairline cracks are normal; cracks wider than a quarter-inch or cracks that grow over a season are not.
See the difference
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After
Before
After
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AfterReplacement Cost & What’s Included
For a Sterling home addition in Fort Lauderdale, plan on $45,000 to $130,000 installed, and for an ADU, $90,000 to $220,000. Those ranges cover everything: demo of the failed components, materials, labor, permits, and cleanup. The spread comes down to size, whether you’re repairing an existing structure or rebuilding a section, and what finish level you’re matching.
Here’s how the line items typically break down in Fort Lauderdale:
- Structural repair (foundation, framing, roof): $8,000 to $40,000 depending on scope
- Weatherproofing and flashing replacement: $1,500 to $6,000
- Flooring and subfloor replacement: $3,000 to $12,000
- Windows and doors (impact-rated in Broward County): $8,000 to $25,000 for full replacement
- Interior finish work (drywall, trim, paint): $2,000 to $9,000
The parts-and-labor split is usually 45 percent materials, 55 percent labor on these jobs. Every project gets a written price before work begins, not a verbal estimate that grows on the final bill. If we find something unexpected 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. That’s how Isaac Pruett runs every job at Mason Remodeling Co Fort Lauderdale.
All work is covered by our 365-Day Done Right Promise: if it’s not right within a year of completion, we make it right at no cost to you.
DIY or Call Us?
Here’s the honest split. You can safely inspect your Sterling addition or ADU yourself: check for water stains, run your hand along door thresholds after rain, look for visible cracks. That helps you describe the problem accurately when you call. What you shouldn’t do is open up walls, pull up flooring, or mess with roof flashing on a structure that’s already compromised. A water-damaged addition in Fort Lauderdale often hides structural damage behind the surface, and cutting into a load-bearing wall without knowing what’s behind it is how small problems become $20,000 problems.
Roof work, in particular, is not a DIY job. Falls from additions and ADUs are one of the most common homeowner injuries we see reported. If the issue is at the roofline or the tie-in seam, call us. We’ll send a background-checked, uniformed technician with a photo ID badge at the door, and you’ll know their name and see their photo before they arrive. That’s the Threshold Standard, and it applies on every visit.
Call (754) 354-3720 and we’ll come take a look. The estimate is free.
FAQs
A properly built addition or ADU in Fort Lauderdale should last 50 to 80 years structurally, but the moisture-exposed components (flashing, seals, caulking, door thresholds) need attention every 5 to 10 years in Florida’s heat and humidity. The original construction quality matters more than the brand name. Call (754) 354-3720 for a full inspection and honest assessment, free of charge.
Most failures we see in Fort Lauderdale are repairable: failed flashing, water-damaged subfloor sections, sticking doors, cracked drywall. Full rebuilds are only necessary when the framing itself is compromised by long-term water exposure or the foundation has shifted significantly. We’ll tell you which one you’re dealing with before we quote anything. Call (754) 354-3720 for a written assessment.
Most structural repairs and weatherproofing jobs on Fort Lauderdale additions and ADUs take 2 to 5 weeks from start to finish, depending on permit lead times with the City of Fort Lauderdale and the scope of the damage. Smaller repairs like threshold replacement or caulking can be done in a single visit. We’ll give you a timeline in writing before work starts.
We keep common structural connectors, flashing materials, waterproofing membranes, door thresholds, and window components on our trucks, and we source Sterling-compatible parts for additions and ADUs within 2 to 3 business days when special ordering is required. We also work with KraftMaid, Cambria, and Silestone materials when finish matching is needed. Call (754) 354-3720 to check on a specific part.
Written by Isaac Pruett, Owner, Mason Remodeling Co Fort Lauderdale at Mason Remodeling Co Fort Lauderdale, serving Fort Lauderdale and nearby areas.
