Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
CWS Home Additions & ADU: The Fort Lauderdale Owner’s Guide
A CWS home addition or ADU build in Fort Lauderdale typically runs $45,000 to $130,000 depending on square footage, foundation type, and whether we’re adding a bedroom, a full second story, or a detached accessory dwelling unit. Most owners find us when a previous addition was built without proper moisture management or wind-load framing, and they see cracks at the join line between old and new construction, sagging rooflines, or water staining inside the new space. That failure pattern is exactly what we correct, and we stock the structural connectors, shear wall materials, and hurricane-rated fasteners needed for a CWS-compatible rebuild in South Florida.
Penhallow Remodeling Fort Lauderdale is an independent contractor, not affiliated with CWS. What we offer is real parts knowledge for this home additions & adu category, honest pricing in writing, and a 365-Day Done Right Promise on every build.
Which CWS Models This Applies To
CWS produces a range of home addition and ADU framing kits, and the compatibility question is the first thing we sort out on site. The most common CWS product lines we work with are their standard modular addition frames and their prefabricated ADU shells, which come in 12-foot, 16-foot, and 20-foot header spans. The single most useful identifier is the metal spec plate riveted to the primary corner post or the bottom plate near the anchor bolts. That plate lists the series number, the wind-zone rating, and the manufactured date, and it tells us whether you need the original CWS connector set or whether a quality aftermarket equivalent from Simpson Strong-Tie will match the load path.
One gotcha we see regularly in Fort Lauderdale: CWS built some earlier kits with 16-gauge steel connectors that are no longer manufactured. If your addition predates 2010 and the connector shows white oxidation or flaking at the screw heads, the original hardware is likely compromised from coastal salt air, and we source the current retrofit bracket that fits the same post geometry. Don’t assume a generic bracket will work. The hole spacing on the CWS corner connector is 2 inches on center, not the 2-1/2 inch spacing on a typical off-the-shelf bracket.
We also install and finish CWS ADU kits alongside other trade brands we carry parts for, including KraftMaid cabinetry, Cambria, and Silestone countertops, when owners want the ADU finished out to a rentable standard.
Styles & brands we work with
Signs Your CWS Home Additions & ADU Is Failing
- Diagonal cracking at the join between the original house and the addition. This is almost always differential settlement or missing shear transfer at the tie-in point. In Fort Lauderdale’s sandy-substrate soil, a foundation that wasn’t designed for the addition’s load shifts slightly each season, and the crack widens.
- Doors or windows in the addition that stick or won’t latch. The frame is racking. That means the CWS shear wall or wall bracing has lost its connection, often because the original install used standard drywall screws instead of structural screws in the sheathing.
- Moisture staining on the ceiling or upper corners of the new space. South Florida humidity finds every gap. If the addition’s roof flashing or the transition membrane between old and new roofing was skipped or done with substandard material, you’ll see water marks within two or three rainy seasons.
- A visible gap opening between the bottom plate and the slab. The anchor bolts or epoxy anchors are pulling. This is a structural red flag, and in a wind event, that gap is where the building envelope begins to fail.
- Musty smell that doesn’t go away in the ADU or addition. Moisture intrusion behind the drywall has likely fostered mold inside the wall cavity. The vapor barrier is missing or improperly lapped, and the fix requires opening the wall to replace the affected sheathing and barrier.
Replacement Cost & What’s Included
For a CWS-compatible home additions & adu repair or rebuild in Fort Lauderdale, our installed work falls into these real ranges: fixing the tie-in and re-anchoring a foundation runs $5,000 to $14,000, replacing rotted sheathing and the vapor barrier in a single wall section costs $2,500 to $6,500, a full foundation correction for a settled addition is $12,000 to $30,000, and a complete new CWS-style ADU build starts at $90,000. The cost drivers are the size of the existing addition, whether the foundation can be repaired or must be partially repoured, and how much of the exterior cladding we have to remove to reach the failed structural members.
Every number is written down before work starts. Not an estimate range, not a verbal ballpark: the number on day one is the number on the invoice. The price includes all parts, labor, haul-away of demolished material, the permit work, and a written 365-Day Done Right Promise. If anything we fix fails inside that year, we come back and make it right at no charge.
See the difference
Before
After
Before
After
Before
AfterDIY or Call Us?
You can safely check your CWS addition’s corners and base plates for visible gaps, rust, or cracking, and you can photograph the spec plate so we know what series you have before we arrive. What you should not do is try to jack a settled foundation, pull and replace shear wall panels, or re-anchor structural posts. The loads involved in a home addition are enormous, and a jack placed wrong can crack the slab or drop a header on you. A structural repair done wrong is worse than the original failure.
If you’re seeing cracks, sticking doors, or water stains in a CWS addition in Fort Lauderdale, call (754) 551-2922. We’ll send a background-checked, uniformed technician to your home, assess the exact failure, and hand you a written price. Trevor Nash has been running crews across South Florida long enough to know that a written scope and a realistic number are the only way to start a repair that stays repaired.
FAQs
A properly tied-in and moisture-sealed CWS addition in Fort Lauderdale should last 50+ years with routine inspection of the flashing and exterior finishes. Failures we see are almost always the result of improper tie-in detailing or missing moisture barriers, not the CWS framing material itself. Call (754) 551-2922 if your addition is under 15 years old and already cracking because that points to an installation defect.
Most failing CWS additions can be repaired without a full teardown. We can re-anchor the foundation, replace rotted sheathing, install proper shear wall panels, and reseal the building envelope so the space is structurally sound and dry again. Only when the wood framing has been compromised by years of hidden moisture do we recommend a partial rebuild. Call (754) 551-2922 for an inspection and a written answer.
A typical tie-in repair or wall rebuild takes 3 to 10 working days depending on what we find behind the drywall. Foundation work can add a week for concrete curing. We show up in the window we give and we keep the site clean each day. Call (754) 551-2922 and we’ll give you a real arrival window and a written timeline.
We keep the common CWS-compatible connectors, structural screws, anchor bolts, and shear wall panels stocked and on our trucks, so most repairs start immediately. For a full prefabricated ADU kit or specialized retrofit brackets, we order from our trade suppliers with a 1 to 2 week lead time. Call (754) 551-2922 and we’ll confirm what’s in stock for your specific series.
Get a Written Price in Fort Lauderdale
If your CWS home addition is cracking, leaking, or racking, you want the problem diagnosed and the fix priced before the next weather front. Tell me what you need, I’ll tell you what it costs, then we’ll get it done. Call (754) 551-2922 to schedule a free estimate with Penhallow Remodeling Fort Lauderdale. A real person answers the phone 24/7, not an answering service. You’ll get a written price, a written timeline, and a written 365-Day Done Right Promise before any work starts.
Written by Trevor Nash, Owner, Penhallow Remodeling Fort Lauderdale, serving Fort Lauderdale and nearby areas.
