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Atlas Home Additions & ADU: The West Palm Beach Owner’s Guide
We plan, permit, and build Atlas home additions and ADU projects in West Palm Beach, and a typical project runs $45,000 – $130,000 depending on square footage, foundation work, and finish level. Homeowners usually call us after discovering their home addition or ADU has failed a structural inspection, developed water intrusion at the roofline, or simply wasn’t built to Florida wind-load code in the first place. The first sign is rarely a cracked tile. It’s usually a door that stops latching, drywall pulling at a corner, or a permit record that doesn’t match the room you’re standing in.
We’re an independent service provider, not affiliated with Atlas. We work on Atlas home additions and ADUs, and we also stock and install parts for KraftMaid, Cambria, and Silestone products. If your Atlas addition is showing wear or failing outright, this page tells you what to look for and what a proper fix costs in West Palm Beach.
Key Takeaways:
- Atlas home additions and ADUs in West Palm Beach typically run $45,000 – $130,000 installed.
- The most common failure points are roof-to-wall transitions, slab movement, and hurricane strap deficiencies.
- We write a fixed price before work starts. That number does not move at the door.
- Every completed project carries our 365-Day Done Right Promise in writing.
Which Atlas Models This Applies To
Atlas home additions and ADUs come in a few distinct configurations, and the fix depends on which one you have. The most common in West Palm Beach are single-story attached additions tied into the existing gable or hip roof, and detached ADUs with their own slab and service drop. Each has different failure points. An attached addition shares roof flashing and wall sheathing with the original structure, so a roof leak at the valley usually traces back to the transition, not the shingle itself. A detached ADU carries its own electrical subpanel and water service, and those are the first places we see trouble when the slab settles or the original rough-in was undersized.
The compatibility gotcha with Atlas projects is the original permit set. If your addition was permitted before the current Florida Building Code cycle, the original hurricane strapping and window anchoring may not meet today’s wind-load requirements. That means a repair that touches the exterior envelope can trigger an inspection that requires upgrading the entire tie-down system. We check the permit history before we quote, because that $4,000 wall repair can become a $14,000 strap-and-sheathing correction if nobody looked first.
For owners deciding between OEM Atlas-specified materials and quality aftermarket equivalents: on structural members and anchor systems, we stay with products that meet current code, regardless of brand name. On finish work like doors, windows, and trim, we’ll use name-brand equivalents from our documented roster, including Therma-Tru and James Hardie, when the Atlas spec is discontinued or backordered. You get the spec sheet with your written quote, so there’s no guessing later.
Styles & brands we work with
Signs Your Atlas Home Additions & ADU Is Failing
- Doors and windows that stick or won’t latch. This usually means the slab has moved or the wall framing has racked. In West Palm Beach, expansive soil and seasonal groundwater shifts are common, and the building envelope is the first place movement shows up.
- Drywall cracks at wall corners or above door headers. Hairline cracks are normal. Cracks wider than a dime, or cracks that run diagonally from a corner, point to structural movement or a missing header in the original build.
- Water staining at the ceiling-to-wall transition. On an attached Atlas addition, this is almost always a flashing failure where the new roof ties into the old one. The leak may show five feet from the actual entry point.
- Musty smell or elevated humidity in the ADU even with the AC running. Older Atlas ADUs often had undersized return air or missing vapor barriers. In Florida humidity, that translates to mold inside wall cavities, not just discomfort.
- Visible rust on hurricane straps or anchor plates in the attic. Coastal salt air accelerates corrosion. A rusted strap still looks like it’s doing its job. It isn’t. If you can see oxide scale, the metal has lost cross-section and needs replacement before the next wind event.
See the difference
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After
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AfterReplacement Cost & What’s Included
A full Atlas home addition or ADU project in West Palm Beach runs $45,000 – $130,000. At the low end, you’re looking at a modest single-room addition with basic finishes, standard windows, and a simple tie-in. At the high end, a detached ADU with a full kitchen, bath, separate service panel, and impact-rated openings pushes toward six figures, and the materials spec drives most of that spread. Cambria or Silestone countertops, KraftMaid cabinetry, and impact windows all move the number up, and we’ll show you exactly where.
Line-item pricing for common Atlas-related scopes in West Palm Beach:
- Structural repair to existing addition: $8,000 – $25,000
- Roof-to-wall flashing and re-roof tie-in: $4,500 – $12,000
- Hurricane strap and anchor retrofit: $6,000 – $18,000
- Whole-room addition, finished: $45,000 – $130,000
- Detached ADU, complete: $90,000 – $220,000
- Garage conversion: $30,000 – $80,000
Every quote we write is a fixed price. No numbers move at the door. The written quote includes the full scope, the material spec, the permit fee, and the labor, and it’s signed before a single tool comes out. When the job closes, you get a clean site and a signed 365-Day Done Right Promise. If the work fails inside that year, we come back and correct it at no charge.
DIY or Call Us?
There are things an owner can safely check on an Atlas addition or ADU. You can look for loose flashing, visual rust on exposed anchors, or water stains on the ceiling. You can check that the doors latch cleanly and the windows open without binding. Document what you find, and that helps us quote faster. But the moment the issue involves the roof structure, the electrical subpanel, the gas line, or load-bearing walls, that’s where DIY stops. High-tension torque on anchor bolts, improper flashing, or a wrong panel feed are not weekend fixes. They fail in ways that cause serious injury or a fire, and in West Palm Beach, an unpermitted structural repair can also void your homeowner’s insurance.
Straight number, full scope, no surprises after the invoice. That’s how we run every Atlas job. If your addition or ADU is showing any of the signs above, call (728) 203-9809 and we’ll walk the property, check the permit record, and give you a written price.
FAQs
A properly built Atlas addition or ADU in West Palm Beach should last 50 years or more structurally, but the roof flashing, exterior caulking, and window seals typically need replacement every 15 – 20 years because of Florida’s UV exposure and humidity. If you’re seeing failures before year ten, the original build likely cut a corner. Call (728) 203-9809 and we’ll inspect it and give you a written report and a fixed price for any needed work.
Most failures can be repaired without a full rebuild. Loose flashing, corroded straps, and even slab movement can often be corrected with the right fix, but if the original framing was underbuilt or the permit set doesn’t exist, a partial rebuild may be the only way to bring it to code. We’ll tell you straight which path applies to your project, and the estimate is free.
A typical structural repair or tie-in correction takes two to five working days, depending on inspection schedules and the scope of the fix. A full ADU build or major addition runs three to six months on average in West Palm Beach. We’ll give you a written timeline with the quote, and we hold to it.
We stock common structural hardware, flashing materials, anchor systems, and hurricane strap components on our trucks, and we order project-specific Atlas-compatible materials from our documented vendor list before the job starts. If a finish material is discontinued, we’ll offer an equivalent from brands like Therma-Tru or James Hardie and put the spec in writing before you approve it. Call (728) 203-9809 and we’ll confirm availability for your specific project.
Written by Curtis Lane, Owner, Bradford Remodeling Co – West Palm Beach at Bradford Remodeling Co West Palm Beach, serving West Palm Beach and nearby areas.
