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Tremron Home Additions & ADU: The Fort Lauderdale Owner’s Guide
Home additions and ADUs built with Tremron block in Fort Lauderdale typically run $45,000 – $130,000 for the full project, and ADU construction starts at $90,000. We work on Tremron block structures across Broward County, matching existing block patterns and mortar profiles so the new section doesn’t look like an afterthought. Most owners call us when they notice cracking at the tie-in point where old block meets new, or when water starts working its way through exterior walls after a heavy South Florida rain.
What usually brings the phone call is a failed seam. Fort Lauderdale’s wet-dry cycle is rough on masonry. Block expands in the humidity, contracts in the winter dry spells, and the mortar joint where a Tremron addition meets the original structure takes the brunt of that movement. We see it in Victoria Park, Rio Vista, Sailboat Bend, Coral Ridge, and every other neighborhood with homes built 20 to 60 years ago.
Which Tremron Models This Applies To
Tremron manufactures a range of concrete masonry and hardscape products, and the compatibility question matters more on additions than most people expect. Tremron’s structural block lines differ by texture, color blend, and modular dimension. The block used on a 1990s Fort Lauderdale ranch might not match what Tremron produces today, even in the same nominal size. That’s the first thing we check.
Here’s what we look for: the actual face dimensions, not just the nominal 8″ or 12″ module. Tremron block has evolved, and older production runs can differ by a quarter inch in reveal depth. We also match the aggregate color. Fort Lauderdale’s coastal air oxidizes concrete over time, which means a brand-new Tremron block next to 30-year-old Tremron block will look noticeably lighter unless we source or tint appropriately. For OEM versus aftermarket: Tremron block itself is the material. There isn’t a third-party “Tremron-compatible” structural block worth using. For a load-bearing addition in Fort Lauderdale, where wind loads from hurricane season are a real structural factor, we use genuine Tremron block or an engineer-specified equivalent. On decorative elements like caps and sills, quality aftermarket options exist and can save money. But when South Florida building code and wind mitigation are in play, this is not the place to cut a corner.
Styles & brands we work with
Signs Your Tremron Home Additions & ADU Is Failing
- Stair-step cracking along the mortar joints near the tie-in. This is the classic sign of differential settlement between the original structure and the addition. The older part of the house has settled as much as it ever will; the newer addition is still moving. The crack is the building telling you the two parts are moving at different rates.
- Horizontal cracks at the top of the wall, just under the roofline. In Fort Lauderdale, this often traces back to wind uplift or a roof tie-down that wasn’t spec’d correctly for Miami-Dade and Broward wind codes. It’s not cosmetic, and it won’t stay a small crack.
- Efflorescence, that white chalky film, keeps returning after you clean it off. That means water is moving through the block from the inside out, carrying salts with it. A one-time cleaning masks it. Fixing it means finding where the water is entering, which on a Tremron addition is usually a failed flashing detail at the roof-to-wall intersection.
- Doors or windows in the addition start sticking or won’t latch. The block is shifting enough that the framed openings are racking. If it happens seasonally, it’s the humidity cycle. If it’s getting worse month over month, it’s settlement or a footing issue.
- You can see light, or feel air moving, through the mortar joints. This is past a cosmetic problem. The wall assembly has a gap, and in Fort Lauderdale, a gap means water intrusion, pests, and a loss of the structure’s wind resistance. It also means the original masonry contractor probably didn’t tool the joints properly.
See the difference
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AfterReplacement Cost & What’s Included
For a Tremron block home addition in Fort Lauderdale, full project pricing lands between $45,000 and $130,000. ADU construction ranges from $90,000 to $220,000. That spread reflects square footage, roofline complexity, foundation work, and how much of the existing structure has to be opened up to make the tie-in correct.
What drives the price within that range: foundation conditions. Fort Lauderdale sits on sand and limestone. Some lots need nothing more than a standard footing; others need deeper excavation or soil remediation. The second variable is the block itself. If we’re matching existing Tremron block from decades ago, there may be sourcing lead time or additional color-matching work. Every quote includes the block, mortar, ties, flashing, waterproofing, and labor. We hand you a written price before any work starts, and that price includes our 365-Day Done Right Promise: if the work isn’t right within a year of completion, we fix it at no cost to you.
DIY or Call Us?
A homeowner can certainly watch for the warning signs I listed above and keep exterior walls clean. But repairing load-bearing Tremron block on an addition is not a weekend project. You’re dealing with structural integrity, wind-load requirements, and waterproofing details that sit behind the wall finish. Get it wrong and you won’t see the failure until the next tropical storm pushes water through it. Masonry work on a load-bearing wall in a hurricane zone belongs with a licensed contractor.
If you see cracking that’s new or getting worse, call us at (754) 354-3720. We’ll tell you what we found, what it takes to fix it, and what it will cost, before we touch a thing. Estimates are free.
FAQs
A properly built Tremron block addition should last 60 to 80 years or more in Fort Lauderdale, provided the flashing and waterproofing details were done correctly. The weak point is rarely the block itself; it’s the mortar joints and sealant lines, which typically need attention every 15 to 20 years in this climate. The salt air and the annual wet-dry cycle simply work on masonry faster here than inland. If you have a Tremron addition that’s showing its age, call (754) 354-3720 and we’ll look at what’s salvageable versus what needs rebuilding.
In most cases, yes. Cracks can be addressed with structural epoxy injection or helical ties, and water-intrusion issues often trace to failed flashing that can be replaced without demoing the wall. We have saved homeowners tens of thousands by repairing block and waterproofing rather than tearing out and starting over. That said, if the footing has failed or the wall is racked out of alignment, repair may not be the honest answer. Call (754) 354-3720 for a straight assessment, no charge for the estimate.
An attached addition on a good foundation typically runs 3 to 6 months from permit approval to final inspection, depending on size and finish level. ADUs run 4 to 8 months. The permit process in Fort Lauderdale and Broward County usually adds 3 to 8 weeks before construction starts. We pull the permits, we schedule the inspections, and you get a written timeline before we start so you’re not guessing at any point in the process.
We source Tremron block directly from the manufacturer and keep an inventory of common profiles for our active projects. When we need to match an older or discontinued Tremron blend, we have relationships with local suppliers across Broward County and can typically source what’s needed within a few days. For specialty or large-volume orders, lead time can run one to two weeks, and we factor that into the schedule up front so there are no surprises.
Written by Isaac Pruett, Owner, Mason Remodeling Co Fort Lauderdale at Mason Remodeling Co Fort Lauderdale, serving Fort Lauderdale and nearby areas.
