Techo-Bloc Home Additions & ADU Nationwide

Techo-Bloc Home Additions & ADU: The Fort Lauderdale Owner’s Guide

We stock and install Techo-Bloc-compatible paver systems for home additions and ADU hardscaping in Fort Lauderdale, with typical installed pricing from $45,000 to $130,000 for full additions and $90,000 to $220,000 for detached ADUs. Most Techo-Bloc paver patio, walkway, and foundation-border projects integrate into our addition and ADU scopes within the same construction timeline, not as a separate trade call. In Fort Lauderdale, we regularly see Techo-Bloc installations fail at the bedding layer or edge restraint, especially where the original contractor skipped the geotextile separation fabric over our sandy native soil or used plastic edging instead of aluminum or steel on load-bearing perimeter runs.

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Which Techo-Bloc Models This Applies To

Techo-Bloc’s paver lines relevant to home additions and ADU hardscaping fall into three categories: pedestrian-grade patio pavers (Blu, Eva, Villagio series), vehicular-grade driveway and equipment-pad pavers (Antika, Borgert-style thick profiles), and permeable systems (Aqua Bric, Hydra) increasingly specified for Fort Lauderdale’s stormwater management requirements on ADU sites. The part that matters here is not the paver face itself but the system beneath it: the bedding sand gradation (ASTM C33, not masonry sand), the edge restraint type and spike length, and the base course depth calibrated to expected load.

To identify what you have, look for the Techo-Bloc stamp on the paver underside or the project documentation from your original installation. The Villagio 60mm and Blu 80mm share a similar footprint but require different base depths: 4 inches compacted aggregate for pedestrian, 6 to 8 inches for anything receiving delivery equipment during your addition build. We source OEM Techo-Bloc compatible bedding and edge systems; aftermarket equivalents exist for the geotextile and base stone, but we specify Techo-Bloc’s own PermEdge aluminum restraint on any addition project where the paver border will see construction traffic, then construction equipment, then daily use.

One compatibility gotcha in Fort Lauderdale: Techo-Bloc’s older “Classic” series from pre-2018 installs used a slightly different interlock geometry. New pavers in the same color family may not seat flush, which we flag during scope review so you’re not matching a repair to a discontinued profile.

Signs Your Techo-Bloc Home Additions & ADU Is Failing

• Sinking or tilting pavers near the addition foundation. This usually means the bedding layer washed out where roof runoff concentrates during Fort Lauderdale’s summer downpours. The paver itself is fine; the base is compromised, and resetting without regrading the drainage path guarantees recurrence.
• Edge pavers migrating outward, creating a gap against the restraint. Plastic edging degrades in UV faster than most owners expect, especially on south- and west-facing ADU patios. Once the spikes pull, the interlock geometry unzips from the perimeter inward.
• White efflorescence haze that returns after cleaning. This is a paver chemistry issue, not structural failure, but in Fort Lauderdale’s humidity it signals moisture moving through the bedding layer continuously. We check whether the vapor barrier beneath the slab (on attached additions) or the ADU foundation drainage was omitted or punctured.
• Pavers rocking underfoot with visible joint sand loss. Polymeric sand breaks down when installed too wet or too dry, which happens often in our climate. The joint stabilizer fails, water enters, and the bedding screeds unevenly.
• Cracked pavers in a line pattern following the addition wall. This indicates differential settlement between the original structure’s footing and the new hardscape. In Victoria Park and similar older Fort Lauderdale neighborhoods with coquina or loose fill, we see this where the addition foundation was not tied properly to the paver base preparation.

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Replacement Cost & What’s Included

The range depends on three factors we itemize in every written quote: the square footage of Techo-Bloc surface, the base repair depth required (surface reset versus full excavation to compacted subgrade), and whether the addition or ADU project triggers new stormwater retention requirements under Fort Lauderdale’s updated land development code. Under Clause 1 of The Haven Standard, that written price arrives before any work starts. No change to the paver scope, the base depth, or the edge restraint specification proceeds without a signed change order. Our 365-Day Done Right Promise covers the installation; Techo-Bloc’s own product warranty covers material defects, which we document with batch numbers from every delivery.

DIY or Call Us?

What you can safely check: lift one paver at the failure edge and photograph the bedding layer color and consistency. If you see dark, saturated sand or mud, you have a drainage problem, not a paver problem. Note the paver stamp and measure one unit’s thickness. That’s useful information for any contractor.

Where DIY goes wrong: resetting pavers without recompacting the base in lifts, or using all-purpose sand instead of ASTM C33, guarantees the same failure in one to two Fort Lauderdale wet seasons. More critically, any addition or ADU hardscape tied to a foundation drainage system requires coordination with the primary structure’s waterproofing; a misstep here channels water toward the slab. We do not recommend owner excavation within 18 inches of any foundation without understanding the original drainage plan.

Call (754) 254-7676 to schedule your free estimate. We’ll scope the paver reset, the base condition, and the drainage integration in one visit, with a written price before you decide.

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