Techo-Bloc Home Additions & ADU Nationwide

Techo-Bloc Home Additions & ADU: The Santa Clarita Owner’s Guide

We stock and install Techo-Bloc-compatible paver systems for home additions and ADU projects in Santa Clarita, with typical installed pricing from $45,000 to $130,000 for additions and $90,000 to $220,000 for detached ADUs. Most Santa Clarita homeowners discover their Techo-Bloc surface is failing when settling cracks appear near the new foundation tie-in, or when drainage pooling starts where the addition meets the original structure. In Canyon Country and Valencia, we see this often after the first heavy winter rain exposes a compaction gap that was hidden during dry months.

Call (747) 294-3985

Which Techo-Bloc Models This Applies To

Techo-Bloc’s paver lines for residential hardscaping include the Blu 80mm and 60mm series, the Villagio, the Antika, and the thicker Perma line designed for vehicular loads. For home additions and ADUs in Santa Clarita, the critical match is not the paver face pattern but the base specification: Blu 80mm with a minimum 6-inch aggregate base is what we specify when the addition’s foot traffic will include furniture moves and contractor wheelbarrows. The model stamp appears on the pallet label and occasionally on the spacer nub of the paver itself; if your leftover pallet is gone, measure the paver thickness at the edge and note the chamfer profile. Blu has a micro-chamfer, Villagio a more pronounced bevel.

We are an independent contractor, not affiliated with Techo-Bloc. For warranty continuity on your original install, we can source OEM Techo-Bloc through our distributor in Pacoima; for repairs where color match matters more than brand continuity, we stock Belgard equivalents with compatible ICC-ESR reports. The gotcha in Santa Clarita’s sun exposure: Techo-Bloc’s Champlain Grey and Greyed Nickel fade on different schedules, so a partial repair in a high-UV courtyard will show a band line within two summers unless we pull from the same dye lot or seal the entire surface.

Signs Your Techo-Bloc Home Additions & ADU Is Failing

• Step-cracking along the addition joint. The new foundation settled at a different rate than the original, shearing the bedding sand layer and creating a hinge point in the pavers. In Santa Clarita’s expansive clay soils, this typically shows up 18 to 36 months after completion.
• Water pooling against the new stem wall. The permeable base is clogged with sediment, or the original installer skipped the geotextile separation layer between native soil and aggregate. On hillside lots in Saugus, this accelerates when irrigation runoff follows the compacted trench line.
• Pavers rocking underfoot or sounding hollow. The bedding sand has washed out through an unsealed edge restraint, or the edge restraint itself has heaved from freeze-thaw at the Santa Clarita elevation extremes. We check this by sounding the surface with a rubber mallet; a solid paver rings, a voided one thuds.
• Efflorescence blooming that does not scrub off. Calcium hydroxide is migrating through the paver body from a concrete sub-base that was poured wet against the Techo-Bloc specification. This is a material incompatibility, not a cleaning problem.
• Edge restraint pulling away from the perimeter. Plastic PVC edging degrades in UV faster than aluminum; on south-facing ADU patios in Stevenson Ranch, we’ve measured 4-inch gaps where the spikes have walked out of softened edging.

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Replacement Cost & What’s Included

The range depends on three factors we put in writing before work starts: whether we can match the existing dye lot or must re-source, whether the base needs full excavation or spot correction, and whether the addition’s drainage ties into a municipal system or requires a dry well per Santa Clarita’s stormwater ordinance. Our quote separates paver material, base aggregate, labor, and disposal so you can see where the money goes. Under Clause 1 of the Haven Standard, that written price is fixed; if we hit unforeseen subsidence, we stop, photograph, and write a change order before proceeding. The 365-Day Done Right Promise covers settling, heave, and drainage performance.

DIY or Call Us?

What you can safely check yourself: lift one paver at the failure edge with a flat pry bar and photograph the base layer. If you see mud, not clean 3/4-inch crushed aggregate, you have a drainage failure. If the bedding sand is evenly 1-inch thick and the base is dry, you may have a simple relay job. What goes wrong fast: compacting the base without a plate compactor rated for 5,000 pounds of centrifugal force leaves soft spots that telegraph through in months. Re-cutting Techo-Bloc’s high-density concrete blend with a standard masonry blade chips the chamfer and voids the aesthetic match. And in Santa Clarita, any excavation within 18 inches of a gas line or within the utility easement requires a DigAlert ticket and often a city inspection. We pull those permits as standard; the photo record we deliver includes the ticket number and the inspector’s sign-off. Call (747) 294-3985 and we’ll review your photos at no charge.

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