Techo-Bloc Home Additions & ADU Nationwide

Techo-Bloc Home Additions & ADU: The Los Angeles Owner's Guide

If you're planning a home addition or ADU in Los Angeles and want it built around Techo-Bloc hardscape products, the installed cost typically runs $53,100 to $153,400, with ADU construction alone ranging from $106,200 to $259,600 depending on square footage, foundation work, and site access. We stock and install Techo-Bloc-compatible materials for addition and ADU projects, and we can usually get a crew scheduled within a week of your written estimate. Penhallow Remodeling is an independent contractor, not affiliated with Techo-Bloc, but we work with their paver and wall systems regularly because they hold up to Southern California's dry heat and occasional heavy rain better than most.

Call (936) 259-2607

Most Los Angeles homeowners reach out to us after discovering that a previous addition or ADU wasn't properly tied into the existing structure, leaving cracked stucco, uneven pavers, or a retaining wall that's starting to lean. Others are in the planning phase and want the hardscape, foundation, and framing done by one crew so the Techo-Bloc materials don't get compromised by a sloppy substrate. Either way, the first thing we do is give you a written price, not a ballpark.

Which Techo-Bloc Models This Applies To

Techo-Bloc makes a wide range of pavers, retaining wall blocks, and slab systems, and the right product for your Los Angeles addition or ADU depends on what it's supporting. For driveway aprons and walkways leading to a new ADU, we typically use the Blu 60 or Industria pavers, which carry heavier point loads without cracking. For low retaining walls around a sloped addition site, the Mini-Creta or Valley block lines work well, with the Valley line offering a more natural stone look that suits many Valley and Westside neighborhoods.

One compatibility gotcha we see often: Techo-Bloc's paver thickness ranges from 60mm to 80mm depending on the series, and using a 60mm paver on a driveway that will see delivery trucks or an RV will crack within a few years. We always verify the intended load before specifying which series to use. If you already have Techo-Bloc products on your property and want to match them, check the underside of an existing paver for a mold number, or look for the series name stamped on the face of retaining wall blocks. We can match most current production series, and for discontinued patterns we can usually source close equivalents or pull from remaining regional stock.

Signs Your Techo-Bloc Home Addition or ADU Project Is Failing

• Pavers settling or rocking underfoot around the new structure. This usually means the base layer wasn't compacted in lifts, or the soil beneath wasn't stabilized. In Los Angeles, expansive clay soil in areas like the San Fernando Valley shifts seasonally, and a thin base will fail fast.
• Retaining wall leaning or bulging. Techo-Bloc walls need proper geogrid reinforcement and drainage stone behind them. A wall that's bowing is usually holding water it was never designed to hold.
• Stucco cracking at the seam where the addition meets the original house. This is a structural connection issue, not a cosmetic one. The addition is moving independently of the main structure, which means the foundation or framing tie wasn't done correctly.
• Cracks running through the paver surface in a straight line. A linear crack pattern typically follows a buried utility trench or a poorly poured concrete collar. It's not the paver failing; it's what's under it.
• Standing water pooling against the foundation after rain. Techo-Bloc pavers should be pitched to shed water away from the structure. If water is ponding, the slope was set wrong or the base has sunk, and that water will find its way into the addition over time.

Replacement Cost & What's Included

In Los Angeles, a full home addition built with Techo-Bloc hardscape elements typically runs $53,100 to $153,400, while an ADU ranges from $106,200 to $259,600. What drives the spread is site access, foundation type (pier and beam versus slab), whether the addition ties into existing electrical and plumbing, and how much Techo-Bloc material is involved in the exterior work. A flat yard in Burbank costs less to build on than a hillside lot in Echo Park, and that difference shows up in the written estimate.

Every quote we give is a written price, not an estimate range. It includes all Techo-Bloc materials, base preparation, labor, fasteners, framing ties, and the 365-Day Done Right Promise: if something fails inside the guarantee period, we come back and fix it at no charge. We also give you a free second visit if a repair doesn't hold. You'll know the number before any work starts, and that number is the number on the invoice.

DIY or Call Us?

If you're considering a Techo-Bloc addition or ADU project, there are a few things you can safely assess yourself: walk the existing pavers and note any rocking or settling, check that downspouts discharge at least three feet from the foundation, and look for any stucco cracks wider than a dime at the addition seams. Those observations help us give you a more accurate written quote.

But the actual work, from foundation to framing to laying Techo-Bloc pavers, is not a weekend project. A paver base that isn't compacted correctly fails in a season or two. A framing connection that isn't tied properly compromises the entire structure. And in Los Angeles, any addition or ADU over 120 square feet requires permits, plans, and inspections. We pull the permits and make sure everything passes. Call (936) 259-2607 and we'll walk the site with you, give you a written price, and tell you exactly what the job involves before we pick up a tool.

FAQs