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Techo-Bloc Home Additions & ADU: The San Diego Owner’s Guide
If you’re planning a home addition or ADU in San Diego with Techo-Bloc hardscaping tied into the project, you’re likely looking at a full build that typically runs $53,100 to $153,400 depending on square footage, foundation work, and the extent of Techo-Bloc paver or wall integration. We’re Penhallow Remodeling San Diego, an independent contractor, and we handle these projects from permits to the final course of Techo-Bloc retaining wall. Most owners call us after realizing their existing concrete or older paver work isn’t rated for the structural demands of an addition, or when they want the driveway, walkway, and patio to match the new build instead of looking like an afterthought.
Which Techo-Bloc Models This Applies To
For home additions and ADUs, the Techo-Bloc products we most often integrate are the Blu 60, Blu 80, and Mista paver lines for driveways and walkways, plus the Raffinato or Prescott wall systems for retaining and seat walls. Here’s the thing most San Diego homeowners don’t know: Techo-Bloc pavers come in specific thickness ratings, and the Blu 60 is a 60mm paver suited for pedestrian areas only. If you’re adding a driveway or expecting delivery trucks during the build, you need the Blu 80 at 80mm, which is rated for vehicular traffic. That’s a compatibility gotcha that catches people. We identify the right product by checking the paver’s underside markings and measuring the thickness with a caliper on site, because a 60mm paver and an 80mm paver can look identical from above. For OEM versus aftermarket: Techo-Bloc has excellent color consistency within a batch, but batches do shift slightly over time. If you’re extending an existing patio, we recommend ordering from a matching lot when possible, or blending courses so the transition looks intentional rather than patched.
Styles & brands we work with
Signs Your Techo-Bloc Home Additions & ADU Is Failing
On a project this size, what usually fails first isn’t the Techo-Bloc itself. It’s what’s under it. Here’s what we see across San Diego:
- Settling or sinking pavers near the addition’s foundation line. This almost always means the base material wasn’t compacted in lifts, or drainage wasn’t addressed before the build. The pavers are fine; the substrate failed.
- Cracks running through pavers along a new wall or footing. That’s differential movement between the new structure and the existing soil. In San Diego’s clay-heavy areas like Clairemont, soil expands and contracts with moisture, and pavers bridging two zones will crack without an isolation joint.
- Efflorescence, the white chalky film, spreading across large surfaces. This is more cosmetic than structural, but it signals persistent moisture moving through the base, which over time shortens paver life and can stain adjacent Techo-Bloc walls.
- Retaining wall leaning or bulging outward. A Raffinato or Prescott wall that’s starting to lean means the backfill behind it is pushing, usually from poor drainage or no geogrid reinforcement. This is a safety issue if the wall is over 3 feet tall.
- Pavers shifting when you walk on them, a rocking or clicking feel. The sand joints have washed out or the edge restraint failed. Left alone, the pattern degrades and you’ll be redoing the whole surface within a couple seasons.
See the difference
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After
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AfterReplacement Cost & What’s Included
In San Diego, a full home addition with Techo-Bloc site work lands between $53,100 and $153,400, and an ADU with matching Techo-Bloc hardscaping runs $106,200 to $259,600. What drives the range: whether we’re pouring new footings, upgrading drainage, running utilities, or just doing finish site work. The Techo-Bloc portion itself, meaning pavers, walls, and installation, typically accounts for $15,000 to $45,000 of that total depending on square footage and product line. You get a written price before we start, and that number holds. No change orders unless you change the scope. Every project carries our 365-Day Done Right Promise in writing: if the work fails inside a year, we come back and make it right at no charge. That’s the Kingswell standard, and Trevor Nash has been holding crews to it across San Diego since he picked up his first framing hammer at LATTC and learned that honest measurements beat shortcuts every time.
DIY or Call Us?
You can safely inspect your existing site work: look for standing water after rain, check paver edges for gaps, and walk the surface to feel for movement. What you should not do is attempt to reset a failing retaining wall or re-grade a base without understanding load transfer. A wall over 3 feet tall that’s leaning carries real weight, and removing the wrong block can trigger a collapse. If you’re planning the addition itself, that’s permit work with structural, electrical, and plumbing scopes that need a licensed contractor. The smart move is a free site walk with us. We’ll tell you what’s solid, what’s not, and what it costs to do it right. Call (619) 604-9624 and we’ll set a time that works for you. A real person answers, day or night.
FAQs
Techo-Bloc pavers installed over a proper base typically last 25 to 40 years in San Diego’s mild, low-freeze climate. The key variable is drainage. In coastal areas like Point Loma where salt air and moisture are constant, we see paver color fading a bit faster, but structurally the product holds up as long as water isn’t pooling underneath. To be clear: the pavers rarely fail. The base does. Call (619) 604-9624 for an exact quote on your site work.
Yes, in most cases. If the pavers are intact and the issue is settling or edge restraint, we can lift the affected area, re-compact the base, and relay the same pavers, usually saving you 40 to 60 percent versus full replacement. If the wall is leaning, repair is trickier and depends on the degree of movement. Get a free estimate at (619) 604-9624 and we’ll tell you whether repair is worth it.
A full home addition with site work in San Diego typically takes 4 to 8 months from permit to final inspection, and an ADU runs 6 to 12 months. The Techo-Bloc hardscaping portion is usually 1 to 3 weeks once the structure is framed and utilities are in. We give you a written schedule with a defined arrival window, and we hold to it.
We don’t stock pallets of Techo-Bloc on a truck, because every order is job-specific in color and lot. What we do is source directly from Techo-Bloc’s regional distributors in Southern California, usually with a 1 to 2 week lead time. We also work with Belgard and Unilock if a different product line fits the project better, and we match whatever’s already on your property.
Tell me what you need, I’ll tell you what it costs, and we’ll go from there. Call (619) 604-9624 to schedule your free estimate.
Written by Trevor Nash, Owner, Penhallow Remodeling San Diego at Penhallow Remodeling San Diego, serving San Diego and nearby areas.
