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Techo-Bloc Home Additions & ADU: The Dallas Owner’s Guide
We install and build home additions and ADUs using Techo-Bloc hardscape products throughout Dallas, and a complete build typically lands between $45,000 and $130,000, depending on square footage, foundation work, and finish level. Most owners reach out when they realize their paver patio, retaining wall, or outdoor living space is failing beneath a planned room extension or when a slab needs proper Techo-Bloc integration before framing begins. You should know who is coming, what it costs, and what happens if something goes wrong before we ever pick up a tool. At Mason Remodeling Co Dallas, you get a written price before work starts, and Isaac Pruett walks every job himself before the first nail goes in.
Which Techo-Bloc Models This Applies To
Techo-Bloc manufactures several paver and wall lines that integrate directly with home addition and ADU projects: the Blu 60 mm and Blu 80 mm pavers for driveways and patio slabs, the Raffinato and Industria series for walkways and courtyard approaches, and the Mini-Creta and Borealis walls for retaining and grade transitions. The compatibility gotcha we see in Dallas: if your existing patio uses Techo-Bloc 60 mm pavers, you cannot simply lay an addition’s slab extension on top of the same base without checking the subgrade compaction. Dallas clay soil expands and contracts, and a 60 mm paver on an uncompacted clay base will shift within two seasons. For structural support under an ADU or addition, we use Techo-Bloc’s thicker 80 mm pavers over a properly engineered base, or we pour reinforced concrete with Techo-Bloc used for finish surfaces only. OEM pavers are worth it here because Techo-Bloc’s color consistency across batches is tighter than most aftermarket equivalents, and you do not want a patio that looks patched.
We also stock and work with KraftMaid cabinetry, Cambria and Silestone surfaces for the interior finish of your Dallas addition or ADU, so the indoor and outdoor work comes from one written scope, not three different subs.
Styles & brands we work with
Signs Your Techo-Bloc Home Addition or ADU Site Is Failing
- Pavers sinking or separating near the existing foundation. This usually means water is getting under the base and eroding the clay subgrade. In Dallas, we see this after long dry spells followed by heavy rain, when clay swells and contracts faster than the paver joints can breathe.
- Visible cracks in a concrete slab where an ADU will sit. Cracks wider than a quarter inch suggest soil movement or a poor original pour. If you frame an ADU over a moving slab, you will chase drywall cracks forever.
- Retaining wall leaning toward the addition site. Techo-Bloc Mini-Creta and Borealis walls hold grade, but hydrostatic pressure behind the wall will push it if drainage was skipped. A leaning wall means water is sitting where it should not be.
- Pooling water against the addition foundation line. Standing water after a normal Dallas rain means the grade is wrong. Over time, that water finds its way under your new addition and brings the problems with it.
- Doors or windows in an existing structure sticking after a wet season. The clay under your home is moving. Before we add square footage, we verify the soil bearing capacity so the new work does not make the old work worse.
See the difference
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After
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AfterReplacement Cost & What’s Included
A full home addition in Dallas runs $45,000 to $130,000, and an ADU build runs $90,000 to $220,000 depending on size, utility runs, and interior finish. The ranges shift based on three things: foundation type (pier and beam versus slab on grade), whether the addition ties into existing walls or stands alone, and how much Techo-Bloc hardscape work the site requires before framing. You get a written, line-item price before any work starts. No surprise invoices, no verbal estimate that becomes a bigger number at the end. Every project carries our written guarantee with terms stated plainly, and our 365-Day Done Right Promise means if the work is not right within a year of completion, we make it right at no cost to you.
DIY or Call Us?
You can safely check a few things yourself: locate standing water after rain, look for paver movement near the foundation line, and note any new cracks with a piece of painter’s tape dated at the edges. You should not attempt to level a Techo-Bloc base, compact clay subgrade, or pour structural concrete for an ADU on your own. The risk here is not just cosmetic. A poorly compacted base under a living space will move, and that movement travels up through the framing and drywall for the life of the structure. We have seen additions that looked fine for 18 months and then started separating at the roofline because the base was never right. Call (432) 302-8761 for a free estimate and we will tell you what your site actually needs.
FAQs
In Dallas, a properly installed Techo-Bloc paver base under an addition should last 25 to 40 years before any significant resurfacing. The failure point is almost never the paver itself; it is the base prep. Call (432) 302-8761 for a site check and a written quote.
Sometimes, if the movement is confined to one area and the subgrade is still stable. If water has been getting underneath for more than a season or two, a full base rebuild is usually cheaper over the long run than chasing repairs. We will tell you which one your site needs after we see it.
Most ADU builds in Dallas take 6 to 12 months from permit to final walkthrough, depending on scope and city inspection schedules. A smaller home addition can run 3 to 6 months. We give you a written timeline with the written price before work starts.
We order Techo-Bloc pavers and walls directly for each project and store them on site once delivery is scheduled, so materials are protected and ready when the crew arrives. We do not keep large inventory in a yard, which means you get the batch and color that matches your existing work. Call (432) 302-8761 to check current lead times for your exact series.
Written by Isaac Pruett, Owner, Mason Remodeling Co Dallas at Mason Remodeling Co Dallas, serving Dallas and nearby areas.
