Tremron Home Additions & ADU Nationwide

Tremron Home Additions & ADU: The Riverside Owner’s Guide

If you’re pricing a Tremron home addition or ADU in Riverside, expect the project to land between $45,000 and $130,000 for a standard addition, with detached ADUs typically running $90,000 to $220,000 depending on size, foundation work, and utility runs. Those are the numbers we put in writing before any work starts. Tremron manufactures concrete pavers, retaining wall blocks, and patio stones, so when we build an addition or ADU, we’re often matching Tremron hardscape around the new foundation, walkways, or an attached patio. You usually discover the need two ways: either a real estate inspection flagged your existing Tremron hardscape as settled or cracked near the planned addition, or you’re adding square footage and want the new concrete work to tie into existing Tremron pavers without a visible seam. Trevor Nash has seen both plenty of times across Riverside, especially in the Arlington neighborhood where older slabs and clay soil don’t always cooperate.

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Which Tremron Models This Applies To

Tremron’s product lineup centers on concrete landscape pavers, segmental retaining wall blocks, and paver systems, and the home additions & ADU work we do involves several of their lines. The most common in Riverside are the Tremron Charleston and Vienna paver series for patios, the Stonewall and Diamond retaining wall blocks for grade changes, and their Holland and Olde Towne pavers for driveways and walkways. Identifying what you have is straightforward: flip over a loose paver and look for “Tremron” stamped on the underside, or measure it. Charleston pavers run 6×9 inches, Vienna runs 6×6, and most Tremron units are either 60mm or 80mm thick. The 80mm units hold up better for vehicular traffic, which matters if the addition extends your driveway or you’re running a path to a new ADU entrance. When it comes to OEM versus aftermarket, Tremron pavers are not like appliance parts with a serialized SKU; matching means confirming the color blend (they shift slightly by batch) and the thickness. We always recommend pulling from the same color lot if you have leftover pavers from the original install. If you don’t, we order direct through a Tremron distributor in the Inland Empire and match by the current batch’s color code, which is still the closest you’ll get without repaving the whole area.

Signs Your Tremron Home Additions & ADU Is Failing

• Settled pavers around the foundation line. Riverside’s clay-heavy soil expands and contracts with moisture, and if pavers were laid over poorly compacted base, they’ll sink within two or three rainy seasons. The fix is pulling the affected area, re-compacting the base, and re-laying the same Tremron units.
• Gaps opening between pavers and the house. Once you see a finger-width gap, water is getting in. That’s the beginning of base erosion, and it’ll get worse every time it rains. This is especially common on older Arlington-area homes where the original hardscape was laid before drainage was handled properly.
• Efflorescence or white chalky film that won’t rinse off. A light haze is normal for concrete pavers, but persistent white crust means moisture is wicking up from below, which points to a drainage or base problem rather than a manufacturing flaw.
• Retaining wall blocks leaning or bowing out. If you’re building a hillside ADU in Riverside and the existing Tremron Stonewall blocks are starting to lean, the wall wasn’t engineered for the load. You can see this happen over 18 to 24 months as backfill pressure builds.
• Cracked pavers along vehicle paths. If your addition extends a driveway and the existing 60mm pavers are cracking under car weight, they were never rated for that traffic. This is where swapping to 80mm Tremron units or a different pattern makes sense.

Replacement Cost & What’s Included

For Tremron home additions and ADU work in Riverside, the installed cost depends on what’s being done. If we’re lifting and re-laying an existing paver patio alongside the addition, that’s typically part of the $45,000 – $130,000 addition budget rather than a separate line item. Standalone hardscape replacement tied to an ADU build, meaning new pavers, base material, and edge restraint, usually runs $15 – $28 per square foot installed depending on the Tremron pattern and whether we’re cutting around utilities. What drives the price up: poor existing drainage that needs regrading, decomposed granite or soil that has to be excavated down 6 to 8 inches instead of 4, and access constraints in tight Riverside backyards. Every job is written up with a fixed price before any work starts, the number on day one is the number on the invoice, and the work is covered by our 365-Day Done Right Promise. If a paver shifts or a wall block fails within the guarantee period, we return and fix it at no charge.

DIY or Call Us?

Matching Tremron pavers or wall blocks yourself is doable for a small repair, but there’s a real gap between “doable” and “done right.” You can check things safely on your own: look at the underside of a loose paver for the Tremron stamp, measure the thickness, and note the color blend name if you kept the original paperwork from the builder or dealership. What goes wrong with DIY is the base work. Most Riverside additions and ADUs fail at that paver level because the base wasn’t compacted correctly, and once pavers start sinking, fixing one means pulling a whole section. You also run the risk of ordering a mismatched color lot that looks noticeably different when the sun hits it. If you want the new work to tie into the existing Tremron hardscape without a visible patch job, call (341) 895-1170. We do this the way Trevor does everything: give you a number before we pick up a tool, that’s just how this works.