Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Tremron Home Additions & ADU: The Carlsbad Owner’s Guide
Tremron hardscape and masonry products used in Carlsbad home additions and ADUs typically run $45,000-$130,000 installed, depending on whether you’re integrating pavers into a new foundation, patio, or driveway extension. We stock and install Tremron-compatible Belgard and Techo-Bloc alternatives when Tremron lead times stretch, and we keep common 60mm and 80mm paver thicknesses in our local inventory. Most Carlsbad homeowners notice a problem when settling or drainage issues appear after winter rains, or when HOA inspections flag surface irregularities in newer additions near Bressi Ranch.
Which Tremron Models This Applies To
Tremron’s product lines for residential additions break into three categories we see in Carlsbad: the Stonehurst series (textured, 60mm thickness, common for ADU walkways), the Olde Towne series (tumbled finish, 80mm, used for load-bearing driveway extensions), and the Mega-Stone line (oversized formats for modern patio integrations). The model number is stamped on the pallet tag, but if that’s gone, measure the paver thickness and note the edge profile. Stonehurst has a chamfered edge; Olde Towne has a tumbled, irregular edge; Mega-Stone is rectilinear with a micro-bevel.
We are an independent service provider, not affiliated with Tremron. For OEM matching, we source through Tremron’s West Coast distributor out of Irvine, but we also stock Belgard Catalina and Techo-Bloc Eva as cross-compatible alternatives when the original series is discontinued or backordered. The gotcha in Carlsbad’s coastal climate: Tremron’s standard color blends from their Florida plant can shift slightly from lot to lot due to aggregate sourcing. We always pull from the same production lot for visible surfaces, and we document the lot number on your invoice. That’s saved three projects in the Rancho Carillo area from mismatched repairs.
Signs Your Tremron Home Additions & ADU Is Failing

- Sunken or tilted pavers near downspout outlets. Carlsbad’s clay-heavy soil in neighborhoods like Calavera Hills expands and contracts with winter saturation. The paver base washes out, and the Tremron surface follows the substrate. We find this most often where roof runoff wasn’t properly routed during the original addition.
- Efflorescence blooming across the surface. White mineral deposits mean moisture is moving through the paver body, usually from a missing or compromised vapor barrier beneath the slab. In ADUs built before 2019, we see this where the original contractor skipped the poly sheeting to save on concrete costs.
- Chipped corners on 60mm pavers in driveway transition zones. Stonehurst and similar 60mm products aren’t rated for vehicle loading. If your addition included a parking pad or RV pad extension, the thinner pavers crack under tire stress. We replace with 80mm Olde Towne or Mega-Stone in those zones.
- Joint sand washing out between pavers. This exposes the bedding layer and accelerates settling. Carlsbad’s Santa Ana wind events blow fine sand out of open joints, and our occasional hard rains finish the job. Polymeric sand helps, but it needs reapplication every 3-5 years in exposed areas.
- Surface spalling or flaking. Freeze-thaw isn’t Carlsbad’s problem, but salt air corrosion is. Tremron pavers within a quarter-mile of the coast, particularly in areas south of Palomar Airport Road, show surface degradation faster than inland installations. The aggregate binder breaks down from chloride exposure.
Before
AfterReplacement Cost & What’s Included
| Scope | Price Range in Carlsbad |
|---|---|
| Paver patio repair / partial reset (under 200 sq ft) | $3,500-$8,500 |
| Full paver driveway extension replacement | $7,000-$18,000 |
| ADU foundation-adjacent hardscape integration | $12,000-$35,000 |
| Complete home addition hardscape package | $45,000-$130,000 |
The range depends on three factors: how much of the base needs excavation and recompaction (we test with a plate compactor and nuclear density gauge), whether we’re matching discontinued Tremron colors (custom tinting adds 15-20%), and permit requirements. Carlsbad requires a building permit for any ADU hardscape tied to the foundation drainage plan, and we pull that permit as part of our scope. Under Clause 1 of The Haven Standard, you get a written price before anyone picks up a shovel. The quote is flat, with line-item breakdown for pavers, base material, labor, and permit fees. Our 365-Day Done Right Promise covers the installation; manufacturer defects on the Tremron or alternative product are handled through the manufacturer’s warranty, which we document on your invoice.
DIY or Call Us?

There’s safe checking, and there’s risky digging. A homeowner can verify paver thickness, photograph the surface damage, and check whether downspouts are dumping water directly onto the hardscape. That’s useful information, and we ask for those photos when you call.
What goes wrong with DIY: excavating a settled area without locating the ADU’s perimeter drain, which in Carlsbad is often a French drain tied to municipal storm systems. Cut that line, and you’re into a $2,000-$5,000 plumbing repair before the paver work starts. Recompacting base material without a plate compactor and proper lift thickness (6 inches loose, 4 inches compacted for pedestrian areas; 8 inches loose, 6 inches compacted for vehicle areas) guarantees the same settling in two years. And matching Tremron’s color lots by eye from a phone photo is nearly impossible; we’ve had to tear out well-meaning homeowner repairs that looked like patchwork.
If you’re seeing any of the five symptoms above, call (858) 815-9080. We’ll schedule a free estimate, bring physical samples, and give you a written price you can screenshot and compare.
FAQs
Tremron pavers last 25-40 years inland in Carlsbad, but coastal installations within a half-mile of the Pacific show surface degradation at 15-20 years from salt air exposure. The structural base typically outlasts the surface finish. Call (858) 815-9080 for an exact quote on refresh versus replacement - estimates are free.
Individual pavers can be lifted and reset if the base is intact, but this works only when you have matching replacement units from the original lot. For widespread settling or spalling, partial replacement is more cost-effective than repeated spot repairs. We document the base condition with photos before recommending either path. Call (858) 815-9080 for a free estimate.
A 200-square-foot patio reset takes 2-3 days including base repair and curing time for polymeric sand. A full home addition hardscape package runs 2-4 weeks, depending on permit turnaround from the City of Carlsbad. We build permit time into our written schedule, not as a surprise. Call (858) 815-9080 to discuss your timeline.
We stock Belgard and Techo-Bloc equivalents in 60mm and 80mm thicknesses at our Carlsbad facility. Tremron-specific colors and the Mega-Stone line are sourced through Irvine with a 5-10 business day lead time. We pull from the same production lot for visible surfaces, and we document that lot number on your invoice. Call (858) 815-9080 to check current inventory.
Grant Rowan’s approach to every estimate follows a discipline he learned framing houses in the San Fernando Valley as a teenager: measure twice, document once, and tell the client before they have to ask. That means if a Tremron color lot is backordered, you know on day one. If the base under your ADU patio needs deeper excavation than estimated, we photograph the condition, write the change order, and get your signature before the next shovel of dirt moves. No surprises, no hand-waving.
Rowan Construction Group Carlsbad also stocks and installs parts for KraftMaid, Cambria, and Silestone products used in home additions and ADUs.
Written by Grant Rowan, Owner, Rowan Construction Group Carlsbad at Rowan Construction Group Carlsbad, serving Carlsbad and nearby areas.







Before
After
Before
After