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Unilock Construction in North Tustin, CA | Alder Contractors
We’re Alder Contractors, an independent Unilock service provider working across North Tustin’s unincorporated neighborhoods. We install and repair Unilock pavers, walls, and driveway systems on the large, sloped lots that define this part of Orange County. What sets our Unilock work apart here is simple: we know the County of Orange permit process and the hillside drainage realities that most contractors from incorporated cities never deal with. Call (833) 467-7020 for a free estimate on your Unilock project.
Why North Tustin Residents Choose Us for Unilock Service
We’ve spent over a decade working on Unilock hardscapes in North Tustin, and that experience matters when your half-acre lot sits on expansive soil with a septic system and a private road out front. Nelson Ibarra, our owner, grew up learning construction from his father, a drywall finisher, and he built his reputation on framing that stays square and finishes that hold up. That same discipline carries into every Unilock driveway and patio we touch. We’re not a manufacturer-authorized dealer; we’re better than that in one key way. We tell you when a repair is worth doing and when a rebuild is the smarter money. We use genuine Unilock pavers and wall blocks for replacements so color and dimension always match, and we pair them with quality base materials and polymeric sands that perform under North Tustin’s specific conditions. Call (833) 467-7020 to talk through your project.
Styles & brands we work with







Common Unilock Construction Problems We Solve in North Tustin
- Efflorescence and salt migration on Brussels Block pavers. North Tustin’s many wells produce water with mineral content that leaves white deposits on pavers during wet winters. We clean the surface and adjust the joint sand or drainage so the salts stop wicking through.
- Paver shifting and settlement on sloped driveways. Expansive soils here move with moisture. If the original base wasn’t compacted properly, you get dips, lippage, and uneven joints. We rebuild with proper compaction and, where needed, geogrid reinforcement.
- Estate Wall leaning or block separation on hillside lots. Poor drainage behind retaining walls is the usual culprit in North Tustin. Water builds up after winter rains and pushes the wall forward. We repair by addressing the drainage first, not just restacking blocks.
- Surface spalling and color fade on Richcliff pavers. Santa Ana summers bake the surface, and wildfire ash settles into the pores. We replace damaged units with matching genuine Unilock pavers and recommend sealing where exposure is worst.
- Failed base under older Unilock patios from the 1970s construction era. Many North Tustin homes got patios as afterthoughts with thin bases. We pull them, regrade, and reinstall for drainage that works on sloped lots.
Unilock Service in North Tustin: What Local Conditions Mean for Your Equipment
Here’s what most contractors get wrong about North Tustin: it’s unincorporated county territory. That means a Unilock paver driveway or patio project here falls under County of Orange zoning, setbacks, and inspection scheduling, not City of Tustin rules. We’ve seen homeowners assume Unilock in Tustin jurisdiction and end up with a stop-work order because the project actually needed an OC Public Works permit. Private roads add another layer: heavy paver deliveries and concrete trucks have to be coordinated so they don’t crack shared easements or disturb neighbors’ access. On streets off Newport Avenue, for example, tight turn radii and maintained landscaping make a flatbed delivery a real scheduling problem. We handle that coordination as part of the job, not as an afterthought. This is the kind of county-island knowledge that only comes from working here year after year. A contractor based in Tustin or Orange simply doesn’t run into these issues often enough to anticipate them.
Unilock Models & Products We Service in North Tustin
We install and repair the full range of Unilock hardscape products commonly used in North Tustin: Brussels Block, Beacon Hill, Richcliff pavers, and Estate Wall systems. For replacements, we source genuine Unilock units so your existing layout doesn’t end up with mismatched color or dimension, something aftermarket copies always get wrong. For base work and jointing, we use quality aftermarket materials: crushed aggregate base, geotextile fabric, and polymeric sands selected for our specific soil and slope conditions. Our relationship with Unilock runs through our broader work in hardscaping and paver installation. You can learn more about our Unilock sales & service approach on our brand page. For North Tustin homeowners specifically, we keep the most common Brussels Block and Richcliff units locally accessible, which shortens lead times when a repair calls for matching pieces.
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AfterUnilock Service Pricing in North Tustin
Unilock work in North Tustin costs what it costs because of three factors: the pavers themselves, the base work, and the site access. Sloped lots need more prep. Long private drives need delivery coordination. County permits add fees and scheduling time. Here’s where our pricing lands for the most common Unilock projects in this area:
| Service | Typical Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Driveway Replacement | $5,000 – $14,000 |
| Driveway Sealing | $250 – $700 |
Every estimate we give is line-itemed and free. You’ll see the materials, the base work, the permit fees, and the labor separately. No vague lump sums, no change orders that show up later. Call (833) 467-7020 to schedule yours.
Serving North Tustin, CA — Our Local Coverage Area
We’re based in the North Tustin area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Unilock Construction in North Tustin
Most likely yes. Because North Tustin is unincorporated, driveway replacements and significant hardscape work typically require County of Orange permits and inspections. We pull the permits ourselves and handle the inspection scheduling. Call (833) 467-7020 and we’ll verify what your project needs before you spend a dollar.
The white staining is efflorescence, minerals from well water and soil that migrate through the paver and crystallize on the surface. North Tustin’s water chemistry makes this more common here than in nearby cities on municipal supply. We treat it by cleaning the surface and addressing the water source or drainage issue so it doesn’t keep coming back. Call (833) 467-7020 for an evaluation.
Yes, and we repair it correctly. Leaning walls are almost always a drainage problem, not just a block problem. We excavate behind the wall, install proper drainage, and then rebuild with the original genuine Unilock blocks where they’re still sound. If the wall is too far gone, we’ll tell you straight and quote a rebuild. Call (833) 467-7020 and we’ll assess your wall’s condition.
Pavers and wall blocks are non-combustible, which is a plus for defensible space and exterior hardening. But wildfire ash and intense Unilock service in Santa Ana heat take a toll on surface finish over time. We factor in defensible-space compliance and drainage when designing hardscape in North Tustin’s foothill exposure zones. Call (833) 467-7020 to talk through your property’s specific risk.
Most Unilock paver patios in North Tustin run between $3,500 and $11,000, depending on size, access, slope work, and the specific Unilock line you choose. Brussels Block and Beacon Hill land at different price points. Call (833) 467-7020 for a line-itemed estimate on your exact patio footprint.
Service Areas Near North Tustin
We serve North Tustin and the surrounding communities including Orange, Tustin, Santa Ana, and Villa Park. For Unilock work farther out, see our Unilock service in Rancho Santa Margarita page or our Unilock service in La Habra page. You can also learn more about our coverage across the region on our North Tustin service area page.
Book Your Unilock Service in North Tustin Today
We recently rebuilt a failing Unilock Brussels Block driveway on a half-acre lot off Newport Avenue in North Tustin. Poor original base compaction had caused widespread settlement and efflorescence. After pulling the County of Orange permit, our crew removed the old pavers, regraded the slope, and reinstalled with upgraded compaction. That driveway has now survived two rainy seasons without shifting. That’s what we mean when we say we know this area. Do it right the first time; the callback always costs more than the extra hour up front. Call (833) 467-7020 for your free estimate.
Written by Nelson Ibarra, Owner at Alder Contractors, serving North Tustin and the surrounding unincorporated communities for over a decade.