







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Unilock Construction in Northridge, CA | Sawyer Remodel Santa Clarita
We provide independent Unilock paver installation and repair across Northridge, and the thing that separates our work here is straightforward: we build for expansive clay soil and houses that went through 1994 earthquake retrofits. Most Unilock failures we see in Northridge trace back to base washout or clay movement, not the pavers themselves. So we rebuild the base right the first time and reuse your original stones whenever possible. Call (661) 592-1977 for a free estimate.

Luca Romano and our crew have worked Unilock installations from Reseda to Santa Clarita, and we know how Northridge’s specific ground conditions punish a poorly built base. We’re an independent service provider, not a Unilock factory arm or authorized dealer. That means we answer to you, not to a corporate line. Visit our Unilock sales & service page to see the full scope of what we handle.
Why Northridge Residents Choose Us for Unilock Service

Unilock pavers are only as good as what sits under them. In Northridge, what sits under them is clay that swells when it rains and shrinks during our long dry summers. Most contractors know pavers. Fewer know Northridge soil like a General Contractor in Northridge should. We’ve spent years cutting out failed bases south of CSUN, along residential streets like Calahan, and rebuilding them with proper depth and drainage.
Luca studied construction technology at Los Angeles Trade-Tech and spent years swinging a hammer before running crews. That background shows up in how we approach paver work: we diagnose the base before we ever lift a stone. We source same-model Unilock units from local dealers when replacements are needed, and we keep common jointing sand and edge restraint stock on hand for faster turnaround across the Northridge service area. Written price before work starts, every time.
Styles & brands we work with






Common Unilock Construction Problems We Solve in Northridge
- Base washout and sinking pavers. When a downspout discharges next to a Unilock driveway or patio, winter rain saturates the base. The clay underneath softens, the base shifts, and pavers sink. We lift the affected area, remove the saturated clay, add geotextile and Class II road base, and re-set your stones.
- Cracking on driveway edges. Unilock Beacon Hill Flagstone pavers crack when vehicle loads roll over edges that don’t have enough flex-base depth. Northridge’s expansive clay makes this worse because the subgrade moves seasonally. We re-cut and re-set with proper edge support.
- Joint sand loss and lateral movement. Hot, dry Santa Ana winds strip joint sand from Unilock Courtstone surfaces over time. Pavers lose their interlock and start drifting. We use high-performance polymeric sand that holds up to Northridge’s dry spells.
- Edge restraint failure. Original spike anchors on older Unilock patios corroded or backed out after decades of seismic micro-vibration. Pavers fan outward at the perimeter. We replace with proper aluminum or paver restraints pinned into a compacted base.
- Mismatched repair patches. We regularly see Unilock patios where someone replaced broken stones with big-box pavers that don’t match. Color drifts, texture is wrong, and the repair stands out from twenty feet away. We source same-model Unilock units so the fix blends in.
Unilock Service in Northridge: What Local Conditions Mean for Your Equipment

South of CSUN, in the neighborhoods between Nordhoff and Lassen, a lot of what looks like original 1950s and 60s carports are actually post-1994 enclosed garages. Homeowners took the earthquake retrofit money and turned carports into living space or storage. What that left behind is a mess of narrow side yards poured with new shear wall footings and retrofitted cripple wall bolts sticking out where a walkway should go. Unilock pavers in these yards can’t just be laid in standard patterns. Every stone near the house has to be cut around footing offsets and bolt plates, and the base has to be stepped to meet the new foundation line. Most installers show up with a grid pattern and a saw and make it work. We show up knowing the house probably has a seismic story, and we lay out the job around it.
Our crew saw this firsthand on Calahan Street. A homeowner noticed a section of Unilock Beacon Hill Flagstone driveway sinking near the garage apron. We lifted the affected pavers and found the original base was only two inches of compacted road base over expansive clay. The downspout discharged right there, and everything had washed out. We removed the clay to eight inches, laid geotextile, compacted six inches of Class II road base, re-set the pavers with Unilock jointing sand, and buried a drain line to redirect roof water. Two wet winters later, the driveway is still flat.
Unilock Models & Products We Service in Northridge
We work with the Unilock lines most common across Northridge’s 1950s-70s housing stock: Beacon Hill Flagstone, Courtstone, Richcliff, and Brussels Block. For replacements, we source same-model units from local dealers or salvage yards when color matches allow. We do not use generic non-Unilock stones for repairs. Color, texture, and size drift look wrong. But we do use aftermarket polymeric sand and geotextile for base upgrades, because those are what hold up to Northridge clay.
See the difference
Before
After
Before
After
Before
AfterUnilock Service Pricing in Northridge

Here’s what Unilock work in Northridge typically runs:
| Service | Price Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Driveway Replacement | $5,000 – $14,000 |
What drives the number: how much base has to be rebuilt, whether we’re cutting around shear wall footings or retrofit bolts, drain line work, and how much original pavers can be reused. Your free estimate includes a written line-item quote before any work starts. Call (661) 592-1977 to schedule yours.
Serving Northridge, CA - Our Local Coverage Area
We’re based in the Northridge 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 Northridge
Yes, in most cases we can. We lift the sunken section, remove the failed base, rebuild it properly with geotextile and Class II road base, and re-set your original pavers. Full replacement is only needed when the pavers themselves are broken beyond reuse or when the failure spans most of the driveway. Call (661) 592-1977 for an exact assessment, the estimate is free.
Northridge sits on expansive clay that swells with winter rain and shrinks through the long dry season. That movement flexes any paver base that wasn’t built deep enough or drained properly. We rebuild bases with proper depth and drainage so the clay under your patio stops dictating the surface.
Yes. Many Northridge homes south of CSUN have post-1994 retrofit bolts and shear wall footings right where a walkway belongs. We step the base and cut pavers to fit around footing offsets and bolt plates. We never bury retrofit hardware under pavers, because that blocks access for future inspections. Call (661) 592-1977 and we’ll come take a look.
For driveways, Unilock Richcliff or Brussels Block with a properly compacted base is what we recommend. The paver itself matters less than the base depth and drainage. On Northridge clay, we build with geotextile, six plus inches of Class II road base, and a drain plan that keeps water away from the paver edge. The pavers are the top coat. The base is what survives the wet years.
Yes. We source same-model Unilock Courtstone from local dealers or salvage yards to match color and texture. If the original color has been discontinued, we’ll pull stones from a less visible area of your patio to fill the broken spot and use the closest available match in the hidden section. That keeps the surface you see consistent.
Service Areas Near Northridge
We serve Northridge and the surrounding San Fernando Valley and Santa Clarita communities. Our crews work in Unilock service in Reseda, Winnetka, San Fernando, and up the 405 into Unilock service in Santa Clarita. If you’re within a reasonable drive of Northridge, we can usually help.
Book Your Unilock Service in Northridge Today
If your Unilock patio is sinking, your driveway edges are cracking, or the joint sand is gone, consider our Bathroom Remodeling in Northridge or call (661) 592-1977. We’ll schedule a free estimate, put the price in writing, and make sure the base gets built for Northridge ground, not for the brochure. The work tells the story. We just show up and do it right.
Written by Luca Romano, Owner at Sawyer Remodel Santa Clarita, serving Northridge and the San Fernando Valley.











