Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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Before
AfterUnilock Fence Installation: The San Diego Owner’s Guide
Unilock fence installation in San Diego typically runs $4,130-$10,620 for a complete residential system, depending on linear footage, substrate condition, and whether we’re anchoring into existing hardscape or cutting new footings. We stock Unilock-compatible posts, rails, and panel connectors for same-day starts on most standard heights. Most San Diego owners first notice trouble when a post leans after winter rains saturate the clay-heavy soils in neighborhoods like Del Mar Heights or Rancho Bernardo, or when the powder-coated aluminum rail separates from its bracket after years of salt air exposure near the coast.
Which Unilock Models This Applies To
Unilock’s fence line breaks into three families, and the part you need depends on which system was originally installed. The Moda series uses a 2-inch square aluminum post with a concealed base plate and snap-fit rail brackets; the Vertica series employs a heavier 3-inch post with face-mounted brackets and a wider rail profile; and the Horizon privacy panels hang from a top-and-bottom rail system with proprietary clip hardware. The model stamp is usually laser-etched on the post interior, visible once you remove the snap-on base cover or the top cap.
We carry OEM Unilock posts and rails in white, bronze, and black for all three series, plus aftermarket equivalents from Specrail and Ametco where the lead time on factory-direct runs long. The aftermarket rails match Unilock’s 1.5-inch wall thickness and 6005-T5 alloy spec, but the bracket hole spacing can drift by 1/8 inch on older Moda production runs from 2014-2017. We measure on site before ordering, because a 1/8-inch mismatch on a 6-foot span turns into a visible gap once the rail expands in afternoon sun.
Grant Rowan keeps a set of Unilock’s 2015-2023 installation manuals in the truck for cross-referencing part numbers that have been superseded. If your fence was installed by a previous owner without records, we can usually identify the series from bracket geometry and post wall thickness alone.
Signs Your Unilock Fence Installation Is Failing
- Post lean or wobble at the base. In San Diego’s canyon-cut neighborhoods like Scripps Ranch and Tierrasanta, expansive clay soils swell when winter storms saturate the ground, then shrink in dry summers. This cycle gradually tilts posts that were set with standard concrete footings rather than the deeper pier-and-bracket method Unilock specifies for seismic zones.
- Rail separation from brackets with visible gap. The thermal expansion coefficient of aluminum rail against a steel bracket creates micro-movement with every temperature swing. Coastal properties from La Jolla to Point Loma see this accelerate when salt crystallizes in the joint, effectively grinding the rail end down over five to seven years.
- Panel rattle or buzz in wind. Unilock’s clip system relies on a nylon insert that dampens vibration. Once that insert UV-degrades, which happens faster in San Diego’s high-sun exposure than the manufacturer rates for Midwest climates, the metal-on-metal contact becomes audible and will eventually oval out the mounting holes.
- Gate sag or latch misalignment. The gate frame is essentially a moving part in a fixed system. When the hinge post settles even 1/4 inch, the latch pin no longer meets the strike plate. We see this most often on hillside properties in Mission Hills or University Heights where the gate was hung before the surrounding grade fully compacted.
- Corrosion blooming at post base or bracket fasteners. Unilock’s powder coat holds well, but any field-cut rail end or bracket notch that wasn’t re-sealed exposes bare aluminum. In beach-adjacent ZIP codes, we’ve replaced posts that failed from the inside out after six years because the installer skipped the touch-up paint step.
Before
AfterReplacement Cost & What’s Included
Complete Unilock fence installation in San Diego falls between $4,130 and $10,620, with most single-family projects landing in the $5,900-$7,800 range for 80-120 linear feet of 4-foot height on level grade. The table below breaks out what drives that spread:
| Cost Driver | Lower End | Higher End |
|---|---|---|
| Linear footage & height | 80 ft, 4 ft high | 150+ ft, 6 ft high |
| Substrate condition | Level, compacted soil | Cut/fill, rock, or existing failed concrete |
| Footing depth & method | Standard 24″ concrete | 36″ pier with seismic bracket, per San Diego’s Chapter 18 amendments |
| Finish hardware | Standard latch, one gate | Self-closing hinges, mag latch, multiple gates |
| Access & haul-away | Open yard, no demo | Tight access, existing fence removal & disposal |
Our quotes are flat prices with written scope, not estimates that balloon. Under Clause 1 of the Haven Standard, you get the full number before anyone digs. That price includes Unilock-compatible materials, labor, concrete or pier footings as specified, permit pulling if required by your San Diego jurisdiction, and haul-away of the old system. The 365-Day Done Right Promise covers the installation; manufacturer defects on Unilock OEM parts are handled through their warranty, which we document and file on your behalf.
DIY or Call Us?
There’s a short list of checks any owner can make safely. Verify the post is plumb with a 4-foot level. Tighten visible bracket bolts with a socket set, don’t over-torque. Look for the model stamp inside the post. These three steps tell you whether you’re dealing with a loose fastener or a failed footing, and they cost nothing but time.
Where DIY goes wrong is anything involving footing excavation or gate re-hang. Post extraction in San Diego’s decomposed granite or clay soils requires a breaker bar or mini-excavator and knowledge of buried utility locations, a free 811 call that too many skip. Re-hanging a gate on a settled post without first addressing the footing guarantees the same failure in six months. And any field cut to a rail or post must be touched up with Unilock’s specified primer, or the 20-year corrosion warranty is void from day one.
We carry the tools, the touch-up kits, and the permit knowledge. Call (858) 434-8926 and we’ll measure twice, document once, then we can talk price.
FAQs
Properly installed Unilock aluminum fencing lasts 20-30 years in San Diego’s climate, though coastal properties within two miles of the ocean should expect closer to 15-18 years on hardware and 20-plus on structural posts if the powder coat was maintained. The nylon dampening inserts typically need replacement at year 8-12 due to UV exposure that exceeds Midwest design assumptions. Call (858) 434-8926 for an exact quote on insert replacement or full system refresh, estimates are free.
Individual posts, rails, or gate frames can be repaired or swapped if the original series is still in production and the failure is isolated to one component. We do not recommend partial replacement when the failure mode is systemic, such as footing settlement affecting multiple posts or UV degradation across all nylon inserts, because the repaired section will outlast the remainder and you’ll pay for mobilization twice. We assess this on site and put both options in writing. Call (858) 434-8926 to schedule.
Most residential Unilock fence installations in San Diego take one to three working days, depending on linear footage, footing conditions, and whether we’re removing an existing system. Permit approval adds three to ten business days in the city of San Diego, faster in some of the smaller incorporated jurisdictions. We schedule starts only after permits are in hand, because Clause 1 of the Haven Standard means no work proceeds without documented authorization. Call (858) 434-8926 to check current lead times.
We stock Unilock-compatible posts, rails, brackets, and hardware in white, bronze, and black for the Moda, Vertica, and Horizon series on our San Diego warehouse truck. Specialty colors or the full privacy slat kit for Horizon panels typically order in with a five-to-seven-day lead time. If your failure is structural and security-sensitive, we can install a temporary stabilization the same day and return for permanent repair once the color-matched part arrives. Call (858) 434-8926 to confirm stock for your series and color.
Written by Grant Rowan, Owner, Rowan Construction Group San Diego at Rowan Construction Group San Diego, serving San Diego and nearby areas.