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Therma-Tru Fence Installation: The Sherman Oaks Owner’s Guide
Therma-Tru fence installation in Sherman Oaks typically runs $3,500-$9,000 for a complete vinyl system, with most residential projects falling in the $5,500-$7,500 range depending on linear footage and terrain. We stock Therma-Tru-compatible posts, rails, and gate hardware, and we can usually schedule installation within a few business days once the written quote is approved. Most Sherman Oaks homeowners first notice a problem when posts lean after winter rains or when panels start separating at the rail connections - both signs the installation substrate or the fastening system is giving way.
Which Therma-Tru Models This Applies To
Therma-Tru markets its fence line as Tru-Guard and Tru-Guard Pro vinyl systems, not under the same brand umbrella as their entry doors. The product label is usually stamped on the inside face of the bottom rail or on a small tag embedded in the post cap. If you’re trying to match an existing installation, measure the wall thickness of the hollow vinyl post - Tru-Guard standard uses .065-inch wall thickness, while Tru-Guard Pro steps up to .090-inch for wind-load zones like the Santa Monica Mountains foothills above Sherman Oaks.
We’ve also encountered hybrid jobs where a previous installer mixed Therma-Tru rails with generic posts, or vice versa. The rail brackets are proprietary to the wall thickness, so a .065 bracket on a .090 post creates a sloppy fit that loosens within two seasons. We carry both gauges on our trucks, and we’ll measure what you have before quoting - no guesswork. OEM Therma-Tru components run about 15-20% above quality aftermarket equivalents from Westbury or CertainTeed, but they lock together cleaner and the color match is exact. For a repair on a visible front-yard fence in the Magnolia Woods area, that color consistency usually wins. For a side-yard privacy screen behind a Ventura Boulevard rental, aftermarket often makes more sense.
Signs Your Therma-Tru Fence Installation Is Failing

- Posts lean or rock at the base. In Sherman Oaks, the clay-heavy soil along the Sepulveda Basin holds water differently than the sandier grades up toward Mulholland. A post set without proper drainage gravel or below the 24-inch frost line (yes, we get light frosts) will loosen as soil expands and contracts. The post itself may be fine; the installation method failed.
- Rail connections pop loose or sag. Therma-Tru uses a snap-lock rail bracket with a stainless steel insert. If the insert corrodes - common within five years if the installer used non-galvanized fasteners - the rail drops out of tension and the panel goes slack.
- Gate drags or won’t latch. Gate posts carry dynamic load every time the gate swings. Without a steel or aluminum reinforcement insert inside the vinyl post, the post torques slightly with each use. After a few hundred cycles, the latch and hinge alignment drifts beyond adjustment range.
- Discoloration or chalking concentrated at seams. This isn’t sun damage to the vinyl itself; it’s water wicking through a failed rail joint and carrying minerals to the surface. The joint is the problem, not the panel.
- Wind whistles through gaps that weren’t there before. Pickets lock into rails with a friction fit. If the rail channel has widened from thermal cycling or UV fatigue, pickets shift and gaps open. Sherman Oaks sees 90°F summer days and 40°F winter nights; that 50-degree swing stresses the expansion joints.
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For a full Therma-Tru fence installation in Sherman Oaks, expect $3,500-$9,000 installed. A 60-linear-foot backyard privacy fence with two gates typically lands around $6,200. The range breaks down like this: standard-grade Tru-Guard material runs $18-$24 per linear foot, Tru-Guard Pro $26-$34, plus $400-$650 per gate for hardware and reinforcement. Labor includes layout, post-hole digging to 24-inch depth with gravel drainage base, concrete setting, panel and rail assembly, and final alignment.
What moves the number: slope correction (Sherman Oaks has plenty of it), rock or root obstructions requiring pneumatic digging, and permit requirements - the city requires a permit for fences over 6 feet or within 10 feet of a corner lot intersection. We pull the permit, handle the inspection, and include that in the written scope. Under Clause 1 of the Haven Standard, the price you sign is the price you pay; no change order gets written unless you request a change. Every job carries our 365-Day Done Right Promise and a documented photo record of post depths, concrete pours, and final measurements.
DIY or Call Us?

There’s no high-tension danger in fence work, but there are plenty of ways to build yourself a problem. A homeowner can safely check whether a post is loose by rocking it by hand and looking for soil disturbance at the base. You can also verify your model by reading the rail stamp with a flashlight. What goes wrong fast: digging near gas lines or sprinkler runs (common in the older Sherman Oaks lots off Dickens Street), mixing concrete to the wrong slump so posts lean during cure, or setting posts without a laser level and ending up with a fence that looks straight until you step back twenty feet.
We bring a Ditch Witch MT12 for tight access, a gas line locator, and a crew that has set posts in Sherman Oaks clay long enough to know when to add drainage and when to switch to a concrete collar. If you’ve already got a written estimate from another contractor, we’ll review it line by line at no charge - that’s our Free Second Opinion. Call (213) 221-0788 to schedule.
FAQs
Properly installed Tru-Guard vinyl lasts 20-30 years in the San Fernando Valley climate. The UV stabilizer in the cap stock resists the intense south-facing exposure common on Sherman Oaks hillside lots, but the substructure - posts, concrete, drainage - usually fails first. Call (213) 221-0788 and we’ll inspect what you have.
Isolated rail or post replacement is viable if the original installation was sound and the damage is limited to one or two sections. If posts are leaning system-wide, the footing method was wrong and patching rails won’t fix it. We assess on site and quote both options. Call (213) 221-0788 for a free estimate.
A standard 60-linear-foot residential job takes two to three working days in Sherman Oaks, including permit inspection if required. First day: layout, digging, and concrete setting. Second day: rail and panel assembly after concrete cures. Gates and hardware finish on day three. Call (213) 221-0788 to check our current schedule.
We stock Tru-Guard and Tru-Guard Pro posts, rails, and gate hardware on our trucks for standard colors - white, tan, and clay. Specialty colors or the woodgrain embossed series order in 7-10 business days. For repairs, we can usually match from stock and complete within a week. Call (213) 221-0788 to confirm color availability.
We also stock and install parts for KraftMaid cabinetry, Cambria countertops, and Silestone surfaces - the same sourcing discipline applies: we quote what we can get, when we can get it, at a price we put in writing before anyone starts.
Measure twice, write it down, then build it. That’s how we’ve kept projects within a few percent of the agreed price across 4,000-plus jobs since 2007.
Ready for your written estimate? Call (213) 221-0788 to schedule your free, line-item quote for Therma-Tru fence installation in Sherman Oaks. We’ll bring the color samples, measure your layout, and email you a scope with every part named and every hour accounted for - before any work starts.
Written by Grant Rowan, Owner, Rowan Construction Group Sherman Oaks at Rowan Construction Group Sherman Oaks, serving Sherman Oaks and nearby areas.







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