Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Techo-Bloc Fence Installation: The Sherman Oaks Owner’s Guide
Techo-Bloc fence installation in Sherman Oaks typically runs $3,500-$9,000 for a complete vinyl or aluminum system, depending on linear footage, terrain, and whether we’re anchoring into hillside grade or flat Valley floor. We stock Techo-Bloc-compatible posts, rails, and hardware for same-day starts on most standard heights. Most Sherman Oaks owners realize something’s wrong when panels start leaning toward Ventura Boulevard after a Santa Ana wind event, or when the locking mechanism on a privacy gate won’t catch anymore.
Which Techo-Bloc Models This Applies To
Techo-Bloc produces fence systems under several series names, and the part you need depends on which generation you have. The Allegro aluminum line uses 2″ x 2″ posts with a proprietary bracket system that changed in 2019, so a 2017 Allegro post won’t accept current rail brackets without an adapter plate. The Aztek vinyl privacy series comes in 6′ and 8′ panel widths, but the 8′ version uses a heavier 5″ x 5″ post with steel reinforcement, not the standard 4″ x 4″. Check the inside face of your end post for a stamped date code and series name; if it’s faded, measure the post width and rail height, and we’ll cross-reference.
We source OEM Techo-Bloc hardware direct from their Northeast distribution network, but for posts and panels we also use a Sherman Oaks-tested aftermarket equivalent from Ameristar and Jerith when the lead time on Techo-Bloc factory stock runs past two weeks. The aftermarket rails meet the same ASTM F964 tensile spec, and we’ve installed both side-by-side on duplex properties in the Magnolia Woods area without visible mismatch. We always note the source on your written quote so you know before we order.
Signs Your Techo-Bloc Fence Installation Is Failing

- Posts leaning at the base, especially after rain. Sherman Oaks has pockets of expansive clay soil near the foothills that heaves when wet and shrinks in dry months. A post set in a standard 24″ hole with bagged concrete will loosen over two to three wet-dry cycles. We set to 30″ minimum and use a gravel drainage bed.
- Rail popping out of the bracket. The snap-lock on vinyl rails fatigues faster in direct sun, and the San Fernando Valley UV exposure is more severe than Techo-Bloc’s Montreal test climate. Once the tab cracks, the rail won’t stay seated under wind load.
- Gate sagging and dragging. The hinge-side post carries the full gate weight; if the post wasn’t plumb during install, the hinge bolts wallow out the mounting holes. We see this most on 6′ privacy gates over 42″ wide that should have had a wheel or a heavier post spec.
- Panel gaps widening or shrinking seasonally. Vinyl expands roughly 1/8″ per 10 feet per 20°F temperature swing. A tight install in July will buckle by January if expansion gaps weren’t left at the brackets. We measure ambient temperature at install and adjust gap width accordingly.
- Corrosion staining at aluminum post bases. Galvanic reaction between the aluminum post and the steel anchor bolt happens when the isolation washer fails or was omitted. The white bloom you see is aluminum oxide; left alone, the post wall thins and the bolt hole elongates.
Before
AfterReplacement Cost & What’s Included
| Scope | Price Range |
|---|---|
| Single post replacement (vinyl or aluminum) | $350-$650 |
| Rail and bracket replacement, per 6′ section | $280-$520 |
| Gate rebuild on existing posts | $600-$1,400 |
| Complete fence replacement, 100 linear feet | $3,500-$9,000 |
The $3,500-$9,000 range for full replacement covers removal and haul-away, new posts set in gravel-bedded concrete, panels or pickets, hardware, and a walkthrough with the documented photo record before we leave. Hillside installs with retaining-wall integration, common north of Mulholland Drive, run toward the upper end. Under Clause 1 of the Haven Standard, you get the written price before anyone digs, and no change order moves forward unsigned. Our 365-Day Done Right Promise covers workmanship; manufacturer defects are handled through Techo-Bloc’s own warranty, which we file for you.
DIY or Call Us?

There’s nothing dangerous about fence work the way there is with electrical or garage-door springs, but there are two places DIY goes wrong in Sherman Oaks. First, post depth: most homeowners stop at 24″ because the auger rental is sized for that, but our soil conditions need 30″ minimum with a 6″ gravel base, or the post leans within eighteen months. Second, plumb and line: a post that looks straight by eye can be 2″ out at 6′ height, and that error compounds across a run. We’ve torn out three-year-old DIY installs in the Chandler Estates area where the owner spent more on materials than our installed price would have cost.
What you can safely check: tap posts with a rubber mallet to feel for movement, inspect brackets for cracked tabs, and verify your gate hinge bolts are tight. If anything moves, call (213) 221-0788 and we’ll schedule a free estimate with a written scope. Measure twice, write it down, then build it.
FAQs
Vinyl posts and rails typically hold 20-25 years in the San Fernando Valley, though the UV-stabilized cap layer starts chalking after 12-15. Aluminum systems last 30-plus if the powder coat isn’t compromised by impact or abrasion. Call (213) 221-0788 for an exact quote on replacement or refresh - estimates are free.
Isolated rail, bracket, or single-post failures are repairable if the adjacent structure is sound and the original series is still in production. We won’t know until we inspect post embedment depth and check for hidden rot or corrosion. Call (213) 221-0788 for an exact quote - estimates are free.
A single post or rail swap is usually same-day, two to four hours. A full 100-linear-foot replacement runs three to five days depending on access, slope, and whether we’re matching an existing neighbor’s line. We deliver a written schedule with the quote, not after.
We carry standard 4″ x 4″ and 5″ x 5″ vinyl posts, 2″ x 2″ aluminum posts, and the full bracket set for Allegro and Aztek series on our Sherman Oaks warehouse shelf. Specialty colors or the 8′ Aztek reinforced post may need a two-day order from distribution. We’ll confirm stock when you call.
Written by Grant Rowan, Owner, Rowan Construction Group Sherman Oaks at Rowan Construction Group Sherman Oaks, serving Sherman Oaks and nearby areas.







Before
After
Before
After
Before
After