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Therma-Tru Fence Installation: The Houston Owner's Guide
Therma-Tru fence installation in Houston typically runs $3,500 to $9,000 fully installed, depending on fence height, linear footage, soil conditions, and whether you need new footings poured. If you have a Therma-Tru product and you're looking at a failed fence panel, a leaning post, or a gate that won't close, we can usually get a written estimate to you within 48 hours and schedule installation the same week. Most Houston owners discover they need this work after the first heavy rain of spring, when clay soil in neighborhoods like Meyerland, Westbury, and Bellaire shifts enough to loosen posts that were set too shallow the first time.
Here's what matters when you're pricing this job: Therma-Tru is known mainly for doors, but their fence and gate systems share the same fiberglass-composite technology that makes their entry doors resistant to Houston's humidity cycle. The parts we're talking about here are fence panels, post sleeves, gates, and the hardware kits that hold them together. When those components fail, it's almost never the panel itself. It's what's underneath it.
Key takeaways:
- Installed cost in Houston: $3,500–$9,000, written down before we start
- The panel is rarely the problem. It's usually a footing, a post, or a hinge.
- Every job carries our 365-Day Done Right Promise in writing
- We're an independent contractor, not affiliated with Therma-Tru, and we stock compatible OEM and aftermarket parts
Which Therma-Tru Models This Applies To
Therma-Tru's composite fence and gate lineup covers a few distinct series, and you can identify yours by checking the bottom rail of any panel or the inside edge of a gate frame for a molded label. The label shows a series code and a size in inches. If the label is gone, measure the panel width between post centers. Older Therma-Tru fence systems and their gate kits used a 6-foot on-center post spacing. Many of the current composite panels are engineered for that same spacing, but the post hardware changed. If you have a system installed before roughly 2012, the post sleeves are a friction-fit design over a treated 4×4 core. Newer models use a routed channel and bracket system that doesn't transfer water the same way. That matters in Houston, because the older friction-fit sleeves trap moisture against the wood core after a hard rain, and that's what rots the post from the inside while the outside looks fine.
Here's the compatibility gotcha we see most often: the gate hardware kits are not cross-compatible between the older friction-fit and newer channel-mounted series. You can't buy a current-model hinge kit and expect it to mount cleanly on a pre-2012 post sleeve. If you're replacing just a gate on an older run of fence, we'll source an OEM or quality aftermarket kit that matches the original mounting pattern. If the run is mixed, we'll tell you that in the estimate. We don't put a price in writing until we've verified what's actually in your yard.
Styles & brands we work with
Signs Your Therma-Tru Fence Installation Is Failing
- Posts leaning after rain. This is the most common call we get from Meyerland and Westbury. The composite itself is fine; the footing was poured too shallow for Houston's expansive clay, and the post is now moving seasonally. You'll see a visible tilt within 24 hours of a heavy downpour.
- Gate drags on the ground or won't latch. Usually the hinge kit has loosened at the post, or the post itself has tilted. The gate panel rarely bends. If you have to lift the gate to close it, the top hinge is pulling away from the post sleeve.
- Panels popping out of the bottom rail. This happens when the rail channel fills with silt and debris after flooding, then expands. The panel's retaining clip pops under pressure. You'll see a corner of the panel lifted with a visible gap, even though nothing is cracked.
- White chalky streaks running down the panel face. Not mold. It's the post sleeve draining through the panel seam, meaning water has pooled inside the post and is leaching out. The real problem is below grade.
- Loose post caps or warping at the top rail. The Houston sun is hard on composite. If the cap is cracked or the top rail has softened, the structure absorbs more moisture every rain, and the warping gets worse each season.
Replacement Cost & What's Included
Therma-Tru fence installation in Houston runs $3,500 to $9,000 for a typical residential project, and that number is written, not verbal. What actually drives the range comes down to a few honest factors. First, linear footage: a 60-foot run is a far different job than a 240-foot perimeter. Second, what's salvageable. If the existing panels are intact and we're only resetting or replacing posts and hardware, the price lands on the lower end. If we're pulling everything, pouring new footings, and replacing full sections, you're moving toward the top of that range. Third, gate count. Each gate adds $400 to $900 in hardware and proper framing, and a double gate adds more.
Every estimate includes parts, labor, haul-away of old material, and a written scope that says exactly what we're replacing and what we're reusing. We pull permits when they're required, and we don't bury a change order two days in. The number we hand you before work starts is the number on the invoice. Every Therma-Tru fence installation carries our 365-Day Done Right Promise in writing: if it fails inside the guarantee period, we come back and fix it at no charge.
See the difference
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AfterDIY or Call Us?
You can safely check two things yourself. First, look at the post caps: if any are cracked or missing, water is getting in. Second, stand back and sight down the fence line. If you see a post out of plane, that's a footing problem, not a panel problem. What you shouldn't do is try to reset the post yourself. Digging out a failed footing in Houston clay is hard work, but the real risk is setting it too shallow or too narrow for the soil conditions. A post set in clay needs a footing below the shrink-swell zone, usually 24 to 30 inches deep in this area, with gravel at the base for drainage. Most unsuccessful fence repairs around here are done by well-meaning homeowners who set the post in the same hole, packed the same clay back around it, and watched it lean again by the next monsoon season.
If a gate is hanging and the hinge is pulling out of a composite sleeve, there's no lag screw going to hold in softened material. That's a replacement, not a repair. Call Trevor Nash at Penhallow Remodeling Houston at (254) 527-5340 and tell us what you're seeing. Give me the straight story on what you need, and I'll give you the straight number on what it costs.
FAQs
A properly installed Therma-Tru composite fence should last 20 to 25 years in Houston, even with our humidity and clay soil. What fails first is almost always the wood post core inside the composite sleeve, not the panel. If your original installation cut corners on footing depth, you'll see post lean within 3 to 5 years. A correctly poured footing below the clay line changes the whole lifespan. Call (254) 527-5340 for a review of what you have now and an honest take on what can be saved.
No, composite panels are a core-and-skin product and can't be structurally glued or patched. You can sometimes reset a popped panel if the rail channel hasn't cracked, but a warped, cracked, or waterlogged panel needs replacement. The good news is that panel replacement is usually less expensive than people expect, because we're reusing the posts and rails if they're sound.
Most residential jobs are done in 2 to 4 days, depending on length, gate count, and whether we're reusing existing panels or installing new footings throughout. If concrete is involved, we'll build cure time into the schedule and tell you that on day one. You'll know before we start exactly which days we'll be on site.
We keep common OEM and quality aftermarket hardware on the truck: hinge kits, post caps, latch assemblies, and retaining clips. Full panels and post sleeves are ordered per project after we measure your existing system. If you need a whole fence replaced rather than a part swapped, we'll confirm material availability in writing before we schedule the install.
Written by Trevor Nash, Owner, Penhallow Remodeling Houston at Penhallow Remodeling Houston, serving Houston and nearby areas.
Get a Written Estimate for Your Therma-Tru Fence Installation
If your fence is leaning, dragging, or showing water damage, don't guess. Call Penhallow Remodeling Houston at (254) 527-5340 and tell us what you're seeing. We'll schedule a walk of your fence line, identify the actual failure, and hand you a written price before any work starts. The number on day one is the number on the invoice, and the warranty is in writing. We'll also tell you which parts we're reusing and which need to go. Free estimate, background-checked and uniformed technicians, and a live person on the phone 24/7.
