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Therma-Tru Fence Installation: The Pasadena Owner’s Guide
Therma-Tru fence installation in Pasadena typically runs $3,500 to $9,000 installed, depending on the length of fence line, the Therma-Tru series you’re matching, and how much of the old post footing survives. We stock the common Therma-Tru post kits and gate hardware on our trucks, so most Pasadena homes are back to a solid fence within one to two working days of the free estimate. Most owners call us after a gate sags hard enough to drag on the concrete, or after a post finally gives way in the wind that funnels through the Arroyo Seco corridor.
Here’s the thing about Therma-Tru fence systems: the door slabs and composite posts are built to take Pasadena’s dry heat without warping, but the hardware and the footing work are what fail first. That’s true whether the fence went in fifteen years ago or five. The product itself holds up. The installation details are where the problems start.
Which Therma-Tru Models This Applies To
Therma-Tru doesn’t make a single monolithic fence line. What we see most often in Pasadena backyards are the composite privacy fence systems paired with their fiberglass-reinforced gate frames, and the matching post sleeves. If you’re holding a gate leaf that’s heavy but not wood and not vinyl, chances are good it’s a Therma-Tru or a Therma-Tru-compatible composite system. The quickest way to identify what you have: look inside the gate frame for a molded label or a stamped series code, usually near the bottom rail. If that label is gone, take a photo of the gate cross-section where the hinge mortise is cut. The wall thickness and the reinforcement ribbing tell us the series faster than any catalog description.
On the OEM versus aftermarket question: Therma-Tru branded post caps, hinge sets, and latch kits are what we recommend when the gate is still square and the problem is hardware. When a post sleeve is cracked or a gate frame has delaminated, a quality aftermarket composite post from a supplier like TimberTech or Fiberon often gives you the same 10-plus year lifespan for less money, as long as the structural core is pressure-treated and set to code. We’ll show you both prices on the written estimate. You decide, and the price doesn’t change after that unless you change the scope.
Styles & brands we work with
Signs Your Therma-Tru Fence Installation Is Failing
- The gate drags or won’t latch. This is almost never the slab itself. It’s the hinge side post leaning out of plumb because the footing was poured too shallow or without enough concrete mass for Pasadena’s clay soil, which expands and contracts with every wet winter and dry summer.
- The post wobbles when you push it. Water got into the post base, or the original installer set the post in soil instead of concrete. In Bungalow Heaven especially, we pull posts set in dirt more often than anyone would guess.
- The composite slat has pulled loose from the rail. UV cycling through Pasadena’s long summers eventually fatigues the screw seats on older Therma-Tru slats. The fix is often a simple re-fasten with stainless screws and a touch of color-matched sealant, not a full panel replacement.
- The gate leaf is sagging but the post is plumb. The hinge reinforcement plate inside the gate frame has worked loose. This is a known wear point on fiberglass-reinforced gate frames that take daily use from kids and dogs.
- You see cracking at the post cap or sleeve seam. That’s thermal cycling, not product failure. But if water gets behind that crack and sits, the post core rots from the inside. We call it the quiet failure, because you can’t see it until the post snaps at ground level.
See the difference
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After
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AfterReplacement Cost & What’s Included
For a typical Pasadena residential fence line of 50 to 80 linear feet with one gate, plan on $3,500 to $9,000 installed. The low end covers a gate hardware refresh and a few post resets on an otherwise sound fence. The high end covers full panel replacement, new Therma-Tru-compatible composite posts with code-depth concrete footings, a new gate frame, and new hardware throughout.
What drives the range: the length of fence line, how many posts need new footings, whether the old concrete has to be jackhammered out, and the Therma-Tru series you’re matching. Every quote we write in Pasadena breaks down the materials line by line, the labor line by line, and the disposal. You’ll see it all before we start. We pull the permit when the city requires one, which in Pasadena it generally does for any fence over six feet along a side or rear property line. The 365-Day Done Right Promise covers the install: if the gate settles out of plumb or a post moves within that first year, we come back and make it right, no invoice.
| Work Scope | Typical Pasadena Installed Range |
|---|---|
| Gate hardware refresh (hinges, latch, post caps) | $600 – $1,400 |
| Single post reset with new concrete footing | $400 – $800 per post |
| Partial fence line replacement (25-40 linear ft) | $2,500 – $4,500 |
| Full fence & gate replacement (50-80 linear ft) | $3,500 – $9,000 |
DIY or Call Us?
There are a few things you can check yourself before you pick up the phone. Is the hinge post actually moving, or is the gate leaf just sagging on its hinges? Can you see whether the post base is set in concrete or in dirt? Does the latch strike still line up, or has it drifted? Those observations help us give you a firmer number on the first call.
Here’s where DIY goes sideways on Therma-Tru fence work: resetting a post. It’s not a dangerous job the way a garage spring is, but it’s a two-person job that requires getting the post perfectly plumb in two planes, setting it in the right volume of concrete for Pasadena’s expansive soil, and waiting a full cure before re-hanging the gate. Get the plumb line two degrees off and the gate will never latch right again. We’ve been called out to redo more than one homeowner-reset post in the San Gabriel Valley, and it always costs more to fix the second time than to do it right the first. If the fence section is short and you have patience, sure, take a swing at the gate hardware. Call us for anything involving a post footing. Graham Stein has been swinging a hammer on Pasadena jobs since trade school, and he’ll tell you the same thing on the estimate visit. The price you see on paper is the price you pay at the end – no footnotes.
FAQs
A properly installed Therma-Tru-compatible composite fence in Pasadena lasts 20 to 30 years on the panels and gate slabs, with hardware replacement every 8 to 12 years depending on use and how much direct afternoon sun the gate takes near the foothills. Call (626) 714-2992 and we’ll assess exactly where your fence is in that lifespan.
In most cases, no. If the post has rotted at ground level or the composite sleeve is cracked through, the post gets pulled and replaced with a new footing. If the wobble is from a loose bracket and the post is still sound, we can repair it in a couple of hours. Call (626) 714-2992 and we’ll tell you which situation you have during the free estimate.
Most Therma-Tru fence replacements in Pasadena take one to two working days for the pull, footing work, and new panels. If we’re pouring new footings, we let them cure overnight before setting the panels the next morning. Call (626) 714-2992 for a schedule based on your specific fence line.
We keep the common Therma-Tru-compatible gate hinges, latch sets, post caps, and shims on the truck, so hardware repairs are usually done the same visit. For full panel and post replacements, we order to match your series, which adds a few business days for delivery in the Pasadena area. Call (626) 714-2992 and we can confirm what’s in stock for your specific model.
When we work on a fence in Pasadena, we protect what’s around it the same way we would on a kitchen remodel. Drop cloths laid on the patio or walkway when the old post comes out. Shoe covers at the back door if we need to pass through the house to reach the yard. Quiet tools during nap hours if there’s a little one sleeping, and pet-safe products where there’s a choice. The crew takes a photo of the clean-up before we leave, and you get a copy of that photo with your invoice. You’ll never have to wonder what the yard looked like when we packed up the truck.
If you have a Therma-Tru fence that’s sagging, wobbling, or failed at the post, call (626) 714-2992 to schedule a free estimate. We also work with other named-brand systems around the house, including KraftMaid cabinets, Cambria countertops, and Silestone surfaces, so the same crew you trust with the fence can handle the rest of the home when you’re ready. A live person answers the phone, any hour.
Written by Graham Stein, Owner, Elmstead Remodeling Pasadena at Elmstead Remodeling Pasadena, serving Pasadena and nearby areas.
