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James Hardie Fence Installation: The Tampa Owner’s Guide
James Hardie fence installation in Tampa typically runs $3,500 to $9,000 for a full perimeter job, and we carry the HardiePlank lap siding and HardieTrim boards needed to complete it on time. If you’re reading this, you probably have a section of fence that’s rotted, cracked, bowed, or pulling away from its posts – or you’re building new and want fiber cement instead of wood that the Florida humidity will destroy in five years. Most Tampa homeowners call us after a wood fence has failed twice and they’re done replacing pickets every spring. The switch to James Hardie fiber cement is the fix that actually holds.
Which James Hardie Models This Applies To
For fencing, the product that matters is HardiePlank lap siding – specifically the 5/16″ thickness in 6″ or 8″ exposure – along with HardieTrim boards in 1″ or 5/4″ thickness for the rails and top cap. These are the same James Hardie products we install on siding, but cut and installed vertically or horizontally as fence boards. The compatibility gotcha most Tampa homeowners run into: James Hardie does not make a dedicated “fence panel,” so any contractor claiming to install “factory Hardie fence panels” is cutting lap siding to fit. That’s fine when the installer knows the material – the boards are 12′ long, and you cannot butt-splice them like wood. The joints must land on a post or rail, and every cut edge gets painted or sealed. We cut these boards on site with the proper shears and blade, because a rough circular saw cut leaves a frayed edge that wicks moisture and fails early in Tampa’s wet season.
Aftermarket versus OEM matters less here than it does with trim or soffit. HardiePlank is a proprietary fiber cement formula. There’s no generic equivalent with the same density and dimensional stability. We stock the James Hardie brand on our trailer because the manufacturer warranty is worth something to a homeowner who’s been burned by a no-show crew. If a board is defective from the factory, the James Hardie product warranty covers the material. Our labor is covered separately by our written guarantee.
Styles & brands we work with
Signs Your James Hardie Fence Installation Is Failing
- Boards pulling loose from the rails at the bottom. This is almost always a fastener problem – someone used drywall screws or roofing nails instead of the recommended corrosion-resistant siding nails. In Tampa’s humidity, cheap fasteners rust and lose grip within two years. We see it on fences installed by crews that didn’t read the James Hardie fastener spec.
- Swelling or softness at the bottom edge. Fiber cement wicks water if it sits in standing water or contacts soil. A proper James Hardie fence keeps the bottom board 2″ off grade. When a previous installer buried the board in dirt, that bottom 2″ turns spongy and eventually crumbles. The fix is replacement of the affected boards and regrading so water drains away.
- Paint peeling in sheets, not flakes. That’s a sign the board absorbed moisture before painting, or the installer used a cheap exterior paint without a primer rated for fiber cement. HardiePlank needs a primer coat before topcoat. Skip it and the paint film lets go within 18 months in Tampa sun.
- Rails sagging between posts. James Hardie 5/4 HardieTrim rails will span 6′ without issue, but only when installed flat with fasteners every 16″. A rail that was toenailed or spaced too far apart sags visibly – and once fiber cement flexes like that, it cracks. We see this pattern on fences where the former contractor used one screw per joint to save an hour.
- Cracked boards near the post connections. Fiber cement doesn’t flex like wood. If a post shifts even a quarter inch in Tampa’s sandy soil, the rigid board cracks at the fastener instead of bending. The board failure you’re seeing is usually a post failure underneath it. A proper fix means addressing the post, not just swapping the board.
See the difference
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AfterReplacement Cost & What’s Included
In Tampa, a James Hardie fence installation or full replacement runs $3,500 to $9,000, depending on lineal footage, fence height, and whether we’re reusing existing posts or setting new ones. Here’s the line-item breakdown:
- Partial repair (up to 3 sections, boards only): $800 – $1,800
- Partial replacement with new rails (up to half the fence): $1,800 – $4,500
- Full fence installation, new posts and rails, 50-80 linear feet: $3,500 – $9,000
What moves the number is post work. If the existing posts are pressure-treated, set in concrete, and plumb, we can hang new James Hardie boards and rails on them and the job falls at the low end. If the posts are rotted or shifting – common in older Tampa neighborhoods like Seminole Heights – we’re digging new footers, and that adds concrete work and labor. Every bid you get from us is a written, line-itemed price before any work starts. The number we give you is the number you pay at close-out. No revised invoice because “the crew hit a snag.” That’s the whole point of operating under The Garrison Standard.
DIY or Call Us?
You can identify a failing board yourself: knock on every board with your knuckle and listen for a dull, hollow sound instead of a sharp rap. That tells you where the fiber cement has lost its bond. You can also run a hand along the bottom edge and check for soil contact or softness. What you should not do is start pulling boards off a fence that shares posts with a gate. That’s a real safety issue in Tampa – once you remove the lateral boards, the post becomes a lever, and a heavy gate will take the whole post down with a person nearby. Board clips, pinch points, and 60-pound sections of fiber cement are unforgiving. If the job is more than swapping one full board on an open run, call a crew. We’re at (941) 655-9297 and we’ll give you a straight number whether we do the work or not.
FAQs
A properly installed James Hardie fence lasts 25 to 30 years in Tampa’s climate, with the board material itself carrying a 30-year limited product warranty from the manufacturer. The weak points are fasteners and posts – we use stainless or hot-dipped galvanized fasteners rated for fiber cement, which is what makes the difference between a 7-year fence and a 30-year fence.
Yes, individual boards and rails can be replaced without redoing the entire fence, as long as the posts are still sound. We match the existing exposure and paint, and we prime every cut edge before installation so the patch won’t telegraph through. Call (941) 655-9297 and we’ll tell you honestly whether it’s a board swap or a post rebuild.
A partial repair takes one day on site. A full fence with new posts runs two to three days, including concrete cure time before we hang boards. We don’t set posts and hang the same day – concrete needs to set, and cutting that corner is how you end up with a fence that leans in the first summer storm.
We stock HardiePlank 5/16″ lap siding in 6″ and 8″ exposures and HardieTrim 1″ and 5/4″ boards on our trailer, along with the fasteners and primer we use on every fence job. We also stock materials for the other brands we’re set up to install – KraftMaid, Cambria, and Silestone – so when a job crosses from exterior into kitchen, the same crew and the same written price carry through.
Straight number, clear scope, no surprises at close-out. If you want a James Hardie fence that’s installed to the manufacturer’s fastener and gap specs, with a written number and a full-year guarantee behind it, call Bradford Remodeling Co Tampa at (941) 655-9297 and ask for Curtis. We’ll put eyes on the fence, tell you what failed and why, and hand you a written quote before a single tool comes off the truck.
Written by Curtis Lane, Owner, Bradford Remodeling Co Tampa at Bradford Remodeling Co Tampa, serving Tampa and nearby areas.
