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AfterJames Hardie Fence Installation: The Los Angeles Owner’s Guide
James Hardie fence installation in Los Angeles typically runs $4,130 to $10,620 for a complete run, and we stock the compatible trim, rails, and fasteners on our trucks so most jobs don’t wait on parts. You usually find out the installation is failing when a panel starts leaning after a hard Santa Ana wind, or you notice the bottom edge of a Hardie board soaking up moisture where it meets the soil. Tom Barrett and his sons have been putting up fences across LA since 1998, and we’ve seen just about every way a Hardie fence can go wrong in this climate: dry rot at the cut ends, rusted fasteners bleeding stains down the face, and rails that pulled loose because somebody used the wrong screw pattern.
Which James Hardie Models This Applies To
James Hardie makes fiber-cement siding and trim boards, not a complete fence kit, so most “James Hardie fences” in Los Angeles are built from HardiePlank lap siding or HardiePanel vertical siding mounted on a wood or steel post-and-rail frame. The gotcha: HardieTrim boards and HardieSoffit panels carry different thicknesses (5/16 inch versus 1/4 inch), and if a contractor swaps one for the other mid-run, the face won’t line up flush at the seams. Check the barcode label on the back of a leftover board or the original order sheet; the product code starts with an HZ or HZ5 for Zone 5, which covers Los Angeles humidity and rain exposure. We match OEM Hardie boards where the homeowner wants a true factory match, and we’ll tell you plainly when a quality aftermarket fiber-cement panel makes more sense for the budget.
Signs Your James Hardie Fence Installation Is Failing
- Panels wicking moisture at the bottom edge. Hardie boards should sit at least 2 inches above soil, but installers in a hurry often bury them. Once the cut end drinks water, it swells and delaminates. We’ll see this within three to five years on poorly done LA fences.
- Rust streaks running down from fastener heads. Fiber cement eats standard steel screws. Electro-galvanized fasteners fail first, especially within a mile of the coast where salt air gets into everything.
- Rails pulling away from posts. Hardie boards are heavier than wood planks, and a 6-foot panel section can weigh 40 pounds. If the installer used finish nails instead of corrosion-resistant screws with the right spacing, the rails start sagging.
- Visible gaps opening at seams. Fiber cement expands and contracts with temperature swings. LA’s inland valleys can swing 40 degrees in a day, and without proper expansion gaps, boards crack or pop their fasteners.
- Alkaline bloom on the surface. A white, chalky film means water is moving through the board and pulling lime out. It’s a sign the paint or caulk failed at the cut edges, which is the first place Hardie fences break down in LA’s wet winters.
Replacement Cost & What’s Included
A full James Hardie fence installation in Los Angeles runs $4,130 to $10,620 depending on linear footage, board profile, post spacing, and whether we’re pulling the old fence or starting fresh. The low end covers a straight run under 60 feet with basic 4×4 posts and lap siding; the high end handles taller privacy fences, steel post frames, gates, decorative HardieTrim caps, and tear-out of a rotted wood fence. Every quote lists parts and labor separately, so you know exactly what the boards cost and what the crew time costs. We pull permits on eligible jobs, and every completed fence carries our 90-Day Done Right Promise: if it’s not done right, Tom comes back and makes it right, one call.
DIY or Call Us?
Fiber cement is not dangerous the way a garage spring is, but it’s unforgiving to work with. You can safely check things yourself: look for buried board ends, rusted fasteners, cracked corners, and gaps that should have been caulked. Where DIY goes wrong is cutting Hardie board without the right blade (it eats standard carbide blades and fills the air with silica dust) and spacing fasteners wrong so the board edge blows out. If you’re replacing one or two boards and you already own the tools, go for it. If the rails are sagging or the posts are moving, call us at (877) 610-1318 before you waste a weekend and a stack of boards.
FAQs
A properly installed James Hardie fence lasts 20 to 30 years in Los Angeles, but the frame it hangs on fails first. We replace the fiber cement every 25 years or so, but the posts and rails typically need work at the 10 to 15 year mark, especially in sprinkler-heavy yards.
Yes, single boards and trim pieces can often be swapped without pulling the whole fence. If the rails and posts are still solid, we match the board profile and color, replace the bad sections, and you’re back in business for a fraction of a new install. Call (877) 610-1318 and we’ll look before we quote you a full replacement.
Most James Hardie fence installations in Los Angeles take three to five working days from tear-out to final walk-through. Permits, if required, can add a few days on the front end. We give you a written schedule before we start, and Tom’s sons are on-site most days running the crew.
We stock the most common James Hardie trim profiles, lap siding, fasteners, and rails in our Los Angeles yard. Odd sizes or special colors may need a distributor order, which usually lands in two to three days. We’ll tell you upfront what’s on the truck and what’s on order before you sign anything.
We also stock parts for KraftMaid, Cambria, and Silestone, so if this fence project turns into a bigger outdoor living job, the crew’s already familiar with the brands on your property.
Call Barrett & Sons for Your James Hardie Fence in Los Angeles
You’re welcome to look up Tom Barrett’s name, address, and license number before you call. The permit inspector works for you, not for us, and that’s exactly how Tom likes it. If you’re pricing a James Hardie fence installation in Los Angeles, get the scope in writing: materials, labor, permits, change orders, all of it. Call (877) 610-1318 for a free estimate, and we’ll do it right the first time, or we’ll come back and make it right.
Written by Tom Barrett, Owner, Barrett & Sons Construction at Barrett & Sons Construction, serving Los Angeles and nearby areas.