Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Oldcastle Fence Installation: The Pomona Owner’s Guide
Oldcastle fence installation in Pomona typically runs $3,500-$9,000 for a complete vinyl system, with most residential jobs falling between $4,500 and $6,500 depending on linear footage and terrain. We stock Oldcastle-compatible posts, rails, and pickets for same-day repair on common failures. Most Pomona homeowners discover a problem when a wind event hits the 210 corridor or when a post leans after the winter rains soften the clay-heavy soil near the Fairplex.
Grant Rowan’s crew has replaced enough of these after Santa Ana gusts to know the failure pattern: the post rots at grade, the rail pulls from the bracket, or the picket cracks at the screw hole. Measure twice, then we can talk.
Which Oldcastle Models This Applies To
Oldcastle produces vinyl fence systems under several series names, and the part you need depends on the profile shape and the rail connection type. The most common in Pomona are the Coventry and Berkshire lines, both sold through Lowe’s and regional distributors. Coventry uses a 2-inch by 3.5-inch top rail with a snap-lock bracket; Berkshire uses a 2-inch by 5-inch rail with a routed pocket connection. Check the inside of the post cap or the end of a spare rail for an embossed series name and date code.
We carry both OEM Oldcastle rails and posts from Weatherables, a quality aftermarket equivalent that matches the 5-inch picket width and 0.150-inch wall thickness. The aftermarket posts use a steel insert at grade, which we prefer for Pomona’s expansive clay soil. One compatibility gotcha: Oldcastle’s 2018-2021 production used a slightly different bracket spacing (72 inches on center versus the current 67 inches), so a new rail won’t seat properly without a post replacement or bracket relocation. We verify this on site before quoting.
Signs Your Oldcastle Fence Installation Is Failing

- Post leans or wobbles at the base. The concrete footing has cracked or the post itself has rotted below grade. In Pomona’s clay soil, winter saturation followed by summer shrinkage creates a pocket that lets the post rock.
- Rail pulls away from the post bracket. The plastic bracket has fatigued from thermal cycling, or the screw has stripped the vinyl pocket. This usually starts at the end of a run where wind load concentrates.
- Picket cracks vertically at the screw hole. Over-tightened fasteners or impact from a lawn mower create stress risers. Oldcastle’s vinyl is rigid, which means it doesn’t flex much before it snaps.
- Gate sags and drags. The diagonal brace has loosened, or the post has settled unevenly. A gate that worked in March and drags by August is telling you the footing is moving.
- Discoloration or chalking on the south-facing side. UV degradation of the titanium dioxide cap layer. This is cosmetic until the underlying vinyl becomes brittle, which in Pomona’s sun exposure takes 8-12 years.
Before
AfterReplacement Cost & What’s Included
| Scope | Price Range in Pomona |
|---|---|
| Single post replacement (concrete, post, cap) | $350-$650 |
| Rail and bracket replacement (per 8-ft section) | $180-$320 |
| Gate rebuild (posts, frame, hardware) | $800-$1,400 |
| Complete vinyl fence installation (per 100 linear ft) | $3,500-$9,000 |
The range depends on three things: access (can we get a mini-excavator to the line, or is it hand-digging between a pool and a retaining wall), soil condition (clay with cobbles takes longer), and whether we’re matching existing faded color or replacing a full run. Our quote is a flat price with a written scope and a written warranty. Under Clause 1 of the Haven Standard, that price is written before anyone starts. No change proceeds without a signed change order.
DIY or Call Us?

There’s a short list of what a homeowner can safely verify: whether the post is loose in the footing, whether the bracket screw has backed out, whether the gate hinge pin is intact. A socket set and a level will get you that far.
Where DIY goes wrong is the digging. Oldcastle posts are set 30 inches deep in concrete in Pomona’s code jurisdiction, and that concrete bonds to clay soil like it was poured yesterday. We’ve seen homeowners spend a Saturday with a post-hole digger and a come-along, then call us Monday with a stripped bracket and a bent rail. The other hazard is the gate spring tension on self-closing hardware, which can snap a finger if released without a clamp. We carry hydraulic gate closers as an alternative on every truck.
If you’re staring at a leaning post and wondering whether it’s a footing or a rot problem, call (626) 606-1081. We’ll come out, diagnose it, and give you a written price before any work starts.
FAQs
In Pomona’s climate, a properly installed Oldcastle vinyl fence lasts 20-30 years, with the cap layer showing chalking around year 10-12 on south-facing exposure. The posts fail first if they’re not sleeved or if the concrete footing cracks from clay soil movement. Call (626) 606-1081 for an exact quote on replacement versus full installation - estimates are free.
A hairline crack in a picket can be bridged with a vinyl weld kit, but the repair is visible and the rigidity is gone. Rails with bracket damage are not repairable; the pocket geometry is too precise. We quote replacement so the fix lasts. Call (626) 606-1081 for a written price before any work starts.
A single post replacement takes 2-3 hours including concrete cure time for fast-set mix; a rail swap takes 45 minutes if the brackets are intact. Full runs take a day or two depending on linear footage and access. We bring a documented photo record of the condition before and after, included as standard.
We carry Coventry and Berkshire compatible rails, posts, and brackets in white and tan, plus steel post inserts and fast-set concrete. For colors outside that range or for the 2018-2021 bracket spacing, we order overnight from the Ontario distribution center. We verify fit on site before any work proceeds.
Rowan Construction Group Pomona is an independent service provider and is not affiliated with Oldcastle. We also stock and install parts for KraftMaid cabinetry, Cambria and Silestone countertops, and other brands across our seven trades.
Written by Grant Rowan, Owner, Rowan Construction Group Pomona at Rowan Construction Group Pomona, serving Pomona and nearby areas.







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