Vinyl Fence Installation
Full-service installation: old fence hauled away, footings dug, and panels racked true to your yard’s slope.
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Stevenson Ranch lots climb the Santa Susana foothills more than they sit flat, so a fence here needs real racking, not a fence dropped in on the level.
Pro Vinyl and Aluminum Fencing has built and installed both materials across Greater LA since 2018, on a straight 5.0 rating.


Stevenson Ranch’s foothill lots and open-space edges call for fencing that follows the grade, not fighting it, in vinyl or aluminum.
A sloped yard near the open space, a flat pad near Westridge, or a driveway gate on a cul-de-sac: each gets measured on site, priced from real numbers, and racked to the actual slope, not a flat design forced onto a hill.
Stevenson Ranch sits in the Santa Susana Mountains foothills, an unincorporated LA County community of about 6.4 square miles with genuinely varied topography: some pads are flat, others step toward the open space that makes up roughly 1,000 of the community’s acres.
A fence plan that ignores that terrain looks wrong within a year. We survey the actual slope first and rack the line to it, so the top stays level while the bottom follows the grade.
Backyards that end at open space take vinyl privacy or semi-privacy panels; street-facing yards near Westridge more often take picket or two-tone work. Larger sloped parcels suit ranch-style rail, and pool enclosures are built to the state barrier code.
On the aluminum side there is a modern privacy or semi-privacy look, picket styles, and gates configured single, driveway or rolling, with the powder-coat finish in black, white or a wood-look tone, whichever the elevation calls for.

Stevenson Ranch is a census-designated place, not an incorporated city, so fencing here falls under the LA County Code rather than a city’s own municipal code. That matters at permit time: the county, not a city planning office, reviews taller fences and any engineering tied to a steep pad.
Cost breaks down to the same variables on every job: footage, height, material choice, gate count, the amount of racking a slope demands, and whether an existing fence needs removal before the new one goes in. Foothill lots often add a slope-survey step that a flat corridor lot skips. A phone call gets a ballpark; a visit gets the real number.
Homes near the community’s open-space acreage and trail edges, and those closer to the Valencia Marketplace corridor along Interstate 5, call for different privacy needs, and we plan the fence line around whichever one borders your yard. A yard that opens onto the hillside trail system often wants full privacy panels, while a lot facing a quiet interior street can get away with a lower picket or semi-privacy run.
Both materials rack to a grade, but differently. Vinyl panels step down a hillside in sections, keeping the top line level while the fence follows the property line downhill.
Aluminum’s powder-coated frames do the same with a more open, modern look on picket or semi-privacy runs where sightlines toward the foothills matter. Vinyl’s color runs through the material itself, so a scrape never shows white underneath and it never yellows in direct hillside sun.
Half of this boundary faces open ground rather than a neighbor, and dry brush and sky are unforgiving backdrops for a tone chosen indoors. Look at the squares outside, on the slope, at the hour you are actually home.
A body color and a contrasting frame is one way to use these, and it works because the groups differ in surface, not only in shade. Plain solids read flat, the wood grains show milling, the blends carry the most relief.
Pro Vinyl and Aluminum Fencing partners with Catalyst, one of the leading vinyl fence manufacturers in the United States. Their US-made vinyl, our custom fabrication and installation, backed by a transferable limited lifetime material warranty.
Sun sits on these runs all day and the finish does not mind. The powder is applied dry, then baked until it bonds to the aluminum. The trade is range: black, white or a wood-look tone, and matte black alone on contoured slats.
Pro Vinyl and Aluminum Fencing is a trained and authorized SLEEKFENCE™ contractor. SLEEKFENCE™ is a premium-class aluminum fencing brand registered in the USA – their engineered material, our custom fabrication and welded install, with a 20-year material warranty behind it.
With open ground on the far side, there is often nothing to screen from, so the number gets set by what happens inside the yard instead. Grade complicates it, and the address carries a limit of its own.
| Fence style | Min | Max |
|---|---|---|
| Vinyl privacy | 4 ft | 8 ft |
| Vinyl privacy w/Accent top | 5 ft | 8 ft |
| Vinyl picket | 3.5 ft | 6 ft |
| Vinyl wall topper | 2 ft | 3 ft |
| Aluminum privacy | 4 ft | 12 ft |
| Aluminum semi-privacy | 4 ft | 12 ft |
| Aluminum privacy hybrid | 4 ft | 12 ft |
| Aluminum wall topper | 2 ft | 4 ft |
Around Stevenson Ranch, installations range from privacy panels racked down a foothill slope to flat picket runs near Westridge, with every project sized to the lot’s actual grade rather than one design forced onto every hillside address alike.
Stevenson Ranch is a census-designated place in Los Angeles County, unincorporated and governed under county code rather than its own city hall. It sits roughly 35 miles northwest of downtown LA, west of Interstate 5 in the Santa Clarita Valley, with about 20,178 residents as of 2020. The community includes the Westridge neighborhood and sits near the Valencia Marketplace corridor.
Stevenson Ranch covers about 6.4 square miles of the Santa Susana Mountains foothills, with roughly 1,000 acres set aside as parks and open space. That terrain means fence runs here see more grade change than a flat suburban tract, and posts, panel racking, and gate hardware all need to account for a lot that rarely sits level end to end.
Stevenson Ranch is home to Mentryville, a historic oil-mining town founded in 1875, and sits close enough to Six Flags Magic Mountain to feel the traffic on a summer weekend. West Ranch High School, Rancho Pico Junior High, and the Stevenson Ranch Shopping Center anchor daily life here more than any single downtown strip.
As unincorporated LA County land, Stevenson Ranch fencing follows the county code: front, side, and rear fences generally reach 6 ft without a permit, and anything taller requires a building permit plus an engineering review, a step that matters more here given the sloped pads common in the foothills. Pool barriers still follow the state Pool Safety Act regardless of lot grade.
Verify your specific lot and slope conditions with the LA County Department of Regional Planning before finalizing a design. A shared property-line fence typically falls under that same statewide Good Neighbor rule: costs are presumed split between the two owners, and 30 days’ written notice is required first.
A Stevenson Ranch fence job moves through the same four stages regardless of how steep the lot is: an accurate on-site read of the slope, a written contract, a build crew that racks to grade, and paperwork handed over once the crew packs up.
Every foothill lot gets measured in person before anything is priced, never guessed at over the phone.
A team member walks your Stevenson Ranch lot, checks the actual slope, measures the run, and notes every gate.
Materials, colors, heights, gate count, and timeline go into the contract before a single post gets set.
Posts get set for the actual grade, panels are racked to follow the slope, and the old fence is hauled off.
Aluminum’s 20/10/2 coverage and vinyl’s transferable lifetime warranty both sit on our 5-year workmanship guarantee.

Straight answers on materials, upkeep, and slope-lot fencing for Greater LA homeowners planning a project.
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Fences blog
Stevenson Ranch Fencing Questions Answered
Straight answers to what Stevenson Ranch homeowners actually ask, from county height rules on unincorporated land to what a Santa Susana foothill slope does to a fence line, plus what an engineering review actually covers before a crew ever sets a post.
Have a question for us?
A quick message gets a straight answer, usually the same business day.
Stevenson Ranch is unincorporated LA County land, so fencing follows county code rather than a city ordinance. Front, side, and rear fences generally reach 6 ft without a permit.
Confirm your exact lot with the LA County Department of Regional Planning, since a sloped pad can affect what’s allowed.
No separate ordinance singles out lots bordering the community’s open space and parks acreage; the same LA County height and permit rules apply everywhere in Stevenson Ranch.
What changes is the build: trail-facing lots often carry more slope, so post depth and racking get planned for that edge.
Stevenson Ranch is a census-designated place, not an incorporated city, so the Los Angeles County Department of Regional Planning oversees fence height and permit questions here instead of a city planning office.
Often, yes.
Many Stevenson Ranch lots sit on Santa Susana Mountains foothill terrain rather than flat ground, so panels get racked in sections that follow the actual grade instead of stair-stepping, and posts are set with the slope in mind from the start.
Yes, and grade does not change the numbers: a 60 inch minimum height, a 2 inch ceiling on ground clearance, no gap wider than 4 inches, and hardware that shuts and locks the gate automatically.
Vinyl qualifies as an approved non-climbable barrier material.
An HOA in this community can layer its own CC&Rs on top of the county code, sometimes setting a tighter height, color, or material limit than the county requires on its own.
Check those private guidelines before settling on a final fence design.