Fence installation and repair in Denver.
Denver is the city we work in most, and it's the one where the paperwork surprises people. The build is straightforward — the frost line and the clay decide the hole, same as everywhere on the Front Range. It's the zoning permit and the historic districts that catch homeowners flat-footed.
The ground under a Denver fence
Denver sits on the alluvial fans that run out from the mountains, and the soil that gets named after this city is not a coincidence. The USDA soil survey's "Denver" series — with its type location in Jefferson County, right next door — is classified as fine and smectitic. Smectitic means expansive: the clay swells when it takes on water and shrinks when it dries out.
The Colorado Geological Survey doesn't hedge on what that means. Expansive clays in Colorado can swell substantially by volume when they get wet, and the pressures they exert are enormous — enough to crack driveways, heave sidewalks, and lift foundations. A fence post is a very small foundation. If it's set shallow, that soil will work it loose over a handful of seasons, and the fence will tell on you by leaning.
The second thing the ground does is freeze. Denver's building code puts frost depth at 36 inches, and every post we set in this city has its base below that line, in a concrete footer crowned so water runs off it instead of pooling against the post. Between the clay and the frost, depth isn't where you save money in Denver. It's where the fence is actually made.
Denver lots, Denver fences
Denver's neighborhoods are old, dense, and platted tight, and that changes the job. Alley-loaded lots in the older neighborhoods mean two fence lines, a gate on the alley, and often no way to get a truck to the back — which means we're carrying posts and concrete by hand, and we'll tell you that before we quote it, not after.
The property lines are also frequently not where people think they are. On a lot platted in the 1900s with a fence built in the 1960s and replaced twice since, the old fence is not a survey. We build to the line you can document. If the line is genuinely in question, get it surveyed — it's cheaper than moving a fence, and infinitely cheaper than a dispute with a neighbor you'll have for twenty years.
The last one is grade. A lot of Denver back yards have been regraded, terraced, or backfilled over a century. If a fence needs to step down a slope or ride along a retaining wall, that's a design decision we make with you at the walk, because chain-link can follow a grade continuously and a panel fence can't.
The four fences, in Denver
Chain-Link
Denver's default back-yard fence for decades, and it's still the cheapest way to enclose a lot. Great on the sloped and regraded yards you find all over the older neighborhoods — chain-link follows grade where a panel fence leaves gaps.
How we build it →Wood Privacy
The six-foot cedar privacy fence is what most Denver homeowners want, and it's what most HOAs and historic-district guidelines expect. Set the posts at 36 inches, keep it stained against the mile-high sun, and it's a twenty-year fence.
How we build it →Vinyl
Popular in the newer Denver subdivisions where nobody wants a stain cycle. Worth it if you're staying — the payback is in the decade after installation, not the first two years.
How we build it →Farm & Ranch
Rare inside Denver proper, but we build it constantly on the acreage just east of the city line. If you've got livestock and land on the plains, that's the fence we're talking about.
How we build it →Permits, height, and the HOA
Denver Community Planning and Development requires a zoning permit for fences over four feet tall, and for retaining walls over twelve inches. Under four feet, in most of the city, you don't need one.
The exception is the one that trips people. A fence in a historic district, on an individually designated landmark property, or along a designated parkway requires a permit regardless of height. Denver has a lot of both — the designated parkway system runs through neighborhoods people don't think of as historic at all. If you're anywhere near one, check before you dig.
Height limits under Denver's zoning code run four feet in the front yard and six feet in the side and rear for most residential zones, with industrial districts allowed more. Fences also have to sit back from the public sidewalk — Denver's requirement is at least six inches. Design review in a historic district can add material and style requirements on top of all of it.
Codes change. Verify current requirements with Denver Community Planning and Development— and with your HOA if you have one — before you build. We'll walk it with you and flag anything on your lot that's going to matter.
Denver fence questions
Do I need a permit to build a fence in Denver?
Denver requires a zoning permit for fences over four feet tall. Below that you generally don't need one — with a real exception: fences in historic districts, on designated landmark properties, or along designated parkways need a permit at any height. Verify your address with Denver CPD before you dig.
How tall can my fence be in Denver?
Under Denver's zoning code, residential front-yard fences generally top out at four feet and side and rear fences at six. Industrial districts allow more. Historic districts can add design requirements on top. Check your specific zone district and address with Denver CPD.
How deep do fence posts go in Denver?
Below the frost line, which Denver's building code puts at 36 inches. Every post we set here bottoms out below that, in a concrete footer crowned to shed water. The expansive clay under most of the metro is the second reason depth matters — shallow posts get worked loose.
Can you get to an alley-loaded lot in an older Denver neighborhood?
Yes, and it's most of what we do here. It sometimes means we're hauling posts and concrete by hand instead of backing a truck to the work. That affects labor and we'll tell you at the walk, before the quote — not after.