What Drives Fence Installation Cost in Western Montana

What are the main cost drivers for a new fence?

In rough order of influence: total length, the number of corners, ends and gates, the material and style, the ground conditions at each post, the terrain along the line, whether an old fence has to come out, and access for equipment and material. Everything else, from hardware to finish, is usually a smaller share.

Length sets the baseline because posts, rails and panels are bought and installed by the foot. The other factors decide how much work each foot takes.

Why do corners and gates add so much?

Because they carry the load. Line posts mostly hold panels or wire up, while corners, ends and gate posts take the tension of the whole run. On a wire fence those points need brace assemblies; on a wood or vinyl privacy fence they need heavier posts set deeper. A rectangle with two gates has more structural work in it than a straight run of the same length.

Gates are a cost on their own. A gate is a lever, and its hinge post carries a load the line posts never see, which is why gates sag. Wider drive gates for trailers or equipment need heavier posts and hardware. Our guide to why gates sag and how they are fixed explains the engineering.

How does the ground change a fence price?

Every post goes into a hole, and the ground decides how long each hole takes. In loam an auger goes down quickly. In cobbly or gravelly ground, a hole can stop on a rock the size of a basketball, and getting through it takes a bar, a different auger or an excavator. Ground that holds water needs drainage at the post base, which adds gravel.

Post depth matters too. Western Montana ground freezes and thaws repeatedly, and posts that are set too shallow get lifted a little every winter. We set depth by the soil and exposure on the property rather than one figure everywhere; frost depth and fence post footings explains why, and how snow and frost heave damage fences shows what happens when it is skipped.

Does a sloped or uneven line cost more?

Usually. On a slope, panels either step down in stages or rack to follow the grade, and both take more cutting and fitting than a flat run. Equipment is slower on a hillside, and material may have to be carried. Lines that cross a ditch, a drainage swale or a tree root zone need special handling at those points.

Trees along a fence line are common on Bitterroot acreages. Setting posts inside a tree's root zone can damage roots, and fencing around a trunk needs room for growth. As a tree company as well as a fence installer, we plan those spots with the tree in mind.

Which material choices move the cost?

Material changes both the purchase price and the labor. Cedar and treated wood, vinyl, chain link, ornamental metal, split rail and wire fencing each go in differently. A solid privacy fence has more material per foot than an open rail fence and catches more wind, so it needs sturdier posts. Our comparison of wood, vinyl, metal and composite fencing covers how each holds up here, and split rail and buck-and-rail fences covers the rural styles.

Height matters as well. Taller fences need longer, deeper posts and more material. The International Residential Code, the model code Montana adopts, lists fences not over 7 feet high among work exempt from a building permit, but cities, counties and HOAs can set their own height and placement rules. Check fence height and permit rules and your covenants before you settle on a design.

What does removing an old fence add?

Tear-out is labor and disposal. Old wood fences come down quickly, but old posts set in concrete have to be dug or broken out, and the holes are often in the way of the new line. Wire fences take time to roll up safely. If the old posts are sound and well placed, reusing some of them can save money, though only if they will outlast the new fence.

Wildlife and livestock design

On acreage, the purpose of the fence shapes the cost. Montana Fish, Wildlife & Parks recommends a wildlife-friendly design for livestock fencing: a top wire or rail preferably no more than 40 inches and at most 42 inches high, at least 12 inches between the top two wires, a smooth bottom wire at least 16 and preferably 18 inches off the ground, and posts at 16.5 foot intervals. FWP notes that many of these designs are low-cost or save money over time by reducing repairs from animals hitting the fence.

A fence to keep deer out of a garden is a different job: it is taller and built to stop jumping. Our guides to wildlife-friendly fencing, deer and elk fencing, horse fencing and fencing a yard for dogs explain the different designs.

Do I need a survey before fencing?

If you are not certain where the line is, a survey is worth considering before anything goes in the ground. A fence built a few feet onto a neighbor's land is expensive to move. We do not survey property lines; a licensed land surveyor does. Our guide to fences and property lines explains when it is worth the cost.

FWP's fence guide also points out that most of Montana is open range, where landowners who want livestock kept out have to fence it out, while incorporated towns are closed range. That affects whether a rural fence has to stop a neighbor's cattle. Our guide to Montana fence law covers the details.

How do utilities and locates affect fence work?

Every fence post is an excavation, and Montana law requires notice through the one-call center before excavation. Under the Montana Code, the owners of underground facilities have two business days to locate and mark them once notified. Montana811 cautions that private lines may not be located through its system, and on a residential lot those are often the ones a fence line crosses: sprinkler pipe, landscape lighting wire and power to a shed.

A post that lands on a private line means a repair and a moved post. Telling the installer what you know about buried lines is free and avoids it.

Access, season and the rest

If equipment can reach the line, holes and material move quickly; if everything has to be carried through a side gate or across a finished lawn, labor goes up. Frozen ground slows post holes in winter, and spring is the busiest season for fence crews. Hardware, caps, stain or sealer, and concrete versus compacted gravel backfill are smaller factors, but worth asking about. Our guide to staining and sealing a wood fence covers finish.

How should you compare two fence quotes?

Ask each installer to state the total length, the number and type of posts, the post spacing and depth, the backfill method, the number and width of gates, the material grade, whether removal and haul-off are included, and who calls in the utility locate. Two quotes that agree on those items can be compared on price. Two that do not are quoting different fences.

Our guide to what to expect on fence installation day walks through the job itself, so you know what the quote turns into.

How we quote fences

We measure the line on site, look at the ground and the grade, and give a written estimate for custom fencing in cedar, privacy, chain link, vinyl and ranch styles. We also do fence repair when a fence has isolated problems rather than needing replacement. Estimates are free across Missoula and the Bitterroot Valley. For the rest of our planning and hiring guides, see the Montana Landscaping, Lawn & Irrigation Guide.

Call HJ Property Care & Tree Service at (406) 215-7319 or request a free fence estimate and we will walk the line with you.

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