The short version for a Mercer County fence project
A fence in Mercer County is governed first by the municipality where the property sits, not by the county. The county seat is the borough of Mercer, and the largest places are Hermitage, Sharon, Grove City and Greenville. The county borders Trumbull and Mahoning counties in Ohio, which is why a project near the state line can be quoted from our base in Bristolville, Ohio.
We build farm, horse, wire, wood and chain link fence and gates in Ohio and Pennsylvania. Whether we reach a particular Mercer County property is something the FREE estimate call confirms, so ask before you assume either way. This page explains the local rules and habits that matter before anyone sets a post.
| Place | What to know for a fence project |
|---|---|
| Mercer (county seat) | A borough. Fence questions go to the borough office, not the courthouse. |
| Hermitage | One of the four largest places, and the location of the Mercer County Regional Planning Commission office. |
| Sharon | One of the four largest places. Confirm fence height and placement with the local office before you order. |
| Grove City | One of the four largest places. Ask the local office about fence height and any permit. |
| Greenville | One of the four largest places. Rules inside it and in the surrounding townships can differ. |
Zoning in Mercer County is municipal, and most municipalities have it
Thirty of the 48 municipalities in Mercer County have zoning, according to the Mercer County Regional Planning Commission. That means a fence in roughly two out of three places is subject to a local ordinance, and in the rest there may be no zoning rule to read at all. The commission links the ordinances on its website, which saves a trip to each office.
Pennsylvania lets municipalities regulate structures through the Municipalities Planning Code, and the code defines a structure broadly enough that a fence can fall under it. Because zoning is municipal, one township may allow a fence right up to the road and the next may demand a setback and a permit. Rules vary by township and municipality, so check with the local office before you commit to a layout. This is general information, not legal advice.
Two layers of permit
The state Uniform Construction Code exempts residential fences no more than 6 feet high from a building permit, which means a taller one needs a permit. That exemption only holds if the work does not violate a law or ordinance, and a municipality may still ask for its own zoning permit on any fence. Treat the two as separate questions and ask both.
The Pennsylvania Fence Law and farm land
Pennsylvania has an old Fence Law that applies to improved and occupied farm and ranch land. Under it, neighbors who both use a boundary fence generally share the cost equally unless they have agreed otherwise. A Pennsylvania Farm Bureau summary also says no one can be required to build or repair a line fence from December through March. That summary is a secondary source, so verify the current statute or ask an attorney before you rely on any detail.
The law is not meant for a typical suburban lot. The Farm Bureau summary points to a court decision, Fogle v. Malvern Courts, for the idea that the Fence Law is a farm and ranch rule. If your Mercer County property is a residential lot in Hermitage or Sharon, the rules that matter most are the local zoning ordinance and any agreement you make with the neighbor.
- On a farm line, talk to the neighbor before the fence goes up and write down who builds which section.
- If you share the cost, agree on the fence type first, because a woven wire line and a four-board horse fence do not cost the same.
- Remember the December through March rule when you plan a repair, since a neighbor cannot be forced to act then.
- For a real dispute, the Penn State Center for Agricultural and Shale Law is the place Penn State sends fence questions.
New Wilmington and the farms around it
Mercer County is part of the New Wilmington Amish settlement, which spans Mercer and Lawrence counties. The directory site Amish America lists the settlement at 2,465 people for 2026. That figure comes from a directory, so treat it as an approximation, not a census.
What that means for fencing is practical. Where farms are worked, the fence people ask about is often horse, cattle or sheep fence, with a gate wherever animals or equipment need to move. Our owner was raised Amish and our work is built on Amish craftsmanship, so a farm fence with deep, well-set posts and gates that swing true is the kind of work we aim for. Read more about who we are and about Amish-built fence work.
Choosing the fence for a Mercer County property
The right fence follows the animal or the purpose, not the catalog. Match the job to the type and the budget conversation gets simpler.
| Property use | Fence to look at | Page |
|---|---|---|
| Cattle or sheep pasture | Woven wire or high tensile with sturdy posts | Field and woven wire fence |
| Horses | Board or rail fence with a visible top line | Horse fence |
| Whole-farm perimeter and gates | Farm and ranch fence with gates at each field | Farm and ranch fence |
| Village or in-town yard | Wood privacy or picket, kept to local height limits | Wood privacy fence |
| Commercial lot or utility yard | Chain link | Chain link fence |
From first call to finished fence
- Call or request a FREE estimateTell us the address, the fence type and what the fence needs to hold or keep out. We confirm whether the property is within our reach.
- Walk the lineWe look at the ground, the gates, the corners and the existing fence, if any. A tape and a conversation settle most questions.
- Check local rulesYou or we contact the municipal office about permits, setbacks and height. Rules vary by township and municipality.
- Call 811Pennsylvania requires three business days notice to PA One Call before digging. The hired contractor makes that call, and you can ask for the serial number.
- BuildPosts first, then rails or wire, then gates. Corners and gate posts get the most attention because they carry the load.
- Walk it togetherWe check gates swing and latch and the line runs where it should. Warranty terms are written into the estimate.
Who to call in Mercer County
These offices are real and linked from our sources. They can tell you what applies to your parcel, which we cannot do from a distance.
| Question | Who to contact | How |
|---|---|---|
| Zoning ordinance and list of zoned municipalities | Mercer County Regional Planning Commission, 2491 Highland Rd, Hermitage, PA 16148 | 724-981-2412 |
| Fence permit or setback in your borough or township | Your municipal zoning officer | Look up the number on the municipality page |
| Digging for posts | PA One Call | Dial 811 or 800-242-1776 |
| Farm line fence legal questions | Penn State Center for Agricultural and Shale Law | AgLawCenter@psu.edu |
Mistakes to avoid
- Assuming the county sets the rules. In Mercer County it is the municipality, and 30 of the 48 have zoning.
- Building a farm line fence without telling the neighbor. Written agreements prevent most arguments.
- Skipping the 811 call. Pennsylvania requires at least 3 business days before excavation, and the call costs homeowners nothing.
- Using the Fence Law on a small residential lot where it likely does not apply.
- Choosing a fence height before reading the local limit, then cutting boards after the fact.
- Putting off a repair until winter, then discovering a neighbor cannot be forced to share it between December and March.
Get your FREE estimate
Tell us what you are fencing and where. We will talk it through with you and come out to walk the line.
Questions we hear
Do you build fences in Mercer County, Pennsylvania?
We build fence and gates in Ohio and Pennsylvania from our base in Bristolville, Ohio. Mercer County borders Trumbull and Mahoning counties in Ohio, but reach depends on the address and the job. Call (440) 241-4312 for a FREE estimate and we will confirm whether we can serve your property.
Do I need a permit for a fence in Mercer County?
It depends on the municipality. Thirty of Mercer County's 48 municipalities have zoning, and each can set its own fence rules. The state building code exempts residential fences up to 6 feet from its permit, but a local zoning permit may still apply. Check with your township, borough or city office.
Who pays for a shared fence on a Mercer County farm?
The Pennsylvania Fence Law generally calls for neighbors to share a line fence on improved farm land equally unless they agree differently. Our source is a Pennsylvania Farm Bureau summary, so verify the current law or ask an attorney. A written agreement with your neighbor is the safest path.
Does the Fence Law apply to my house lot in Hermitage or Sharon?
Probably not in the same way. A Pennsylvania Farm Bureau summary describes the Fence Law as a farm and ranch rule and cites a court case for that point. On a residential lot, municipal zoning and your agreement with the neighbor matter more. This is general information, not legal advice.
Do I have to call 811 before a fence goes in?
Yes. Pennsylvania requires notice to PA One Call at least 3 business days, and no more than 10, before digging. The person doing the excavation makes the call. If you hire us, we call. You can ask any contractor for the PA One Call serial number as proof.
Can a neighbor be forced to fix a fence in winter?
A Pennsylvania Farm Bureau summary says no landowner can be required to build or repair a line fence from December through March. That is a secondary source, so confirm it before you plan around it. For farm fences, try to settle repairs and sharing in the fall or spring.
What fence suits a pasture near New Wilmington?
It depends on the animals. Woven wire suits sheep and cattle, board or rail suits horses, and gates belong at every field corner. We can talk through your pasture on a FREE estimate call and recommend one fence type for the job.
How do I find my township's fence rules?
Start with the Mercer County Regional Planning Commission list of municipal zoning ordinances, then call the zoning officer for your township or borough. Ask about height, setbacks, front yard limits and whether a permit is needed. Rules vary by township and municipality.
- Mercer County Regional Planning Commission, municipal zoning ordinances
- Mercer County, Pennsylvania (Wikipedia)
- Pennsylvania Farm Bureau, Boundary and Fencing Laws
- Amish America, largest Amish communities in Pennsylvania
- Pennsylvania Uniform Construction Code, Chapter 403
- Pennsylvania Municipalities Planning Code, Act 247 of 1968
- PA One Call, information for excavators
- Penn State Extension, legal considerations for agritourism in Pennsylvania
