Quick Overview
- Confirm your property line before installation day. Building along an old fence line without verifying it is one of the most common causes of disputes and costly rework.
- Ontario One Call handles public utility locates, but it does not mark private lines like sprinkler systems, pet containment wiring, or a gas line running to a backyard barbecue. That part is on the homeowner.
- Clear a 2 to 3 foot corridor along the entire fence line, including furniture, planters, and overgrown vegetation, so the crew can work safely and efficiently.
- Since posts are typically driven rather than dug, most installations don’t generate excess soil. On the rare hole that does need to be dug, due to a utility conflict or a buried obstruction, that material stays on the property and gets raked out rather than hauled away.
Why Preparation Matters More in Ottawa Than It Might Seem
A lot of general fence installation advice online is written for softer soil and milder climates. In Ottawa, the combination of deep frost penetration and dense, moisture-retaining clay means posts need to go significantly deeper than in most of the country, and that changes what actually needs to happen before a crew shows up. Skipping prep doesn’t just risk a messy yard for a day. It can mean a halted project, an unexpected surcharge, or a structural problem that shows up two winters later.
Confirm Your Property Line First
The single biggest source of post-installation disputes is boundary uncertainty. It is common to assume an old, existing fence marks the true property line, but that assumption is often wrong, sometimes by a meaningful amount after years of shifting from frost heave or a rushed original installation. Before committing to a new fence line, it is worth confirming the actual boundary, whether through an existing survey or a licensed surveyor, rather than eyeballing it off the old structure.
It also helps to talk to your neighbour before installation day, especially if the fence sits on a shared line. This heads off surprises, gives them time to manage pets or landscaping on their side, and occasionally opens the door to a cost-sharing conversation (Get it in writing).
Utility Locates: What’s Covered and What Isn’t
This is where a lot of homeowners get caught off guard. In Ontario, anyone breaking ground is required to contact Ontario One Call at least five business days before digging. They dispatch locators to mark public utilities like gas, hydro, water, and telecom lines using a standard color-coded flag and paint system, and those markings stay valid for 60 days.
What Ontario One Call does not do is mark private lines. That includes sprinkler and irrigation systems, invisible pet containment wiring, a gas line running to a barbecue or pool heater, or electrical conduit feeding a detached garage. Locating those is entirely the homeowner’s responsibility. Miss one, and it’s very likely to get struck by a post-hole auger, which halts the project immediately and usually leads to an expensive emergency repair, one that typically falls on the homeowner since it wasn’t disclosed ahead of time.
Clear the Fence Line
Crews need real, unobstructed access to move materials, run equipment, and set a straight string line. Plan on clearing a 2 to 3 feet corridor along the entire proposed fence route: patio furniture, planters, hoses, fire pits, and anything else portable should be moved out of the way.
Overgrown bushes, low branches, and thick vegetation along the line should be trimmed back too. It’s also worth mowing the lawn a day or two beforehand, since short grass makes it much easier for the crew to spot roots, rocks, or buried edging that could slow things down or damage equipment. If an old fence is being removed as part of the project, make sure it’s clear beforehand whether that demolition and disposal, including old concrete footings, falls on you or the contractor, since it’s often treated as a separate line item.
Plan for the Dirt
Digging enough post holes to the 42 to 48 inch depth required in this region generates more excess soil than people usually expect. It’s worth thinking through where that dirt is going before the day arrives, whether that’s using it for raised garden beds, or offering it up locally.
What the Contractor Handles vs. What You Handle
There’s a common assumption that a hired contractor takes care of everything, and that’s not quite accurate. Public utility locates are always the contractor’s responsibility to arrange, though it’s worth confirming they’ve actually secured a valid ticket before digging starts.Private utility locates, property line accuracy, and by law height requirements are on the homeowner. Demolition of an old fence and disposal of the excess soil are usually negotiated separately rather than automatically included. Getting this division clear before the contract is signed avoids a lot of friction later.
Day-of Logistics
On the day itself, make sure gates are unlocked and any vehicles blocking the driveway or street access are moved so equipment can get as close to the work site as possible. Kids and pets should be kept indoors or off-site while the yard has open holes, heavy machinery, and loose materials around. It also helps to be present when the crew arrives for a quick walkthrough, confirming the layout, gate placement, and any private utilities you’ve already marked.
What This Means for Your Project
Most of the delays and unexpected costs in a fencing project trace back to a handful of preparation gaps: an unconfirmed property line, an unmarked private utility, or a fence line that wasn’t actually cleared. Taking care of these before your scheduled fence installation date keeps the project on schedule and avoids surprises once the crew is on site.
If you’re planning a project and want to know exactly what your property will need before your fencing installation date is booked, our team can walk through the specifics with you ahead of time.
FAQs
What should I do to prepare for fence installation?
Confirm your property line, mark or disclose any private utilities, clear a 2 to 3 feet corridor along the fence line, and plan for excess soil from post holes.
Does Ontario One Call mark everything underground on my property?
No. It only covers public utilities like gas, hydro, and telecom lines. Private lines such as sprinkler systems, pet containment wiring, or a gas line to a barbecue are the homeowner’s responsibility to identify.
Who is responsible for removing an old fence before a new one is installed?
Usually, we discuss old fence removal with the customer when preparing the quote, either during an on-site visit or over the phone. Depending on the project, we can include fence removal in the quote or the customer can arrange for it themselves.
How deep do fence posts need to be in Ottawa?
Generally 42 to 48 inches, below the local frost line, to avoid the structural damage caused by winter frost heave.
Can a fence be installed in winter?
Yes, in many cases, though it comes with added logistics like clearing snow along the fence line and marking any obstacles hidden underneath it.
Summary
Getting a property ready for fence installation in Ottawa takes more than clearing a few lawn chairs out of the way. Confirming the real property line, understanding exactly what Ontario One Call does and doesn’t cover, clearing proper access for equipment, and planning around the season all make a meaningful difference in how smoothly the project goes. Most delays and unexpected costs come down to a handful of preventable gaps, and addressing them ahead of time is the simplest way to keep a project on schedule and avoid surprises once work begins.