Before Fence Posts Are Dug in BC: Utility Locates, Property Lines and Quote Responsibility
A utility locate, a legal property-line confirmation and an installation layout are three different checks.
Before fence posts are dug, the written quote should state who submits the locate request, who confirms the intended property line, how private underground lines are handled and what happens when a utility prevents a post from being installed in the original location.
Quick answer
The property owner should not assume that a utility locate proves the fence is on the legal boundary, and a contractor should not assume that an old fence marks the correct line. Either the homeowner or contractor may initiate a BC 1 Call request, but the quote should clearly assign responsibility for the request, responses, private lines, survey information and any resulting layout changes.
Fence installation involves more than measuring the linear footage and selecting a panel colour. Once posts are excavated and concrete is placed, correcting a boundary mistake or underground conflict can require removing completed work, changing gate locations or redesigning an entire fence run.
This risk is especially relevant when replacing an older cedar fence. The existing fence may lean, curve around trees, sit inside one property or cross the intended boundary. Its location is useful site information, but it is not automatic proof of the legal property line.
The same distinction applies underground. A BC 1 Call ticket provides information about participating underground-facility owners near the proposed excavation. It does not determine land ownership, approve the fence layout or guarantee that every private line on the property has been identified.
Quick Facts Before Fence Posts Are Dug
Property line: Establishes where the legal parcel boundary is located.
Utility locate: Provides information about participating underground facilities near the marked excavation area.
Fence layout: Determines where posts, panels, gates, corners and transitions are proposed.
BC 1 Call request: Can be initiated by a homeowner or contractor.
Ticket receipt: Does not by itself mean that digging may begin.
Private lines: May require a private utility-locating service.
Written quote: Should identify who is responsible for each check and each resulting cost.
Three Checks Before Fence Posts Are Dug
1. Property boundary confirmation
This determines where the new fence may be positioned. The information may come from visible legal survey monuments, reliable survey documents or a Registered BC Land Surveyor. A contractor can install to a line identified by the owner or surveyor, but should not claim to establish a legal boundary unless qualified to do so.
2. Underground utility information
This identifies participating buried infrastructure near the proposed excavation. The dig area must be described and marked accurately so the responding facility owners understand where the fence posts are proposed.
3. Installation responsibility
This establishes who submits the locate request, monitors responses, supplies survey information, approves layout changes and pays for additional work when the original design cannot proceed safely.
Confusing these three checks is a common source of disputes. A utility marking may run beside the old fence, but that does not prove the old fence is on the boundary. A visible survey pin may help identify a corner, but it does not show whether private irrigation or electrical lines cross the proposed post locations.
What BC 1 Call Does
BC 1 Call provides a free process for homeowners and contractors planning ground disturbance in British Columbia. Installing fence posts is specifically included among the projects that should start with a locate request.
The request identifies the proposed excavation area. BC 1 Call then sends the ticket information to participating members that may have buried infrastructure at or near the site. Those facility owners respond with the applicable information, which may include surface markings, plans, clearance or digging instructions.
A ticket number is not permission to start excavating
The requestor should retain the ticket, wait for every notified member to respond and review the instructions before digging begins. The person performing the excavation is responsible for following the directions supplied by the underground-facility owners.
The proposed fence line and dig area should be marked clearly before the request is processed. A vague request covering the entire property can produce less useful information and may not reflect where the actual post holes will be excavated.
What BC 1 Call Does Not Confirm
A BC 1 Call response does not confirm:
✕ The legal property line.
✕ Whether the existing fence is correctly positioned.
✕ Whether a fence height or location complies with municipal requirements.
✕ Whether the neighbour approves a shared fence project.
✕ Whether every underground line on private property is owned by a participating member.
✕ Whether the original post layout remains practical after the responses are reviewed.
Some facility owners do not identify private-property secondary or house lines. These may include owner-installed irrigation, landscape lighting or other services between a primary connection point and a detached structure or yard feature. When private services may be present, a separate private locator may be needed.
The quote should distinguish between the free BC 1 Call request and any separately charged private locating work. A statement that “utilities are the homeowner’s responsibility” is too vague when it does not explain what information must be supplied or who decides whether additional locating is required.
When a Registered BC Land Surveyor May Be Needed
The City of Vancouver advises property owners to contact a Registered BC Land Surveyor to establish the property line. The City does not identify the legal boundary between neighbouring properties.
A full survey is not automatically required for every residential fence replacement. However, a Registered BC Land Surveyor may be required when the boundary cannot be confirmed reliably.
Consider professional boundary confirmation when:
☐ Survey pins or corner monuments cannot be found.
☐ The neighbour disputes the existing fence position.
☐ The old fence changes direction without a clear site reason.
☐ The proposed fence will sit very close to the assumed boundary.
☐ A retaining wall, easement or statutory right-of-way is nearby.
☐ The lot is irregular, angled or located at a corner.
☐ A gate, post footing or concrete base could encroach on adjoining land.
☐ The cost of correcting a mistake would substantially exceed the cost of confirming the line.
Burnaby’s official fence and retaining-wall guidance similarly states that only a BC Land Surveyor can accurately determine the property line and that the property owner is responsible for the survey cost.
Neighbour communication remains important even when survey information is available. Read our shared fence line and neighbour approval guide before removing a jointly used or boundary-adjacent fence.
Do Not Move Survey Pins or Legal Monuments
Legal survey monuments can take several forms, including metal posts, pins and other physical references. They should not be treated as construction debris or moved to create room for a post hole.
City-hosted survey guidance states that removing or tampering with legal survey monuments is not permitted. Fence posts and retaining walls should be positioned far enough away to avoid damaging or disturbing the monument.
Do not relocate a pin to make the fence line look straighter
If a monument appears to conflict with the proposed fence, stop and obtain professional direction. Moving the marker does not move the legal boundary and can make future boundary reconstruction more difficult and expensive.
Review the City-hosted guide to protecting land survey monuments in British Columbia before landscaping, retaining-wall or fence work near a visible marker.
Who Should Submit the Locate Request?
Either the homeowner or contractor may initiate a BC 1 Call request. The more important issue is whether the responsibility is assigned clearly before the installation date.
The party submitting the request should have enough project information to describe and mark the actual excavation area. That person should also monitor the responses, communicate restrictions to the installation crew and retain the ticket information.
Avoid duplicated or incomplete responsibility
“The homeowner thought the contractor arranged it” and “the contractor thought the homeowner already had it” are preventable project failures. The accepted quote should name the responsible party rather than relying on an informal conversation.
If the homeowner submits the request, the contractor should still review the responses before excavating. If the contractor submits it, the homeowner should disclose known private services, previous renovations, irrigation systems and any available property documents.
Contractor responsibility should be reviewed together with insurance and warranty documentation. Our guide to fence contractor insurance, WorkSafeBC status and warranty responsibility explains the other pre-contract documents that should be confirmed.
What the Fence Quote Should State
A written fence quote does not need pages of legal language, but it should make the installation assumptions visible. This protects the homeowner from unexplained additions and protects the installer from being expected to certify matters outside the contractor’s scope.
The quote should identify:
☐ Who submits the BC 1 Call request.
☐ Who marks the proposed fence-post excavation area.
☐ Who monitors responses and confirms that digging may proceed.
☐ Who identifies or confirms the intended property line.
☐ Whether a legal survey is included or excluded.
☐ How private-property secondary lines will be handled.
☐ Whether the homeowner must disclose irrigation or owner-installed services.
☐ What happens when a utility conflicts with a proposed post location.
☐ Whether the post, panel or gate layout may be revised.
☐ Who approves layout changes before work continues.
☐ How additional labour, materials or private locating costs are documented.
A survey, private locator or revised post system can increase the final project cost. These are legitimate quote factors when the conditions were not visible or known during the original estimate. The commercial problem begins when responsibility is undefined and an oral extra charge appears after excavation has started.
Any utility-driven redesign should be documented through a written change order showing the issue, proposed solution, price effect and schedule effect. A gate opening may need to move, a partial panel may be added, or an approved surface-mount method may be considered where suitable structural concrete exists.
What Happens When a Utility Conflicts With a Fence Post?
A contractor should not promise that every post can be installed in the originally drawn position. The correct response depends on the utility owner’s instructions, the fence system, post loads, property line and surrounding structures.
Possible solution 1: Shift the post and adjust the adjacent panel widths.
Possible solution 2: Move a gate opening or alter its width.
Possible solution 3: Use a different approved post or mounting detail where site conditions permit.
Possible solution 4: Expose the facility using the required safe-digging method before finalizing the post position.
Possible solution 5: Stop and obtain additional utility, survey, engineering or municipal direction.
The solution must maintain fence stability. Moving a post farther apart without reviewing the allowable panel span can create sagging, wind-loading or gate-alignment problems.
Red Flags Before Fence Installation
⚠ The contractor says a locate is unnecessary because the holes will be dug by hand.
⚠ The old fence is automatically treated as the legal property line.
⚠ The quote does not identify who confirms the fence line.
⚠ A survey pin is moved, covered or removed without qualified direction.
⚠ The homeowner is told that BC 1 Call identifies every private line.
⚠ Utility conflicts result in oral price increases without a written change order.
⚠ The contractor guarantees every proposed post location before reviewing underground information.
⚠ The crew begins digging before all notified facility owners have responded.
Metro Vancouver Site Conditions That Need Extra Attention
Vancouver: Older neighbourhoods may have narrow side yards, laneway-house services, shared fence lines, retaining walls and multiple renovations completed over several decades. Do not assume visible utility meters reveal every buried route.
Burnaby: Sloped lots, lane intersections, older fencing and retaining-wall transitions can make both the legal line and post position more complex. Burnaby’s official guide also warns against construction on rights-of-way and easements.
Coquitlam, Port Moody and Port Coquitlam: Grade changes, drainage, older cedar-fence replacement and retaining walls can affect the practical excavation area even where the fence line appears straightforward.
Strata and townhouse properties: The strata plan, limited common property, common property, utility drawings and council approval may all affect where a fence can be installed. A resident’s use of an outdoor area does not necessarily establish ownership of the land or underground services.
Fence position and permitted height should also be reviewed separately. See our Metro Vancouver fence height rules guide for city-specific planning considerations.
DIY Planning Versus Professional Installation
A homeowner can collect documents, photograph the site, find visible utility features and initiate a BC 1 Call request. Those steps are useful even when a professional contractor will install the fence.
Professional installation becomes more important where the project includes custom gates, concrete footings, retaining walls, steep grade, uncertain boundaries, private utilities, lane access or a conflict between the locate information and the proposed fence design.
The main DIY risk is not assembling the panels. It is committing post holes to the wrong positions without understanding the boundary, underground restrictions and structural effect of moving the posts.
For installation planning, old fence removal and site-specific quoting, review our Vancouver fence installation service.
Photos and Documents to Prepare
Send information that shows both the visible fence line and the conditions around it. A close photograph of one damaged panel is not enough to evaluate excavation responsibility.
☐ Wide photos of the entire existing fence line.
☐ Proposed gate locations and approximate widths.
☐ Gas, electrical and water meters.
☐ Utility covers, boxes, poles and visible markings.
☐ Existing survey, site plan or property documents.
☐ Visible survey pins or corner monuments.
☐ Retaining walls, concrete slabs and grade changes.
☐ Irrigation controls and known sprinkler locations.
☐ Known easements, rights-of-way or strata plans.
☐ Side-yard, lane and material-delivery access.
☐ Any previous utility, drainage or renovation information.
Reviewing completed installations can also help identify the level of post, corner and gate planning required. See MapleStar’s completed composite fence projects across Metro Vancouver.
Planning a Fence Installation in Metro Vancouver?
Send the existing fence line, access and property information before the quote is finalized.
Send your approximate fence length, gate count, city, existing fence photos and any available property, strata or utility information. MapleStar Fencing can review the installation scope and identify which site details should be confirmed before post excavation begins.
Call 604-500-3100
Call 778-318-8578
Send Photos for a Fence Quote
Frequently Asked Questions
Does BC 1 Call confirm the legal property line?
No. BC 1 Call provides information about participating underground facilities near the proposed excavation. Legal property boundaries are a separate issue and may require confirmation by a Registered BC Land Surveyor.
Who should request the utility locate for a fence installation?
A homeowner or contractor may initiate the request. The written quote should identify who submits it, marks the excavation area, monitors responses and communicates the resulting instructions to the installation crew.
Can fence digging start as soon as a BC 1 Call ticket number is received?
No. The ticket confirms that the request was submitted. Digging should not begin until every notified member has responded and the requestor has reviewed and complied with the applicable markings, plans, clearances and digging instructions.
Is a BC 1 Call locate request free?
The BC 1 Call request process is free for homeowners and contractors. A legal property survey or a private utility-locating service may involve a separate cost and should be identified independently in the project scope.
Does BC 1 Call identify private irrigation and homeowner-installed lines?
Not necessarily. Some private-property secondary or house lines are not identified by participating utility owners. Irrigation, landscape lighting and other owner-installed services may require additional information or a private locator.
Can the old fence be used as proof of the property line?
No. The old fence may provide useful layout information, but it may be leaning, offset or incorrectly positioned. Where the boundary cannot be confirmed reliably, a Registered BC Land Surveyor may be required.
Can a survey pin be moved to make room for a fence post?
No. Legal survey monuments should not be moved, removed or disturbed. If a marker conflicts with the proposed fence, stop and obtain qualified direction before changing the post or fence layout.
What happens if a utility conflicts with a proposed fence post?
The post or gate layout may need to change, or a different approved installation method may be considered. The contractor should follow the utility owner’s instructions, review the structural effect and document any price or scope change in writing.
What should a fence quote say about property lines and utility locates?
The quote should identify who requests the locate, who marks the excavation area, who confirms the property line, whether surveys and private locating are excluded, how utility conflicts are handled and how layout changes or additional costs will be approved.
Safety, boundary and quote disclaimer: This article provides general fence-planning information and is not legal, surveying, engineering or utility-owner advice. Property boundaries, easements, underground facilities and excavation instructions are site-specific. Follow the current BC 1 Call process, instructions from affected facility owners and advice from the appropriate municipality or qualified professional.
