Fencing and decking looks like the easiest trade on this hub to hand to AI: small footprint, simple materials, a job most homeowners can picture from a photo. The quoting part is genuinely easy. What determines when the crew can actually put a shovel in the ground is two separate clocks running in parallel — a building permit and a utility locate — and a tool that only automates the quote misses both of them.
Key takeaways
Take the quote itself first, because it really is straightforward. A fence line or a deck footprint can be measured from a property survey, a satellite image or a couple of site photos with a tape measure in frame, and priced by linear metre of fence or square metre of deck surface plus a fixed allowance for footings, stairs and railing runs. None of that is where a fencing or decking business loses time. The two things that actually decide when the crew shows up are a permit clock and a locate clock, and they run on different rules from each other.
Ontario’s Home Construction Regulatory Authority is explicit that building a fence or a deck is one of the activities the Ontario Underground Infrastructure Notification System Act, 2012 covers — if the job involves digging, a locate request is mandatory, full stop, regardless of how shallow the footing is. Ontario One Call’s own guidance states the request must go in at least 5 business days before digging, and that infrastructure owners then have up to 5 business days to complete a standard single-address locate, or 10 business days for an advanced request — with no guarantee it lands sooner than that ceiling. A quoting tool that promises a homeowner “we can start Tuesday” without checking whether a locate has even been requested is promising a date the trade doesn’t control.
Whether a deck needs a building permit at all depends on its height above grade and whether it’s attached to the house — that threshold is set locally, and a contractor should confirm it with the municipal building department rather than assume a national rule applies. Where a permit is required, Ontario’s Citizens’ Guide to Land Use Planning states a municipality must issue or refuse a house-category permit application within 10 days of a complete submission, longer for complex buildings, and must respond to an inspection request within two working days. That 10-day figure is a maximum on a complete application — an incomplete one simply doesn’t start the clock, which is the most common reason a homeowner’s “the permit is taking forever” complaint turns out to be a missing document, not a slow municipality.
Worked example — sequencing the two clocks
A deck contractor submits a complete permit application on day 1. If they wait for permit approval before requesting a utility locate, the sequence is strictly serial: 10 business days for the permit, then at least 5 more business days of locate lead time — 15 business days minimum before the first footing hole can legally be dug.
If the locate request goes in the same day as the permit application — entirely legal, since the two processes don’t depend on each other — the locate is very likely complete well inside the 10-day permit window, since a standard request has a 5-business-day ceiling. Footings can then start the day after permit approval: day 11 instead of day 15, a four-business-day saving with no cost and no rule broken.
The only way to lose that saving is to not know both clocks exist, which is exactly what happens when a quoting tool treats “book the job” as a single step instead of two independent approvals that can run side by side.
A fence built even a few centimetres over a property line, or across a registered utility easement, can force a rebuild months after the crew has moved on. Treadstone Law’s guidance on fencing an area covered by a utility easement in Ontario covers exactly this scenario: an easement holder can require a fence built across their easement to be removed or modified, independent of whether the fence otherwise complies with the local zoning bylaw. A survey pin check and an easement search belong in the same pre-dig checklist as the locate request, not treated as a separate legal question raised only if a problem shows up later.
A deck footing has to sit below the local frost line, and that line is not the same number from coast to coast — a footing depth that’s standard in coastal British Columbia can be badly undersized on the Prairies, where deeper frost penetration is normal. The National Research Council’s Codes Canada group publishes and administers the National Building Code that provinces adapt into their own building codes, but the specific frost-depth figure that applies to a given footing is set locally and should be confirmed with the municipal building department rather than assumed from a neighbouring region or a memory of the last job. A quoting tool that hard-codes one footing depth for every job in the country will eventually be wrong somewhere.
Given that shape, the highest-value AI use for a fencing and decking business isn’t the measurement — it’s a scheduling assistant that opens both clocks the moment a contract is signed, tracks the locate request and permit application as two independent items with their own status, and flags the earliest legal dig date automatically rather than leaving a crew lead to work it out manually from two different portals. A photo-based quantity takeoff for materials is a reasonable second use, provided the waste allowance accounts for railing runs and stair stringers separately from flat deck surface, since those don’t scale the same way per square metre.
Related reading: pool builders’ own permit and deposit rules and how excavation contractors handle the same locate requirement at a larger scale.
Yes. Ontario’s Home Construction Regulatory Authority confirms building a fence or deck is covered by the Ontario Underground Infrastructure Notification System Act, 2012 — a locate request through Ontario One Call is mandatory before any digging, regardless of depth.
The request must go in at least 5 business days before digging. Infrastructure owners then have up to 5 business days to complete a standard single-address locate, or 10 business days for an advanced request — those are legal ceilings, not guarantees of a faster turnaround.
Ontario’s Citizens’ Guide to Land Use Planning states a municipality must issue or refuse a complete house-category permit application within 10 days, with a two-working-day response window for inspection requests once construction is underway.
No — the two processes are independent and running them in parallel is standard practice. It typically saves several business days compared with waiting for permit approval before requesting the locate.
A 30-minute call is enough to tell you whether AI pays for itself here.
