Most payment and scope disputes do not need a lien or a lawsuit — they need to be caught at the first rung of a ladder before they climb there on their own.
Key takeaways
STEP 01 OF 10
The first rung of the ladder is not a legal step at all: a site-level disagreement about quantities, scope or a change order should reach a named decision-maker — the PM, not whoever answered the phone — within a stated number of business days. See setting up a change management process for how a scope disagreement should be documented before it becomes a payment dispute at all.
A dispute that sits unaddressed at site level for weeks is not staying small — it is accumulating the missed invoices, the unanswered emails and the verbal promises that later make it harder to prove exactly when the disagreement actually started.
STEP 02 OF 10
Alberta's regulator is explicit that a dispute notice must include the specific amount being withheld and the specific reasons, not a general objection. See a payment application cycle that runs itself for the template this should come from. A vague dispute notice invites exactly the kind of drawn-out back-and-forth this ladder exists to skip.
Treat the notice as the formal record of what is actually in dispute — the version a mediator or adjudicator will read later, not an internal venting email that happens to have been sent to the other side.
STEP 03 OF 10
A short, structured negotiation — a call or meeting with a fixed agenda, followed by a written record of what was agreed or not agreed — resolves a large share of construction payment disputes without needing a formal process at all. The written record matters even when the negotiation fails: it is what shows, later, that the parties tried to resolve the dispute before either side escalated further.
This step should have a deadline too — a week, not a month. A negotiation with no time limit is not a negotiation, it is a delay tactic wearing a cooperative label.
STEP 04 OF 10
In Ontario, construction adjudication is a fast, interim-binding dispute resolution process built into the Construction Act specifically for construction payment disputes, designed to keep cash flowing on a live project. It is available as a right — a party can commence an adjudication without the other party's consent. The determination is binding immediately, but only on an interim basis: either side can still pursue full litigation or arbitration afterward if it wants a final answer.
That interim-binding nature is the point, not a flaw: adjudication exists to stop a payment dispute from stalling a live project for the months or years a full court process would take, while preserving each side's right to revisit the outcome later.
STEP 05 OF 10
ODACC publishes real procedural day counts, unlike its own prompt-payment page. If the parties' agreed Registry Adjudicator does not consent within 4 days of the notice of adjudication, the requesting party asks ODACC to appoint one, which happens within 7 days. The claimant's supporting documents are due within 5 days of the adjudicator being appointed, and the determination follows within 30 days of that submission — a fastest-case total of 42 days from notice to determination, with ODACC certifying it within 7 more days after that.
Every one of those numbers is ODACC's own published figure, cited under O. Reg. 264/25, the current adjudication regulation — not an estimate. Build the internal calendar around them the same way step five in the payment-cycle guide builds one around Alberta's prompt-payment clock.
STEP 06 OF 10
ODACC's fee schedule, approved by the Attorney General on 1 October 2025, runs on the amount claimed: a $25,000–$34,999 dispute carries a flat $2,700 fee, split equally between the parties by default under s.13.10(3) — $1,350 each, plus HST. Larger amounts move to an hourly rate rather than a flat fee. See the full fee schedule.
Each party bears its own costs of the adjudication regardless of outcome under s.13.16, unless the adjudicator shifts costs for conduct that was frivolous, vexatious or in bad faith under s.13.17 — a real financial disincentive against escalating a dispute purely to apply pressure.
STEP 07 OF 10
For a dispute under $50,000, terminating an adjudication within 15 days of the adjudicator's appointment costs 50% of the fee otherwise payable; after 15 days, it costs the full 100%. That structure rewards a party that genuinely settles early and penalizes one that starts an adjudication and then stalls once it realizes the determination is going the other way.
This is worth stating plainly to the other side at the negotiation step — knowing the cost of backing out changes how seriously a threatened adjudication is taken on both sides of the table.
STEP 08 OF 10
A lien exists to secure the claim, not to punish the other side — and Ontario's own guidance is explicit that missing the lien deadline does not end the right to sue for the money owed, it only loses the security. Treat the 60-day preservation deadline as the trigger for registering a lien, not the size of the disagreement. A wilfully exaggerated lien, or one registered knowing there is no basis for it, exposes the claimant to liability for the damage it causes.
This is where the escalation ladder and the lien calendar have to talk to each other — see standing up a scheduling function for how those dates get tracked so a dispute in negotiation does not accidentally run past a hard statutory deadline.
STEP 09 OF 10
British Columbia's Builders Lien Act contains no statutory adjudication regime — a payment dispute on a BC project escalates from negotiation directly to litigation, or to whatever dispute mechanism the contract itself specifies. A firm building one national escalation template needs to flag this gap explicitly for BC projects rather than assuming the Ontario or Alberta rungs exist everywhere.
Alberta runs its own adjudication regime through two Nominating Authorities, ARCANA and ADACC, under the Prompt Payment and Construction Lien Act — broadly similar in structure to Ontario's, but with its own 30-day time limit to commence adjudication after final payment under s.33.4(2). Do not assume Ontario's timelines apply there.
STEP 10 OF 10
Whether the dispute resolves at negotiation, adjudication or a full lien claim, the file should end with a written record of the outcome and the reasoning — not just a payment landing in the account. That record is what a firm's next dispute gets measured against, and what tells you, six months later, whether the escalation ladder is actually working or just getting used as a formality.
A firm that tracks how many disputes resolve at each rung of the ladder — internal, negotiation, adjudication, lien — has a genuine management metric. A firm that does not track it is guessing whether its own process helps.
Registering a lien as a first move instead of a last resort. A wilfully exaggerated lien, or one with no basis, creates its own liability — the deadline should force the timing, not the temperature of the dispute.
Assuming Ontario's adjudication timeline applies in Alberta or that any timeline applies in British Columbia. Alberta runs its own regime with its own 30-day commencement limit; BC has no statutory adjudication regime at all.
Sending a vague objection instead of a proper notice of non-payment with a stated amount and reasons. A vague objection does not do the work a proper notice does, and it weakens the record if the dispute later escalates.
Threatening adjudication without budgeting the fee or knowing the early-termination cost. A party that starts an adjudication it cannot afford to see through pays the full termination fee after day 15 for the privilege of backing out.
Letting a negotiation run with no deadline. An open-ended negotiation is not a resolution step, it is a way for a lien or adjudication deadline to quietly pass.
ODACC publishes enough real numbers to build this out in full, unlike the unpublished prompt-payment clock.
The timeline. Notice of adjudication goes out on day 0. If a Registry Adjudicator is appointed by ODACC (rather than agreed between the parties), that happens within 7 days. The claimant's supporting documents are due 5 days after that — day 12. The adjudicator has 30 days from document submission to issue a determination — day 42. ODACC then certifies the determination within 7 more days — day 49 at the outside, for the fastest path through the process.
The fee. A $32,000 dispute falls in the $25,000–$34,999 band: a flat $2,700 fee, split equally — $1,350 per side, plus HST. If one party terminates the adjudication within 15 days of the adjudicator's appointment, its share of that termination cost drops to $1,350 total instead of the full fee; after day 15, the full fee applies regardless of how the process ends.
Both figures come directly from ODACC's own published fee schedule and procedural timings, not an estimate — the actual timeline on a specific file depends on whether the parties agree an adjudicator without ODACC's involvement, which can be faster still.
The escalation ladder looks different depending on which province the project sits in — not just in timing, but in whether a whole rung exists at all.
A national escalation template that assumes an adjudication rung exists everywhere will mislead a BC project team into expecting a fast, statutory off-ramp that simply is not there.
No — an adjudicator's determination in Ontario and Alberta is binding immediately but interim only. Either party can still pursue litigation or arbitration afterward for a final resolution.
Yes, provided the agreement is in writing and discloses the terms and fee, and the adjudicator's fee amounts to an hourly rate of at least $1,000 under O. Reg. 264/25 s.21 — otherwise the default appointment process applies.
ODACC's fee schedule starts at amounts under $9,999, so there is no published minimum — the process is available for small disputes as well as large ones.
Adjudication is available as a right and can proceed without the other party's consent — silence does not stop the process, it just means the non-responding side loses the chance to shape it.
A 30-minute call is enough to tell you whether it is worth building.
