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Final Payment and Construction Deficiencies in Ontario
Ontario construction contractsFinal paymentDeficiencies, holdback + closeout
Final Payment and Construction Deficiencies in Ontario
Final payment should follow a documented closeout process—not a rushed walkthrough and a promise to return later. The homeowner must separate the final contract balance, statutory lien holdback, incomplete work, defective work, unresolved pricing, closeout documents and warranty items before deciding what is actually payable.
4 amountsMust be kept separate
8 stepsFinal inspection process
12 recordsBefore releasing money
1 ruleRetain only what can be justified
Do not use statutory holdback as a permanent deficiency fund.
Ontario’s Construction Act holdback protects lien exposure. A separate deficiency retention must come from the contract, a valid set-off or another legal right and should be reasonably connected to the actual correction cost.
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Include the contract, approved changes, payment ledger, holdback calculation, inspection reports, deficiency list, closeout requirements and proposed release.
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Four different amounts people wrongly combine
Final progress paymentThe amount contractually due for completed work, approved changes and reconciled allowances—before statutory holdback and valid set-offs.
Statutory holdbackThe Construction Act retention for lien exposure. It is not a permanent repair account and cannot simply be converted into deficiency money.
Deficiency retentionA separate, contractually supported and reasonably valued amount for identified incomplete or defective work.
Warranty claimA post-completion remedy for covered defects. Warranty rights do not automatically justify withholding every unpaid dollar indefinitely.
One cheque should not hide four different calculations. The final statement should show the undisputed contract balance, statutory holdback, deficiency retention, unresolved changes and credits on separate lines.
Six categories for every outstanding item
Incomplete workWork included in the contract that has not been supplied: missing trim, incomplete landscaping, uninstalled fixtures or unfinished commissioning.
Defective workWork supplied but not meeting the contract, applicable standard, approved sample or required performance.
DamageScratches, chips, stains, breakage or other physical damage that should be documented before possession or handover.
Unapproved substitutionA different product, colour, model or system installed without the required consent or equal-or-better proof.
Unresolved change pricingWork may be complete, but the change-order entitlement, quantity, markup or credit remains disputed.
Warranty itemA defect discovered after possession or completion that may be handled through the contract warranty or Tarion process where applicable.
Eight-step final inspection and payment process
1Assemble the contract baselineBring drawings, specifications, approved changes, selections, allowances and previous deficiency lists.
2Inspect room by roomRecord exact location, condition, dimensions, photographs and contract reference for each item.
3Separate incomplete from defectiveMissing work and incorrect work should not be mixed with maintenance, owner damage or future warranty concerns.
4Classify urgencyIdentify safety, water entry, code, security and system-operation concerns before cosmetic items.
5Value each item reasonablyUse the probable cost to complete or correct, including access and related restoration—not an arbitrary penalty.
6Set correction datesAssign access dates, product lead times, responsible trade and a practical completion deadline.
7Reinspect completed itemsClose each line only after correction, cleaning, testing and photographic confirmation.
8Reconcile final paymentShow contract balance, credits, deficiency retention, statutory holdback, taxes and amount actually payable.
How to calculate a reasonable deficiency retention
Incomplete itemMissing CAD $2,500 appliance installation plus CAD $500 coordination and restoration.
Reasonable starting retention: CAD $3,000Defective finishQualified replacement estimate is CAD $4,000, including removal, disposal and repainting.
Use documented correction cost—not contract-wide percentageMultiple itemsEight documented items have a combined reasonable correction cost of CAD $12,000.
Itemized retention: CAD $12,000, subject to contract rightsStatutory holdbackIllustrative finishing work of CAD $40,000 supplied after substantial performance.
Separate finishing holdback: CAD $40,000 × 10% = CAD $4,000These are illustrations, not Ontario legal formulas. The contract, seriousness of the breach, access cost, urgency, lien rules and actual repair evidence determine what can properly be withheld.
Substantial performance is not final completion
| Milestone | What it generally means | What may still remain |
|---|---|---|
| Occupancy | The building may be legally or practically usable, subject to municipal conditions and project facts. | Seasonal work, landscaping, exterior finishes, deficiencies, documentation and warranty items. |
| Substantial performance | For Construction Act purposes, the improvement is ready for intended use and remaining completion or known-defect correction cost fits the statutory 3%-2%-1% formula. | Finishing work, incomplete items, deficiency correction and finishing holdback. |
| Contract completion | The contract’s stated completion obligations have been supplied, subject to the exact agreement. | Minor deficiencies, warranty obligations, lien expiry and closeout administration. |
| Deemed completion | For Construction Act purposes, completion, known-defect correction or last-supply cost is no more than the lesser of 1% of contract price and CAD $5,000. | Warranty claims and other contract rights may still remain. |
| Final payment | The contract’s financial closeout after reconciliation of scope, changes, credits, deficiencies, holdback and documents. | Express surviving warranties, latent-defect rights and properly reserved claims. |
Twelve records to review before paying
1
Signed contract and schedules
Establishes the original scope, final-payment trigger, correction process and release wording.
Establishes the original scope, final-payment trigger, correction process and release wording.
2
Approved change orders
Separates authorized additions and credits from verbal or disputed work.
Separates authorized additions and credits from verbal or disputed work.
3
Current payment ledger
Contract price, changes, deposits, invoices, payments, statutory holdback and balance.
Contract price, changes, deposits, invoices, payments, statutory holdback and balance.
4
Dated deficiency list
Unique item number, location, description, category, responsible party and status.
Unique item number, location, description, category, responsible party and status.
5
Photographs and video
Wide view plus close-up, scale reference and date for every material condition.
Wide view plus close-up, scale reference and date for every material condition.
6
Consultant reports
Architect, engineer, designer, inspector or commissioning report where technical review is needed.
Architect, engineer, designer, inspector or commissioning report where technical review is needed.
7
Contractor response
Accepted, disputed or proposed correction for each deficiency item.
Accepted, disputed or proposed correction for each deficiency item.
8
Repair estimate
Reasonable third-party cost to complete or correct unresolved work when valuation is disputed.
Reasonable third-party cost to complete or correct unresolved work when valuation is disputed.
9
Inspection and permit records
Outstanding municipal, electrical, septic or other required approvals and final inspections.
Outstanding municipal, electrical, septic or other required approvals and final inspections.
10
Warranty documents
Manufacturer registrations, manuals, commissioning, test results and transfer documents.
Manufacturer registrations, manuals, commissioning, test results and transfer documents.
11
Lien and holdback records
Annual release notices, substantial-performance publication, lien searches and legal advice.
Annual release notices, substantial-performance publication, lien searches and legal advice.
12
Closeout package
As-builts, keys, codes, attic stock, warranties, certificates, manuals and final account.
As-builts, keys, codes, attic stock, warranties, certificates, manuals and final account.
Owner self-help and back-charges
- Read the cure clause: The contract may require written notice, a defined correction period and an additional default notice before another contractor can be hired.
- Give access: Except in urgent safety or damage-prevention situations, the original contractor should usually receive a reasonable opportunity to inspect and correct.
- Define the scope: The replacement contractor’s work should match the original deficiency rather than become an upgrade or unrelated renovation.
- Use reasonable cost: Obtain competitive or technically justified pricing and keep invoices, photographs, labour records and proof of payment.
- Mitigate damage: Take reasonable steps to prevent water, safety or property damage while preserving evidence and notice rights.
- Do not double recover: A back-charge should not include work already credited, paid by insurance, covered by another trade or betterment beyond the original contract.
Hiring another contractor too quickly can weaken the claim.
The original contractor may argue it was denied the contractual opportunity to inspect or correct. Emergency protective work should still be documented and communicated promptly.
Bad wording versus controlled wording
Bad: all money held until perfection
“The Owner may withhold the entire unpaid balance until every deficiency, warranty concern and item of dissatisfaction has been corrected to the Owner’s sole satisfaction.”
Better: itemized and proportionate closeout
“Before final payment, the parties shall complete a written deficiency and incomplete-work schedule identifying each item, correction responsibility and target date. The Owner may retain only amounts permitted by the Contract or law, including statutory holdback and a separately stated amount reasonably related to the cost of unresolved incomplete or defective work. Undisputed amounts shall be paid when due. As each item is corrected, the related deficiency retention shall be released, subject to statutory holdback and any properly reserved claim. Final payment does not waive express warranties, latent-defect rights or claims specifically identified in writing.”
Educational example only. An Ontario lawyer should adapt withholding, set-off, cure, back-charge, release and surviving-rights language to the actual project.
Never sign a broad final release just to obtain keys, manuals or the last inspection.
Upload My Final DocumentsUpload the contract, final invoice, deficiency list and release. The Free Scan finds the biggest issue; the Full Review is $99.99.
Eight final-payment red flags
!
Final payment demanded before the final inspection
The owner is asked to give up leverage before incomplete and defective work is recorded.
The owner is asked to give up leverage before incomplete and defective work is recorded.
!
Entire unpaid balance withheld for minor items
The retention is punitive and unrelated to the probable correction cost.
The retention is punitive and unrelated to the probable correction cost.
!
Statutory holdback treated as deficiency money
Lien protection is mixed with contract performance disputes.
Lien protection is mixed with contract performance disputes.
!
Occupancy called final completion
The building can be occupied while exterior, seasonal, documentation or deficiency work remains.
The building can be occupied while exterior, seasonal, documentation or deficiency work remains.
!
Deficiency list has no values or dates
There is no objective release formula or correction schedule.
There is no objective release formula or correction schedule.
!
Owner hires replacement trades immediately
The contractor may not have received required notice, access or opportunity to correct.
The contractor may not have received required notice, access or opportunity to correct.
!
Broad final release signed too early
The owner waives unknown claims, warranty rights or disputed credits without understanding the wording.
The owner waives unknown claims, warranty rights or disputed credits without understanding the wording.
!
Tarion PDI treated as the warranty claim
The PDI records condition; unresolved items generally must also be submitted through the applicable warranty form.
The PDI records condition; unresolved items generally must also be submitted through the applicable warranty form.
Ontario Construction Act and Tarion checks
- Substantial performance: Ontario’s statutory test requires the improvement or substantial part to be ready for intended use and the remaining completion or known-defect correction cost to fit the 3%-2%-1% formula.
- Finishing holdback: After substantial performance, a separate 10% holdback applies to remaining services or materials as they are actually supplied.
- Deemed completion: The Act uses the lesser of 1% of contract price and CAD $5,000 for completion, correction of a known defect or last supply.
- Abandonment or termination: Statutory holdback cannot be used for replacement work or another claim until liens against that holdback have expired or been dealt with as required by the Act.
- Renovation payment: Ontario advises homeowners not to pay the full contract amount before the work is completed and to use written payment schedules and signed changes.
- Tarion PDI: For eligible enrolled new homes, the PDI records items that are incomplete, damaged, missing, inaccessible or not operating properly before possession.
- PDI is not the claim: Tarion states that the PDI Form is not a request for warranty service. Unresolved covered items should be submitted through the applicable warranty claim process.
- Performance standards: Tarion’s Construction Performance Guidelines provide benchmarks used to assess many workmanship and material deficiency disputes for eligible new homes.
Tarion does not cover every custom home, renovation or deficiency.
The PDI and statutory-warranty discussion applies only to eligible homes enrolled in Ontario’s new-home warranty program. Contract rights and ordinary legal remedies may differ.
Official references: Ontario Construction Act, Ontario renovation rights, Tarion pre-delivery inspection, and Tarion Construction Performance Guidelines.
Twenty-four questions before final payment
1
Does the contract define final completion?
2
What event triggers final payment?
3
Has all original scope been supplied?
4
Are all approved changes complete?
5
Have deleted items been credited?
6
Are allowances reconciled?
7
Are permits and inspections complete?
8
Are occupancy conditions outstanding?
9
Has a final walkthrough occurred?
10
Is every deficiency numbered and photographed?
11
Which items are incomplete?
12
Which items are defective?
13
Which items are owner damage or maintenance?
14
What is the reasonable correction cost?
15
Has the contractor accepted each item?
16
What correction dates were agreed?
17
Has access been offered?
18
Has the contractor had a reasonable opportunity to correct?
19
Is any self-help right available?
20
Are back-charges documented?
21
What statutory holdback remains?
22
Has lien-release timing been legally reviewed?
23
What warranty rights must survive payment?
24
What releases or closeout documents are still missing?
Contract Centre and related guides
Final payment and deficiencies FAQ
Can I withhold final payment for construction deficiencies in Ontario?
Possibly, if the contract permits withholding or set-off and the amount is reasonably connected to incomplete or defective work. Withholding the entire balance for small items can create its own payment dispute.
How much money can I retain for deficiencies?
There is no universal Ontario deficiency percentage. A defensible amount is usually tied to the probable cost of completing or correcting identified items, including reasonable access and restoration costs, subject to the contract.
Is the 10% construction holdback meant to pay for deficiencies?
No. Statutory holdback protects potential lien claims. A separate deficiency retention must be supported by the contract and the actual value of unresolved work.
Does occupancy mean the contractor is entitled to final payment?
Not automatically. Occupancy, substantial performance, final completion and the contract’s final-payment milestone are different concepts. The contract and remaining work must be reviewed.
Can I hire another contractor and deduct the cost?
Only after reviewing the contract’s notice, cure, access, termination and self-help provisions. Except for urgent protective work, the original contractor should usually receive clear notice and a reasonable opportunity to correct.
Should I sign a final release when making payment?
Read it carefully. A release can waive disputed changes, delay claims, deficiency claims or unknown rights. Warranty and latent-defect rights should not be surrendered accidentally.
Does a Tarion PDI list count as a warranty claim?
No. Tarion says the PDI records the home’s condition before possession but is not itself a request for warranty service. Unresolved covered items should be submitted on the applicable warranty form.
Should I release final payment before receiving manuals and warranties?
Only if the contract does not make those documents a condition of payment and the remaining risk is otherwise protected. Closeout documents should ideally be listed as required deliverables.
Final payment should close the account—not erase unresolved work
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Reviewed July 30, 2026. General educational information only. This page is not legal advice, a deficiency valuation, a lien-release opinion or a warranty decision.
