Roof Anchor Inspection in Ontario: Owner Scope Comparison
Scope a roof-anchor inspection from the activity and access system, not the anchor alone. Regulation 859 provides a competent-person inspection route for specified window-cleaning and sill work.[1] Construction projects can require engineer-prepared site-specific installation drawings and a professional engineer’s first-installation inspection and report even where inadequate fixed supports are not the issue.[6]

Identify the activity and Ontario regime
Before requesting quotes, establish:
- whether the activity is window cleaning, sill work, construction or restoration;
- whether it will use a suspended scaffold, boatswain’s chair, similar single-point suspension equipment or rope access; and
- whether the work forms part of a construction project.
For window cleaning using the specified suspended equipment—or for sill work—Regulation 859 requires the owner’s inspection scope to include all applicable anchor points and permanently installed suspended scaffolds.[1]
Rope access is permitted for window cleaning when the OHSA and applicable parts of Regulation 859 are met. Its working line and safety line must remain attached to separate, independent anchor points.[1]
IHSA’s summary of O. Reg. 213/91 covers suspended work platform systems and boatswain’s chairs used on construction and restoration projects, including roof plans, fixed supports, platform systems, inspections and equipment records.[4]
The regimes can overlap. When window cleaning occurs on a construction project, Ontario says Regulation 859 and O. Reg. 213/91 apply concurrently, with the provision offering workers the greater protection prevailing.[1] The inspection request should therefore identify both the activity and intended access system rather than ask only for “anchor certification.”
Decide whether the scope needs an engineer
Regulation 859 window-cleaning inspections
The owner must have all applicable anchors and permanently installed suspended scaffolds inspected before first use, as often as necessary, at least as often as the manufacturer recommends, at least annually and after notice of a defect or inadequacy.[1][2]
Ontario states that the competent person performing this inspection does not have to be a professional engineer.[1] An annual inspection should not automatically be priced as an engineering assessment.
The inspector’s qualifications are separate from the building’s design documents. AnchorPoint Inspections’ CSA-based guidance describes roof sketches containing system capacities, use restrictions and design standards, with drawings signed and sealed by a professional engineer.[2] A competent-person inspection does not supply missing design information.
Construction and restoration projects
O. Reg. 213/91 sections 141.6–141.8 distinguish generic and site-specific installation drawings. A site-specific drawing is required where the generic requirements cannot all be met or specified configurations apply; examples include tiered platforms and shielding that may increase wind loads.[6]
Under section 141.8, a professional engineer prepares the site-specific drawing, inspects the first installation before service and reports on conformity. The system cannot enter service without a conforming report. Following relocation, an engineer must approve deviations. With no deviation, a professional engineer or appropriately trained designated competent worker may inspect and report; an installation with an approved deviation requires an engineer’s inspection and report. Keep the drawing, approved deviations and reports at the project.[6]
For the generic-drawing route, section 141.7 requires the appropriately trained designated competent worker’s conformity inspection and written report before first service and after relocation.[6] Keep routine maintenance and daily pre-use duties in the scope as well.[4] These project duties are separate from Regulation 859’s competent-person anchor inspection; avoid describing them as a universal annual engineering certificate.
Assemble the roof and anchor records
Give each bidder the same package:
- the intended activity and access equipment;
- the roof plan or anchor sketch, structural or design drawings, and manufacturer information;
- previous inspection records; and
- available repair and modification records.
For window cleaning, AnchorPoint’s Ontario and CSA summary describes a pre-work sketch identifying suitable anchor points and related structures. Its listed content includes structural members, approach anchors, installation details, safe working loads, use restrictions, obstructions, anchor spacing, window locations, component capacities and materials, design standards and a self-rescue plan.[2]
For construction work, IHSA’s summary identifies a roof plan showing fixed supports, posted near the roof entrance and provided to the constructor, together with applicable engineering drawings or written procedures.[4]
Assigning each anchor or fixed support a unique owner-controlled identifier helps connect the roof plan, inspection records, defect notices and repair evidence. Safe working loads and use restrictions from the roof plan can then be checked against the proposed access configuration.[2]
Maintain the inspection logbook
The owner must maintain and retain the Regulation 859 logbook for as long as the anchors and permanently installed suspended scaffolds remain in use.[1][2]
Ontario’s guidance identifies these required entries:
- the date of each inspection;
- the inspector’s name and signature; and
- every modification or repair, including its date and the name and signature of the person who completed it.[1]
For construction equipment, IHSA’s summary says permanent logs follow CSA Z271-10, clause 13, record inspections, tests, repairs, modifications and maintenance, and remain available to an inspector on request.[4]
Useful additional fields include the roof-plan identifier, findings, defect severity, temporary restrictions, photographs, closure status and next inspection date. The cited Ontario guidance does not identify these as express Regulation 859 logbook fields.[1][2]
Document defects through return to service
- Notify the owner: An employer, supervisor or worker who believes an anchor or related structure is defective or inadequate must notify the building owner immediately.[1]
- Record a use restriction: Identify the affected anchor and access configuration, and provide the restriction to the contractor. AnchorPoint’s summary describes repair and suitability before use as the return-to-use threshold for a faulty anchor.[2]
- Inspect and assess: Notification triggers the owner’s inspection duty under Regulation 859.[1] For construction or restoration work involving inadequate fixed supports, IHSA’s summary calls for owner-supplied structural information and engineer-prepared design drawings and written procedures.[4]
- Repair and update the logbook: Record the repair date and the responsible person’s name and signature.[1][2]
- Close the defect: Obtain a record identifying the anchor and supporting its suitability for the intended access configuration before reinstatement.[2]
Ontario’s cited guidance does not prescribe a standard reinstatement certificate or make defect severity, temporary restrictions and closure status express Regulation 859 logbook fields.[1][2]
Compare service and recordkeeping options
The options below address different gaps: defining inspection requirements, combining inspection with engineering, or managing records and defects.
AnchorPoint Inspections
Published scope: The cited page provides Ontario regulatory and CSA guidance covering inspections, logbooks and roof sketches.[2]
Suited to: Defining expected inspection, logbook and roof-sketch deliverables.[2]
Evidence limit: The cited page does not describe a distinct paid service package or service area.[2]
HITE Engineering
Published scope: HITE advertises annual inspections, engineering assessment and certification, retrofit and upgrade design, controlled load testing where required, and system-layout review.[3]
Suited to: Combined inspection, engineering or retrofit support in Ontario.[3]
Evidence limit: The cited article is dated May 4, 2026 and does not publish commercial terms; confirm the services and terms currently offered.[3]
SiteClara
Published scope: SiteClara advertises QR posters, optional NFC tags, time-place-person records, photographs, scheduled checks, missed-check status, open-defect tracking and supervisor-approved reports.[5]
Suited to: Organizing location-based inspection and defect records.[5]
Evidence limit: SiteClara states that it does not replace a competent person’s anchor inspection and is not the anchor logbook required by Ontario’s window-cleaning regulation; it also does not publish service-area limits.[5]
What to confirm with each provider
The cited provider pages do not publish inspection prices, payment or cancellation terms, turnaround times, insurance details, accreditation information, sample-report contents or testing exclusions; request these in writing with each quote.
- the legal entity and geographic service area;
- the inspector’s qualifications and insurance;
- the included anchors, fixed supports and access equipment;
- the inspection method and basis for any testing;
- testing exclusions and conditions requiring engineering;
- roof-plan corrections, photographs and signed records;
- defect restrictions, post-repair assessment and closure evidence;
- a sample report and logbook update;
- turnaround time, price and payment terms; and
- contract eligibility and cancellation terms.
Require each quote to identify the activity, applicable regime, asset identifiers, included equipment, inspector qualifications, engineering role and return-to-service process.[1][2][4] Use the competent-person route where it matches the activity and available documentation; add engineering or project-system services when the installation-drawing route, system configuration, relocation, support adequacy or other applicable requirement calls for them.[1][6]
References
- Achieve compliance in window cleaning operations | ontario.ca (ontario.ca)
- Legislation/Responsibilities – AnchorPoint Inspections (anchorpointinspections.ca)
- Roof Anchor Inspections in Ontario: Requirements, Frequency, and Compliance Guide – HITE Engineering (hite-engineering.com)
- Suspended Work Platform Systems and Boatswain's Chair – Responsibilities | IHSA Construction Safety App (ihsa.ca)
- Roof inspection checklist for commercial buildings in Canada – SiteClara (siteclara.com)
- Ontario — O. Reg. 213/91 Construction Projects, sections 141.6–141.8 (ontario.ca)