Inside a Construction Manager’s Scope, Stage by Stage

A construction management firm is hired to act as the owner’s builder and the owner’s adviser at the same time. The engagement normally begins during design rather than after it, and that timing is the whole point of the model: the firm prices the work, tests whether it can be built as drawn, and sets the schedule while the drawings can still be revised at the cost of drafting time. On commercial and industrial projects in British Columbia and Ontario, the scope runs from the first order-of-magnitude cost plan through to the warranty review a year after occupancy. What follows is the full arc of that work, and where the boundary sits between what the construction manager takes on and what the owner keeps.

CM-at-risk and CM-as-agent are different contracts, not different jobs

Both models cover the same technical scope. The difference is who holds the trade contracts and who carries the money risk attached to them. Under CM-at-risk, the construction manager signs the subcontracts, takes on the prime contractor or constructor duties on site, and commits to a guaranteed maximum price. Cost above that ceiling is the construction manager’s exposure. Under CM-as-agent, the owner signs each trade contract directly and the construction manager works for a fee as the owner’s professional adviser and site administrator, running the same preconstruction, tendering and supervision processes without contractual exposure on trade pricing.

In Canada the two arrangements have their own standard forms. CCDC 5A covers construction management for services only, which is the agency model. CCDC 5B covers construction management for services and construction, which is the at-risk model, and trade contracts under an agency arrangement are commonly written on CCDC 17. Owners with experienced internal project staff and an appetite for direct risk tend to choose agency. Owners who want one accountable party, a cost ceiling and a single safety and insurance chain choose at-risk. Standard forms are almost always modified by supplementary conditions, so confirm the form and its amendments with your own counsel before signing anything.

Preconstruction: constructability review, budget and procurement strategy

Preconstruction is where a construction manager earns most of the fee, and it is the phase owners are most often tempted to compress. The firm reads the drawings and specifications the way a trade will read them at tender, then flags the conflicts, gaps and assumptions that would otherwise surface later as change orders. On industrial work the review concentrates on structure, slab tolerance and loading, power capacity, and equipment access. On commercial work it concentrates on base-building conditions, demising, code-driven exiting, and how mechanical and electrical distribution actually threads through the available ceiling space.

• Coordination conflicts between structural, mechanical, electrical and sprinkler layouts, particularly in tight ceiling plenums and above equipment platforms.
• Scope no trade has been asked to price, such as fire-stopping, seismic restraint, temporary heat, or patching after selective demolition.
• Long-lead equipment including switchgear, rooftop units, dock levellers, overhead doors and custom steel, where the order date drives the schedule more than the installation date.
• Site constraints covering crane and delivery access, laydown area, ground conditions, existing services, and how a live tenant or production line continues operating.
• Slab tolerance, joint layout and floor loading assumptions on industrial floors, where racking layout and forklift traffic set requirements the base drawings may not state.
• Permit, authority review and utility service timelines, which cannot be compressed by adding labour and therefore belong on the critical path from the outset.

Budgeting runs in parallel. Early estimates are order-of-magnitude and carry wide contingency because the design is thin. As drawings mature, the estimate is rebuilt from measured quantities and current trade pricing, and contingency comes down in step. A disciplined construction manager states the estimate class each time, shows what moved since the previous version and why, and keeps design contingency separate from construction contingency so the owner can see which reserve is being consumed. Escalation on materials and labour is carried as its own visible line rather than buried inside unit rates.

Trade tendering, buyout and the guaranteed maximum price

Tendering is not simply sending drawings to a list of names. The construction manager divides the work into trade packages with clean boundaries, so every square metre of scope belongs to exactly one contract and nothing falls into the space between two. Prequalification comes first: WorkSafeBC or WSIB standing, insurance limits, bonding capacity, COR status, comparable project experience and current backlog. A subcontractor who is technically capable but fully committed elsewhere is a schedule risk rather than a bargain, and buyout is the last moment at which that risk is cheap to avoid.

1. 01Split the work into trade packages and write scope documents stating inclusions, exclusions and interface responsibilities in plain language.
2. 02Prequalify bidders on safety record, compensation board standing, insurance, bonding capacity and genuinely available crew.
3. 03Issue the tender with a defined question period and answer every question by written addendum, distributed to all bidders at the same time.
4. 04Level the bids: strip out qualifications, add back missing scope, and compare like with like instead of comparing bottom lines.
5. 05Interview the shortlist on method, crew size, supervision and schedule commitment, then recommend an award with the pricing open to the owner.
6. 06Execute the subcontract and collect insurance certificates, clearance letters, safety documentation and shop drawing schedules before mobilization.

Under an at-risk contract the guaranteed maximum price is normally set once buyout is substantially complete, because a ceiling priced from incomplete documents is a ceiling built on allowances. The GMP is assembled from awarded subcontract values, remaining allowances, general conditions, contingency and fee. Owners should confirm in writing how unspent contingency and buyout savings are treated. Shared-savings clauses vary widely and are one of the few commercial terms that materially change the incentives on a job once construction is underway.

Scheduling and critical path control

The schedule is the project’s operating system. A construction manager builds a critical-path schedule that sequences trades, ties each activity to its predecessors, and identifies the chain of work where a single lost day moves the completion date. Activities off that chain carry float and can absorb some disruption. Activities on it cannot. Knowing which is which is the difference between a problem and an emergency, and it is the reason a resource-loaded schedule is worth more than a bar chart produced once for the kickoff meeting.

Practical schedule control means tracking three things every week: procurement dates for long-lead equipment, authority inspection and permit milestones, and actual trade progress measured against the baseline. When slippage appears, the useful response is a recovery plan with named actions and dates, not a quietly revised end date. Owner-side decisions belong on the schedule as well. Finish selections, equipment approvals and tenant sign-offs each have a required date, and when those dates are missed the resulting delay is the owner’s, which matters when the contract allocates responsibility for extensions of time.

Site supervision, safety administration and quality control

Supervision is the daily work of coordinating trades, sequencing access, resolving interferences, calling inspections, enforcing hold points before work is covered, and keeping the site clean enough to stay productive. Safety administration sits alongside it and is a legal function rather than a paperwork exercise. In British Columbia a multiple-employer workplace has a prime contractor responsible for coordinating health and safety across every employer on site, and the construction manager frequently holds that designation. Ontario uses the parallel concept of the constructor, who carries overall responsibility for health and safety on the project under provincial legislation.

• Registration and clearance with WorkSafeBC for British Columbia work and WSIB coverage for Ontario work, with subcontractor standing verified before mobilization.
• A written safety programme audited to COR standards, supported by site-specific hazard assessments, orientations, toolbox talks and documented corrective actions.
• Certificates of insurance naming the owner and, where required, the property manager and lender, issued before any trade sets foot on site.
• Incident reporting, first aid coverage matched to the site’s risk rating, and records kept in a form that survives an audit or a regulatory inspection.
• Controls for the hazards that dominate commercial and industrial work: fall protection, hot work, confined space entry, energized electrical work and mobile equipment.

RFIs, change orders and monthly cost reporting

Requests for information are the formal route for resolving what the documents do not answer. They are logged, dated, directed to the consultant who owns the answer and tracked to a response, because an unanswered RFI sitting on a critical-path activity eventually becomes a delay claim. Response time is worth measuring as a performance indicator on both sides of the contract. Site instructions and contemplated change notices follow the same discipline. Nothing is built on a verbal instruction, and nothing is priced after the fact when it could have been priced before.

Change orders should arrive with three things attached: cost, schedule impact and the source of the change. Owner-requested scope, design clarification, unforeseen site condition and code interpretation are different categories with different commercial consequences, and combining them makes the trend impossible to read. Monthly reporting ties the picture together: committed cost, cost to date, forecast to complete, contingency drawn, changes approved and pending, schedule status against baseline, safety statistics and the open items awaiting an owner decision. Owners should expect to receive the same report the construction manager runs the job from.

Payment, holdback and dispute regimes differ between British Columbia and Ontario

In British Columbia the Builders Lien Act governs holdback and lien rights. A percentage of the value of work performed is held back from each payment as security for lien claimants, and on head contracts above a statutory threshold that holdback must be kept in a separate account at a savings institution. Lien claims have to be filed within a defined period tied to certification of completion, abandonment or termination, and the holdback is released once that period passes without a claim. The periods are counted in days and are strict, which makes payment administration a scheduling matter as much as an accounting one.

Ontario’s Construction Act layers a prompt payment regime and interim adjudication on top of holdback and lien rules. Once a proper invoice is delivered, the owner has a fixed number of days to pay or to deliver a notice of non-payment, and the payment obligation then cascades down the contractual chain on further fixed periods. Adjudication allows a party to obtain a fast, interim binding determination of a payment dispute without waiting for litigation or arbitration. Both provinces amend these regimes periodically, so confirm the current periods, thresholds and notice requirements for your specific project with your own legal advisers.

Closeout, commissioning and the warranty year

Closeout is a deliverable with a defined scope, not a date on a bar chart. It covers deficiency identification and correction, commissioning of mechanical, electrical and life-safety systems, authority inspections and occupancy approval, and the handover package itself. That package should include as-built drawings reflecting what was actually installed, reviewed shop drawings, operating and maintenance manuals, equipment warranties with recorded start dates, spare parts and keying, air and water balancing reports, and training for the staff who will operate the building. Deficiency review starts before the trades demobilize, because an item found while the electrician is still on site costs a fraction of what it costs to bring that electrician back. A warranty review before the first year closes catches the items that only appear after a full heating and cooling season.

What the construction manager takes on, and what the owner keeps

No delivery model transfers everything. The owner always owns the business case, the budget authority, the design approvals and the decision to accept or reject a change. In most construction management arrangements the owner also holds the consultant agreements, which means the architect and engineers report to the owner rather than to the construction manager, and their field review remains their own professional responsibility. What shifts under an at-risk contract is trade risk, cost certainty above the ceiling, and the prime contractor or constructor duties on site. Under an agency contract those stay with the owner, and the construction manager supplies expertise, process and administration rather than a guarantee.