7 mistakes to avoid when hiring a school renovation contractor
How to use this checklist
This checklist is written for facilities managers, procurement officers, and school board project leads who need a practical shortlist for hiring a school renovation contractor. Run each of the seven checks below against every bid you receive and require documentary proof with the submission package. If a bidder fails two or more checks, treat them as high risk and request clarifications or replacement bidders before awarding work.
The seven checks to run on every bid
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1) Accepting a bidder without proven institutional experience and portfolio
Do not rely on a generic commercial portfolio when your project requires working in an educational setting. Schools need contractors who can demonstrate completed institutional projects that show durable finishes, phased sequencing, and respect for occupied environments. What to request: at least two project case studies or annotated site photos showing the finished work, the client organisation name, the scope (for example classroom retrofit, washroom upgrade, or cafeteria build-out), and a named reference you can call to confirm performance.
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2) Awarding work on a vague scope or without a phased plan for occupied schools
A common cause of disruption and delay is awarding a contract without a clear, phased execution plan. For occupied schools insist on a scope of work that defines trade sequences, access zones, and start and finish milestones by area. What to request: a phased schedule showing which trades will be on site each day, containment measures for dust and noise, and a contingency plan for unexpected classroom use or IT outages.
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3) Not checking insurance, WSIB coverage, and bonding where required
Failing to verify insurance and workplace coverage exposes your board to financial and liability risk. Require an up-to-date certificate of general liability insurance and proof of worker coverage such as WSIB clearance or an equivalent. If your procurement rules or contract call for performance bonds, request proof of bonding capacity up front. Keep certified PDFs of these certificates with the bid evaluation file.
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4) Choosing the lowest-price bid that lacks a line-item breakdown or realistic schedule
Lowest total price alone can hide omissions. Require a trade-by-trade cost breakdown and a day-by-day critical path for milestones. Compare labour-hour assumptions and material allowances, not just the lump-sum number. What to request: a line-item estimate, unit costs for key finishes, and the contractor’s assumptions about site access windows and subcontractor lead times.
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5) Overlooking site-specific health, safety, and security measures
Occupied-school projects change the risk profile because students, staff, and contractors share the site. Demand a site-specific health and safety plan that describes exclusion zones, PPE rules, dust and lead-control measures, and background-check policy for tradespeople. What to request: a written health and safety plan, evidence of worker training, and the contractor’s procedure for controlling access and escorting visitors.
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6) Hiring a contractor without a single-point project manager for trade coordination
Multiple subcontractors need clear, daily coordination. Require the name and role of the project lead who will manage trades, inspections, and communications. That person should have decision authority and a published on-site schedule. What to request: the project manager’s resume or summary of relevant experience, an escalation matrix, and a statement of delegated authority for change orders under a stated threshold.
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7) Failing to confirm warranty, post-completion support, and close-out documentation
Contractors sometimes deliver work without the documentation schools need to operate and maintain spaces. Request written warranty terms and a close-out package that includes as-built drawings, operation and maintenance manuals, testing records, and a defects rectification timeline. What to request: a sample warranty statement, a list of close-out documents to be submitted at practical completion, and the expected timeframe for addressing defects after handover.
Documents and proofs you should require from every bidder
Collect the following documents with each bid and verify them before shortlisting. Accept scanned PDF certificates, annotated photos, signed reference letters, and a digital copy of the proposed contract.
- Certified general liability insurance certificate with expiry date and policy limits.
- WSIB clearance or equivalent worker compensation evidence for Ontario, retained as a certified PDF.
- Proof of bonding or letter of credit when tender conditions require performance guarantees.
- At least three institutional references with contact names and phone numbers.
- Project portfolio images or case studies showing finished institutional work.
- Trade-by-trade detailed estimate and a phased schedule for occupied sites.
- Site-specific health and safety plan and evidence of worker training or certifications.
- Sample contract and warranty statement, plus a proposed close-out document list.
For contract content and consumer protection anchors consult Ontario’s guidance on renovation contracts and federal renovation resources about industry conduct and warranty expectations. Those official resources help you define mandatory contract clauses and warranty language during procurement: Ontario’s renovation and repair guidance and federal renovation guidance.
Scheduling, safety and security for occupied school renovations
When work takes place during term you must minimise disruption and preserve safety. Effective controls include phased windows where high-noise or dusty work occurs during holidays or after hours, strict access control at perimeter fencing, negative air and dust containment for demolition, and an on-site safety officer for major activity. Verify these practices with documents: the phased schedule, a trades access roster, and the site-specific safety plan.
Practical tactics to reduce disruption:
- Schedule noisy or intrusive tasks for student-free periods and provide an agreed calendar of closures.
- Use temporary enclosures and negative air machines during demolition or tile removal.
- Maintain a daily sign-in roster for workers and require identification badges.
- Set a single emergency contact and an escalation procedure for utility interruptions or unexpected hazards.
Procurement notes and tender behaviour for Ontario school projects
Public and board procurement for educational facilities often requires formal tender portals and explicit contract clauses for insurance, bonding, and disclosure. Expect bidders to upload insurance and WSIB documents with their tender submission. Where a board issues an RFP, require vendors to submit the full document package and confirm clarifications in writing. Use your local tender portal to post documents and manage addenda, and require written responses to clarifications so all bidders see the same updates.
Decision criteria, scoring and next steps
Use a simple scoring rubric to compare bidders. Below is a recommended weighted rubric you can adapt:
- Experience and portfolio: 30% — institutional projects, quality of finishes, references.
- Documentation and insurance: 25% — current insurance, WSIB, bonding where required.
- Schedule and phased plan for occupied schools: 25% — realism, trade sequencing, mitigation.
- Project management and warranty: 20% — named project lead, warranty and close-out deliverables.
Suggested pass and fail cutoffs: require a minimum overall score (for example 70%) and no more than one failed mandatory document item (insurance, WSIB, or health and safety plan) to move forward. If clarifications are needed, request them in writing with a short deadline and treat late or incomplete responses as a negative scoring factor.
Recommended next step for shortlisted bidders: request a priced, phased quote based on the project address, a concise scope statement, and your preferred completion deadline. Deeroi Constructions asks clients to provide the address, scope, and deadline so the team can price the work, plan trades, and return a clear construction path to completion.
Ready to request a scoped quote
When you are ready to request a scoped quote, send the project address, a short scope summary, any tender documents or drawings, and your target completion date. Deeroi Constructions will return a priced, phased plan, a trade coordination outline, and a close-out documentation list if selected. To begin, contact Deeroi Constructions.
Frequently asked questions
What documents should a facilities team request from a school renovation contractor before shortlisting?
At minimum request a certificate of general liability insurance, WSIB clearance or equivalent, project references with contact details, portfolio photos or case studies of institutional work, a trade-by-trade estimate, a phased schedule for occupied sites, a site-specific health and safety plan, and a sample contract with warranty terms. Keep certified PDFs or signed letters as proof on file.
How can we verify a contractor has experience working in occupied schools and with school boards in Ontario?
Ask for two or more institutional project case studies that include the client organisation, scope, and a contact reference. During reference checks ask specifically about phasing, disruption management, and post-completion defects. Review photographic evidence of finished spaces to confirm durable finishes and clean close-out practices.
Is it acceptable to allow construction during school hours and what controls should be in place?
Yes, but only with a detailed phased plan and strict controls. Require containment for dust and noise, scheduled windows for intrusive work, an access-control roster for trades, and an emergency response procedure. Verify these controls in the site-specific health and safety plan and the phased schedule submitted with the bid.
What warranty and close-out documentation should a school renovation contract require?
Require a written warranty statement that covers workmanship for a defined period, a close-out package with as-built drawings, operation and maintenance manuals, test records, and a defects rectification timeline. Include an obligation for prompt response to warranty claims and a clear process for logging and resolving defects.
Key sources for contract and consumer protection guidance include Ontario’s official guidance on renovation contracts and federal renovation resources such as the ISED page on home renovations. For detailed contractor selection and intake, see Deeroi Constructions' project intake process and related resources.
Related reading: house renovation contractors guide.