21 Questions Facility Managers Should Ask Before Hiring a Commercial Contractor

One unclear construction scope can turn a planned facility improvement into weeks of downtime, disputed charges, and repeated repairs. A contractor’s price matters, but so do the people supervising the job, the systems protecting your operations, and the standards used to judge the finished work. These 21 questions will help you compare commercial contractors, uncover missing details, and protect your facility before signing a contract.

Verify the Contractor Behind the Proposal

1. Are you properly licensed for this work?

What it is: A contractor’s license confirms that the business has met applicable requirements for specific types or values of construction work.

What to do: Request the legal business name, license number, classification, and issuing authority. Verify the information through the appropriate state or local database. Confirm that the license remains active and covers your project. A business registration or local occupational license does not automatically authorize every construction trade.

2. Can you provide current insurance certificates?

What it is: Insurance certificates summarize the contractor’s active policies, coverage periods, and stated limits.

Why it matters: Ask for proof of general liability, workers’ compensation, and commercial auto coverage when vehicles or mobile equipment will enter your property. Request documentation from the insurance agent when possible. Confirm that the insured company matches the business named in the proposal and that coverage will remain active throughout the project.

3. Have you completed comparable commercial projects?

What it is: Comparable experience means the contractor has managed work involving similar facilities, materials, hazards, schedules, and operating conditions.

What to do: Ask for recent examples that resemble your project in complexity rather than appearance alone. Renovating an occupied medical facility requires different controls from coating an empty warehouse. Request references and ask how the contractor managed access, shutdowns, unexpected conditions, cleanup, and corrections.

4. Who will manage the project onsite?

What it is: The onsite supervisor coordinates workers, subcontractors, safety procedures, inspections, communication, and daily decisions.

Why it matters: Ask for the supervisor’s name, experience, responsibilities, and expected time onsite. Determine who can approve field decisions and who replaces that person during an absence. The estimator may disappear after the contract is signed, so you need a clear operational contact before work begins.

Define Exactly What You Are Buying

5. What work is included in the proposed price?

What it is: The scope of work identifies the labor, materials, equipment, preparation, installation, protection, cleanup, and documentation included in the proposal.

What to do: Require quantities, locations, material descriptions, preparation methods, and completion standards. Phrases such as “repair concrete” or “renovate office” leave too much open to interpretation. Compare contractors using the same written scope instead of comparing totals that may represent different amounts of work.

6. What is specifically excluded from the proposal?

What it is: Exclusions identify tasks, materials, services, and project conditions that the contractor has not priced.

Why it matters: Ask for exclusions in a clearly labeled section. Common omissions include permits, testing, demolition, utility relocation, temporary barriers, after-hours work, equipment moving, hazardous-material removal, and repairs to concealed damage. A low estimate can become expensive when essential work appears later as a series of additions.

7. Which allowances or estimated quantities are being used?

What it is: An allowance is a temporary budget for an item whose exact selection, quantity, or condition has not been finalized.

What to do: Identify every allowance, the assumed amount, and the process for reconciling actual costs. Ask whether contractor markup applies when the allowance is exceeded. Allowances are useful when uncertainty is unavoidable, but they should not hide incomplete planning or make an unrealistic proposal appear more affordable.

8. Which existing conditions could change the price?

What it is: Existing conditions include concealed damage, moisture, weak concrete, outdated systems, buried utilities, and other problems that cannot be fully evaluated from the surface.

Why it matters: Ask how the contractor inspected the property and which uncertainties remain. Require a process for photographing discoveries, explaining the required response, and obtaining written authorization before extra work begins. You should understand the change-order rules before a wall, ceiling, or floor is opened.

Protect People, Property, and Operations

9. How will construction be separated from normal operations?

What it is: A site-control plan separates construction hazards from employees, customers, visitors, equipment, inventory, and occupied areas.

What to do: Review barriers, signs, access restrictions, temporary walkways, delivery routes, and staging areas. Ask how noise, vibration, debris, odors, and blocked entrances will be managed. The plan should reflect your real operating schedule, including shift changes and peak customer hours, rather than assuming the facility will be empty.

10. What project-specific safety plan will you use?

What it is: A safety plan identifies foreseeable hazards, required protective equipment, emergency procedures, and responsibility for enforcing site rules.

Why it matters: Ask how the contractor addresses fall protection, electrical hazards, mobile equipment, hot work, chemicals, confined spaces, and other relevant risks. Confirm how incidents and near misses will be reported. General safety promises are not enough when the work introduces specific hazards into an operating facility.

11. How will the existing surface or work area be prepared?

What it is: Preparation removes contaminants, corrects defects, and creates the physical conditions required for the new system to perform.

What to do: Ask how the contractor will inspect, clean, repair, test, and document the work area. For example, commercial epoxy flooring requires more than applying a coating over existing concrete. The team must evaluate moisture and contamination, repair defects, and create the surface profile required by the specified system.

12. How will dust, fumes, and contaminants be controlled?

What it is: Environmental controls prevent construction particles, odors, chemicals, and debris from spreading beyond the work zone.

Why it matters: Ask about temporary containment, negative air pressure, filtration, ventilation, floor protection, and cleaning procedures. Sensitive inventory, food preparation, medical operations, electronics, or occupied offices may require additional controls. Confirm who will monitor containment and what response follows if dust or fumes escape into active areas.

13. Which utilities or essential systems will be interrupted?

What it is: A shutdown plan identifies when construction will affect power, water, HVAC, plumbing, data, security, fire protection, or production systems.

What to do: Require the contractor to list each expected interruption, its duration, and the people who must approve it. Determine whether temporary services or backup systems are necessary. Notify affected departments in advance and establish a rule that no unplanned shutdown occurs without authorization except during a genuine emergency.

Control the Schedule and Financial Risk

14. What does the construction schedule include?

What it is: The project schedule identifies major activities, dependencies, deliveries, inspections, shutdowns, curing periods, milestones, and completion dates.

Why it matters: A start date and estimated finish do not provide enough control. Ask when specific areas will close and reopen, when long-lead materials will arrive, and when your staff can safely resume normal use. The schedule must include preparation, drying, curing, testing, and inspections rather than only visible installation work.

15. How will schedule delays be handled?

What it is: A delay procedure defines how the contractor identifies risks, reports setbacks, updates the schedule, and proposes recovery measures.

What to do: Ask how quickly you will receive notice of weather delays, material shortages, inspection issues, concealed conditions, or staffing problems. Require updated completion dates and an explanation of operational effects. The contract should distinguish excusable delays from delays caused by weak planning, inadequate labor, or late material ordering.

16. How must change orders be approved?

What it is: A change order is a written modification to the project’s scope, materials, price, or schedule after the original agreement is signed.

Why it matters: Every change should state why it is needed, what it includes, how much it costs, and how it affects completion. Identify the people authorized to approve changes for both parties. Do not allow hallway conversations, text messages, or unsigned field instructions to become disputed charges on the final invoice.

17. How will payments be connected to progress?

What it is: The payment schedule determines when deposits, progress payments, retainage, and final payment become due.

What to do: Tie payments to measurable milestones and verified work rather than arbitrary dates. Ask what documentation supports each payment request and how stored materials will be handled. Hold final payment according to the contract until inspections, correction items, cleanup, warranties, and required closeout records are complete.

Confirm Quality and Long-Term Accountability

18. Which subcontractors will work on the project?

What it is: Subcontractors are separate companies hired by the primary contractor to perform specialized portions of the work.

Why it matters: Ask which trades will be subcontracted and how those companies are selected, insured, scheduled, and supervised. Confirm that the primary contractor remains responsible for coordination, safety, and quality. Your facility team should not have to settle disagreements between contractors when responsibilities overlap.

19. How will quality be inspected during construction?

What it is: Quality control uses planned inspections, measurements, tests, and records to confirm that the work matches approved requirements.

What to do: Ask which checks will occur before completed work becomes concealed or inaccessible. Determine whether product manufacturers, engineers, testing firms, or building officials must participate. Request dated photographs and test results when appropriate. A final walkthrough cannot identify every problem hidden beneath a finished wall, floor, ceiling, or coating.

20. What warranties will apply after completion?

What it is: Contractor and manufacturer warranties describe who is responsible when workmanship or products fail under covered conditions.

Why it matters: Separate workmanship coverage from product warranties. Ask about duration, exclusions, maintenance requirements, claim procedures, response times, and transferability. Confirm who investigates a problem when the contractor and manufacturer disagree about its cause. Collect the written warranties before releasing final payment.

21. What documents and services are included in closeout?

What it is: Project closeout confirms completion, resolves remaining deficiencies, and transfers the information needed to operate and maintain the finished work.

What to do: Require a closeout checklist covering final inspections, correction items, permits, warranties, manuals, product data, test reports, training, photographs, and updated drawings when applicable. Define these requirements in the contract so the final invoice does not become the contractor’s only measure of completion.

Commercial Contractor Verification Checklist

Before approving a proposal, confirm that you have:

• Verified the contractor’s legal name and required licenses

• Received current insurance documentation

• Reviewed experience with comparable facilities

• Identified the onsite supervisor and decision-maker

• Received a detailed written scope

• Reviewed all stated exclusions

• Identified allowances and estimated quantities

• Discussed concealed and uncertain conditions

• Approved specified materials and substitution rules

• Reviewed the site-control plan

• Reviewed project-specific safety procedures

• Confirmed preparation and testing methods

• Documented dust, fume, and contamination controls

• Scheduled utility shutdowns and temporary services

• Reviewed milestones, inspections, and curing periods

• Established a delay-notification process

• Defined written change-order requirements

• Connected payments to measurable progress

• Identified subcontractors and responsibilities

• Defined quality-control inspections

• Reviewed workmanship and manufacturer warranties

• Listed every required closeout document

A Script for Requesting a Complete Proposal

“Please provide a written proposal that identifies your legal business name, license and insurance information, project supervisor, complete scope, exclusions, allowances, specified materials, preparation methods, safety controls, operational disruptions, schedule, payment terms, change-order process, subcontractors, quality inspections, warranties, and closeout documents. Please also explain which existing conditions could affect the price or completion date.”

A Five-Part Proposal Comparison Method

Create one column for each contractor and score every proposal from one to five in these categories:

1. Qualifications: Licensing, insurance, comparable experience, and onsite supervision

2. Scope clarity: Included work, exclusions, allowances, materials, preparation, and cleanup

3. Operational protection: Safety, access, containment, shutdowns, and communication

4. Commercial terms: Schedule, payments, delay procedures, and change orders

5. Accountability: Inspections, warranties, documentation, and post-project response

Mark missing information instead of assuming it is included. Send each contractor the same questions and request written clarification.

The lowest proposal may still provide the strongest value, but only if it covers the work your facility needs. A price without a complete scope is not a reliable comparison.

Quick Wins Before Construction Begins

• Photograph the work area, adjacent surfaces, equipment, and access routes.

• Hold a preconstruction meeting with the contractor and affected department leaders.

• Assign one authorized contact for the facility and one for the contractor.

• Confirm emergency contacts and after-hours communication procedures.

• Post the approved schedule and restricted areas where supervisors can find them.

• Document staging areas, delivery routes, shutdowns, and temporary access plans.

• Save contracts, drawings, approvals, reports, and photographs in one project folder.

Frequently Asked Questions

Should you automatically choose the lowest commercial construction bid?

No. First confirm that each contractor priced the same scope, materials, preparation, safety controls, schedule, testing, and closeout requirements. A lower total may reflect exclusions that become additional charges after work begins.

How many commercial contractor proposals should you request?

Three comparable proposals usually provide a useful basis for evaluating price and approach. Specialized or urgent projects may offer fewer qualified options, so focus on complete scopes and relevant experience rather than reaching an arbitrary number.

Is using subcontractors a warning sign?

Not by itself. Commercial projects often require specialized trades. Ask who will supervise each subcontractor, how qualifications and insurance are verified, and whether the primary contractor remains responsible for safety, coordination, corrections, and warranty service.

When should final payment be released?

Follow the signed contract, but connect final payment to defined closeout requirements. Verify completed corrections, final inspections, cleanup, warranties, manuals, permits, and other required records before treating the project as finished.

Closing

Hiring a commercial contractor is not simply a purchasing decision. The contractor’s planning, communication, safety practices, and quality controls can affect employees, customers, equipment, inventory, and production long after the crews leave.

Ask these 21 questions before signing. Clear answers will help you compare proposals fairly, uncover missing costs, and select a contractor whose process fits the realities of your facility.

Good info, in one place—so you can move forward.

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