How to Choose the Best Roofing Contractor in Ontario – 7 Easy to Follow Steps

Feb 12, 2026 | Roofing Tips | 0 comments

Hiring the wrong roofing contractor can lead to costly repairs and premature roof failure. This guide explains how Ontario property owners can evaluate certifications, experience, safety standards, and reputation before choosing a roofing company.

 

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Hiring a roofing contractor is not just another service decision — it’s a long-term investment in the protection of your building. Here are the 7 steps to choosing the best roofing contractor in Ontario.

In Ontario’s climate, where roofs must withstand heavy snow, freeze-thaw cycles, high winds, and intense rainfall, the margin for error is small. Choosing the wrong contractor can lead to:

  • Premature membrane failure
  • Drainage issues
  • Voided warranties
  • Recurring leaks
  • Structural damage

The right contractor, on the other hand, delivers durability, compliance, and long-term value.

Here’s how to make the right decision.

 

1. Look for Manufacturer Certifications

One of the strongest indicators of a qualified contractor is manufacturer certification.

Certified contractors:

  • meet strict installation standards
  • receive ongoing technical training
  • follow approved system specifications
  • can offer stronger warranty options

 

When evaluating a roofing company, ask:

  • Which manufacturers are you certified with?
  • Are your installers trained for this specific system?
  • Can you provide documentation of certification?

Certified installers are held to higher accountability — and that directly benefits the building owner.

 

2. Verify Experience with Similar Projects

Not all roofing experience is equal.

A residential shingle contractor is not the same as a commercial flat roofing expert. If your building is commercial, industrial, or multi-unit residential, ensure the contractor has:

  • Experience with large-scale projects
  • Familiarity with flat roofing systems
  • Coordination experience with general contractors and property managers
  • Understanding of building code compliance

Ask for:

  • Project examples
  • References
  • Case studies

Experience in Ontario conditions matters.

 

3. Confirm Proper Insurance and Safety Compliance

Roofing is high-risk work. Professional contractors should carry:

  • Liability insurance
  • WSIB coverage
  • Working at Heights certification
  • Fall protection systems

Ask for documentation.

If a contractor hesitates to provide proof, that’s a red flag.

Safety compliance protects:

  • Your building
  • Your tenants
  • Your company
  • And the workers themselves

 

4. Evaluate Their Inspection Process

A reputable roofing contractor will not provide a vague estimate without a proper inspection.

A professional inspection should include:

  • Membrane condition assessment
  • Drainage evaluation
  • Flashing and penetration checks
  • Insulation considerations
  • Photo documentation

Be cautious of contractors who:

  • Immediately recommend full replacement without detailed assessment
  • Provide pricing without clear scope
  • Pressure you to sign quickly

The best contractors diagnose before they prescribe.

 

5. Review Their Online Reputation and References

Look for:

  • Consistent positive reviews
  • Detailed feedback, not generic comments
  • Long-term client relationships
  • Professional communication

Reputation is built over years — not months.

Check:

  • Google reviews
  • Industry affiliations
  • Manufacturer listings
  • Better Business Bureau profiles

 

6. Compare Quotes Carefully — Not Just Price

Price should not be the sole deciding factor.

When comparing quotes, review:

  • Scope of work
  • Materials specified
  • Warranty coverage
  • Disposal method
  • Timeline
  • Payment structure

The lowest price may exclude critical elements that result in higher costs later.

Look for clarity, transparency, and detail. If you have questions, don’t hesitate to ask them.

 

7. Choose a Contractor Focused on Long-Term Performance

The best roofing contractor doesn’t just install a roof — they support it over time.

Long-term support includes:

  • Preventative maintenance programs
  • Seasonal inspections
  • Emergency response readiness
  • Ongoing communication

Roofs are not “install and forget” systems. Long-term relationships matter.

 

Why Ontario Property Owners Choose Garcia Roofing

Garcia Roofing works with:

  • Builders & Developers
  • Property management companies
  • Commercial building owners
  • General contractors

Our team brings:

  • Manufacturer certifications
  • Large-scale project experience
  • Strict safety compliance
  • Detailed inspection processes
  • Long-term maintenance support

We approach every project with the understanding that roofing is a structural investment — not a short-term fix.

When selecting a contractor, experience, accountability, and professionalism make the difference.

We’re not just here for today — we’re here for tomorrow as well.


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