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Navigating Markham’s rigorous building standards requires more than just a ladder and shingles. Protect your investment by mastering the critical selection process for local roofing experts.
Data-driven advice for navigating the local market. No fluff, just the high-authority secrets you need to know.
Always demand a current Certificate of Insurance (COI) that includes specific coverage for roofing operations and worker liability.
Verify that the contractor is registered with the Workplace Safety and Insurance Board (WSIB) to ensure you are not legally liable for accidents on your property.
Request a written manufacturer certification, such as GAF Master Elite or CertainTeed SELECT ShingleMaster, to guarantee extended warranty protection.
Ensure the contract specifies the exact type of synthetic underlayment to be used, as this is the primary defense against water penetration.
Ask for a detailed plan on how the contractor will protect your landscaping and driveway from falling debris during the tear-off process.
Check for local references within your specific Markham neighborhood to see how the contractor handled similar roof pitches or complex gable structures.
Confirm that the estimate includes the replacement of all step flashing and counter-flashing, rather than simply reusing existing metal.
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