Resources: The Dominion Roof Installation Checklist Does the contractor: Have experienced and qualified people? Supply references? Thoroughly inspect your roof? Inspect all flashing? Chimneys? Soil stacks? Other roof penetrations? Valleys? Intersecting roof planes? Evaluate existing ventilation? Ensure that ventilation levels meeting Building Code recommendations? Ensure the roof has a proper deck? Apply shingles according to manufacturer's recommendations? Replace all flashings, vents, valley metal, etc. which should be replaced to ensure they will last as long as the shingles? Offer only quality brand products? Do they have: WSIB coverage? Liability Insurance? Fall Arrest Certification? Clearly explain the manufacturer's warranty? Years of 100% full coverage? Includes cost of labour? Replacement cost including tear-off, disposal, underlayment, flashings? Full transferability? Is it in writing? Clearly explain the installer's warranty? Is it in writing? Endeavour to clean up the job site as well as possible, including picking up nails, cleaning out flower beds, sweeping walks and driveways? Before you invest in a new roof, make sure that you know the answers to these questions. They're your best guarantee of a professional, worry-free installation. The kind offered by Dominion Roofing.