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What’s Included in a Professional Roof Replacement? A Step-by-Step Look

  • Rain Safe Roofing Inc.
  • Oct 23
  • 2 min read

Updated: Nov 21

A roof replacement is one of the biggest projects a homeowner can take on, and knowing what’s included in the process can help you prepare with confidence. At Rain Safe Roofing, we follow a proven, step-by-step approach to ensure every roof replacement in Mississauga, Milton, Oakville, Etobicoke, and across the GTA is done with precision and care.


Step 1: Initial Inspection and Estimate

Close-up of a roofer lifting damaged asphalt shingles during a professional roof inspection and tear-off process, showing worn roofing materials before replacement on a home in Mississauga, Oakville, Milton, Etobicoke, or the GTA.

Every project begins with a thorough roof inspection. Our experts assess the condition of your shingles, underlayment, flashing, and ventilation. We then provide a detailed estimate outlining the scope of work, recommended materials, and project timeline.


Step 2: Tear-Off of Old Roofing

Before new shingles can be installed, the old roofing system must be removed. This step allows us to examine the roof deck for damage, rot, or mold. Addressing these issues early ensures a solid foundation for your new roof.


Step 3: Deck Preparation and Protection

We install waterproof barriers and synthetic underlayment to protect your home from moisture. These layers act as a shield, preventing leaks and improving your roof’s durability against Ontario’s harsh climate.


Drone photo of a full roof replacement in Mississauga with roofing contractors installing GAF waterproof underlayment after removing old shingles as part of a professional re-roofing project.

Step 4: Shingle Installation

Once the base is ready, we install your chosen shingles, whether GAF, IKO, CertainTeed, Owens Corning, or BP. Proper installation techniques ensure maximum performance, energy efficiency, and long-term protection.


Step 5: Chimneys, Vents, and Skylights

Roof features like chimneys, vents, and skylights are carefully sealed to prevent leaks. These components are critical to ventilation, safety, and efficiency. We ensure every detail is addressed to keep your home protected.


Step 6: Final Inspection and Cleanup

After installation, we conduct a thorough final inspection to confirm every element of your roof is properly installed. We also handle complete cleanup, leaving your property as neat as we found it.


A professional roof replacement is more than just new shingles. It’s a complete system designed to protect your home for decades. At Rain Safe Roofing, we take pride in delivering high-quality roof replacements backed by expert workmanship and trusted materials.


Ready to upgrade your roof? Contact Rain Safe Roofing today for a professional inspection and detailed estimate tailored to your home.


Contact us now!

 
 
 

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