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Try Our Polyasparic Roof Coating Calculator

Multiply the width and length of your roof to get the square footage. If your roof is divided into sections do each section separately then add them up to come up with your square footage

Additionally do the same for your garage, shed, and outbuildings if you would like them added.

You will notice a button down below for the Garage and shed if you are adding one or both check the boxes

Add in the number of skylights you have. Then add the number of chimneys you have this would include your oil furnace chimney

Two columns
Roof Estimate
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There are all roof types from flat to very steep, also roofs are made of various materials. The cost to replace any one of these types of roofs can vary.

For example, take a 2,000-square-foot flat roof with “touch on roofing”, this type of roof to have re-roofed can cost approximately $22,000 to $28,000.

Run that through the calculator

In addition to our Dr. Shields Canadian Roof Armor  Polyaspartic Coatings, we are a full-service roofing company that prides itself on customer satisfaction

Plus we consider ourselves quite a bit different from all the other roofing companies

As our name implies as well as doing new roofing projects when it comes to having to re-roof your home or commercial project we will inspect, repair, re-roof, and also apply waterproofing coatings

This has obvious cost-saving benefits and reduces your carbon footprint by not sending your old roof to the landfill

For a fraction of the cost of a new roof, apply Canadian Roof Armor on your existing roof and give yourself some peace of mind

It’s as easy as 1,2,3,



For Additional Information Please Click the Link Below
Then Fill Out The Form and Tell Us A Bit More About Your Project.

Or Give Us A Call


waterproofing roof coating
The Great Canadian Roof Doctor Inc

We Offer The Following Services

Learn how we can help you with your roofing requirements

Contact us now!

Our Services

The Great Canadian Roof Doctor Inc. is a full-service roofing contractor, specializing in Roof Inspections, Repairs, Re-Roofing & Coatings.

Our technicians are certified and specialize in clear and custom coloured roof coatings for all roof types

We will examine your roof carefully., then let you know when it may need to be replaced

The Great Canadian Roof Doctor specializes in repairing leaks and damaged roof surfaces on all roof types

Metal Roofing, Fiberglass Asphalt,Shingles, Flat and Low Slope Roofing, and Slate Roofing

You Just Cannot Wait

Then Give Us A Call Toll-Free at 1-888-677-6310