We are always upfront, and honest in  free quotes about what needs to be done, and what options you may have available.  B&B Roofing & Exteriors representatives take the time to educate homeowners and business owners, like yourself, about our wide array of available products and services to ensure your job is completed on time, and on budget.  We are trusted roofing contractors in London, Ontario, and surrounding communities.

steep roof replacement with 50 year warranty shingles



gaf master elite gold residential roofing contractor

Professional, quality, roofers B&B Roofing and Exteriors is a GAF Master Elite Residential Roofing Contractor, and is proud to install GAF fiberglass shingles.

Being a GAF certified contractor means that home owners receive a 100% non-prorated extended warranty for the lifetime of their shingles.

When you choose a GAF factory-certified roofing contractor, you know you’re getting the best in the business. Only 2% of roofing contractors in North America are GAF Master Elite®, a certification they renew every year. Plus, every GAF-certified contractor offers superior protection with the GAF Lifetime Roofing System, and have access to enhanced warranties, backed by GAF.

Click the shingles to choose a colour from our most popular Timberline architectural shingle line, and benefit from their great look, lifetime warranty, and fantastic price.


Metal roofing, whether sheet or tile (shingle), is an increasingly popular roof replacement option.  B&B Roofing and Exteriors installs Algoma metal roofing steel tiles, and locally produced metal sheet roofing in a variety of profiles.  It’s important that a roof is strong, but also needs to look amazing so that it enhances the beauty, and value of your home or business.  The metal shingle, tile, and sheet profiles we offer are fully warrantied for decades, which gives you confidence in their workmanship.  And our installers are experienced professionals when installing metal roofing.  Be assured you’re receiving the best products, and quality work with B&B Roofing and Exteriors.

metal roofing replacment


For flat, or smooth roof applications B&B Roofing and Exteriors installs reinforced membrane, which  is a premium, heat-weldable, single-ply thermoplastic polyolefin (TPO) sheet designed for new roof construction and re-roofing applications.  Physical properties of the membrane are enhanced by a strong polyester fabric that is encapsulated between the TPO-based top and bottom plies.  The combination of the fabric and TPO plies provides high breaking and tearing strength, as well as excellent puncture resistance. The relatively smooth surface of the membrane produces a total surface fusion weld that results in a consistent, watertight, monolithic roof assembly.  The membrane is environmentally friendly and safe to install.


B&B Roofing and Exteriors offer, and install Enviroshake, and Enviroslate composite roofing products that are designed to authentically replicate the look of natural cedar, and slate roofing.  The proprietary formulation and manufacturing process results in a product that has enhanced durability, longevity, and performance. Composite shingles are not susceptible to mold, mildew, fungus, rot or insect infestation. They are also hail resistant and can withstand severe weather conditions and temperature fluctuations and extremes. As roofers in London Ontario we have chosen this brand, because once installed the shingles are maintenance free as the products will retain their physical properties and look for decades, and are even sold with a lifetime warranty that is and fully transferable within the first 50 years for residential projects, and a 50 year warranty for commercial projects.

Roof Replacement and Roof Repair in London Ontario
B&B Roofing and Exteriors

Roof replacement and emergency roof repair in London Ontario. Professional exterior contractors. London 519-495-2339. St. Thomas 519-637-3707.

Service Type: roof installation, roof repair, emergency roof repair, roof replacement, roofing, metal roofing, fiberglass shingles, flat roofing

Price: $$

Currency: CAD