RESIDENTIAL, COMMERCIAL and INDUSTRIAL ROOFING SPECIALISTS

Williams Lake: 250‑392‑4322

Quesnel: 250‑992‑7393 

Toll Free: 1‑800‑663‑6894

Products & Services

Roofing, Siding & More in Williams Lake

Mainline Roofing provides roofing, siding and other moisture diversion systems to residential, commercial and industrial clients. We have the equipment to get the job done right, including 5 crane trucks, 2 dump trucks, 3-ton sheet metal trucks and Genie® lifts. From roofing installation and repairs to complete reroofing, we have got you covered. With our brand-new, state-of-the-art metal panel machine, we provide custom, on-site metalwork that sets us to stand apart in the industry. Protect your family and belongings with our premium products and services, which include:

  Torch-on roofing
  Metal roofing
  EPDM rubber roofing

  Reroofing
  Tar and gravel roofing

Williams Lake’s Reroofing Specialists

Has your roof started leaking? Call Mainline Roofing today for emergency services. We are your reroofing specialists, tearing off your old roof and installing a new one. We provide reroofing services for residential, commercial and industrial buildings, adept at handling both flat and metal roofs, and using a variety of roofing materials. We guarantee to get your roof watertight once again with our reroofing services.

Built-Up Roofing: Tar and Gravel

For low-pitched roofs with a slope of less than 2:12, such as on contemporary homes and commercial buildings, tar and gravel are the most common built-up roofing materials. It’s “built-up” because it is constructed of at least three layers of waterproof material that alternates with layers of hot tar. With a life expectancy of approximately 20 years, the gravel on top of the built-up layers serves to shield the roof from sun damage. Tar and gravel are not recommended as a do-it-yourself project, which is why Mainline Roofing offers expert installation services. Relax while we do the dirty work for you!

Snow Guards/Stoppers in Williams Lake

Worried about ice and snow sliding off your roof injuring people or damaging your property? We’ve got you covered. At Mainline Roofing Co. Ltd., we are committed to helping residential, agricultural and commercial property owners to protect their roofing from damage. Our snow guards in Williams Lake are known for their durability, appearance and ease of installation. 


Our snow guard products will help your roofing prevent damage from avalanching snow and ice while increasing the beauty, efficiency and longevity. We provide custom-made galvanized aluminum snow stoppers in a variety of colour options, including:

  • Green

  • Red

  • Brown

  • Black

  • Blue

  • Orange

What are Snow Guards?

Snow guards or snow stoppers are rooftop devices that help prevent snow slides, by allowing them to melt completely and drop off in smaller amounts. When you install a snow guard, you can rest assured that you will benefit from a safer roofing system, less complaints of falling ice and snow, less damage to your property, and overall peace of mind throughout the winter. They are a cost-effective way to help prevent damage from avalanching snow and ice to metal roofs in winter climates. 


Use of these snow retention devices started several hundred years ago in areas of Scandinavia and the Alps. Builders and homeowners in high-snow areas placed stones and logs on rooftops to increase the friction and retention of the snow.

It’s better to use stronger and safer snow guards to prevent snow slides on people or property. Call us today for a free quote.

Free Quote

Custom-Made Snow Stoppers

Protect your people, shrubs, glass awnings, gutters and more from sliding snow and ice. We offer snow guards in a wide variety of colours.

Free Quote

Brands We Carry and Serve

Mainline Roofing offers the finest roofing and siding products from premier manufacturers. These manufacturers are world-renowned for the durability and quality of their weatherproofing materials. We provide time-tested roofing and siding materials from various brands, including:

  Cascadia Metals
  Firestone Building Products
  IKO
  Menzies Metal Products
  Soprema

  Westform Metals

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