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The story of Kelly Lake Building Supplies, started in 1971 as a locally owned business. The industry has been through many changes however, our one constant has been our level of service and product knowledge. You will leave with confidence knowing you have the right product and the know-how to use it once you start your project.

1991 Kelly Lake Building Supplies moved from our first home on Kelly Lake road to our current central location in the heart of Sudbury on 22 Brady Street. Through the years we have expanded our showroom to over 11,000 sq feet and with that expanded our selection of products and services backed by leading manufacturers.
Today Kelly Lake Building Supplies has grown to a fleet of 16 delivery trucks, which adds convenience for our contractors and DIY enthusiasts we even have a mobile tool truck to help you complete your project with the right tools and materials. Kelly Lake also offers kitchen and deck designs so that you can improve your living space, plus new window and exterior door installation along with thermal window and screen repair service.

We are not the size of those big box stores and we don’t want to be. We have not changed the way you shop for your project. We still answer our phones with a friendly voice. Provide the experience, knowledge and helpful advice to create any project big or small. In our 45 plus years in Greater Sudbury you have come to expect exceptional service, durable brand names and the right materials for the job at a fair price, every time you enter our store. Whether you a professional contractor working on a job or a homeowner trying to improve your space we will continue to exceed your expectations every day.
Thank you for Thinking of Kelly Lake it’s our privilege to help you with your project.

“Let’s Build Together”


  • Delivery
    Whether it's lumber, drywall, shingles, windows or other store products, we are available Monday to Saturday. Simply let us know where you want the products to be delivered and our drivers will make sure everything gets there on time and is set according to your instructions. Delivery charges apply dependent on distance.
  • New Windows & Exterior Door Install
    We have a large display showroom of Ostaco and Koltech windows and exterior doors. We can have them created to fit any opening. So if it's the camp to view the lake front or the front window to watch kids play road hockey.  Ask one of our professional sales staff in-store, how we can assist with your project.
  • Kitchen Design
    Before you hire an installer to fill your kitchen with cupboards, counter tops, pantries and various wood grains and styles, let us help you create your new kitchen or bathroom.  Whether it's a make-over or full renovation our expert designers will walk you through a step by step process that will truly bring your vision to life.
  • Garage And Shed Design
    Proper estimating is important for any project, and the process can seem overwhelming. We can help by creating a material list you'll require.  We will properly measure and accurately determine the size of the order, to reduce material waste. We also do Takeoff Estimates for house builds.
  • Deck Layout And Design
    Use these great deck design programs (click the Logo's) from the brands we sell.  After you're design is complete, print and visit or email us and we'll confirm the design and give you a full price build out.  Note: you'll need to register or set up an account to get started.
  • Colour Matching
    Want to bring more life to a room without spending the much on renovating? You would be amazed by what a coat of paint can do to an otherwise drab environment. Bring a sample of the colour you want to match and we’ll make sure you get a perfect match. Choose from our selection of SICO of high-quality interior and exterior paints as well as stains to turn your vision into reality.
  • Key Cutting
    Do you need a key cut? We can help you. We’ve got a large selection of key blanks in stock so you can get your copy today. We also ensure that the keys we supply are going to work!
  • Thermal Window & Screen Repair
    Sometimes you don't need to replace your window. We carry a wide variety of window screening and parts to replace or repair that old window or screen. Request an estimate or bring your old screens in and we will have them looking better than ever in no time.  Just ask one of our professional sales staff in-store on repairing your window.

Our People