• Award Winning

    Katherine Joy Interiors offers professional interior design solutions tailored & customized for residential clients across North America.  Katherine Joy Interiors was founded in 1995. Colour consulting to complete room transformations, our expertise is focused on providing the best options for our clients to suit both style and budget resulting in award winning projects. Read More
  • 3D Visualization

    Katherine Joy Interiors uses cutting edge technologies to create stunning 3D visualizations from photos or blueprints. This technique allows you to view rooms from different perspectives allowing you to Visualize Your Space Just Like Celebrities Do! Read More
  • Coordination

    Katherine is a master at coordinating various colours and textures for every room and space. She can also coordinate a team of contractors acting as project manager to ensure your home design is perfect.
  • The Final Touch

    Sometimes it's the small things that people will notice in your home. Katherine will keep everything on track and make sure small details are not overlooked. Katherine knows that little details and elements can make a large impact for customers.
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Unique & Sophisticated Design

There is no job too small or too large… Browse through our gallery of projects to see how we create a JOYFUL experience for our clients.

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Services Provided

  • Project coordinator
  • Reputable Contractors
  • Staging for re-sale
  • Floor plans
  • Coordination of all Design Elements to complete your project including furniture, area carpets, window treatments, lighting, accessories & art


Home Interior Design in Newmarket, ON

E-Design in Newmarket



Distance is never a problem with Katherine Joy Interiors as modern technology gives us the opportunity to work on clients homes across Canada and beyond. This home is in Ottawa. E-Design is a long distance decorating and design service we offer.


Turn-Key Design Solutions in Newmarket


Turn-Key Design Solutions

Would you like to have your renovation completed in your home while you are away? Consider missing out on the mess, the headaches & the coordination of tradesmen and contractors? Clients come back to a fully renovated home complete with all furnishings!


Modern Design Solutions

Picturing new colors, furniture, and features in your home is now simpler than ever, especially when you partner with Katherine Joy Interiors. Our experts use state-of-the-art technology to plan your new design, rendering floorplans in 3D for quick and convenient viewing. Not only that, we offer personalized color consultations, so you can easily find the right color for any room in your home.

Contact our home interior design experts today to start planning your new room makeover. We serve clients throughout the country from our headquarters in Newmarket, Ontario.