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If you’re looking for an interior trim and door design company that you can depend on, you’ve come to the right place. Serving homeowners, contractors, and builders in Ontario, Big Mountain Interiors strongly believes that quality is everything. Call us today and get started. 

Business Hours

Monday to Friday: 8:00 AM – 6:00 PM

Saturday to Sunday: 9:00 AM – 5:00 PM


Contact Information

Big Mountain Interiors

Phone: 705 220 9002 


or estimate today



call us  - 705-220-9002

Beautiful White and Bright Bathroom in New Luxury Home with Large Vanity and Dark Blue Cab

let us elevate your space 

Contact us today for a quote today and let us elevate your space. Quality craftsmanship is only a phone call away...


get in touch today

Our total quality management process serves as proof to our dedication to meeting or exceeding your expectations. That’s why you can entrust all of your interior design and build needs to us. We take pride in providing excellent customer service and timeless designs. Get in touch with us today to get started!


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