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Seilis Construction is a family owned and operated design and build contracting company servicing Southern Simcoe Muskoka and the surrounding areas.  We are proud to be small business owners who deliver high end renovations and additions.  We work closely with our clients to understand the desired style and budget, creating the perfect solution for your space.​

Barrie Innisfil Renovation Bathroom Kitchen Contractor


Where to begin! Everything from day one with Seilis Construction was professional, timely and structured. Throughout the planning process, Kalven was a great sounding board for advice and helped guide the process of the work we were planning for. Once the work started, Kalven and his crew worked efficiently and constantly kept us up to speed on the project process. When it came time to do our final walk through, we really saw the craftsmanship of Kalven and his team. The attention to detail was impressive, and overall product was stunning. It’s clear how special this company is. Can’t recommend them enough!

Mark M, 2021

I’ve contracted Kalven for the last 2 projects and he is amazing. The site was always tidy and his work well thought through sticking to timeline commitments. His craftsmanship is exceptional with considerable attention to detail. Even with a designer plan in hand, he made improvements to it that had been overlooked. Thank you for 2 very good experiences with your company.

Caroline L, 2018

Seilis Construction came to our rescue when we needed our basement finished on a tight timeline. Our vision included an open concept living space with a three-piece bathroom, finished laundry room, closets, enclosed mechanical room and storage space. Kalven listened to our ideas, made pertinent recommendations and provided us with a written quote and timeline. He and his team exceeded our expectations, accommodating all our wishes, exhibiting care and professionalism throughout. The project was finished on time and on budget. The work site was always tidy. Their attention to detail was impeccable and their craftsmanship was first class. We are thrilled with the amazing end result and highly recommend Seilis Construction.

Brian and Monica C, 2020

Seilis Construction Barrie Innisfil Renovation Bathroom Kitchen Contractor
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