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Those who know, trust Ostaco windows and doors

For over 35 years, Ostaco has provided quality, customized products that meet and exceed performance and quality standards. With a wide range of colour options available, if you can’t find the colour you want, Ostaco offers a colour-matching services for most of its products.

Ostaco windows can be provided in all vinyl or with a clad wood interior, and Ostaco doors come with smooth fibreglass or wood-grain fibreglass. All Ostaco products are tested and certified at the highest levels by the National Fenestration Rating Council (NFRC) and the Canadian Standards Association (CSA).

Ostaco woodgrain fiberglass entry doorOstaco aluminium doorOstaco door

Ostaco

Since 1981, Ostaco’s mission has been to excel as a manufacturer of high quality vinyl windows and doors that set them apart from the competition. With Ostaco’s wide range of colour, size and exterior trim options, our team can customize an energy and budget efficient solution that is sure to fit your needs.
With Muskoka Window and Door Centre you can count on:
  • Attention to detail every step of the way
  • Outstanding after-sales service
  • Friendly Northern attitude
  • Warranty service on everything we sell
  • Exclusive area partnerships with quality manufacturers
  • Best selection of unique products
  • Peace of mind of getting your project done beautifully & on time
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Ostaco windows

Ostaco - manufacturer of some of Canada’s finest windows and doors

Ostaco products carry the highest available Energy Star efficiency rating. The Limited Lifetime Ostaco Warranty is one of the best in the industry, and is fully transferable and not prorated. There's a 20-year warranty on paint for all Ostaco products. As Ostaco’s official Muskoka dealer, we have a wide selection of their products. All Ostaco windows come in custom sizes and are manufactured to your specifications.
Visit our showroom to view our full Ostaco range.
Ostaco windows

Inspiration for home and cottage

If you can envision it, Muskoka Window and Door Centre can make it happen.

Andersen specialty windows & doorsCentor lift and slide door
Andersen picture windowsCentor specialty screen & bifolding door
More inspiration

Frequently asked questions

While all window materials are designed to be as low-maintenance as possible, fibreglass composite, all vinyl and architectural aluminum windows require the least maintenance.
Read more FAQs
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"I never hesitate to send new customers to Muskoka Window and Door Centre, knowing that they will be looked after well and given realistic, expert advice tailored to meet their needs and the architectural needs of their particular project."

David Gillett of David Gillett Design Ltd

February 5, 2018

“We rebuilt our cottage, and in the planning stages with our builder, Bill Ferguson, choose to work with Muskoka Window and Door Centre. They know Muskoka topography and the nuances involved. We’re thrilled with the results. We love our windows and doors, the quality is exactly what we were after, knowing these windows would last and handle the Muskoka climate changes. We REALLY appreciated the installation team, and all the service that we have received since we moved back in. MW&DC looked after the small details, which for us, made a big difference.”

The Bruntons, Lake Rosseau

August 6, 2015

“The fellows did an amazing job at our house. We are more than pleased! Thank you"

Dave H, Georgian Bay

October 4, 2022

“I was so pleased with the professionalism of your company and the employees who represent it! Trevor & Jack were "outstanding installing of the door and sidelights" - "they did an amazing job". A special thank you to Al for his guidance on the Sales Order."

Jim R, Port Carling - December 15, 2021

August 5, 2018

"The guys finished our Muskoka Room today and my wife and I are very pleased. The guys did a fantastic job and their professionalism and attention to detail is exemplary. Thank you for getting this done."

Pat & Jim, Bracebridge

March 29, 2022

"I just wanted to send you a quick note to thank you and to pass on my appreciation to the installers of the Centor doors. All the doors from Muskoka Windows and Doors look simply fabulous and we are so grateful to have worked with you both. Peter on all your expertise and patience helping us determine what exactly we wanted and Tammy for coordinating delivery and installation. We are looking forward to working with you in a few months with the order and installation of the phantom retractable screens."

Todd R, Haliburton

February 20, 2023

“We really appreciate the attention for the fine detail you gave our project.”

Nancy Brodie

October 4, 2017

"I wanted to specifically mention how delightful the three men were who came to install the windows. Chuck, Jack and Brad were professional, polite, clean and pleasant. We are very pleased with their work and would happily recommend them if ever needed."

Martha L, Muskoka

March 4, 2022

"I would like to extend our appreciation and satisfaction of the Warranty work your company recently completed on all the windows of our complex. It was very refreshing to experience a company that actually stands behind its workmanship and honours the attending Warranty. We heartily agree with your motto."

Ronald Berry, Simcoe Condo Corporation

August 1, 2018

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