We make windows like he makes espresso. Precisely. Beautifully.

Get a free estimate

Please select the Star and click the submit button.


Buy 1, Get 1 50% off

all window & door products + Take 150 days to pay with zero interest added

7 Great Reasons To Choose Clera

  • 100% Canadian Ownership - Serving Since 1978
  • Free At Home Consultation
  • Buy Direct! We Manufacture & Install so You Save!
  • Lifetime Warranty
  • Voted Best Company for Windows and Doors by HomeStars
  • Top Choice Winner
  • Buy 1, Get 1 50% off all window & door products + Take 150 days to pay with zero interest added

New Windows in Ottawa

With a wide variety of styles and colours customized to your needs, you're sure to find the perfect new windows for your Ottawa home at Clera Windows+Doors. Because we only use top quality materials and all of our installations are done by our trained and experienced staff, we are able to offer a no-nonsense, fully transferrable lifetime warranty on all window hardware, components, and glass including no-cost replacement parts. Featuring a large selection of sizes, colours, and styles Clera has solutions for every home, style, and budget. Utilizing compression weather stripping and multi-chambered frames, we are able to create exceptional insulation against heat and cold as well as keeping moisture out. By using only the highest quality materials and our own specially trained installers, we guarantee you will be satisfied by providing you with a no-nonsense, transferrable warranty.

Talk to our Window
& Door Specialists

In business since 1978, we're known for our quality doors and new windows in Ottawa as well as for our excellent customer service. We custom manufacture your replacement vinyl windows and doors to your exact requirements and specifications in our factory in Concord, Ontario. Our certified quality program ensures that you get a top-notch installation from our own installers, many of whom have been with us for more than 20 years. With Clera Windows+Doors, there's no middle man, just straight talk and an honest approach. If you need new windows in Ottawa, there is no better choice!

Get your free estimate now!

Our Products


Replacement windows with a style you'll love. From fixed to sliding, awning and casement windows, bay and bow windows to specialty custom windows, Clera has a wide range of styles for every home.

Find Out More


Clera Doors - Exterior Doors with a style you'll love. Make a grand entrance with a new door from Clera. We offer enduring exterior door systems made from steel or fiberglass, as well as custom sliding patio, gliding french and storm doors. All are ENERGY STAR® approved, feature high quality hardware and combinations of panels and glass designs.

Find Out More

Clera Windows + Doors
56 Bongard Ave, Nepean
ON K2E 7Z9

4 Greenhaven Cres., Stittsville,
ON, K2S 2A4

Toll Free: 1-888-738-0738
Phone: 888-738-0738
Fax: 866-395-7054

Sales: sales@clerawindows.com
Service: service@clerawindows.com

Contact Our Head Office

  • Clera Windows + Doors by FM Industries Inc.
    31 Pennsylvania Avenue
    Concord, ON L4K 5V5

  • T: 905-738-1870
    F: 905-738-0586
  • E: sales@clerawindows.com
    E: service@clerawindows.com
  • © 2014 Certified Window Installers
    Energy Efficient Windows -
    FM INDUSTRIES™ All rights reserved.

COPYRIGHT © 2017 Certified Window Installers | Energy Efficient Windows - FM INDUSTRIES™. ALL RIGHTS RESERVED.

What our customers are saying about us

"Since Steve Mastrorillo founded Clera Windows + Doors by FM Industries in 1978, we�ve been known for our quality replacement windows and doors and for our excellent customer service." Honey Design

  • Coming Soon