Get up to 30% off your entire order, AND a free upgrade to our Brilliance line | LIMITED FALL INSTALLATION SPOTS — BOOK NOW
Get up to 30% off your entire order, AND a free upgrade to our Brilliance line | LIMITED FALL INSTALLATION SPOTS — BOOK NOW
Living in Canada's capital means preparing your home for humid summers and frigid, snowy winters. Upgrade your property with Ottawa window replacement and door replacement solutions that maximize energy efficiency, reduce drafts, and improve insulation.
As long-standing Canadian manufacturers with deep roots in the window industry, Clera Windows + Doors is known for the highest-quality windows and doors Ottawa homeowners trust. With competitive prices, a comprehensive warranty, and a team of industry veterans, Clera makes your window and door project a future-proof investment for years to come.
Our local Ottawa team has been serving Ottawa for over 45 years!
Discover how affordable your new windows and doors can be with our latest promotions.
Clera Windows + Doors proudly serves the Greater Ottawa area and surrounding communities, including Nepean, Kanata, Orleans, Barrhaven, Sittsville, the townships of Carleton Place, Osgoode, Rideau, and into the Gatineau Region.
Book a free in-home consultation and learn more about our replacement windows and doors designed specifically for Ottawa's climate.
Ready to design your new windows, Ottawa? Or looking for patio doors with enhanced security features? Browse our complete collection of custom windows and doors, made with the latest advances in window technology, ENERGY STAR® certified, and backed by the best warranty on the market.
Upgrade to new windows featuring 100% pure virgin uPVC, advanced glass technology, durable frames, and more. Modern vinyl windows Ottawa homeowners trust.
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Choose from secure exterior doors Ottawa homeowners rely on. Designed for durability, insulation, and everyday performance.
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Enhance natural light and indoor-outdoor living with sliding patio doors and garden doors built for energy efficiency and long-term reliability.
Shop Patio Doors
For over four decades, Clera Windows + Doors has been a one-stop shop for Ottawa doors and windows, combining superior materials, custom design, and expert craftsmanship on energy-efficient home upgrades at factory-direct prices.
Unlike other Ottawa window replacement companies that resell third-party products, Clera Windows + Doors handles the entire process from manufacturing to expert installation. No dealer markups, just reliable vinyl windows and doors and a long list of satisfied clients that prove our commitment to exceptional service.
As your trusted partner for every windows and doors Ottawa project, we stand behind our products with pride.
With some of the highest ratings for customer satisfaction, it's clear why Clera is Ontario's most awarded window company!
9.2/10
on HomeStars
16x Homestars Winner
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From consultation to final installation, our local in-house team manages your door and window replacement Ottawa project with care, clarity, and attention to detail.
Upgrading your windows and doors should make life easier, not add stress. Clera Windows + Doors delivers a complete customer experience built around clear communication, reliable installation, and high-quality products designed to last.
Our local team understands the specific architectural styles and weather challenges of the Ottawa Region. We take the time to walk you through all project details, ensuring you feel confident in your selection. With thousands of satisfied clients across the city, we pride ourselves on being the windows and doors Ottawa experts who treat your home like our own.
