Business Details
45 Years
experience
Trusted Replacement Windows & Doors in London, ON
Centennial Windows is a Canadian family-owned and operated business established in 1981, with over 43 years of experience in manufacturing, installing, and servicing high-quality windows and doors. Our end-to-end solutions combine cutting-edge energy efficiency with customizable designs, serving homeowners across Ontario with a commitment to integrity, innovation, and customer satisfaction. As the first ENERGY STAR-certified window and door company in Canada, we have completed over 500,000 installations and maintain a lifetime No Fine Print Warranty, reflecting our accountability for every stage of the process.Our team of factory-trained professionals ensures seamless in-home consultations, local manufacturing, and expert installation, backed by industry-leading accreditations and a Better Business Bureau A+ rating. We prioritize environmental responsibility, community engagement, and ethical business practices, offering rebates and financing options to enhance accessibility while maintaining $5 million in liability insurance for customer protection.
Services
Replacement Windows
Entry Doors
Patio Doors
Custom Window Manufacturing
Energy-Efficient Doors
Details
- Year established: 1981
Highlights and features
- We offer 43 years of expertise in Canadian window and door manufacturing.
- Our products are ENERGY STAR-certified for superior energy efficiency.
- We provide a lifetime No Fine Print Warranty on products and installation.
- Our factory-trained installers ensure precise, professional service.
- We hold a Better Business Bureau A+ rating for ethical business practices.
Associations and certifications
- ENERGY STAR
- Keystone Certifications
- Better Business Bureau
Services
Replacement Windows
Our custom vinyl replacement windows are ENERGY STAR-certified and available in multiple styles, colours, and sizes. Designed for energy efficiency, they reduce heating and cooling costs while enhancing home aesthetics. Backed by a lifetime No Fine Print Warranty, our windows are manufactured locally and installed by factory-trained professionals.
Entry Doors
Durable fibreglass and steel entry doors combine security with customizable designs, including decorative options and 29 exterior colours. ENERGY STAR-certified for energy efficiency, these doors are covered under our lifetime warranty and installed by in-house experts to ensure precise fit and functionality.
Patio Doors
Energy-efficient patio doors offer seamless indoor-outdoor transitions with durable materials and modern designs. Available in sliding or garden styles, they feature customizable colour options and are backed by our lifetime warranty, ensuring long-term performance and customer satisfaction.
Custom Window Manufacturing
We manufacture made-to-order windows tailored to unique home dimensions, with options for bay, bow, or large feature installations. Using premium components and energy-efficient materials, our custom solutions ensure optimal fit, durability, and aesthetic appeal for residential properties.
Energy-Efficient Doors
Our ENERGY STAR-certified doors reduce energy consumption while maintaining durability and style. Available in fibreglass or steel, they feature advanced insulation and customizable finishes, supported by a lifetime warranty and expert installation for lasting performance.
People
George Warren
President and Owner
With over 43 years of leadership in the window and door industry, George Warren has driven Centennial's growth into a trusted Canadian manufacturer. His commitment to quality and innovation earned him the C.P. Loewen Award from Fenestration Canada.
Questions
What rebates are available for window and door replacements?
We offer an Instant Manufacturer's Rebate of $400 per window or door, and Ontario residents can combine it with the Ontario Provincial Rebate Program for additional savings.
Are your products ENERGY STAR-certified?
Yes, all our windows and doors are ENERGY STAR-certified, meeting strict energy efficiency guidelines to reduce utility costs and environmental impact.
What warranty do you provide?
Our No Fine Print Warranty covers products and installation for as long as you own your home, including transferability within 10 years of purchase.
Do you offer in-home consultations?
Yes, we provide free in-home consultations seven days a week from 10am-7pm, with no obligation and flexible scheduling.
What areas do you serve?
We serve homeowners in Kingston, London, Orangeville, Windsor, Newmarket, and surrounding communities across Southern Ontario.
Are your installers employees or subcontractors?
All our installers are factory-trained employees, ensuring consistent quality and accountability for every project.
Reviews (4)
Sue Tremblay
Jan 26, 2022
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We just had most of the windows replaced in our 1930’s home. Doug and Paco were excellent to work with. All of the work was completed in an efficient and professional manner. Everything was explained so well including the operation of the windows. We would not hesitate to recommend Centennial as well as Doug and Paco.
Chandra Ropke
Jan 25, 2022
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Had 4 windows done today by Matt and Jeff. Not only does the outcome look fantastic, but the guys were too. Super polite and respectful, and my pup even got lots of petting lol Thanks guys, you did a great job
Pat Allan
Jan 23, 2022
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Jon and Colin did a fantastic job installing 16’ patio windows/doors on my house. They were very professional and knowledgeable. Don the installation manager put my worries to rest and was very supportive. I would highly recommend them.
Garreth Kilbourne
Jan 15, 2022
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Scott & Ed are Very knowledgeable and Courteous. Their professionalism is really shown in their attention to detail. They did an excellent job installing some windows for me and I couldn't be happier with the end result. Will be requesting them again with the next project.
