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Business Details
36 Years
experience
Trusted Windows & Doors Manufacturer in Toronto
At Primary Seal, we take immense pride in being a trusted supplier of high-quality vinyl windows and exterior doors for homeowners, contractors, and architects. Our commitment to excellence begins with products designed, tested, and built to last a lifetime, ensuring replacements are a one-time necessity. Our team of consultants, installers, and after-service professionals dedicate themselves to delivering superior craftsmanship and maintaining the integrity of our offerings. We specialize in ENERGY STAR qualified windows featuring our patented Quad-Seal System, fusion-welded for unmatched strength and performance. With a wide array of glass, color, and grid options, we empower clients to create windows tailored to their architectural needs. Our exterior doors, including steel and fibreglass options, combine durability with aesthetic appeal, offering over 500 glass insert choices to complement any home.

Backed by a solid reputation for quality and customer satisfaction, we provide professional advice and installation services that guarantee value without compromising on standards. Our sliding vinyl patio doors integrate advanced technology for maintenance-free performance, ideal for new constructions or renovations. With decades of experience serving Toronto, Etobicoke, Regina, and beyond, we remain dedicated to innovation, transparency, and meeting the evolving demands of our clients. Whether you're a homeowner seeking energy efficiency or a contractor requiring premium materials, Primary Seal stands as your reliable partner for lasting solutions.
Services
Vinyl Windows Exterior Doors Steel Doors Fibreglass Doors Sliding Patio Doors Window Installation Door Installation Custom Glass Inserts Energy-Efficient Solutions Patio Door Replacement
Details
  • Year established: 1990
Highlights and features
  • We offer patented Quad-Seal System windows for superior strength and performance.
  • Our team provides professional advice and installation from concept to completion.
  • We supply ENERGY STAR qualified windows designed for energy efficiency and longevity.
  • We offer over 500 glass insert options for customized steel and fibreglass doors.
  • Our sliding vinyl patio doors combine advanced technology with maintenance-free durability.
Associations and certifications
  • ENERGY STAR
What people say
Great service Quality products Energy savings Professional installation Custom options
Services
Vinyl Windows
Our vinyl windows feature fusion-welded frames and the patented Quad-Seal System for exceptional durability and thermal efficiency. Designed to meet ENERGY STAR standards, they reduce energy costs while offering customizable options like glass types, grid patterns, and color finishes. Ideal for homeowners seeking long-term value and aesthetic flexibility.
Steel Doors
Crafted with corrosion-resistant steel and over 500 glass insert options, our steel doors combine security with style. Available in traditional or contemporary designs, they enhance curb appeal while providing superior insulation and low-maintenance performance for residential entrances.
Fibreglass Doors
Our fibreglass doors resist warping, cracking, and weathering, offering the look of real wood without its drawbacks. With a textured oak grain finish and customizable hardware, they deliver timeless elegance and durability for modern homes.
Sliding Patio Doors
The 7000 and 6000 series vinyl sliding doors merge advanced technology with heavy-duty performance. Designed for easy operation and energy efficiency, they provide seamless indoor-outdoor transitions and are perfect for renovations or new builds.
Window Installation
Professional installation ensures optimal performance of our windows, including precise fitting and sealing. Our certified technicians handle all aspects, from old window removal to final adjustments, guaranteeing airtightness and long-term satisfaction.
Questions
What types of windows do you offer?
We provide casement, awning, single/double sliding, and hung windows with customizable glass, color, and grid options.
Do you install exterior doors?
Yes, we offer steel and fibreglass entrance doors with over 500 glass insert choices for residential properties.
Are your products energy-efficient?
Our windows meet ENERGY STAR standards, featuring double-pane glass and Low-E argon gas for reduced energy costs.
Do you serve areas outside Toronto?
We serve Toronto, Etobicoke, Regina, and surrounding regions with professional installation services.
What warranties do you provide?
We offer comprehensive warranties covering materials and workmanship for long-term peace of mind.
How can I get a free quote?
Contact us at (416) 990-0609 or visit our North York showroom for a no-obligation quote.
Reviews (6)
Pauline Tribe
Oct 24, 2021 Report
We were very pleased with the final result of our window installation. From the office and warehouse staff to the installers everyone was courteous, and professional. Can't wait to have the balance of windows replaced, will definitely use and recommend Weather Seal Windows.
Jennifer Rotstein
Sep 26, 2021 Report
Effortless process from start to finish. Paul and his team took great care of us and the end result is absolutely stunning. Would definitely recommend this company to anyone in need of high quality windows.
Ruth Moses
Sep 15, 2021 Report
Paul and his team took great care of us and we are so happy with our new front door. Paul was very patient, provided options, and very easy to work with. We would definitely recommend this company.
Andrew Phillips
Aug 12, 2021 Report
We are completely impressed by the quality of both the windows and the installation. The original home builder left some nasty surprises but the installer took it in stride and ensured that the new windows were properly installed. We opted for an upgraded trim to match our existing trim and the windows look fantastic. Thank you Paul and the rest of the team!!!
Joey L.
May 11, 2021 Report
Purchased new front windows late last year for our older home. They made the entire process easy during these challenging times. Irena and Paul were extremely helpful and made this an easy process. The windows were made faster than they stated they would be and installation was done within hours. I was very pleased and what a difference new windows make! Will be looking to complete the rest of the house and front door soon!
Francesco Pisani
Jan 20, 2020 Report
We had 9 windows replaced by Primary Seal Windows 9 years ago, and now 4 of them have a failed seal. The purchase contract clearly says the warranty covers window seal failure for a period of 20 years, so I contacted them to make a claim on the warranty. They are refusing to honour the warranty because they say seal failure is only warranteed for 5 years (contract says 20) and that it's not even their windows, they bought the glass from another manufacturer, so that's not covered.