What we do
Inline Fiberglass is renowned as the most experienced manufacturer of high performance fiberglass windows and doors. Inline carries the largest all fiberglass product lines along with the greatest variety of glass, colors and other options. We oversee every step of manufacturing from the pultruding of the frames to the finished product. This allows us to provide the highest level of quality and ensure the smallest carbon footprint in the industry.
Inline Fiberglass is also a world leader in the development, design and application of fiberglass pultrusion technology. Inline's leading product, thin walled fiberglass lineals are used in a myriad of applications. As a fully integrated manufacturing operation, Inline designs and pultrudes in-house standard and custom lineals.
With its headquarters and main production facilities located in Toronto, Canada. Inline's window profiles, windows, doors and production equipment are sold around the world. Inline Fiberglass conducts rigorous testing at its own state-of-the-art facility to ensure the highest quality, performance, energy efficiency and compliance to various standards and specifications.
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Our Commitment to Excellence
Inline Fiberglass is proud to partner with industry-leading organizations to promote energy efficiency and sustainable design.
News
15.05.2013
With nearly 1,000,000 ENERGY STAR qualified windows, Inline Fiberglass is proud to announce that its window has achieve the top spot. Our window has achieved the highest Energy Rating(ER) in Canada. Inline also has 5 out of the Top 10 ER rated window products.
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24.03.2013
For the third consecutive year, Inline Fiberglass Ltd has achieved the status of one of the Top 100 Window Manufacturers. This award is even more extraordinary as Inline is again the only all fiberglass window manufacturer to make this prestigious list. This achievement is a result of our commitment in providing the highest standard of quality and the endless pursuit to provide the best engineered fiberglass windows.
http://www.windowanddoor.com/t100inline_2013

01.02.2013
Inline will be working again for the third time with Bird Construction where we last provided our products for the award winning 60 Richmond St. building in downtown Toronto. The Brock University Project in St. Catharines is designed by Diamond & Schmidt Architects who Inline manufactured and installed windows for the state of the art environmental and energy efficient showcase building Evergreen Brix-Works project. We are very excited to be working with the best Architects and Constructors in Canada and for the honour of being chosen to provide our product for such a famous institute as Brock University.

10.01.2013
Inline will be again displaying at the International Builder Show. Inline will continue to provide its expertise along with its window products on display. This year will also be displaying a new exterior cladding system Therma Clad & developed by and for our partners at Vireo Corp. The Therma-Clad™ is a revolutionary high-performance fiberglass facade system. It not only provides superior R-Value enhancement to exterior wall enclosures, it also provides unmatched water penetration resistance, structural performance, and ultra durable surface coat finishes. Visit us at booth N1162 for more information.

10.04.2012
Striving to set a standard of excellence for new and replacement window in the fenestration industry is no easy task. Of the more than 10,000 window and door manufacturers, fabricators and assemblers in North America, Inline Fiberglass......

30.03.2012
Inline is very proud to have contributed to such a good cause and hopefully more worthwhile opportunities will present themselves for Inline's involvement. Inline's donation to the City of Toronto for this project will serve our community well into the future.
The building when completed with be another showcase location "straw bale construction" in the heart of the city and open to the public.

19.10.2011
According to Energy Star Canada, Inline's new Double Hung window is the highest rated in Canada. It outperformed all other Double Windows from every category including wood, aluminum, and PVC not to mention fiberglass. Not only did it out surpass the competition but took the Top 9 highest ratings and the best 12 of 13 spots.

07.09.2011
Inline is proud to announce the launch of their newest product. The Eternity Double Hung combines the best of both worlds; beauty and performance. Never before has a fiberglass window looked so good and performed so well. The Eternity was able to achieve a U value of a 0.16 along with an Air Infiltration of .07 CFM. Using our Synergy ™ glass, consumers can maximize the Solar Heat Gain Coefficient not found in traditional double hung windows. The Eternity was designed with classic style and traditional elegance. A sloped sill, recessed hardware and thinner sightlines allows for a unobstructed view with a maximum glass area. It also comes in a real interior oak veneer and the large variety of options that are available with all Inline products.

07.09.2011
Inline Fiberglass was recently featured on the Marilyn Denis Show. Marilyn and her Eco specialist Candice Bastista discuss the benefits of fiberglass windows along with heat mirror. Please click here to see the video.

07.07.2011
From October 4-7, 2011 Greenbuild will be hosted in Toronto. We invite all attendees to visit us at booth 6706. Inline will also be arranging a shuttle from the Convention Center to its headquarters for an Open House. This opportunity enables attendees to learn firsthand about Inline and how they are able to fabricate fiberglass windows with the smallest carbon footprint.

10.05.2011
Vert Design of Ottawa Ontario recently designed and completed the first ever Certified Passive House in Canada. Not only did this project achieve Passive House status but also a LEED Platinum rating. Chris Straka of Vert Design selected Inline Fiberglass’s Tilt and Turn windows with triple glazing.

25.04.2011
Inline Fiberglass is proud to announce that its windows tops the Energy Star list of fiberglass window category. Of all the fiberglass windows tested in Canada, Inline rated number one. Furthermore Inline also had six of its windows rank in the top ten list..
21.12.2010
Inline Fiberglass will be launching its newest product in Orlando, January 12 to 15. We will be located in booth W5253 in the Orange County Convention Center.
23.11.2009
Inline Fiberglass is honored to have been selected by Diamond & Schmidt Architects...

01.11.2009
In conjuction with the Win-Door Show 2009 , Inline Fiberglass will be holding an Open house on November 17-19.
