Top 100 Manufacturers of 2014: $20 Million to $30 Million

 Bungalow Mahogany entry door 


Product lines: Steel, wood and fiberglass residential entry doors; doorlites and bath glass
Headquarters: Houston
Employees: 105
General information: From its 180,000-square-foot manufacturing facility in Houston, GlassCraft offers unique premium entry door products. With 11 patents awarded in the past 28 months, GlassCraft’s Premium Fiberglass composite entry door line offers a wide range of prefinished and customizable door slabs and pre-hung entryways.






Hayfield Window & Door Co.


Product lines: Vinyl and vinyl clad wood windows for new construction and replacement
Headquarters: Hayfield, Minn.
Employees: 140
General information: Hayfield Windows has been manufacturing windows since 1951. Operating out of a 185,000-square-foot plant, it sells its Vinyl Classic window and Northern Classic window products through lumberyards and distributors in nine states throughout the Midwest.

Inline Fiberglass Ltd.


Product lines: Fiberglass windows and doors, fiberglass window reinforcements for aluminum and vinyl windows, and architectural custom profiles
Headquarters: Toronto, Ontario, Canada
Employees: 160
General information: Operating from two locations with a total of 175,000 square feet of manufacturing space, Inline reports it is the largest allfiberglass window and door manufacturer. The company supplies the residential and commercial markets with finished products for new construction and retrofit applications. In addition, it supplies its window systems to fabricators in the North American and worldwide market. Inline also provides other fiberglass reinforcements, sills, thermal breaks and custom profiles along with pultrusion equipment and technology.


Mathews Brothers Co.

Product lines: New construction and replacement PVC windows and patio doors; composite and ECore (R5) replacement windows; historic restoration wood windows

Window glass production in Belfast 

Headquarters: Belfast, Maine
Employees: 130
New product introductions: The company added a 3D printer in 2013, in order to produce small volume parts that would typically be impossible to procure from an outside vendor due to volume requirements, it reports. The printer also aids the company in designing new frame and sash profiles.
General information: In continuous operation since 1854, Mathew Brothers is the oldest window manufacturer in America. Exclusively offering wood windows for its first 130 years of operation, Mathews now offers full lines of PVC windows and doors.


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