What Ply Gem does

Ply Gem Canada is a Calgary-headquartered manufacturer of residential exterior building products, operating as a division of Cornerstone Building Brands (North America's #1 manufacturer of windows, vinyl siding, and metal accessories). The company produces a full exterior envelope portfolio: windows in vinyl, aluminum-clad vinyl, and aluminum-clad wood configurations (Comfort, Design, Design Architectural, Signature, and Vista series); sliding and swinging patio doors; entry, garden, and fire-rated doors in steel, Fiber Stain, and Fiber Tuff materials; Mitten-brand vinyl siding across horizontal, vertical, and shake profiles with 37 colors, 5 lines, and 10 profiles; cellular PVC trim, mouldings, and accessories; and complementary accents such as vents, mounting blocks, and Cortex hidden fasteners. Underlying technology centers on energy-efficient glazing (LoE-coated Eco Gain 180, Eco Shield 270, Eco Max Shield 366, plus Neat Easy Clean self-cleaning glass), triple-glazed insulated units, compression-molded fiberglass door slabs with R-values up to six times wood, and rot-proof cellular PVC formulations.

Ply Gem sells through a three-tier distribution model in Canada: a certified professional installer network surfaced via a "Find a Pro" tool, authorized distributors surfaced via "Find a Distributor," and direct branch sales at 20+ company-owned locations spanning every province. The company targets two primary segments—homeowners undertaking new construction or renovation, and building professionals (builders, contractors, renovators)—with architects as a secondary spec-in audience. Pricing is not publicly disclosed; sales are quote-based through professional and distributor channels rather than direct consumer transactions. Differentiated competitive positioning rests on Cornerstone Building Brands' parent scale, Mitten's #1 Canadian vinyl siding brand position, lifetime transferable warranties, comprehensive pro-facing technical and installation documentation, and an Interactive Home Visualizer design tool. No public financials, funding events, M&A activity, leadership changes, or patent portfolio are disclosed in the available source material.

Name

Ply Gem

Legal name

Ply Gem Canada

Website

https://plygem.ca

Company type

Private

Operating status

Operating

Short description

Ply Gem Canada, a Calgary-based division of Cornerstone Building Brands, manufactures residential exterior building products—windows, patio doors, entry doors, Mitten vinyl siding, and PVC trim—sold across Canada through 20+ branches, distributors, and certified installers serving homeowners and building professionals.

Ownership category

akta.pro rank

Product category

Residential Exterior Building Products

NAICS

Metal Window and Door Manufacturing (332321), Wood Window and Door Manufacturing (321911)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442)

akta.pro primary industry

Frames, Sashes, Mullions & Subframes (IMADAIAH)

akta.pro secondary industry

Drywall Finishing & Corner Beads/Trims (Metal/PVC) (IMADAEAE)

Keywords

• Residential windows
• Exterior building products
• Vinyl siding
• Patio doors
• PVC trim moulding

Headquarters

HQ city

Calgary

HQ country

Canada

HQ region

North America

Offices20 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Infrastructure, Personnel, Marketing or Sales, Technology or R&D

Revenue model

1. Building Products Sales: Ply Gem generates revenue through the sale of exterior building products including windows, doors, patio doors, vinyl siding, and PVC trim products. Products are sold through a network of distributors and directly to building professionals and homeowners.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Ply Gem manufactures and sells residential exterior building products including windows (vinyl, aluminum-clad vinyl, aluminum-clad wood), patio doors, entry and garden doors (steel, fiberglass, wood), vinyl siding, and cellular PVC trim and moulding. The company operates in Canada as a division of Cornerstone Building Brands, distributing through company-owned branches, distributors, and a certified professional installer network serving both new construction and renovation markets.

Product overview

Ply Gem is a manufacturer of exterior residential building products, part of the Cornerstone Building Brands family. The company operates as a unified product portfolio offering multiple interconnected exterior building product categories. The core offerings include: Windows (in Vinyl, Aluminum-clad Vinyl, and Aluminum-clad Wood materials across Comfort Series, Design Series, Design Architectural Series, Signature Series, and Vista Series sub-brands); Patio Doors (Sliding and Swinging styles in multiple materials); Entry and Garden Doors (in Steel, Fiber Stain, Fiber Tuff, and Fire Rated variants); Mitten Vinyl Siding (with Sentry, Highland, Oregon Pride, and Sentry Variegated sub-brands across Horizontal, Vertical, and Shake profiles); and PVC Trim & Moulding (including Trim Boards, Skirt Boards, Corners, Mouldings, Trim Sheets, and Cortex Fasteners). Supporting products include Utility Vents, Gable Vents, and Mounting Blocks. The portfolio also includes glass technology options (Eco Gain 180, Eco Shield 270, Eco Max Shield 366, Neat Easy Clean) and the Fusion Colour Wrap colour solution. A Home Visualizer design tool enables customers to preview products on their homes.

Differentiator

Problem solved

Functional benefit

Brands

• Mitten: Vinyl siding brand marketed by Ply Gem Canada, known for exceptional durability, beautiful colour choices, and industry leading warranty. Mitten is identified as the #1 choice for professionals and homeowners in Canada.

Products and services

• Ply Gem Windows Residential windows manufactured for new construction and renovation, available in multiple styles and material constructions for homeowners and building professionals.
• Comfort Series Windows Triple-Glazed vinyl windows with full-size triple-glazed units designed to keep homes cozy in extreme cold conditions including Arctic climates.
• Design Series Windows Aluminum-clad vinyl windows offering durable exteriors with low-maintenance vinyl interiors and energy efficiency for residential applications.
• Design Architectural Series Windows Innovative window system with fully extruded aluminum cladding suited for modern style homes and buildings.
• Signature Series Windows Aluminum-clad wood windows featuring traditional craftsmanship with natural wood interiors that can be stained or painted, with aluminum cladding on the exterior for protection.
• Vista Series Windows Vinyl windows offering superior performance at an entry level price point for residential applications.
• Ply Gem Patio Doors Patio doors available in Sliding and Swinging styles, in Vinyl, Aluminum-clad Vinyl, and Aluminum-clad Wood materials, designed to coordinate with Ply Gem windows.
• Design Series Sliding Patio Doors Aluminum-Clad Vinyl sliding patio doors delivering customizable exterior appearance with low-maintenance interior for residential applications.
• Design Architectural Series Patio Doors Patio doors featuring fully extruded aluminum cladding to both interior and exterior, suited for modern style homes.
• Signature 670 Series Patio Doors French style sliding patio doors with traditional look featuring 4 1/2 inch top rail and stiles and 7 1/4 inch bottom rail.
• Comfort Series Patio Doors Vinyl sliding patio doors with standard 2 and 3 side configurations featuring single sliding sash, and 4-wide configurations with 2 bi-parting sashes.
• Ply Gem Entry Doors Exterior entry doors available in steel, Fiber Stain, and Fiber Tuff materials with hundreds of slab and glass options for customization.
• Ply Gem Garden Doors Swinging garden doors as an alternative to sliding patio doors, available in Fiber Stain, Fiber Tuff, and Steel with Eco Glass in double or triple glazing.
• Steel Entry Doors Steel entry doors combining durable metal skin and foam insulated core providing R-8 insulation value, resistant to moisture absorption and rotting.
• Fiber Stain Doors Compression molded doors offering beauty of traditional wood without warping, rot, or rust, with high impact strength and woodgrain species options.
• Fiber Tuff Doors Fiberglass doors that hold paint exceptionally well, won't dent, warp, rot or rust, and insulate up to six times better than wood doors.
• Fire Rated Doors 20-minute rated steel fire rated entry doors offering code compliant swing doors with exceptional value and superior performance.
• Mitten Vinyl Siding Vinyl siding products including Horizontal, Vertical, and Shake styles, available in 37 colours across 5 product lines and 10 profiles. Mitten is the #1 vinyl siding brand in Canada.
• Sentry Variegated Siding Ultra premium variegated siding featuring four multi-tone rustic colours with deep textured woodgrain for stunning stained cedar appearance.
• Sentry Siding Double 4 inch horizontal siding providing traditional wood cladding look with realistic shadow lines, available in 33 colours.
• Highland Siding Complete product line with 6 different .042 inch thick profiles in 19 colours with attractive features.
• Oregon Pride Siding Traditional product line with wide selection of .040 inch thick profiles with subtle wood-grain appearance in 16 colours.
• Colour Matched Shake 8 foot cedar shakes offering authentic wood-grain texture without maintenance, colour matched to Mitten Vinyl Siding in 26 colours.
• Ply Gem PVC Trim and Moulding Cellular PVC trim and moulding products including trim boards, skirt boards, corners, mouldings, trim sheets, and Cortex fasteners. Won't rot, warp, or split.
• Utility Vents High-performance polymer vents for maximum ventilation of dryers, bathroom exhaust fans, crawl spaces, kitchen exhausts, roofs and attics, available in 31 colours.
• Gable Vents Two-piece snap-on gable vent system compatible with all siding profiles, available in round, half-round, square, octagonal, and rectangular styles.
• Mounting Blocks Two-piece mounting blocks for installing electrical outlets, water faucets, light fixtures, mailboxes, house numbers and doorbells, available in 16 premium colours.
• Cortex Hidden Fastening System Hidden fastening system for PVC trim made from Ply Gem trim products that matches perfectly, eliminating need for caulking, sanding and painting nail holes.
• Home Visualizer Design Tool Interactive web tool allowing users to mix and match products, choose colours and styles for siding, windows, roofing, stone, and more to visualize their home exterior.

Quantifiable outcome

• Eco Max Shield 366 blocks solar gain and retains furnace heat with unprecedented three layers of silver coating
• +5 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Cornerstone Building BrandscoreStrategic or Co-development PartnerPly Gem and Mitten are part of the Cornerstone Building Brands family, North America's #1 manufacturer of windows, vinyl siding and metal accessories. This parent company relationship provides Ply Gem with significant scale, resources, and market reach across the North American building products market.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• JELD-WEN: One of the world's largest manufacturers of windows, doors, and related building products serving residential and light-commercial markets in North America. Directly competes with Ply Gem across windows and interior/exterior doors and shares a multi-brand distribution model.
• Andersen Windows & Doors: North American manufacturer of windows and doors across wood, vinyl, fiberglass, and aluminum-clad product lines. Directly competes with Ply Gem in the premium window and patio door segments with comparable energy-efficiency and material-positioning messaging.
• Masonite International: Leading global manufacturer of interior and exterior doors, including steel, fiberglass, and wood-edge doors for residential applications. A direct peer on entry and patio doors with overlapping builder and pro-channel distribution.
• All Weather Windows: Canadian manufacturer of vinyl windows and doors serving the new-home construction and renovation markets across Canada. A direct domestic competitor to Ply Gem in the Canadian vinyl window category.
• MI Windows and Doors: US-based manufacturer of vinyl and aluminum windows and sliding patio doors serving residential new construction and replacement. Competes with Ply Gem on price-tier vinyl windows and pro-channel distribution.
• Royal Building Products (Westlake): North American manufacturer of exterior building products including vinyl siding, PVC trim, mouldings, and soffit. Directly competes with Ply Gem and Mitten in vinyl siding and cellular PVC trim categories in Canada and the US.
• Simonton Windows: US manufacturer of vinyl windows and patio doors serving new construction and replacement, now part of a larger building products platform. Competes with Ply Gem on vinyl windows for builders and remodelers, particularly in value-tier segments.

Broad incumbents

• CertainTeed (Saint-Gobain): Diversified building products manufacturer offering vinyl and polymer siding, trim, insulation, roofing, and windows. Overlaps with Ply Gem across siding and trim but competes as part of a much broader portfolio rather than specializing in exteriors.
• Lowe's Canada (Rona): Major Canadian home improvement retailer selling a broad assortment of building products including windows, doors, siding, and trim. Functions as a downstream channel and competitor for renovation-driven demand that Ply Gem also addresses through branches and pros.

Emerging players

• James Hardie Building Products: Global leader in fiber-cement siding and trim, increasingly substituting for vinyl and PVC in premium residential applications. A structural competitor to Ply Gem's Mitten siding line in the upper end of the Canadian market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/ply-gem-canada

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Ply Gem