What Lessard Group does

Groupe Lessard Inc. (Lessard Group) is a private Quebec-based designer, manufacturer, and installer of high-performance aluminum and glass building envelope systems serving the commercial, multi-residential, institutional, and industrial sectors across Quebec, Ontario, and the northeastern United States. Founded in 1998 from the merger of two predecessor firms, the company operates a 200,000+ sq. ft. manufacturing facility in Laval and employs 300–400+ staff across design, engineering, production, and permanent installation teams deployed in the Montreal and Ottawa regions.

Its core product portfolio spans the 8500/9500 Series Windows (European-style fixed, awning, hopper, casement, and frameless operable vents), 8555/9555/9000 Series French and balcony doors, 85WW and 95WW Series Window Walls (hybrid unitized systems for slab-to-slab and continuous facade applications), the 2000D/2000HP Series conventional curtain walls and the high-end 5000 Series (MP5000) Unitized Curtain Wall, plus 6000 Series Vestibules and skylights. All systems are engineered with polyamide thermal breaks, rain-screen principles with pressure equalization chambers, and extruded aluminum 6063-T6/T54 alloys, and are prefabricated in a clean factory environment to deliver precision, faster installation, and reduced on-site cost. The firm holds a strategic partnership with Béton préfabriqué du Lac (BPDL) that integrates Lessard windows directly into prefabricated concrete panels.

The business model is project-based and quote-driven: revenue is generated through one-time contracts for the design, manufacture, and installation of custom building envelopes with builders, developers, general contractors, and architects in Quebec, Ontario, and the northeastern US, supplemented by professional installation, repair, and maintenance services. Customers include marquee projects such as Symphonia Viu (43-storey), 900 St-Jacques (60+ storey), Holiday Inn Montreal (37-storey), the LEED-accredited Agropur Campus, the Green Globe-certified Nicol Building at Carleton University, and the mixed-use Espace Montmorency complex. The company is privately held with no disclosed institutional investors and is preparing a next-generation compression sliding patio door launch for 2026.

Name

Lessard Group

Legal name

Groupe Lessard Inc.

Website

https://lessard.ws

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

101–250 employees

Short description

Lessard Group is a Quebec-based manufacturer and installer of high-performance aluminum and glass building envelope systems — including unitized curtain walls, window walls, windows, and doors — serving commercial, multi-residential, institutional, and industrial projects across Canada and the northeastern United States.

Ownership category

akta.pro rank

Product category

Architectural Building Envelope Systems / Fenestration Manufacturing

NAICS

Metal Window and Door Manufacturing (332321), Ornamental and Architectural Metal Products Manufacturing (33232), Ornamental and Architectural Metal Work Manufacturing (332323)

SIC

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

akta.pro primary industry

Frames, Sashes, Mullions & Subframes (IMADAIAH)

Keywords

• Architectural aluminum systems
• Building envelope solutions
• Aluminum curtain walls
• Window wall systems
• Fenestration manufacturing

Headquarters

HQ city

Laval

HQ country

Canada

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Building Envelope Systems: Design, manufacture, and installation of complete aluminum and glass building envelope systems including windows, curtain walls, window walls, and doors for commercial, multi-residential, institutional, and industrial projects. Revenue generated through project-based contracts with builders, developers, and general contractors.
2. Professional Installation Services: Complete installation, repair, and maintenance services for all products. Permanent installation teams deployed in Montreal and Ottawa regions.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Lessard Group designs, manufactures, and installs high-performance aluminum and glass architectural building envelope systems, including unitized curtain walls, window walls, windows, doors, vestibules, and skylights. The company serves commercial, multi-residential, institutional, and industrial construction projects across Quebec, Ontario, and the northeastern United States. Products are custom-engineered and factory-prefabricated at the 200,000+ sq. ft. Laval facility, then installed by the company's own permanent installation teams in the Montreal and Ottawa regions.

Product overview

Groupe Lessard is a Quebec-based manufacturer of high-performance aluminum and glass architectural systems for building envelopes. The product portfolio consists of multiple integrated product lines: the 8500 Series Windows (European-style fixed, awning, hopper, casement, and false sash windows) for residential applications; the 9500 Series Windows featuring frameless operable vents; the 8555 Series French Door and 9555/9000 Series Balcony Doors for terrace and balcony access; the 85WW and 95WW Series Window Walls (hybrid systems for slab-to-slab and continuous facade applications); the 2000D/2000HP Series Conventional Curtain Walls and 5000 Series Unitized Curtain Walls (for low-rise and high-rise facades respectively); and the 6000 Series Vestibules. All products feature polyamide thermal breaks, rain screen technology, and are designed, manufactured, and installed by the company's 400+ employees at their Laval facility. The systems serve commercial, multi-residential, institutional, and industrial sectors across Quebec, Ontario, and the northeastern United States.

Differentiator

Problem solved

Functional benefit

Products and services

• 8500 Series Windows European-style window series featuring sophisticated rain screen principle. Includes fixed windows, awning windows (outswing), hopper windows (inswing), casement windows (inswing), and false sash windows. Made with extruded aluminum 6063-T6/T54 alloy with polyamide thermal break. Designed for residential and commercial high-rise applications.
• 9500 Series Windows High-performance window series with frameless operable window vents. Includes 95FS frameless awning operable window vents and 95FS frameless casement operable window vents with invisible frames for exterior opening.
• 8555 Series French Door (Inswing) Commercial grade aluminum French door with polyamide thermal break. Designed for terrace access with simplified mechanisms and unequalled sturdiness. Also available as terrace door (8000T Series) with enlarged leaf for multipoint locking mechanism.
• 9555 Series Balcony Door (Outswing) & 9000 Series Balcony Door (Inswing) Commercial grade aluminum balcony door system with pressure-balanced rain screen design. Series 9555 for exterior access, Series 9000 for interior access with key lock exterior entry capability. Multipoint locking and up to 250,000 operating cycle durability.
• 85WW Series Window Wall Unitized window wall system incorporating 8500 Series components with floating header for slab-to-slab installation in balcony positions. Architectural grade aluminum with polyamide thermal break, designed as rain screen with pressure equalization chamber.
• 95WW Series Hybrid Window Wall Hybrid unitized window wall system combining 5000 Series and 85WW Series components. Allows interior installation with concrete anchors accommodating slab deflection, plus interior glass replacement capability. Typically used for continuous facades on large buildings.
• 2000D Series and 2000HP Series Curtain Wall Structural aluminum mesh curtain wall for commercial applications. 2000D is standard series; 2000HP offers superior thermal performance for high-humidity environments such as pools. Typically used for low-rise building facades.
• 5000 Series Unitized Curtain Wall (MP) High-end unitized curtain wall prefabricated in factory environment. Designed for high-rise building facades with rain screen principle and pressure equalization chamber. Features polyamide thermal break and aluminum alloy 6063-T6/6061-T6 construction. Water infiltration resistance up to 720 Pa; air infiltration as low as 0.08 l/s-m2 at 300 Pa.
• 6000 Series Vestibule Vestibule system for building entrances, providing thermal separation and weather protection at entry points.
• 8200 Series Sliding Doors Sliding door system used in commercial applications. Referenced in the De la Montagne project for building access.
• Custom Skylight Systems Skylight systems integrated into building designs, including 3D precision fabricated units for curved facade applications such as the Nicol Building at Carleton University.
• Professional Installation Services Complete installation, repair, and maintenance services for all Lessard products. Permanent installation teams deployed in the Montreal and Ottawa regions, ensuring quality and safety control on construction sites.

Quantifiable outcome

• Up to 250,000 operating cycles durability for balcony doors
• +2 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles4 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.

• Béton préfabriqué du Lac (BPDL)coreStrategic or Co-development PartnerLong-time strategic partner for integrated prefabrication. Windows from Groupe Lessard are installed directly into concrete panels at BPDL's factory, accelerating building envelope completion, enhancing quality control in optimal factory conditions, and reducing installation costs. This partnership enables just-in-time delivery and improved coordination between building envelope and structure.

Scale indicators4 records

Recent moves11 records

Expansion highlights5 records

Direct peers

• Kawneer (Arconic): One of North America's largest manufacturers of aluminum architectural systems, including curtain walls, window walls, windows, and doors. Directly competes with Lessard in the high-rise residential and commercial building envelope market with a similar product portfolio and specification-driven sales model.
• Oldcastle BuildingEnvelope: Major North American manufacturer and supplier of architectural glazing systems, including unitized curtain walls, window walls, and storefronts. A direct competitor in the high-rise commercial and institutional curtain wall segment Lessard serves.
• Alumicor: Canadian manufacturer of aluminum architectural products including windows, doors, and curtain walls for commercial and institutional buildings. Closest geographically comparable peer to Lessard, serving overlapping Ontario/Quebec markets with a similar product portfolio.
• YKK AP America: Manufacturer of aluminum architectural products including unitized curtain walls, window walls, entrances, and storefronts. Competes directly with Lessard in the high-rise commercial and multi-residential building envelope market across North America.
• Reynaers Aluminium: Belgian-headquartered manufacturer of aluminum architectural solutions for windows, doors, curtain walls, and sliding systems. A direct competitor in the European-style high-performance window and curtain wall segment that Lessard's 8500 and 9500 series target.
• Schüco: German-based global manufacturer of high-performance aluminum and steel building envelope systems including curtain walls, windows, and doors. Competes with Lessard in premium high-rise projects where European-style rain screen and thermal break technology is specified.

Regional players

• Walters Group: Canadian structural steel and architectural metal fabricator serving commercial, institutional, and high-rise construction. Less of a direct overlap on aluminum glazing but is a comparable Canadian building envelope specialist serving similar developers and contractors.
• All Weather Windows: Canadian manufacturer of windows and doors for residential and light commercial construction. Geographically comparable Western Canadian peer with overlapping product categories (aluminum and PVC windows), though focused more on lower-rise residential than Lessard's high-rise specialty.

Broad incumbents

• Flynn Group: Major North American building envelope contractor specializing in curtain wall, window wall, and roofing installation. Less of a product manufacturer and more of a downstream installation peer, but competes for the same high-rise construction project specifications.

Emerging players

• Vitrocsa: Swiss manufacturer of ultra-minimalist architectural glazing systems including frameless sliding walls and windows. Comparable technology positioning at the premium end of the architectural envelope market, although smaller scale and more specialized than Lessard.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/GroupeLessard
• LinkedInlinkedin.com/company/groupe-lessard

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

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 Lessard Group