Kalwall Corporation

What Kalwall Corporation does

Kalwall Corporation, founded in 1955 and headquartered in Manchester, New Hampshire, is a US-based manufacturer of high-performance translucent daylighting systems for architectural applications. The company's core technology is a proprietary Fiber-Reinforced Polymer (FRP) sandwich panel featuring face sheets embedded with millions of prismatic glass fibers that refract sunlight into balanced, glare-free, museum-quality diffuse light, combined with a load-bearing structural grid core and translucent insulation that delivers up to R-20 thermal performance, U-values as low as 0.05, solar heat gain coefficients as low as 0.04, and Clearspan skyroof configurations spanning in excess of 100 feet. The product portfolio spans facades (wall systems, unitized curtain walls, the 175CW Translucent Insulated Glazing Unit for third-party curtain walls, window replacement systems, and specialty safety applications), skyroofs (pre-engineered, custom, and Clearspan), skylights, and canopies, complemented by sub-brands Kal-Lite and Structures Unlimited.

Kalwall sells custom-configured projects on a quote-based pricing model through a global network of factory-trained technical sales representatives who work directly with architects, specifiers, and engineers across the project lifecycle from daylight modeling through installation. End markets are diversified across education, transportation (including airports), sports and recreation, healthcare, commercial, hospitality, arts, industrial, and research facilities, with no single segment appearing to dominate. The company generates revenue through hardware sales of translucent daylighting systems, supported by complimentary daylight modeling services and AIA/CES continuing education targeting the architectural community. In May 2026, Apogee Enterprises (NASDAQ: APOG) announced a definitive agreement to acquire Kalwall from the Keller family for $115 million ($105 million cash at closing plus up to $10 million in performance-based earnout through fiscal Q3 2027), with projected first-year revenue of approximately $85 million and initial adjusted EBITDA margin of approximately 15%, targeting 20% long-term with synergies.

Name

Kalwall Corporation

Legal name

Kalwall Corporation

Website

https://kalwall.com

Company type

Private

Founded year

1955

Operating status

Acquired

Headcount range

501–1,000 employees

Short description

Kalwall Corporation, founded in 1955 and based in Manchester, New Hampshire, manufactures proprietary Fiber-Reinforced Polymer translucent sandwich panels and daylighting systems (facades, skyroofs, skylights, canopies) for education, transportation, sports, healthcare, and specialty applications worldwide, sold via custom project-based pricing through factory-trained technical representatives.

Ownership category

akta.pro rank

Product category

Translucent Daylighting Systems

NAICS

Flat Glass Manufacturing (327211)

SIC

Flat Glass (3211)

akta.pro primary industry

Skylights, Roof Windows & Daylighting (IMADAFAL)

akta.pro secondary industries

Architectural & Building Glazing Systems (Curtain Wall/Storefront/Canopies) (IMADAHAB), Flashing, Edge Metal & Roof Accessories (IMADAFAJ)

Keywords

• Translucent daylighting systems
• Architectural facade panels
• Skylight manufacturing
• Composite sandwich panels
• Building envelope solutions

Headquarters

HQ city

Manchester

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Translucent Daylighting Systems Sales: Kalwall generates revenue through the sale of high-performance translucent daylighting systems including wall systems, skylights, skyroofs, and canopies. Products are sold directly through the company's technical sales team and network of local representatives. Projects involve custom specification through architects and engineers, with installation services supported by factory-trained teams.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Kalwall Corporation manufactures and sells high-performance translucent daylighting systems for architectural applications, including facades, skyroofs, skylights, and canopies. Its core product is a proprietary Fiber-Reinforced Polymer (FRP) sandwich panel with embedded prismatic glass fibers that diffuses sunlight into balanced, glare-free natural daylight. Products are custom-configured to project specifications for commercial, institutional, and industrial buildings and are sold directly to architects, specifiers, contractors, and building owners.

Product overview

Kalwall Corporation offers a comprehensive portfolio of high-performance translucent daylighting systems for architectural applications. The product line centers on proprietary composite sandwich panel technology featuring Fiber-Reinforced Polymer (FRP) face sheets, structural grid cores, and translucent insulation that delivers lambertian diffusion of sunlight. Vertical daylighting solutions include Facades/Wall Systems (standard wall systems, Unitized Curtain Walls, Window Replacement Systems, and Specialty Applications), while horizontal applications span Skyroofs (pre-engineered, custom, and Clearspan configurations) and Skylights (S-Line, Pyramids, Geo-roofs). The company also offers 175CW Translucent Insulated Glazing Units (TIGUs) for facade compatibility with third-party curtain wall systems. Supporting services include complimentary Daylight Modeling, technical sales engineering, and installation support. The product family is complemented by Structures Unlimited for custom structural configurations. All products are 100% manufactured in the USA with manufacturing headquarters in Manchester, NH.

Differentiator

Problem solved

Functional benefit

Brands

• Kal-Lite: Subsidiary brand for translucent daylighting products
• Structures Unlimited, Inc.

Products and services

• Facades (Wall Systems) Translucent wall and facade systems providing museum-quality daylighting for side-lighting applications. Available as standard wall systems, unitized curtain walls, or window replacements, delivering up to R-20 insulation while diffusing sunlight into balanced, glare-free illumination for commercial, institutional, and industrial buildings.
• 175CW Translucent Insulated Glazing Units (TIGUs) Translucent insulated glazing units designed for compatibility with third-party curtain wall systems. Features 44mm insulated units with U-factors of 0.28, 0.16, or 0.14, NFRC-certified performance values, panel sizes up to 5 x 15 feet, and weight under 1.5 lbs/ft2. Used by architects and curtain wall fabricators for facade applications.
• Unitized Curtain Walls Factory-unitized curtain wall systems combining Kalwall translucent panels with fixed or operable windows, opaque panels, and louvers. Enables rapid installation with superior fit compared to field-assembled systems, targeting commercial building projects requiring fast envelope completion.
• Window Replacement Systems High-performance commercial window replacement systems offering dramatic cost savings versus glass (400%+ over lifecycle per company claims), improved thermal insulation, and reduced reliance on artificial lighting through glare-free daylighting for building retrofits and modernization projects.
• Skyroofs Translucent skyroof systems for monumental toplighting applications. Available as pre-engineered (spans up to 24 feet), custom designs, or Clearspan systems achieving spans exceeding 100 feet when combined with aluminum substructures, used in atriums, gymnasiums, and large public spaces.
• Skylights Elegant and economical toplighting solutions including S-Line standard skylights, pyramid skylights, and Geo-roofs for various architectural applications, targeting commercial and institutional buildings needing natural overhead daylighting.
• Canopies Translucent canopy systems for enhancing transitional spaces and providing weather protection. Includes canopy panels, walkway coverings, and canopy system configurations for building entrances, walkways, and exterior sheltered spaces.
• Specialty Applications Specialized configurations including FM 4440 explosion venting panels for combustible dust/chemical facilities, hurricane-rated walls, high-impact options, blast-resistant construction meeting DOD Anti-Terrorism Force Protection regulations, and Factory Mutual certified systems for industrial and security-sensitive facilities.
• Daylight Modeling Services Complimentary daylight modeling service helping customers compare design options, verify light levels, and document code compliance before project implementation. Supports architects and specifiers through the design phase.

Quantifiable outcome

• Energy savings of 400%+ vs standard glazing systems for window replacement projects
• +5 more outcomes

Named customers25 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• VELUX Group: VELUX is the global leader in roof windows and skylights for residential and commercial buildings. While focused on the residential segment, VELUX is a broad incumbent that competes with Kalwall in non-residential skylight specification.
• AGC Glass North America: AGC is a major global glass manufacturer supplying architectural flat glass, high-performance coated glass, and specialty glazing products that overlap with Kalwall in commercial daylighting and facade applications.
• Saint-Gobain (SageGlass): Saint-Gobain is a global building materials giant whose SageGlass electrochromic and high-performance glazing products compete with Kalwall in the premium commercial daylighting segment, and whose scale threatens to close the performance gap.
• Oldcastle BuildingEnvelope (CRH): Oldcastle BuildingEnvelope is one of North America's largest suppliers of architectural glass and glazing systems, including curtain wall, storefront, and skylight products — competing broadly with Kalwall in commercial daylighting at greater scale.

Direct peers

• CrystaLite Inc. CrystaLite designs and manufactures custom skylights, sunrooms, and translucent daylighting systems for residential and light commercial applications, overlapping with Kalwall in the architectural skylight segment.
• Major Industries: Major Industries is a direct competitor in the translucent daylighting/skylight space, offering skylights, wall systems, and canopies for institutional and commercial buildings — closely mirroring Kalwall's product portfolio and target markets.
• Wasco Skylights: Wasco manufactures custom skylights, skyroofs, and translucent daylighting systems for commercial and residential applications, competing head-to-head with Kalwall in architectural specification-driven projects.
• Sunoptics (signify): Sunoptics manufactures prismatic skylights and daylighting systems for commercial, educational, and industrial buildings, directly competing with Kalwall's translucent panel-based approach in many of the same vertical markets.
• CPI Daylighting: CPI Daylighting manufactures polycarbonate and translucent panel skylight and wall systems for commercial, industrial, and agricultural buildings, competing directly with Kalwall in the translucent daylighting category.

Emerging players

• Solatube International: Solatube specializes in tubular daylighting devices (TDDs) — a different delivery mechanism but a directly competing daylighting solution targeting similar commercial, educational, and residential customers seeking glare-free natural light.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/KalwallChannel
• Facebookfacebook.com/kalwall
• LinkedInlinkedin.com/company/kalwall-corporation
• Instagraminstagram.com/kalwalldaylighting
• Xx.com/kalwall

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries2 records

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 Kalwall Corporation