Alside

What Alside does

Alside is a U.S. manufacturer and distributor of exterior residential building products, founded in 1947 and headquartered in Cuyahoga Falls, Ohio. The company produces vinyl and composite siding (Charter Oak, Prodigy, Odyssey Plus, ASCEND Composite Cladding), vinyl replacement and new-construction windows (Sovereign, Mezzo, Vero, Fusion, ValuePro, Fairfield Series), sliding patio doors (Promenade), and complementary metals, soffit, trim coil, and decorative accents. Its technical differentiator is proprietary (GP)2 technology — a Glass-Reinforced Polymer and Graphite-Infused Polystyrene composite used in ASCEND cladding that achieves Class A Fire Rating and 180 mph wind resistance — alongside ClimaTech insulated glass packages with ENERGY STAR Most Efficient certification in all U.S. climate zones.

Alside operates seven manufacturing plants across North America (Ohio, Iowa, North Carolina, Texas, Arizona, Washington) and distributes exclusively through more than 100 company-owned Alside Supply Centers and a network of select independent distributors, reaching licensed professional remodeling contractors and home builders. The company does not sell direct to consumers; instead it supports the contractor channel with field sales, the Alside Rewards loyalty program, Synchrony consumer financing, the Installed Sales Solutions installer network, and a Renoworks-powered design visualizer. The business is a brand under Associated Materials LLC, which was acquired by Strategic Value Partners (SVPGlobal) in 2022 and reorganized in 2025 into three distinct operating businesses (Associated Materials Innovations, Alside, and Gentek Building Products), with Dan Watkoske appointed CEO of Alside. Pricing is not publicly disclosed and follows periodic manufacturer price increases (e.g., 6% vinyl siding, 3% ASCEND) applied through the contractor channel.

Name

Alside

Legal name

Alside (brand of Associated Materials LLC)

Website

https://alside.com

Company type

Private

Founded year

1947

Operating status

Operating

Short description

Alside, founded in 1947 and based in Cuyahoga Falls, Ohio, manufactures and distributes exterior residential building products — vinyl and composite siding, vinyl windows, patio doors, trim coil, and decorative accents — sold exclusively through 100+ company-owned Supply Centers and independent distributors to licensed professional contractors and home builders across the United States.

Ownership category

akta.pro rank

Product category

Exterior Building Products Manufacturing

NAICS

Wood Window and Door Manufacturing (321911), Roofing, Siding, and Insulation Material Merchant Wholesalers (42333), Other Building Material Dealers (44418), Custom Architectural Woodwork and Millwork Manufacturing (337212)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442), Retail-Lumber & Other Building Materials Dealers (5211), Wholesale-Lumber & Other Construction Materials (5030)

akta.pro primary industry

Engineered Wood Siding, Trim & Mouldings (IMAMACAI)

akta.pro secondary industries

Custom Window & Door Fabrication & Replacement (HSAPAJAI), Soffit, Fascia & Eaves Repair/Replacement (HSAPAKAH), Automotive Exterior Trim & Appearance Components Manufacturing (Moldings/Badges/Grilles/Chrome/Cladding) (IMACAKAE)

Keywords

• Vinyl siding products
• Exterior building products
• Composite cladding
• Replacement windows
• Residential construction materials

Headquarters

HQ city

Cuyahoga Falls

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, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Building Products Sales: Alside generates revenue through the manufacture and distribution of exterior building products including siding, windows, and metals. Products are sold through company-owned supply centers and independent distributors exclusively to licensed professional contractors and home builders.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels7 records

Core offering

Alside manufactures and distributes residential exterior building products including vinyl and composite siding, insulated siding, steel siding, vinyl replacement windows, new construction windows, sliding patio doors, trim coil, soffit, gutters, and decorative accents. Products are sold exclusively to licensed professional remodeling contractors and home builders through more than 100 company-owned Supply Centers and a network of independent distributors across the United States, supported by seven manufacturing plants in North America.

Product overview

Alside is a manufacturer and distributor of exterior building products founded in 1947, offering an extensive portfolio of siding, windows, and related exterior products sold through company-owned Supply Centers and independent distributors. The product line centers on vinyl siding products (including Charter Oak flagship, Odyssey Plus, Coventry, Conquest, Williamsport, and Board & Batten profiles), composite cladding (ASCEND), insulated siding (Prodigy, Charter Oak Energy Elite), specialty siding (Versetta Stone, Architectural Classics, Pelican Bay One), and steel siding (Satinwood Select). The window portfolio includes vinyl replacement windows (Sovereign, Mezzo, Vero, Fusion, ValuePro) and new construction windows (Fairfield 80/70 Series, 1700/1900 Series), complemented by sliding patio doors (Promenade, 5100, A170). Supporting products include ClimaTech insulated glass packages, soffit systems, trim coil (Performance G8), gutters, and decorative accents (Trimworks, Exterior Accents). Products are distributed through over 100 Alside Supply Centers nationwide to licensed professional remodeling contractors and home builders.

Differentiator

Problem solved

Functional benefit

Brands

• ASCEND Composite Cladding: First-of-its-kind composite cladding solution combining beauty, performance and efficient installation with patented (GP)2 Technology.
• Prodigy
• Charter Oak
• ClimaTech
• Mezzo
• Sovereign
• Vero
• Fusion
• Promenade

Products and services

• ASCEND Composite Cladding Composite cladding engineered with Glass-Reinforced Polymer and Graphite-Infused Polystyrene (GP)² technology, offering Class A Fire Rating, wind resistance up to 180mph, and realistic woodgrain appearance. Sold to licensed professional contractors and home builders for residential exterior cladding applications.
• Charter Oak Vinyl Siding Flagship premium vinyl siding featuring TriBeam Design, available in multiple variants for residential exterior cladding. Sold through licensed professional contractors.
• Prodigy Next-Generation Insulated Siding Double 6-inch clapboard insulated vinyl siding with rigid foam insulation, true flat face, extended length design, and engineered vinyl surface with fade resistance. Sold through licensed professional contractors and home builders.
• Odyssey Plus Premium Vinyl Siding Premium vinyl siding offering excellent value with fully rolled-over nailing hem and double, staggered nail slots for superior attachment strength. Sold to professional contractors through Alside Supply Centers.
• Coventry by Alside Vinyl Siding Versatile and affordable vinyl siding featuring attractive cedar grain finish and rolled top nailing hem for enhanced product performance. Sold through licensed professional contractors.
• Sovereign Ultra-Premium Vinyl Windows Ultra-premium vinyl replacement windows designed for homeowners demanding premium quality, emphasizing style, comfort and energy efficiency. Sold through licensed professional contractors.
• Mezzo Energy-Efficient Vinyl Windows Elegant vinyl replacement windows combining style with strength and energy efficiency, available in Eastern and Western distribution areas with triple-pane glass package options. Sold through licensed professional contractors and home builders.
• Vero Vinyl Windows Quality vinyl replacement windows bringing enduring quality and everyday convenience with fusion-welded construction. Sold to professional contractors for residential replacement.
• Fusion Quality Vinyl Windows Quality vinyl windows maintaining attractive appearance inside and out with minimal upkeep through quality craftsmanship. Sold through licensed professional contractors.
• ValuePro Vinyl Windows Affordable vinyl windows with fusion-welded frame and sash and advanced weatherstripping for durability and energy cost reduction. Sold through licensed professional contractors and home builders.
• Fairfield Series Vinyl Windows New construction vinyl windows available in 80 Series for energy reduction and 70 Series emphasizing environmental friendliness for various architectural styles. Sold to home builders for new construction projects.
• ClimaTech Insulated Glass Packages High-performance insulated glass packages combining Low-E glass, argon gas, and Intercept Warm-Edge Spacer System for maximum energy savings; available in multiple tiers including ClimaTech PriME (ENERGY STAR Most Efficient). Sold as part of Alside window products to professional contractors.
• Promenade Sliding Patio Door Collection Sliding patio doors available in contemporary, classic, and French styles offering beauty and functionality, including West Coast Collection variants. Sold through licensed professional contractors and home builders.
• Versetta Stone Siding Manufactured stone siding offering the beauty of hand-laid stone with panels featuring virtually undetectable joints, suitable for new construction and remodeling projects. Sold through licensed professional contractors.
• Satinwood Select Steel Siding Premium steel siding with Kynar PVDF coating technology providing steel shield protection against wind, rain, cold and heat. Sold through licensed professional contractors.
• Greenbriar Vintage Beaded Soffit Vinyl soffit providing authentic look of beaded wood with low-gloss finish and matte texture capturing historical beauty and charm. Sold through licensed professional contractors.
• Performance G8 Trim Coil Premium aluminum trim coil with G8 Performance technology featuring easy handling and resistance to marring and scratching, available in 19 colors. Sold through licensed professional contractors and home builders.
• Trimworks Decorative Accents Engineered trim components capturing the look of handcrafted trim details including fluted corner posts, lineal/window trims, and beaded corners for architectural distinction. Sold through licensed professional contractors.

Quantifiable outcome

• 71.6% average cost recouped for vinyl replacement windows
• +2 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature6 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Consumer ReportscoreStrategic or Co-development PartnerConsumer Reports works to create a fair and just marketplace. As a mission-driven, independent, nonprofit member organization, CR empowers and informs consumers, incentivizes corporations to act responsibly, and helps policymakers prioritize the rights and interests of consumers.
• USGBC (U.S. Green Building Council)coreStrategic or Co-development PartnerUSGBC is a nonprofit organization dedicated to transforming the way buildings and communities are designed, built, and operated. Alside became a proud member in 2009.
• PEPA (Polymeric Exterior Products Association)coreStrategic or Co-development PartnerFormerly known as the Vinyl Siding Institute. PEPA sponsors independent, unbiased testing, inspection and certification of vinyl siding performance. Alside siding has been certified under PEPA programs.
• ENERGY STARcoreStrategic or Co-development PartnerJoint venture between EPA and DOE designed to encourage homeowners to purchase energy-efficient products. Alside became an ENERGY STAR partner in 1998 and has received multiple Partner of the Year awards.
• FGIA (Fenestration & Glazing Industry Alliance)coreStrategic or Co-development PartnerInternationally recognized for development of stringent performance standards. Every window and door with FGIA certification undergoes extensive independent testing.
• Synchrony FinancialcoreGTM or Marketing PartnerAlside Synchrony financing program enables contractors and homeowners to access promotional financing options for purchases. Contractor program offers dealer rebates and helps drive higher ticket sales.
• Habitat for HumanityminorGTM or Marketing PartnerAlside partnered with Habitat for Humanity to help fulfill a retired veteran's dream of home ownership, providing exterior building products.
• ASTM InternationalcoreStrategic or Co-development PartnerAmerican Society for Testing and Materials provides forum for development and publication of voluntary consensus standards for materials, products, systems and services.
• IGCC (Insulating Glass Certification Council)coreStrategic or Co-development PartnerNonprofit organization that sponsors and directs independent, third-party certification program for sealed insulating glass products with periodic accelerated laboratory tests and unannounced plant audits.
• NFRC (National Fenestration Rating Council)coreStrategic or Co-development PartnerEstablishes test criteria that set the standard for performance ratings for manufacturers of window and door products to provide accurate energy performance information.

Scale indicators5 records

Recent moves8 records

Expansion highlights4 records

Direct peers

• James Hardie Building Products: James Hardie is the leading manufacturer of fiber cement siding and related exterior building products for residential construction, directly competing with Alside's Charter Oak, Prodigy, and ASCEND siding lines in the same contractor channel.
• CertainTeed (Saint-Gobain): CertainTeed is a major manufacturer of vinyl and polymer siding, insulation, and exterior building products, competing head-to-head with Alside across siding, soffit, and trim categories through overlapping two-step distribution.
• Royal Building Products: Royal manufactures vinyl siding, soffit, mouldings, and exterior building products for residential and light commercial markets, competing directly with Alside's vinyl siding portfolio and serving similar professional contractor customers.
• CornerStone Building Brands (Ply Gem): CornerStone Building Brands (parent of Ply Gem) is one of the largest North American manufacturers of exterior building products including siding, windows, and accessories, directly overlapping with Alside's full product portfolio and contractor distribution model.
• LP Building Solutions: LP Building Solutions (Louisiana-Pacific) manufactures engineered wood siding (LP SmartSide), trim, and structural products that compete with Alside's Charter Oak, Prodigy, and ASCEND cladding lines in the residential siding category.
• MI Windows and Doors: MI Windows and Doors is one of the largest U.S. manufacturers of vinyl windows and patio doors, directly competing with Alside's vinyl window portfolio through similar builder and contractor distribution channels.

Broad incumbents

• Andersen Windows & Doors: Andersen is a leading national manufacturer of windows and patio doors with a broad portfolio spanning wood, composite, and fibrex materials, competing with Alside's Mezzo, Sovereign, and Promenade window and door lines through builder and contractor channels.
• Pella Corporation: Pella is a major U.S. window and door manufacturer offering vinyl, wood, and fiberglass products through dealer and contractor networks, overlapping with Alside's vinyl window and patio door categories at multiple price points.
• JELD-WEN: JELD-WEN is a global manufacturer of windows, doors, and related building products, including vinyl and wood windows that compete with Alside's Mezzo, Vero, and Fairfield window lines through similar dealer and distributor channels.

Emerging players

• Associated Materials Innovations (parent affiliate): Associated Materials Innovations is a sister business under the same parent (Associated Materials LLC) that develops next-generation exterior products; it shares manufacturing know-how with Alside and could either source innovation into or compete for the same contractor wallet.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Alside